AIM: To investigate the effect of low central venous pressure (LCVP) on blood loss during hepatectomy for hepatocellular carcinoma (HCC). METHODS: By the method of sealed envelope, 50 HCC patients were randomize...AIM: To investigate the effect of low central venous pressure (LCVP) on blood loss during hepatectomy for hepatocellular carcinoma (HCC). METHODS: By the method of sealed envelope, 50 HCC patients were randomized into LCVP group (n=25) and control group (n=25). In LCVP group, CVP was maintained at 2-4 mmHg and systolic blood pressure (SBP) above 90 mmHg by manipulation of the patient's posture and administration of drugs during hepatectomy, while in control group hepatectomy was performed routinely without lowering CVP. The patients' preoperative conditions, volume of blood loss during hepatectomy, volume of blood transfusion, length of hospital stay, changes in hepatic and renal functions were compared between the two groups. RESULTS: There were no significant differences in patients' preoperative conditions, maximal tumor dimension, pattern of hepatectomy, duration of vascular occlusion, operation time, weight of resected liver tissues, incidence of post-operative complications, hepatic and renal functions between the two groups. LCVP group had a markedly lower volume of total intraoperative blood loss and blood loss during hepatectomy than the control group, being 903.9 ± 180.8 mL vs 2 329.4 ±2 538.4 (W=495.5, P〈0.01) and 672.4±429.9 mL vs 1 662.6±1 932.1 (W=543.5, P〈0.01). There were no remarkable differences in the pre-resection and post-resection blood losses between the two groups. The length of hospital stay was significantly shortened in LCVP group as compared with the control group, being 16.3±6.8 d vs 21.5 ± 8.6 d (W= 532.5, P〈0.05).CONCLUSION: LCVP is easily achievable in technique. Maintenance of CVP ≤4 mmHg can help reduce blood loss during hepatectomy, shorten the length of hospital stay, and has no detrimental effects on hepatic or renal function.展开更多
AIM: To characterize differences of arterial(ABG) and venous(VBG) blood gas analysis in a rabbit model of hemorrhagic shock. METHODS: Following baseline arterial and venous blood gas analysis, fifty anesthetized, vent...AIM: To characterize differences of arterial(ABG) and venous(VBG) blood gas analysis in a rabbit model of hemorrhagic shock. METHODS: Following baseline arterial and venous blood gas analysis, fifty anesthetized, ventilated New Zealand white rabbits were hemorrhaged to and maintained at a mean arterial pressure of 40 mm Hg until a state of shock was obtained, as defined by arterial p H ≤ 7.2 and base deficit ≤-15 mmol/L. Simultaneous ABG and VBG were obtained at 3 minute intervals. Comparisons of p H, base deficit, p CO2, and arteriovenous(a-v) differences were then made between ABG and VBG at baseline and shock states. Statistical analysis was applied where appropriate with a significance of P < 0.05. RESULTS: All 50 animals were hemorrhaged to shockstatus and euthanized; no unexpected loss occurred. Significant differences were noted between baseline and shock states in blood gases for the following parameters: p H was significantly decreased in both arterial(7.39 ± 0.12 to 7.14 ± 0.18) and venous blood gases(7.35 ± 0.15 to 6.98 ± 0.26, P < 0.05), base deficit was significantly increased for arterial(-0.9 ± 3.9 m Eq/L vs-17.8 ± 2.2 m Eq/L) and venous blood gasses(-0.8 ± 3.8 m Eq/L vs-15.3 ± 4.1 m Eq/L, P < 0.05). p CO2 trends(baseline to shock) demonstrated a decrease in arterial blood(40.0 ± 9.1 mm Hg vs 28.9 ± 7.1 mm Hg) but an increase in venous blood(46.0 ± 10.1 mm Hg vs 62.8 ± 15.3 mm Hg), although these trends were non-significant. For calculated arteriovenous differences between baseline and shock states, only the p CO2 difference was shown to be significant during shock.CONCLUSION: In this rabbit model, significant differences exist in blood gas measurements for arterial and venous blood after hemorrhagic shock. A widened p CO2 a-v difference during hemorrhage, reflective of poor tissue oxygenation, may be a better indicator of impending shock.展开更多
Objectives: Recent reports on venous blood gas analysis have shown that venous bicarbonate concentration is useful in the evaluation of the body acid-base status. Most of these reports have been based on the Bland-Alt...Objectives: Recent reports on venous blood gas analysis have shown that venous bicarbonate concentration is useful in the evaluation of the body acid-base status. Most of these reports have been based on the Bland-Altman analysis comparing arterial and venous blood gas values. We intended to elucidate any factors that decrease the agreement between venous and arterial bicarbonate concentrations, which might impair the usefulness of venous blood gas analysis. Methods: Healthy volunteers and patients with various diseases (n = 141) were evaluated by simultaneous arterial and venous blood sampling and Bland-Altman analysis. The venous-arterial bicarbonate concentration difference was compared between healthy volunteers and untreated respiratory alkalosis patients. Intentional hyperventilation (30 or 60 breaths/min, for 3 min) was also performed on 6 healthy volunteers and the venous-arterial bicarbonate concentration difference was evaluated. Results: The relative average bias in bicarbonate concentration was 2.00 mEq/l with venous bicarbonate higher than arterial bicarbonate with 95% limits of agreement of ±4.15 mEq/l. Hyperventilation challenges increased the venous-arterial bicarbonate concentration difference in an intensity-dependent manner. The venous-arterial bicarbonate concentration difference was higher in untreated respiratory alkalosis patients than in healthy volunteers (P Conclusion: Although venous bicarbonate may be useful to evaluate the body acid-base status, hyperventilation increases the venous-arterial bicarbonate concentration difference. Physicians should keep this phenomenon in mind.展开更多
In order to investigate the evolution of the venous patch blood inter face after implantation, an experimental model utilizing an autologous venous patch to repair an infrarenal abdominal aortic defect in rats was dev...In order to investigate the evolution of the venous patch blood inter face after implantation, an experimental model utilizing an autologous venous patch to repair an infrarenal abdominal aortic defect in rats was developed. A small piece of both the jugular vein and the aorta were first excised. After implantation and reestablishment of blood flow, the animals were subsequently sacrificed in groups of 3 at the following intervals: 10 seconds, 1, 10, 30 minutes, 1, 6, 12, 24 hours, 7, 30 and 90 days. All the patches and adjacent aortae were collected and studied using scanning electron microscopy. The results of our present show that: 1) the extensive endothelial lesion of both the autologous vein patch and the adjacent aorta is presented before implantation due to operative manipulation; 2) after blood flow reestablishment, the patch and the adjacent aortic interface are reactive to platelets and other blood cells; 3) the new cellular lining begins to appear from the 7th day after implantation, but it is not complete at 3 months; 4)from the model, the endothelial repair of autologous venous patch and its adjacent aorta is a very slow process.展开更多
