The effect of intraoperative goal-directed fluid therapy in patients under anesthesia for gastrointestinal surgery

BACKGROUND Intraoperative fluid management is an important aspect of anesthesia mana-gement in gastrointestinal surgery.Intraoperative goal-directed fluid therapy(GDFT)is a method for optimizing a patient's physiological state by monitoring and regulating fluid input in real-time.AIM To evaluate the efficacy of intraoperative GDFT in patients under anesthesia for gastrointestinal surgery.METHODS This study utilized a retrospective comparative study design and included 60 patients who underwent gastrointestinal surgery at a hospital.The experimental group(GDFT group)and the control group,each comprising 30 patients,received intraoperative GDFT and traditional fluid management strategies,respectively.The effect of GDFT was evaluated by comparing postoperative recovery,com-plication rates,hospitalization time,and other indicators between the two patient groups.RESULTS Intraoperative blood loss in the experimental and control groups was 296.64±46.71 mL and 470.05±73.26 mL(P<0.001),and urine volume was 415.13±96.72 mL and 239.15±94.69 mL(P<0.001),respectively.The postoperative recovery time was 5.44±1.1 days for the experimental group compared to 7.59±1.45 days(P<0.001)for the control group.Hospitalization time for the experimental group was 10.87±2.36 days vs 13.65±3 days for the control group(P<0.001).The visual analogue scale scores of the experimental and control groups at 24 h and 48 h INTRODUCTION Gastrointestinal surgery is one of the most common procedures in the field of general surgery[1],involving the stomach,intestines,liver,pancreas,spleen,and other internal abdominal organs[2,3].With advancements in surgical technology and anesthesia methods,the safety and success rates of surgery have significantly improved[4,5].However,intraop-erative fluid management remains a critical challenge[6].Traditional fluid management strategies often rely on experience and basic physiological parameters,which may lead to excessive or insufficient fluid input,thereby affecting postoperative recovery and complication rates.Intraoperative goal-directed fluid therapy(GDFT)is an emerging fluid management strategy that dynamically adjusts fluid input volume by monitoring the patient's hemodynamic parameters in real-time to optimize the patient's physiological state[7,8].GDFT has shown superiority in many surgical fields;however,its application in gastrointestinal surgery requires further research and verification[9,10].The application of intraoperative GDFT in clinical settings has gradually increased in recent years[11,12].Studies have demonstrated that GDFT can optimize tissue perfusion and oxygenation by precisely controlling fluid input and reducing the occurrence of postoperative complications[13,14].For example,in cardiac and major vascular surgeries,GDFT significantly reduced the incidence of postoperative acute kidney injury and cardiovascular events[15,16].Similarly,in abdominal surgery,GDFT effectively reduced postoperative infections and expedited recovery[17].However,studies on the utilization of GDFT in gastrointestinal surgery are relatively limited and they are confounded by contradictory findings[18].Traditional fluid management strategies typically rely on estimating fluid input volume based on the patient's weight,preoperative status,and basic physiological parameters[19].However,this method lacks real-time dynamic adjustment,which may result in either insufficient or excessive fluid input,consequently affecting postoperative recovery.Insufficient fluid input can lead to hypovolemia and inadequate tissue perfusion,whereas excessive fluid input can cause tissue edema and postoperative complications,such as pulmonary edema and heart failure.GDFT involves dynamically adjusting fluid input volume by monitoring the patient's hemodynamic parameters in real-time,such as cardiac output,pulse pressure variability,and central venous pressure.Commonly used monitoring equipment include esophageal Doppler and pulse wave profile analyzers[20].These devices provide real-time hemo-dynamic data to assist anesthesiologists in tailoring fluid therapy to a patient's specific condition.Firstly,the patient's volume responsiveness is assessed by preloading fluid;secondly,fluid input volume is dynamically adjusted based on real-time monitoring data;finally,vasoactive and inotropic drugs are administered in combination to further optimize the patient’s hemodynamic status.Through personalized fluid management,GDFT can more accurately maintain intraop-erative hemodynamic stability and reduce complications[21].Gastrointestinal surgery involves procedures on multiple organs,often requiring prolonged operative times and extensive tissue trauma,which presents challenges for intraop-erative fluid management.Surgical procedures can lead to significant bleeding and fluid loss,requiring prompt and effective fluid replenishment.In addition,the slow recovery of gastrointestinal function after surgery and susceptibility to complications such as intestinal obstruction and delayed gastric emptying elevate the necessity for postoperative fluid management.