Background: Diabetes Mellitus (DM) is one of the major health problems and morbidity causes in contemporary society worldwide. Recently, it has been suggested that the addition of citrate in plasma extraction decrease...Background: Diabetes Mellitus (DM) is one of the major health problems and morbidity causes in contemporary society worldwide. Recently, it has been suggested that the addition of citrate in plasma extraction decreases glucose degradation by endogenous enzymes, which could contribute in an important manner to the diagnosis of DM. However, this strategy has not been sufficiently evaluated. The present study aimed to evaluate glucose determination in serum and in plasma obtained with different anticoagulants. Methods: We obtained 20 venous blood paired samples on consecutive days from the same individual, collected in dry tubes with separator gel and in glass tubes with sodium fluoride and EDTA-K2, either in the presence or absence of sodium citrate. Glucose was determined by an oxidase/peroxidase method using the same system by a unique analyst. Results: Serum determinations were constantly higher than in plasma展开更多
AIM: Autologous blood donation (ABD) is mainly used to reduce the use of banked blood. In fact, ABD can be regarded as acute blood loss. Would ABD 2-3 d before operation affect the CVP level and subsequently result...AIM: Autologous blood donation (ABD) is mainly used to reduce the use of banked blood. In fact, ABD can be regarded as acute blood loss. Would ABD 2-3 d before operation affect the CVP level and subsequently result in less blood loss during liver resection was to be determined.METHODS: Eighty-four patients undergoing living donor left hepatectomy were retrospectively divided as group Ⅰ (GⅠ) and group Ⅱ (GⅡ) according to have donated 250-300 mL blood 2-3 d before living donor hepatectomy or not. The changes of the intraoperative CVP, surgical blood loss,blood products used and the changes of perioperative hemoglobin (Hb) between groups were analyzed and compared by using Mann-Whitney Utest.RESULTS: The results show that the intraoperative CVP changes between GⅠ (n = 35) and GⅡ (n = 49) up to graft procurement were the same, subsequently the blood loss,but ABD resulted in significantly lower perioperative Hb levels in GI.CONCLUSION: Since none of the patients required any blood products perioperatively, all the predonated bloods were discarded after the patients were discharged from the hospital. It indicates that ABD in current series had no any beneficial effects, in term of cost, lowering the CVP, blood loss and reduce the use of banked blood products, but resulted in significant lower Hb in perioperative period.展开更多
In experiments on newbom rats with stress related intracrani al hemorhage(ICH)using Doppler optical coberence tomognaphy(DOCT)we have shown that latent stage of ICH(4 h after stress)is characterized by decrease of ven...In experiments on newbom rats with stress related intracrani al hemorhage(ICH)using Doppler optical coberence tomognaphy(DOCT)we have shown that latent stage of ICH(4 h after stress)is characterized by decrease of venous blood outflow and the loss of sensitivity of sagittal vein to vasoconstrictor ffect of adrenaline.The incidence of ICH(24 h after stress)was accompanied by progressi on of early pathological changes in cerebral venous blood flow(CVBF)and development of venous insufficiency.Taking into consideration of this fact,we suggest that the suppression of CVBF related to the severity to the deleterious effect of stress on the brain hemodynamics in newborn rats.These facts allow us to conclude that the venous insufficiency with the loss of vasoconstrictor response to adrenaline is an informative and sensitive component of pattern of CVBF that can be important diagnostic criteria of risk of ICH development in newborns.展开更多
Aim: To evaluate the correlation of blood lactate and mixed venous oxygen saturation to predict outcome in off-pump coronary artery bypass grafting. Method: This is a randomized study including 30 patients. Blood lact...Aim: To evaluate the correlation of blood lactate and mixed venous oxygen saturation to predict outcome in off-pump coronary artery bypass grafting. Method: This is a randomized study including 30 patients. Blood lactate and mixed venous oxygen saturation were measured in 4 groups of patients—number of grafts, presence or absence of left main coronary artery disease, ejection fraction and serum creatinine. Blood samples were taken before induction, after grafting, on intensive care unit admission, 24 hours and 48 hours after surgery. The measured blood lactate and mixed venous oxygen saturation are compared to assess the outcomes in terms of duration of ventilation and intensive care unit stay. Results: The blood lactate and mixed venous oxygen saturation values increased post operatively but no statistically significant difference in three groups— number of grafts, left main coronary artery disease and ejection fraction. In serum creatinine group, the blood lactate value was found to be statistically significant after grafting in patients with creatinine <1.5 mg/dl, however, there was a significant disparity in numbers. Conclusion: Mixed venous oxygen saturation is a better predictor of morbidity than blood lactate in terms of intensive care unit stay in patients undergoing off pump coronary artery bypass grafting.展开更多
BACKGROUND:Epileptic seizures account for 1%–2% of all admissions of patients to the emergency department(ED). The present study aimed to determine whether venous blood pH,bicarbonate,base excess,and lactate levels t...BACKGROUND:Epileptic seizures account for 1%–2% of all admissions of patients to the emergency department(ED). The present study aimed to determine whether venous blood pH,bicarbonate,base excess,and lactate levels taken within 1 hour of the last seizure episode help to determine seizure recurrence in emergency departments.METHODS:A cross-sectional study was conducted in the emergency department(ED) between January and July,2012. Patients who were admitted to the emergency department consecutively were included in the study if they were 14 years or older and within 1 hour after last seizure. Demographics,seizure type,use of antiepileptic drugs,observation period at the emergency department,seizure recurrence,pH,bicarbonate,base excess,and lactate levels from venous blood gas analysis were determined.RESULTS:A total of 94 patients aged 14 years or older were included in the study. Of these patients,10.6%(n=10) experienced recurrent seizures in the observation period at the emergency department. To predict recurrent seizures in ED,threshold venous blood gas values were determined as follows:pH<7.245 [sensitivity 80%(95%CI:44–96),negative predictive value 96.9%(95%CI:88.3–99.4)],bicarbonate<17.1 mmol/L [sensitivity 80%(95%CI:44–96),negative predictive value 97%(95%CI:89–99.5)],base excess<–11.1 mEq/L [sensitivity 80%(95%CI:44–96),negative predictive value 97%(95%CI:89–99)],and lactate>7.65 mmol/L [sensitivity 80%(95%CI:44–96),negative predictive value 96.6%(95%CI:87–99)].CONCLUSION:If venous blood gas analysis is made on pH,base excess,lactate and bicarbonate immediately one hour after the last epileptic seizure episode,it is possible to predict whether the patient will have seizure recurrence.展开更多