Effects of fluid therapy combined with a preoperative glucose load regimen on postoperative recovery in patients with rectal cancer

BACKGROUND Patients with rectal cancer undergoing radical resection often have poor post-operative recovery due to preoperative fasting and water deprivation and the removal of diseased tissue,and have a high risk of complications.Therefore,it is of great significance to apply appropriate rehydration regimens to patients un-dergoing radical resection of rectal cancer during the perioperative period to improve the postoperative outcomes of patients.AIM To analyze the effects of goal-directed fluid therapy(GDFT)with a preoperative glucose load regimen on postoperative recovery and complications in patients undergoing radical resection for rectal cancer.METHODS Patients with rectal cancer who underwent radical resection(n=184)between January 2021 and December 2023 at our hospital were randomly divided into either a control group or an observation group(n=92 in each group).Both groups received a preoperative glucose load regimen,and routine fluid replacement and GDFT were additionally implements in the control and observation groups,res-pectively.The operative conditions,blood levels of lactic acid and inflammatory markers,postoperative recovery,cognitive status,hemodynamic indicators,brain oxygen metabolism,and complication rates were compared between the groups.RESULTS The colloidal fluid dosage,total infusion,and urine volume,as well as time to first exhaust,time to food intake,and postoperative length of hospital stay,were lower in the observation group(P<0.05).No significant differences were observed between the two groups in terms of operation time,bleeding volume,crystalloid liquid consumption,time to tracheal extubation,complication rate,heart rate,or mean arterial pressure(P>0.05).Compared with the control group,in the ob-servation group the lactic acid level was lower immediately after the surgery(P<0.05);the Mini-Mental State Examination score was higher on postoperative day 3(P<0.05);the pulse pressure variability(PPV)was lower at 30 min after pneumoperitoneum(P<0.05),though the differences in the PPV of the two groups was not significant at the remaining time points(P>0.05);tumor necrosis factor-αand interleukin-6 levels were lower on postoperative day 3(P<0.05);and the left and right regional cerebral oxygen saturation was higher immediately after the surgery and 30 min after pneumoperitoneum(P<0.05).CONCLUSION GDFT combined with the preoperative glucose load regimen is a safe and effective treatment strategy for im-proving postoperative recovery and risk of complications in patients with rectal cancer undergoing radical re-section.

Intraoperative Blood Pressure Lability Acts as a Key Mediator in the Impacts of Goal-Directed Fluid Therapy on Postoperative Complications in Patients Undergoing Major Spine Surgery

Objective Although goal-directed fluid therapy(GDFT)has been proven to be effective in reducing the incidence of postoperative complications,the underlying mechanisms remain unknown.The aim of this study was to examine the mediating role of intraoperative hemodynamic lability in the association between GDFT and the incidence of postoperative complications.We further tested the role of this mediation effect using mean arterial pressure,a hemodynamic indicator.Methods This secondary analysis used the dataset of a completed nonrandomized controlled study to investigate the effect of GDFT on the incidence of postoperative complications in patients undergoing posterior spine arthrodesis.We used a simple mediation model to test whether there was a mediation effect of average real variability between the association of GDFT and postoperative complications.We conducted mediation analysis using the mediation package in R(version 3.1.2),based on 5,000 bootstrapped samples,adjusting for covariates.Results Among the 300 patients in the study,40%(120/300)developed postoperative complications within 30 days.GDFT was associated with fewer 30-day postoperative complications after adjustment for confounders(odds ratio:0.460,95%CI:0.278,0.761;P=0.003).The total effect of GDFT on postoperative complications was-0.18(95%CI:-0.28,-0.07;P<0.01).The average causal mediation effect was-0.08(95%CI:-0.15,-0.04;P<0.01).The average direct effect was-0.09(95%CI:-0.20,0.03;P=0.17).The proportion mediated was 49.9%(95%CI:18.3%,140.0%).Conclusions The intraoperative blood pressure lability mediates the relationship between GDFT and the incidence of postoperative complications.Future research is needed to clarify whether actively reducing intraoperative blood pressure lability can prevent postoperative complications.

Effect of perioperative fluid therapy on early phase prognosis after liver transplantation

BACKGROUND: Although liver transplantation (LT) has made rapid progress, early pulmonary complications still occur. More attention should be paid to fluid therapy that may be an important factor leading to these complications. It is necessary to investigate the correlation between intraoperative and postoperative fluid therapy and early pulmonary complications after LT, then attempt to provide a reasonable fluid therapy in the perioperative period. METHODS: Sixty-two patients who had undergone Ff were enrolled and analyzed retrospectively. Based on early phase prognosis after LT, the 62 patients were divided into a non-pulmonary complication group and a pulmonary complication group. Twenty perioperative variables were analyzed in both groups to screen out several factors causing early pulmonary complications, then the parameters reflecting postoperative recovery were analyzed. RESULTS: The pulmonary complication group had 29 patients (46.77%), 3 (4.84%) of whom died during the perioperative period. Using monofactorial analysis for each variable, the two groups differed in the following variables: preoperative lung function, volume of intraoperative transfusion, volume of intraoperative bleeding, and volume of intraoperative net fluid retention and fluid balance (<=-500 ml) in >= 2 of the first 3 days after operation. Analysis of the relationship between multivariate factors and pulmonary complications after LT by logistic multivariate regression analysis showed that preoperative lung function, volume of intraoperative bleeding, and fluid balance (<=-500 ml) in >=-2 of the first 3 days after operation were influential factors. CONCLUSIONS: It is important to maintain fluid balance during the perioperative period of LT. If the hemodynamics are stable, appropriate negative fluid balance in the first 3 days after operation apparently decreases the incidence of early pulmonary complications after LT. These measures are associated with better postoperative recovery.

Goal-directed therapy in intraoperative fluid and hemodynamic management

Intraoperative fluid management is pivotal to the outcome and success of surgery, especially in high-risk proce- dures. Empirical formula and invasive static monitoring have been traditionally used to guide intraoperative fluid management and assess volume status. With the awareness of the potential complications of invasive procedures and the poor reliability of these methods as indicators of volume status, we present a case scenario of a patient who underwent major abdominal surgery as an example to discuss how the use of minimally invasive dynamic monitoring may guide intraoperative fluid therapy.

Perioperative restricted fluid therapy preserves immunological function in patients with colorectal cancer

AIM: To investigate the effect of perioperative restricted fluid therapy on circulating CD4+/CD8+ T lymphocyte ratio, percentage of regulatory T cells (Treg) and postoperative complications in patients with colorectal cancer.

Individualized peri-operative fluid therapy facilitating early-phase recovery after liver transplantation

AIM:To investigate the correlation between peri-operative fluid therapy and early-phase recovery after liver transplantation(LT) by retrospectively reviewing 102 consecutive recipients.METHODS:Based on whether or not the patients had pulmonary complications,the patients were categorized into non-pulmonary and pulmonary groups.Twentyeight peri-operative variables were analyzed in both groups to screen for the factors related to the occurrence of early pulmonary complications.RESULTS:The starting hemoglobin(Hb) value,an intra-operative transfusion > 100 mL/kg,and a fluid balance ≤-14 mL/kg on the first day and the second or third day post-operatively were significant factors for early pulmonary complications.The extubation time,time to initial passage of flatus,or intensive care unit length of stay were significantly prolonged in patients who had not received an intra-operative transfusion ≤ 100 mL/kg or a fluid balance ≤-14 mL/kg on the first day and the second or the third day post-operatively.Moreover,these patients had poorer results in arterial blood gas analysis.CONCLUSION:It is important to offer a precise and individualized fluid therapy during the peri-operative period to the patients undergoing LT for cirrhosis-associated hepatocellular carcinoma.