Objective To determine the diagnostic significance of detecting the specific epithelial keratin CK-20 mRNA in peripheral venous blood from patients with bladder carcinomas. Methods Reverse transcription coupled with t...Objective To determine the diagnostic significance of detecting the specific epithelial keratin CK-20 mRNA in peripheral venous blood from patients with bladder carcinomas. Methods Reverse transcription coupled with two-step polymerase chain reaction (nested RT-PCR) was used to detect CK-20 mRNA expression in the peripheral blood from patients with blodder carcinomas. Results Detection of CK-20 mRNA expression was positive in 37 of 91 patients with bladder carcinoma (41 % ). Among 20 patients with distant metastasis, 17 were positive (85 % ). CK-20 mRNA was not detectable in the blood samples from 25 normal individuals. The frequency of positive CK-20 mRNA expression was signficantly higher in those with distant metastasis. Conclusion The presence of CK-20 mRNA expression in peripheral blood may be used as an early indicator of hematogenous metastasis of bladder carcinoma cells. 6 refs,1 tab.展开更多
BACKGROUND:Low central venous pressure(CVP) affects hemodynamic stability and tissue perfusion.This prospective study aimed to evaluate the optimal CVP during partial hepatectomy for hepatocellular carcinoma(HCC).METH...BACKGROUND:Low central venous pressure(CVP) affects hemodynamic stability and tissue perfusion.This prospective study aimed to evaluate the optimal CVP during partial hepatectomy for hepatocellular carcinoma(HCC).METHODS:Ninety-seven patients who underwent partial hepatectomy for HCC had their CVP controlled at a level of 0 to 5 mmHg during hepatic parenchymal transection.The systolic blood pressure(SBP) was maintained,if possible,at 90 mmHg or higher.Hepatitis B surface antigen was positive in 90 patients(92.8%) and cirrhosis in 84 patients(86.6%).Pringle maneuver was used routinely in these patients with clamp/unclamp cycles of 15/5 minutes.The average clamp time was 21.4±8.0 minutes.These patients were divided into 5 groups based on the CVP:group A:0-1 mmHg;B:1.1-2 mmHg;C:2.1-3 mmHg;D:3.1-4 mmHg and E:4.1-5 mmHg.The blood loss per transection area during hepatic parenchymal transection and the arterial blood gas before and after liver transection were analyzed.RESULTS:With active fluid load,a constant SBP ≥90 mmHg which was considered as optimal was maintained in 18.6% in group A(95% CI:10.8%-26.3%);39.2% in group B(95% CI:29.5%-48.9%);72.2% in group C(95% CI:63.2%-81.1%);89.7% in group D(95% CI:83.6%-95.7%);and 100% in group E(95% CI:100%-100%).The blood loss per transection area during hepatic parenchymal transection decreased with a decrease in CVP.Compared to groups D and E,blood loss in groups A,B and C was significantly less(analysis of variance test,P【0.05).Compared with the baseline,the blood oxygenation decreased significantly when the CVP was reduced.Base excess and HCO 3-in groups A and B were significantly decreased compared with those in groups C,D and E(P【0.05).CONCLUSION:In consideration of blood loss,SBP,base excess and HCO 3-,a CVP of 2.1-3 mmHg was optimal in patients undergoing partial hepatectomy for HCC.展开更多
Spontaneous venous rupture overlying a uterine fibroid is a rare cause of hemoperitoneum. A 38-year-old woman presented to the emergency department with acute onset of abdominal pain. The ultrasound revealed multiple ...Spontaneous venous rupture overlying a uterine fibroid is a rare cause of hemoperitoneum. A 38-year-old woman presented to the emergency department with acute onset of abdominal pain. The ultrasound revealed multiple fibroids and free fluid in the peritoneum. There was a significant drop of the hemoglobin and hematocrit. The patient underwent emergent exploratory laparoscopy. A subserosal uterine leiomyoma was found, with a bleeding vein on its basis and massive hemoperitoneum. Laparoscopic myomectomy was successfully performed with local injection of vasopressin and intraoperative autologous blood transfusion. This case suggests that spontaneous intraperitoneal haemorrhage associated with uterine fibroids, although rare, should be considered in women with hypovolemic shock and a pelvic mass.展开更多
Objective: To investigate the effects of low central venous pressure (LVCP) on blood loss and evaluate its influence on renal function in patients undergoing hepatectomy. Methods: Forty-six patients, ASA classific...Objective: To investigate the effects of low central venous pressure (LVCP) on blood loss and evaluate its influence on renal function in patients undergoing hepatectomy. Methods: Forty-six patients, ASA classification Ⅰ-Ⅲ, undergoing liver resection were randomized into LCVP group (n = 23) and control group (n = 23). In LCVP group, CVP was maintained at 2-4 mmHg and MBP above 60 mmHg during hepatectomy, while in control group hepatectomy was performed routinely without lowering CVP. Volume of blood loss during hepatectomy, volume of blood transfusion, and changes of renal functions were compared between the two groups. Results: There were no significant differences in demographics, ASA score, type of hepatectomy, duration of inflow occlusion, operation time, weight of resected liver tissues, and renal functions between the two groups. LCVP group had a significantly lower volume of total intraoperative blood loss (P 〈 0.01) and RBC transfusion (P 〈 0.05). Conclusion: Lowering the CVP to less than 5 mmHg is a simple and effective technique to reduce blood loss and blood infusion during liver resection, and has no detrimental effects on renal functions.展开更多
AIM: To investigate if sildenafil increases splanchnic blood flow and changes the hepatic venous pressure gradient (HVPG) in patients with cirrhosis. Phosphodiesterase type-5 inhibitors are valuable in the treatmen...AIM: To investigate if sildenafil increases splanchnic blood flow and changes the hepatic venous pressure gradient (HVPG) in patients with cirrhosis. Phosphodiesterase type-5 inhibitors are valuable in the treatment of erectile dysfunction and pulmonary hypertension in patients with end-stage liver disease. However, the effect of phosphodiesterase type-5 inhibitors on splanchnic blood flow and portal hypertension remains essentially unknown. METHODS: Ten patients with biopsy proven cirrhosis (five females/five males, mean age 54:1:8 years) and an HVPG above 12 mmHg were studied after informed consent. Measurement of splanchnic blood flow and the HVPG during liver vein catheterization were done before and 80 min after oral administration of 50 mg sildenafil. Blood flow was estimated by use of indocyanine green clearance technique and Fick's principle, with correction for non-steady state. RESULTS: The plasma concentration of sildenafil was 222 ± 136 ng/mL 80 min after administration. Mean arterial blood pressure decreased from 77 ±7 mmHg to 66 ± 12 mmHg, P = 0.003, while the splanchnicblood flow and oxygen consumption remained unchanged at 1.14 ± 0.71 L/min and 2.3 ± 0.6 mmol/ min, respectively. Also the HVPG remained unchanged (18 ± 2 mmHg vs 16 ± 2 mmHg) with individual changes ranging from -8 mmHg to ±2 mmHg. In seven patients, HVPG decreased and in three it increased. CONCLUSION: In spite of arterial blood pressure decreases 80 min after administration of the phosphodiesterase type-5 inhibitor sildenafil, the present study could not demonstrate any clinical relevant influence on splanichnic blood flow, oxygen consumption or the HVPG.展开更多