Controversies in fluid therapy: Type, dose and toxicity

Fluid therapy is perhaps the most common intervention received by acutely ill hospitalized patients; however, a number of critical questions on the efficacy and safety of the type and dose remain. In this review, recent insights derived from randomized trials in terms of fluid type, dose and toxicity are discussed. We contend that the prescription of fluid therapy is context-specific and that any fluid can be harmful if administered inappropriately. When contrasting ‘‘crystalloid vs colloid'', differences in efficacy are modest but differences in safety are significant. Differences in chloride load and strong ion difference across solutions appear to be clinically important. Phases of fluid therapy in acutely ill patients are recognized, including acute resuscitation, maintaining homeostasis, and recovery phases. Quantitative toxicity(fluid overload) is associated with adverse outcomes and can be mitigated when fluid therapy basedon functional hemodynamic parameters that predict volume responsiveness and minimization of non-essential fluid. Qualitative toxicity(fluid type), in particular for iatrogenic acute kidney injury and metabolic acidosis, remain a concern for synthetic colloids and isotonic saline, respectively. Physiologically balanced crystalloids may be the ‘‘default'' fluid for acutely ill patients and the role for colloids, in particular hydroxyethyl starch, is increasingly unclear. We contend the prescription of fluid therapy is analogous to the prescription of any drug used in critically ill patients.

Relationship between endogenous digitalis－like factor and fluid therapy in burn－blast combined injury

Fifty dogs were inflicted with burn-blast combined injury and divided into 5 groups. All the experimental animals began to receive various amounts of fluid and sodium slat replacement 2 h after injury. Serum level of endogenous digitalis-like factor (EDLF

Prevention of hospital-acquired hypokalemia in children receiving maintenance fluid therapy

Objective: It has been suggested that the use of hypotonic intravenous fluid (IVF) puts hospitalized children at a greater risk of developing hyponatremia in children with increased arginine vasopressin (AVP) production. To reduce its risk, the National Patient Safety Agency in UK issued alert 22 in 2007, of which recommendations were to use isotonic solutions for these children at risk of hyponatremia, instead of the previously most commonly used IVF (0.18% saline/ 4% dextrose) for maintenance fluid therapy. Recent observations, however, revealed that hypokalemia are also common in hospitalized patients who do not receive potassium in their IVF. This study was conducted to validate the potassium added IVF for the prevention of hospital-acquired hypokalemia in maintenance fluid therapy. Design: For maintenance fluid therapy, a commercially available IVF solution in Japan named as Solita-T2R (Na 84 mmol/L, K 20 mmol/L, Cl 66 mmol/L, glucose 3.2%) was infused for 41 sick children with a median age of 3.01 years. Its composition is close equivalent to 0.45% saline/5% dextrose (Na 77 mmol/L, K 0 mmol/L, Cl 77 mmol/L, dextrose 5%) except K content. The patients in states of AVP excess were excluded from the analysis. Results: Median serum potassium value did not drop significantly at a median interval of 48 hours (before IVF: 4.30 mmol/L, after IVF: 4.10 mmol/L, p > 0.05), whereas median serum sodium level significantly increased from 136.0 mmol/L to 139.0 mmol/L (p < 0.001). Conclusion: Potassium added (20 mmol/L) IVF solution reduces the risk of developing “hospital-acquired hypokalemia” in children who are not in states of AVP excess in maintenance fluid therapy. It is worthwhile to study prospectively in a larger number of sick children.

Goal-directed fluid therapy in gastrointestinal cancer surgery:A prospective randomized study

Objective:To investigate the effects of perioperative goal-directed fluid therapy(GDFT)on intraoperative fluid balance,postoperative morbidity,and mortality.Methods:This is a prospective randomized study,and 90 patients who underwent elective open gastrointestinal cancer surgery between April 2017 and May 2018 were included.Patients were randomized into 2 groups that received liberal fluid therapy(the LFT group,n=45)and goal-directed fluid therapy(the GDFT group,n=45).Patients’Colorectal Physiologic and Operative Severity Score for the enUmeration of Mortality and Morbidity(CR-POSSUM)physiological score,Charlson Comorbidity Index(CCI),perioperative vasopressor and inotrope use,postoperative AKIN classification,postoperative intensive care unit(ICU)hospitalization,hospital stay,and 30-day mortality were recorded.Results:The volume of crystalloid used perioperatively and the total volume of fluid were significantly lower in the GDFT group compared to the LFT group(P<0.05).CR-POSSUM physiological score and CCI were significantly higher in the GDFT group(P<0.05).Although perioperative vasopressor and inotrope use was significantly higher in the GDFT group(P<0.05),postoperative acute kidney injury development was not affected.Postoperative mortality was determined to be similar in both groups(P>0.05).Conclusion:Although GDFT was demonstrated to be a good alternative method to LFT in open gastrointestinal cancer surgery,and it can prevent perioperative fluid overload,and the postoperative results are comparable in the two groups.

A retrospective study of fluid therapy for 100 patients of liver transplantation

Objective： To review the evolution of fluid therapy （IOFT） during liver transplantation （LTX） based on clinical experience in our institute over 7 years. Methods： All patient records （n= 130） of LTX from 1996 to 2003 were examined. After excluding patients with co-morbidities 100 cases were found suitable for IOFT analysis. All patients had undergone LTX and follow-up under the same surgical team. Based on IOFT records we tried to identify distinct patterns of practice evolving over 7 years. Intraoperarive hemodynamics （IOHD） and long-term outcome records were examined. Results： Retrospectively, 3 types of IOFT were found. Group A （n= 18, period 1996-1997） received high amounts of crystallolds; group B （n=24, period 1998-2000） received high amounts of plasma and albumin; and group C （n=58, period 2001-2003） received lower amounts of albumin and plasma and recommended amounts of 6% hydroxyethyl starch 200/0. 5 （HES） and high amounts of vasopressors, lntraoperatively, group A exhibited the highest levels of central venous and pulmonary artery pressures in the neo-hepatic stage （P〈0.05）. Postoperatively, the patients in group C had the shortest time to extubation ; the values for group A,B,C were （15.8±11）, （17.3±10.2） and （7.98±3.2） h respectively（P〈0.05）. At the end of one-year follow-up, the patients in group C had the lowest mortality （group A, B, C were 27. 78%, 29. 17% and 6.25% respectively; P〈0. 05）. Conclusion： In our institute over the years the use of crystalloids, albumin and plasma during IOFT of LTX is gradually replaced to a large extent by HES. The improvements in IOHD and long term outcomes are likely to be related to improved surgical experience of our team. Nevertheless, the shift in IOFT practices might be associated with an beneficial effect on IOHD or long term outcome. Treatment with proper amount of liquid and vasoactive drugs may be a better method of fluid thera- py.

Effect of Goal-Directed Fluid Therapy on Lung Function, Cognitive Function and Inflammatory Response in Patients Undergoing Radical Esophageal Cancer Surgery under One-Lung Ventilation

Objective: To explore the effects of goal-directed fluid therapy (GDFT) on lung function, cognitive function and inflammatory response in patients undergoing radical esophageal cancer surgery under one-lung ventilation. Methods: Sixty-seven patients undergoing radical esophageal cancer surgery were divided into GDFT group (GDFT therapy) and control group (conventional liquid therapy). The changes in patients’ pulmonary function, cognitive function and inflammatory response were evaluated. Results: Both alveolar-arterial oxygen partial pressure difference [P(A-a)O2] and respiratory index (RI) increased at one-lung ventilation for 30 minutes (T2) and decreased at one-lung ventilation for 60 minutes (T3), and after surgery (T4) in the two groups, and the GDFT group was lower than the control group (P < 0.05);theoxygenation index (OI) of the two groups decreased at T2, T3, and T4 compared with that at T1 (before one-lung ventilation), and the GDFT group was higher than the control group (P < 0.05). At T4 and T5, the tumor necrosis factor α (TNF-α), interleukin 6 (IL-6), central nervous system specific protein (S100β), and neuron specific enolase (NSE) in the GDFT group were lower compared to the control group (P < 0.05), while interleukin-10 (IL-10) was higher compared to the control group (P < 0.05);the incidence of perioperative neurocognitive disorder (PND) in the GDFT group was lower than that in the control group (P < 0.05). Conclusion: GDFT can help prevent lung injury during radical esophageal cancer surgery under one-lung ventilation, reduce the body’s inflammatory response, and reduce the incidence of perioperative cognitive disorder to a certain extent.