Purpose:This study examined the effect of handgrip exercise on hemodynamic indices to determine the most effective regimen for promoting blood circulation.Methods:Healthy individuals were divided into three treatment ...Purpose:This study examined the effect of handgrip exercise on hemodynamic indices to determine the most effective regimen for promoting blood circulation.Methods:Healthy individuals were divided into three treatment groups with each performing exercises using an electronic handgrip.Groups performed exercises to determine the most appropriate tap position,frequency,and duration.The hemodynamic indices were measured by Doppler ultrasound.Results:The best handgrip position was the weak tap position.Venous blood flow velocity and blood flow increased significantly with each exercise relative to the resting state(p<0.01).Venous blood flow velocity and blood flow peaked with handgrip exercise frequency of 25 times/min for 2 min(p<0.01).No significant differences were observed between sexes.Conclusion:Handgrip exercise is an effective method for improving blood circulation in the upper extremities.展开更多
<strong>Objective:</strong> To evaluate the effect of physical methods on the prevention of venous thrombosis in patients with peripherally inserted central catheter (PICC). <strong>Methods:</stro...<strong>Objective:</strong> To evaluate the effect of physical methods on the prevention of venous thrombosis in patients with peripherally inserted central catheter (PICC). <strong>Methods:</strong> Randomized controlled trials meeting the inclusion and exclusion criteria were retrieved from the following databases: Cochrane library, Pubmed, EMbase, Web of science, Ovid, CBM, CNKI, Wanfang, VIP, then Review Manage (RevMan) 5.3 software was used for data analysis. <strong>Results:</strong> A total of 24 RCTs including 3496 patients were analyzed in the study. The results of meta-analysis showed that various forms of upper limb movements could effectively decrease the incidence of venous thrombosis in the patients with PICC [<em>RR</em> = 0.23, 95% <em>CI</em> (0.16, 0.33), <em>P</em> < 0.01], upper limb movements could effectively improve the mean blood flow velocity of basilic vein [<em>MD</em> = 1.65, 95% <em>CI</em> (1.19, 2.11), <em>P</em> < 0.01]. <strong>Conclusion:</strong> Upper limb movements can effectively decrease the incidence of phlebothrombosis and improve the mean flow velocity of basilic vein in the patients undergoing PICC. Other forms of physical prevention methods need to be further studied due to insufficient sample size.展开更多
Objective:To analyze the application effect of feedforward control in outpatient blood specimen management.Methods:1,200 patients who had their venous blood collected in outpatient phlebotomy room of our hospital'...Objective:To analyze the application effect of feedforward control in outpatient blood specimen management.Methods:1,200 patients who had their venous blood collected in outpatient phlebotomy room of our hospital's outpatient clinic from January 2021 to April 2021 were selected as study subjects and divided into 600 cases in the control group and 600 cases in the observation group.The two groups of patients were compared in terms of their satisfaction with the staff,the efficiency of the nurses and the quality of nursing care,turnaround time before specimen analysis,the rejection rate of the blood specimens,and the time of result reporting.Results:After the implementation of feedforward control,patients'satisfaction with staff,nurses work efficiency and quality of care,turnaround time before specimen analysis,specimen rejection rate,and result reporting time in the observation group were significantly higher than those in the control group(P<0.05).Conclusion:The application of feedforward control in the management of outpatient blood specimens has significant effect,which effectively improves patients'satisfaction,enhances the efficiency of nurses and the quality of nursing care,shortens the turnaround time of specimens before analysis and the reporting time of results,and reduces the rejection rate of specimens.展开更多
There is increasing concern about the safety of homologous blood transfusion during cardiac surgery,and a restrictive transfusion practice is associated with improved outcome.Transfusion-free pediatric cardiac surgery...There is increasing concern about the safety of homologous blood transfusion during cardiac surgery,and a restrictive transfusion practice is associated with improved outcome.Transfusion-free pediatric cardiac surgery is unrealistic for the vast majority of procedures in neonates or small infants;however,considerable progress has been made by using techniques that decrease the need for homologous blood products or even allow bloodless surgery in older infants and children.These techniques involve a decrease in prime volume by downsizing the bypass circuit with the help of vacuumassisted venous drainage,microplegia,autologous blood predonation with or without infusion of recombinant(erythropoietin),cell salvaging,ultrafiltration and retrograde autologous priming.The three major techniques which are simple,safe,efficient,and cost-effective are:a prime volume as small as possible,cardioplegia with negligible hydric balance and circuit residual blood salvaged without any alteration.Furthermore,these three techniques can be used for all the patients,including emergencies and small babies.In every pediatric surgical unit,a strategy to decrease or avoid blood bank transfusion must be implemented.A strategy to minimize transfusion requirement requires a combined effort involving the entire surgical team with pre-,peri-,and postoperative planning and management.展开更多