围术期目标导向液体治疗对老年胃癌根治术伴高血压患者血流动力学、术后恢复及并发症的影响

目的探讨围术期目标导向液体治疗(GDFT)对老年胃癌根治术伴高血压患者血流动力学、术后恢复及并发症的影响。方法选取88例老年胃癌根治术伴高血压患者作为研究对象,采用随机数字表法分为治疗组和对照组,每组44例。治疗组围术期采用GDFT,对照组围术期采用常规液体治疗。比较2组患者不同时点的平均动脉压、心率、中心静脉血氧饱和度(ScvO_(2)),以及术后排气时间、术后住院时间、术后并发症发生率。结果2组患者平均动脉压、心率、ScvO_(2)的时间效应(F=60.488、49.789、39.423)、组间效应(F=17.317、12.969、10.101)及交互效应(F=26.415、22.546、17.294)比较,差异均有统计学意义(P<0.05);术毕,治疗组的平均动脉压、心率、ScvO_(2)高于麻醉前,且高于对照组,差异有统计学意义(P<0.05)。治疗组术后排气时间、住院时间依次为(2.25±0.61)、(10.29±1.96)d,分别短于对照组的(2.82±0.71)、(12.36±2.29)d,差异有统计学意义(P<0.05)。治疗组术后并发症总发生率为11.36%,低于对照组的29.54%,差异有统计学意义(P<0.05)。结论将GDFT应用于老年胃癌根治术伴高血压患者围术期,可提供更稳定的血流动力学环境,改善组织灌注情况,加速术后康复进程,并减少术后并发症。

超声指导脓毒性休克液体复苏疗效的Meta分析

目的采用Meta分析比较超声指导液体复苏与早期目标导向治疗(EGDT)在脓毒性休克中的应用效果。方法通过计算机检索PubMed、Ovid、Scopus、Embase、Cochrane Library、Web of Science、中国知网(CNKI)、万方数据知识服务平台(WANFANG)、中国生物医学文献数据库(CBM)、维普中文科技期刊全文数据库(VIP)、中国临床实验数据中心和ClinicalTrials.gov,搜集从建库至2022年10月23日有关比较超声指导液体复苏和EGDT在脓毒性休克中应用效果的随机对照试验(RCT)。采用Review Manager5.3统计软件进行Meta分析。结果共纳入8篇文献,包括482例脓毒性休克患者,3篇文献风险偏移较低。Meta分析结果显示,两组的6、12、24 h乳酸清除率(LCR)、急性肾损伤(AKI)发生率、28 d病死率比较,差异无统计学意义(P>0.05);试验组的24 h复苏液体总量、24 h液体净平衡量低于对照组(P<0.00001);试验组的组织水肿发生率低于对照组(P=0.001);试验组的治疗6 h后每小时尿量多于对照组(P<0.00001);试验组的机械通气时间及ICU住院时间短于对照组,差异具有统计学意义(P=0.009、0.002)。结论超声指导脓毒性休克液体复苏可降低24 h复苏液体总量及组织水肿发生率,增加治疗6 h后每小时尿量,缩短机械通气时间及ICU住院时间。

中和思想指导下苇茎汤治疗胸腔积液临床观察

目的 在中和医派思想的指导下探讨苇茎汤治疗胸腔积液的临床疗效。方法 选取2022年1月—2023年1月收治的胸腔积液患者60例,随机分为观察组和试验组,每组30例。观察组采用常规西医治疗,试验组在常规西医治疗的同时,联合应用苇茎汤进行治疗,3个疗程后观察2组临床疗效并对患者肺功能进行评价。结果 治疗后,试验组FVC、FEV1、FEV1/FVC、PEER均高于观察组(P<0.05)。结论 苇茎汤能够提高胸腔积液患者的肺功能,改善肺循环及气道阻塞,提高重症患者治愈率及生活质量。

改良置换液配方在重症维持性血液透析患者日间间歇性连续性肾脏替代治疗中的应用效果

目的探讨改良置换液配方在重症持续性血液透析患者日间间歇性连续性肾脏替代治疗(CRRT)中的应用效果。方法选择南昌大学第一附属医院2022年7月至2023年7月收治的重症持续性血液透析患者30例为研究对象,所有患者均采用日间间歇性CRRT治疗,按随机数字表法分为对照组与观察组,每组15例。对照组使用原有配套置换液配方,观察组采用改良置换液配方。治疗3个月后比较2组肾功能及血糖、钾、钠、氯、钙、血气水平及不良事件发生率。结果观察组上机后尿素氮(BUN)、血肌酐(Scr)水平显著低于对照组(P<0.05),钾、钠、氯、钙水平显著高于对照组(P<0.05);观察组上机6 h、下机后pH值及HCO3-水平显著高于对照组(P<0.05)。2组干预过程中低血糖、感染、失衡综合征、低血压及造瘘口病变发生率比较差异无统计学意义(P>0.05)。结论改良置换液配方用于重症持续性血液透析患者日间间歇性CRRT,能提升患者肾功能,有助于改善血糖、钾、钠、氯、钙、血气水平,且不增加不良事件发生率。