AIM: To evaluate the efficacy of sequential blood purification therapy in the treatment of critical patients with hyperlipidemic severe acute pancreatitis.METHODS: Thirty-one intensive care unit(ICU) patients with hyp...AIM: To evaluate the efficacy of sequential blood purification therapy in the treatment of critical patients with hyperlipidemic severe acute pancreatitis.METHODS: Thirty-one intensive care unit(ICU) patients with hyperlipidemic severe acute pancreatitis treated at the Second Affiliated Hospital of Harbin Medical University were divided into either a study group(n = 15; July 1, 2012 to June 30, 2014) or a control group(n = 16; July 1, 2010 to June 30, 2012) based on the implementation of sequential blood purification therapy. The control group received continuous venous-venous hemofiltration(CVVH) on the basis of conventional treatments, and the therapeutic dose of CVVH was 30 m L/kg per hour. The study group received sequential plasma exchange and CVVH on the basis of conventional treatments. The anticoagulation regimen of CVVH is the regional citrate anticoagulation. Mortality rate on day 28, rates of systemic and local complications, duration of ICU, and time to target serum lipid level, as well as physiologic and laboratory indices were compared between the two groups.RESULTS: The mortality rate on day 28 was significantly lower in the study group than in the control group(13.33% vs 37.50%; P < 0.05). The duration of ICU stay was significantly shorter in the study group than in the control group(7.4 ± 1.35 d vs 9.19 ± 2.99 d, P < 0.05). The time to target serum lipid level was significantly shorter in the study group than in the control group(3.47 ± 0.52 d vs 7.90 ± 1.14 d, P < 0.01). There were no significant differences in the rates of systemic complications and local complications between the two groups(60% vs 50% and 80% vs 81%, respectively). In the comparisons of physiologic and laboratory indices, serum albumin and C-reactive protein were significantly better in the study group than in the control group after treatment(37.8 ± 4.6 g/L vs 38.9 ± 5.7 g/L, and 20.5 ± 6.4 mg/L vs 28.5 ± 7.1 mg/L, respectively, both P < 0.05). With the exception of plateletcrit, no other indices showed significant differences between the two groups.CONCLUSION: Sequential blood purification therapy is effective in the treatment of ICU patients with hyperlipidemic severe acute pancreatitis and can improve patient prognosis.展开更多
文摘AIM: To investigate the effect of low central venous pressure (LCVP) on blood loss during hepatectomy for hepatocellular carcinoma (HCC). METHODS: By the method of sealed envelope, 50 HCC patients were randomized into LCVP group (n=25) and control group (n=25). In LCVP group, CVP was maintained at 2-4 mmHg and systolic blood pressure (SBP) above 90 mmHg by manipulation of the patient's posture and administration of drugs during hepatectomy, while in control group hepatectomy was performed routinely without lowering CVP. The patients' preoperative conditions, volume of blood loss during hepatectomy, volume of blood transfusion, length of hospital stay, changes in hepatic and renal functions were compared between the two groups. RESULTS: There were no significant differences in patients' preoperative conditions, maximal tumor dimension, pattern of hepatectomy, duration of vascular occlusion, operation time, weight of resected liver tissues, incidence of post-operative complications, hepatic and renal functions between the two groups. LCVP group had a markedly lower volume of total intraoperative blood loss and blood loss during hepatectomy than the control group, being 903.9 ± 180.8 mL vs 2 329.4 ±2 538.4 (W=495.5, P〈0.01) and 672.4±429.9 mL vs 1 662.6±1 932.1 (W=543.5, P〈0.01). There were no remarkable differences in the pre-resection and post-resection blood losses between the two groups. The length of hospital stay was significantly shortened in LCVP group as compared with the control group, being 16.3±6.8 d vs 21.5 ± 8.6 d (W= 532.5, P〈0.05).CONCLUSION: LCVP is easily achievable in technique. Maintenance of CVP ≤4 mmHg can help reduce blood loss during hepatectomy, shorten the length of hospital stay, and has no detrimental effects on hepatic or renal function.
基金Carolinas Health Care System,Department of Surgery,Charlotte,North Carolina,United States
文摘AIM: To characterize differences of arterial(ABG) and venous(VBG) blood gas analysis in a rabbit model of hemorrhagic shock. METHODS: Following baseline arterial and venous blood gas analysis, fifty anesthetized, ventilated New Zealand white rabbits were hemorrhaged to and maintained at a mean arterial pressure of 40 mm Hg until a state of shock was obtained, as defined by arterial p H ≤ 7.2 and base deficit ≤-15 mmol/L. Simultaneous ABG and VBG were obtained at 3 minute intervals. Comparisons of p H, base deficit, p CO2, and arteriovenous(a-v) differences were then made between ABG and VBG at baseline and shock states. Statistical analysis was applied where appropriate with a significance of P < 0.05. RESULTS: All 50 animals were hemorrhaged to shockstatus and euthanized; no unexpected loss occurred. Significant differences were noted between baseline and shock states in blood gases for the following parameters: p H was significantly decreased in both arterial(7.39 ± 0.12 to 7.14 ± 0.18) and venous blood gases(7.35 ± 0.15 to 6.98 ± 0.26, P < 0.05), base deficit was significantly increased for arterial(-0.9 ± 3.9 m Eq/L vs-17.8 ± 2.2 m Eq/L) and venous blood gasses(-0.8 ± 3.8 m Eq/L vs-15.3 ± 4.1 m Eq/L, P < 0.05). p CO2 trends(baseline to shock) demonstrated a decrease in arterial blood(40.0 ± 9.1 mm Hg vs 28.9 ± 7.1 mm Hg) but an increase in venous blood(46.0 ± 10.1 mm Hg vs 62.8 ± 15.3 mm Hg), although these trends were non-significant. For calculated arteriovenous differences between baseline and shock states, only the p CO2 difference was shown to be significant during shock.CONCLUSION: In this rabbit model, significant differences exist in blood gas measurements for arterial and venous blood after hemorrhagic shock. A widened p CO2 a-v difference during hemorrhage, reflective of poor tissue oxygenation, may be a better indicator of impending shock.
文摘Objectives: Recent reports on venous blood gas analysis have shown that venous bicarbonate concentration is useful in the evaluation of the body acid-base status. Most of these reports have been based on the Bland-Altman analysis comparing arterial and venous blood gas values. We intended to elucidate any factors that decrease the agreement between venous and arterial bicarbonate concentrations, which might impair the usefulness of venous blood gas analysis. Methods: Healthy volunteers and patients with various diseases (n = 141) were evaluated by simultaneous arterial and venous blood sampling and Bland-Altman analysis. The venous-arterial bicarbonate concentration difference was compared between healthy volunteers and untreated respiratory alkalosis patients. Intentional hyperventilation (30 or 60 breaths/min, for 3 min) was also performed on 6 healthy volunteers and the venous-arterial bicarbonate concentration difference was evaluated. Results: The relative average bias in bicarbonate concentration was 2.00 mEq/l with venous bicarbonate higher than arterial bicarbonate with 95% limits of agreement of ±4.15 mEq/l. Hyperventilation challenges increased the venous-arterial bicarbonate concentration difference in an intensity-dependent manner. The venous-arterial bicarbonate concentration difference was higher in untreated respiratory alkalosis patients than in healthy volunteers (P Conclusion: Although venous bicarbonate may be useful to evaluate the body acid-base status, hyperventilation increases the venous-arterial bicarbonate concentration difference. Physicians should keep this phenomenon in mind.
文摘In order to investigate the evolution of the venous patch blood inter face after implantation, an experimental model utilizing an autologous venous patch to repair an infrarenal abdominal aortic defect in rats was developed. A small piece of both the jugular vein and the aorta were first excised. After implantation and reestablishment of blood flow, the animals were subsequently sacrificed in groups of 3 at the following intervals: 10 seconds, 1, 10, 30 minutes, 1, 6, 12, 24 hours, 7, 30 and 90 days. All the patches and adjacent aortae were collected and studied using scanning electron microscopy. The results of our present show that: 1) the extensive endothelial lesion of both the autologous vein patch and the adjacent aorta is presented before implantation due to operative manipulation; 2) after blood flow reestablishment, the patch and the adjacent aortic interface are reactive to platelets and other blood cells; 3) the new cellular lining begins to appear from the 7th day after implantation, but it is not complete at 3 months; 4)from the model, the endothelial repair of autologous venous patch and its adjacent aorta is a very slow process.
文摘Background: Diabetes Mellitus (DM) is one of the major health problems and morbidity causes in contemporary society worldwide. Recently, it has been suggested that the addition of citrate in plasma extraction decreases glucose degradation by endogenous enzymes, which could contribute in an important manner to the diagnosis of DM. However, this strategy has not been sufficiently evaluated. The present study aimed to evaluate glucose determination in serum and in plasma obtained with different anticoagulants. Methods: We obtained 20 venous blood paired samples on consecutive days from the same individual, collected in dry tubes with separator gel and in glass tubes with sodium fluoride and EDTA-K2, either in the presence or absence of sodium citrate. Glucose was determined by an oxidase/peroxidase method using the same system by a unique analyst. Results: Serum determinations were constantly higher than in plasma
文摘AIM: Autologous blood donation (ABD) is mainly used to reduce the use of banked blood. In fact, ABD can be regarded as acute blood loss. Would ABD 2-3 d before operation affect the CVP level and subsequently result in less blood loss during liver resection was to be determined.METHODS: Eighty-four patients undergoing living donor left hepatectomy were retrospectively divided as group Ⅰ (GⅠ) and group Ⅱ (GⅡ) according to have donated 250-300 mL blood 2-3 d before living donor hepatectomy or not. The changes of the intraoperative CVP, surgical blood loss,blood products used and the changes of perioperative hemoglobin (Hb) between groups were analyzed and compared by using Mann-Whitney Utest.RESULTS: The results show that the intraoperative CVP changes between GⅠ (n = 35) and GⅡ (n = 49) up to graft procurement were the same, subsequently the blood loss,but ABD resulted in significantly lower perioperative Hb levels in GI.CONCLUSION: Since none of the patients required any blood products perioperatively, all the predonated bloods were discarded after the patients were discharged from the hospital. It indicates that ABD in current series had no any beneficial effects, in term of cost, lowering the CVP, blood loss and reduce the use of banked blood products, but resulted in significant lower Hb in perioperative period.
基金This work was supported in part by RF Govern-mental contracts 11.519.11.2035,14.B37.21.0728,14.B37.21.056314.B37.21.0216 and grants:FiDiPro,TEKES Program(40111/11),Finland+1 种基金SCOPES EC,Uzb/Switz/RF,Swiss NSF,IZ74ZO_137423/1RF President's grant"Scientific Schools",1177.2012.2.,Russian Foundation for Basic Research Grant No.12-02-31204 mol-a and No.a-11-02-00560.
文摘In experiments on newbom rats with stress related intracrani al hemorhage(ICH)using Doppler optical coberence tomognaphy(DOCT)we have shown that latent stage of ICH(4 h after stress)is characterized by decrease of venous blood outflow and the loss of sensitivity of sagittal vein to vasoconstrictor ffect of adrenaline.The incidence of ICH(24 h after stress)was accompanied by progressi on of early pathological changes in cerebral venous blood flow(CVBF)and development of venous insufficiency.Taking into consideration of this fact,we suggest that the suppression of CVBF related to the severity to the deleterious effect of stress on the brain hemodynamics in newborn rats.These facts allow us to conclude that the venous insufficiency with the loss of vasoconstrictor response to adrenaline is an informative and sensitive component of pattern of CVBF that can be important diagnostic criteria of risk of ICH development in newborns.
文摘Aim: To evaluate the correlation of blood lactate and mixed venous oxygen saturation to predict outcome in off-pump coronary artery bypass grafting. Method: This is a randomized study including 30 patients. Blood lactate and mixed venous oxygen saturation were measured in 4 groups of patients—number of grafts, presence or absence of left main coronary artery disease, ejection fraction and serum creatinine. Blood samples were taken before induction, after grafting, on intensive care unit admission, 24 hours and 48 hours after surgery. The measured blood lactate and mixed venous oxygen saturation are compared to assess the outcomes in terms of duration of ventilation and intensive care unit stay. Results: The blood lactate and mixed venous oxygen saturation values increased post operatively but no statistically significant difference in three groups— number of grafts, left main coronary artery disease and ejection fraction. In serum creatinine group, the blood lactate value was found to be statistically significant after grafting in patients with creatinine <1.5 mg/dl, however, there was a significant disparity in numbers. Conclusion: Mixed venous oxygen saturation is a better predictor of morbidity than blood lactate in terms of intensive care unit stay in patients undergoing off pump coronary artery bypass grafting.
文摘BACKGROUND:Epileptic seizures account for 1%–2% of all admissions of patients to the emergency department(ED). The present study aimed to determine whether venous blood pH,bicarbonate,base excess,and lactate levels taken within 1 hour of the last seizure episode help to determine seizure recurrence in emergency departments.METHODS:A cross-sectional study was conducted in the emergency department(ED) between January and July,2012. Patients who were admitted to the emergency department consecutively were included in the study if they were 14 years or older and within 1 hour after last seizure. Demographics,seizure type,use of antiepileptic drugs,observation period at the emergency department,seizure recurrence,pH,bicarbonate,base excess,and lactate levels from venous blood gas analysis were determined.RESULTS:A total of 94 patients aged 14 years or older were included in the study. Of these patients,10.6%(n=10) experienced recurrent seizures in the observation period at the emergency department. To predict recurrent seizures in ED,threshold venous blood gas values were determined as follows:pH<7.245 [sensitivity 80%(95%CI:44–96),negative predictive value 96.9%(95%CI:88.3–99.4)],bicarbonate<17.1 mmol/L [sensitivity 80%(95%CI:44–96),negative predictive value 97%(95%CI:89–99.5)],base excess<–11.1 mEq/L [sensitivity 80%(95%CI:44–96),negative predictive value 97%(95%CI:89–99)],and lactate>7.65 mmol/L [sensitivity 80%(95%CI:44–96),negative predictive value 96.6%(95%CI:87–99)].CONCLUSION:If venous blood gas analysis is made on pH,base excess,lactate and bicarbonate immediately one hour after the last epileptic seizure episode,it is possible to predict whether the patient will have seizure recurrence.
文摘Objective To determine the diagnostic significance of detecting the specific epithelial keratin CK-20 mRNA in peripheral venous blood from patients with bladder carcinomas. Methods Reverse transcription coupled with two-step polymerase chain reaction (nested RT-PCR) was used to detect CK-20 mRNA expression in the peripheral blood from patients with blodder carcinomas. Results Detection of CK-20 mRNA expression was positive in 37 of 91 patients with bladder carcinoma (41 % ). Among 20 patients with distant metastasis, 17 were positive (85 % ). CK-20 mRNA was not detectable in the blood samples from 25 normal individuals. The frequency of positive CK-20 mRNA expression was signficantly higher in those with distant metastasis. Conclusion The presence of CK-20 mRNA expression in peripheral blood may be used as an early indicator of hematogenous metastasis of bladder carcinoma cells. 6 refs,1 tab.
基金supported by a grant from the Guangxi Natural Science(GKZ0447066)
文摘BACKGROUND:Low central venous pressure(CVP) affects hemodynamic stability and tissue perfusion.This prospective study aimed to evaluate the optimal CVP during partial hepatectomy for hepatocellular carcinoma(HCC).METHODS:Ninety-seven patients who underwent partial hepatectomy for HCC had their CVP controlled at a level of 0 to 5 mmHg during hepatic parenchymal transection.The systolic blood pressure(SBP) was maintained,if possible,at 90 mmHg or higher.Hepatitis B surface antigen was positive in 90 patients(92.8%) and cirrhosis in 84 patients(86.6%).Pringle maneuver was used routinely in these patients with clamp/unclamp cycles of 15/5 minutes.The average clamp time was 21.4±8.0 minutes.These patients were divided into 5 groups based on the CVP:group A:0-1 mmHg;B:1.1-2 mmHg;C:2.1-3 mmHg;D:3.1-4 mmHg and E:4.1-5 mmHg.The blood loss per transection area during hepatic parenchymal transection and the arterial blood gas before and after liver transection were analyzed.RESULTS:With active fluid load,a constant SBP ≥90 mmHg which was considered as optimal was maintained in 18.6% in group A(95% CI:10.8%-26.3%);39.2% in group B(95% CI:29.5%-48.9%);72.2% in group C(95% CI:63.2%-81.1%);89.7% in group D(95% CI:83.6%-95.7%);and 100% in group E(95% CI:100%-100%).The blood loss per transection area during hepatic parenchymal transection decreased with a decrease in CVP.Compared to groups D and E,blood loss in groups A,B and C was significantly less(analysis of variance test,P【0.05).Compared with the baseline,the blood oxygenation decreased significantly when the CVP was reduced.Base excess and HCO 3-in groups A and B were significantly decreased compared with those in groups C,D and E(P【0.05).CONCLUSION:In consideration of blood loss,SBP,base excess and HCO 3-,a CVP of 2.1-3 mmHg was optimal in patients undergoing partial hepatectomy for HCC.
文摘Spontaneous venous rupture overlying a uterine fibroid is a rare cause of hemoperitoneum. A 38-year-old woman presented to the emergency department with acute onset of abdominal pain. The ultrasound revealed multiple fibroids and free fluid in the peritoneum. There was a significant drop of the hemoglobin and hematocrit. The patient underwent emergent exploratory laparoscopy. A subserosal uterine leiomyoma was found, with a bleeding vein on its basis and massive hemoperitoneum. Laparoscopic myomectomy was successfully performed with local injection of vasopressin and intraoperative autologous blood transfusion. This case suggests that spontaneous intraperitoneal haemorrhage associated with uterine fibroids, although rare, should be considered in women with hypovolemic shock and a pelvic mass.
文摘Objective: To investigate the effects of low central venous pressure (LVCP) on blood loss and evaluate its influence on renal function in patients undergoing hepatectomy. Methods: Forty-six patients, ASA classification Ⅰ-Ⅲ, undergoing liver resection were randomized into LCVP group (n = 23) and control group (n = 23). In LCVP group, CVP was maintained at 2-4 mmHg and MBP above 60 mmHg during hepatectomy, while in control group hepatectomy was performed routinely without lowering CVP. Volume of blood loss during hepatectomy, volume of blood transfusion, and changes of renal functions were compared between the two groups. Results: There were no significant differences in demographics, ASA score, type of hepatectomy, duration of inflow occlusion, operation time, weight of resected liver tissues, and renal functions between the two groups. LCVP group had a significantly lower volume of total intraoperative blood loss (P 〈 0.01) and RBC transfusion (P 〈 0.05). Conclusion: Lowering the CVP to less than 5 mmHg is a simple and effective technique to reduce blood loss and blood infusion during liver resection, and has no detrimental effects on renal functions.
基金Rigshospitalet,University of Copenhagen,The Laerdal Foundation for Acute MedicineSavvaerksejer Jeppe Juhl and wife Ovita Juhls Foundation+2 种基金The Novo Nordisk FoundationThe AP-Mфller Foundationan unrestricted grant from Pfizer,Denmark
文摘AIM: To investigate if sildenafil increases splanchnic blood flow and changes the hepatic venous pressure gradient (HVPG) in patients with cirrhosis. Phosphodiesterase type-5 inhibitors are valuable in the treatment of erectile dysfunction and pulmonary hypertension in patients with end-stage liver disease. However, the effect of phosphodiesterase type-5 inhibitors on splanchnic blood flow and portal hypertension remains essentially unknown. METHODS: Ten patients with biopsy proven cirrhosis (five females/five males, mean age 54:1:8 years) and an HVPG above 12 mmHg were studied after informed consent. Measurement of splanchnic blood flow and the HVPG during liver vein catheterization were done before and 80 min after oral administration of 50 mg sildenafil. Blood flow was estimated by use of indocyanine green clearance technique and Fick's principle, with correction for non-steady state. RESULTS: The plasma concentration of sildenafil was 222 ± 136 ng/mL 80 min after administration. Mean arterial blood pressure decreased from 77 ±7 mmHg to 66 ± 12 mmHg, P = 0.003, while the splanchnicblood flow and oxygen consumption remained unchanged at 1.14 ± 0.71 L/min and 2.3 ± 0.6 mmol/ min, respectively. Also the HVPG remained unchanged (18 ± 2 mmHg vs 16 ± 2 mmHg) with individual changes ranging from -8 mmHg to ±2 mmHg. In seven patients, HVPG decreased and in three it increased. CONCLUSION: In spite of arterial blood pressure decreases 80 min after administration of the phosphodiesterase type-5 inhibitor sildenafil, the present study could not demonstrate any clinical relevant influence on splanichnic blood flow, oxygen consumption or the HVPG.
基金supported by a grant from the Medicine and Health Science Technology Development Program of Shandong(No.2014WS0481).
文摘Purpose:This study examined the effect of handgrip exercise on hemodynamic indices to determine the most effective regimen for promoting blood circulation.Methods:Healthy individuals were divided into three treatment groups with each performing exercises using an electronic handgrip.Groups performed exercises to determine the most appropriate tap position,frequency,and duration.The hemodynamic indices were measured by Doppler ultrasound.Results:The best handgrip position was the weak tap position.Venous blood flow velocity and blood flow increased significantly with each exercise relative to the resting state(p<0.01).Venous blood flow velocity and blood flow peaked with handgrip exercise frequency of 25 times/min for 2 min(p<0.01).No significant differences were observed between sexes.Conclusion:Handgrip exercise is an effective method for improving blood circulation in the upper extremities.
文摘<strong>Objective:</strong> To evaluate the effect of physical methods on the prevention of venous thrombosis in patients with peripherally inserted central catheter (PICC). <strong>Methods:</strong> Randomized controlled trials meeting the inclusion and exclusion criteria were retrieved from the following databases: Cochrane library, Pubmed, EMbase, Web of science, Ovid, CBM, CNKI, Wanfang, VIP, then Review Manage (RevMan) 5.3 software was used for data analysis. <strong>Results:</strong> A total of 24 RCTs including 3496 patients were analyzed in the study. The results of meta-analysis showed that various forms of upper limb movements could effectively decrease the incidence of venous thrombosis in the patients with PICC [<em>RR</em> = 0.23, 95% <em>CI</em> (0.16, 0.33), <em>P</em> < 0.01], upper limb movements could effectively improve the mean blood flow velocity of basilic vein [<em>MD</em> = 1.65, 95% <em>CI</em> (1.19, 2.11), <em>P</em> < 0.01]. <strong>Conclusion:</strong> Upper limb movements can effectively decrease the incidence of phlebothrombosis and improve the mean flow velocity of basilic vein in the patients undergoing PICC. Other forms of physical prevention methods need to be further studied due to insufficient sample size.
文摘Objective:To analyze the application effect of feedforward control in outpatient blood specimen management.Methods:1,200 patients who had their venous blood collected in outpatient phlebotomy room of our hospital's outpatient clinic from January 2021 to April 2021 were selected as study subjects and divided into 600 cases in the control group and 600 cases in the observation group.The two groups of patients were compared in terms of their satisfaction with the staff,the efficiency of the nurses and the quality of nursing care,turnaround time before specimen analysis,the rejection rate of the blood specimens,and the time of result reporting.Results:After the implementation of feedforward control,patients'satisfaction with staff,nurses work efficiency and quality of care,turnaround time before specimen analysis,specimen rejection rate,and result reporting time in the observation group were significantly higher than those in the control group(P<0.05).Conclusion:The application of feedforward control in the management of outpatient blood specimens has significant effect,which effectively improves patients'satisfaction,enhances the efficiency of nurses and the quality of nursing care,shortens the turnaround time of specimens before analysis and the reporting time of results,and reduces the rejection rate of specimens.
文摘There is increasing concern about the safety of homologous blood transfusion during cardiac surgery,and a restrictive transfusion practice is associated with improved outcome.Transfusion-free pediatric cardiac surgery is unrealistic for the vast majority of procedures in neonates or small infants;however,considerable progress has been made by using techniques that decrease the need for homologous blood products or even allow bloodless surgery in older infants and children.These techniques involve a decrease in prime volume by downsizing the bypass circuit with the help of vacuumassisted venous drainage,microplegia,autologous blood predonation with or without infusion of recombinant(erythropoietin),cell salvaging,ultrafiltration and retrograde autologous priming.The three major techniques which are simple,safe,efficient,and cost-effective are:a prime volume as small as possible,cardioplegia with negligible hydric balance and circuit residual blood salvaged without any alteration.Furthermore,these three techniques can be used for all the patients,including emergencies and small babies.In every pediatric surgical unit,a strategy to decrease or avoid blood bank transfusion must be implemented.A strategy to minimize transfusion requirement requires a combined effort involving the entire surgical team with pre-,peri-,and postoperative planning and management.
基金Supported by Natural Science Foundation of Heilongjiang Province,China
文摘AIM: To evaluate the efficacy of sequential blood purification therapy in the treatment of critical patients with hyperlipidemic severe acute pancreatitis.METHODS: Thirty-one intensive care unit(ICU) patients with hyperlipidemic severe acute pancreatitis treated at the Second Affiliated Hospital of Harbin Medical University were divided into either a study group(n = 15; July 1, 2012 to June 30, 2014) or a control group(n = 16; July 1, 2010 to June 30, 2012) based on the implementation of sequential blood purification therapy. The control group received continuous venous-venous hemofiltration(CVVH) on the basis of conventional treatments, and the therapeutic dose of CVVH was 30 m L/kg per hour. The study group received sequential plasma exchange and CVVH on the basis of conventional treatments. The anticoagulation regimen of CVVH is the regional citrate anticoagulation. Mortality rate on day 28, rates of systemic and local complications, duration of ICU, and time to target serum lipid level, as well as physiologic and laboratory indices were compared between the two groups.RESULTS: The mortality rate on day 28 was significantly lower in the study group than in the control group(13.33% vs 37.50%; P < 0.05). The duration of ICU stay was significantly shorter in the study group than in the control group(7.4 ± 1.35 d vs 9.19 ± 2.99 d, P < 0.05). The time to target serum lipid level was significantly shorter in the study group than in the control group(3.47 ± 0.52 d vs 7.90 ± 1.14 d, P < 0.01). There were no significant differences in the rates of systemic complications and local complications between the two groups(60% vs 50% and 80% vs 81%, respectively). In the comparisons of physiologic and laboratory indices, serum albumin and C-reactive protein were significantly better in the study group than in the control group after treatment(37.8 ± 4.6 g/L vs 38.9 ± 5.7 g/L, and 20.5 ± 6.4 mg/L vs 28.5 ± 7.1 mg/L, respectively, both P < 0.05). With the exception of plateletcrit, no other indices showed significant differences between the two groups.CONCLUSION: Sequential blood purification therapy is effective in the treatment of ICU patients with hyperlipidemic severe acute pancreatitis and can improve patient prognosis.