采用自配碳酸氢盐置换液行CRRT治疗流行性出血热合并急性肾功能衰竭1例回顾性分析

目的总结1例流行性出血热(EHF)合并急性肾功能衰竭(ARF)患者采用自配碳酸氢盐置换液行连续性肾脏替代治疗(CRRT)的经验,以期为同类病例的治疗提供参考。方法对2021年4月兰州大学第一医院东岗院区综合内科收治的1例EHF合并ARF患者行内科综合治疗,同时采用自配碳酸氢盐置换液行CRRT,依据动态监测血气分析、电解质、肾功能及凝血指标水平调整自配置换液配方及抗凝剂剂量。结果患者住院治疗14 d出院,出院后30 d复查随访,各项指标均恢复正常。结论在内科综合治疗的同时及时采用自配碳酸氢盐置换液行CRRT是治疗EHF合并ARF的有效方法。

下腔静脉变异度联合SVV指导下的目标导向液体治疗在腹腔镜肠癌根治术麻醉管理中的应用

目的 探讨下腔静脉变异度联合每搏量变异度(SVV)指导下的目标导向液体治疗在腹腔镜肠癌根治术患者麻醉管理中的应用效果。方法 选取2021年7月至2022年6月择期行腹腔镜下肠癌根治术患者60例,按照不同目标导向液体治疗分为常规补液组(对照组)和SVV组(观察组)各30例。比较两组术中液体出入量、不同时间点血流动力学和视神经鞘直径(ONSD)、术前及术后实验室指标水平[C反应蛋白(CRP)、下腔静脉变异度、纤维蛋白原(FIB)、血浆血栓素B2(TXB2)],术前及术后1、3 d认知功能。结果 观察组总入量、胶体量低于对照组(P<0.05),两组晶体量比较差异无统计学意义(P>0.05)。两组部分时间点血流动力学和ONSD差异有统计学意义(P<0.05)。术前和术后1 d实验室指标水平差异有统计学意义,且观察组CRP、FIB水平低于对照组,下腔静脉变异度高于对照组(P<0.05)。术前及术后3 d,两组认知功能差异无统计学意义(P>0.05),术后1 d观察组认知功能评分高于对照组(P<0.05)。结论 下腔静脉变异度联合SVV指导下的目标导向液体治疗应用于腹腔镜肠癌根治术患者麻醉管理中,能够优化术中液体管理,减少外科应激,维持患者内环境稳定,降低术后短期认知功能损害程度,于患者术后康复有益。

PPV和PVI在胃肠肿瘤手术目标导向液体治疗中的疗效对比研究

目的比较脉压变异率(Pulse pressure variation,PPV)与脉搏灌注变异指数(Pleth variability index,PVI)在胃肠肿瘤手术目标导向液体治疗(Goal-directedfluidtherapy,GDFT)中的疗效。方法选取2021年9月-2024年2月在延安市人民医院麻醉科全麻下行腹腔镜胃肠道肿瘤手术的患者106例,采用随机数字表法分为PPV组(n=53)和PVI组(n=53)。两组患者术中背景输液情况为复方氯化钠3 mL·kg^(-1)·h^(-1)。PPV组若PPV≥11%持续1 min,则按照15 mL·kg^(-1)·h^(-1)的速度输注晶体液,若超过15 min则继续胶体液输注,直到PPV<11%持续1 min,恢复背景输液速度。PVI组若PVI≥11%持续1 min,则按照15 mL·kg^(-1)·h^(-1)的速度输注晶体液,若超过15 min则继续胶体液输注,直到PPV<11%持续1 min,恢复背景输液速度。记录患者术中低血压时间加权平均值(Time weighted average of Hypotension,TWAH)、输液情况、尿量;记录患者术毕24 h QoR-15评分、恶心呕吐发生率、肾功能以及肠道排气时间,测定术毕24、48 h患者血清肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)、IL-10的水平。结果与PPV组相比,PVI组术中总输液量、晶体输注量、尿量,术毕24 h和48 h血清IL-6水平更低,差异有统计学意义(P<0.05);两组低血压时间加权平均值、胶体输注量、术毕24 h肾功能、恶心呕吐发生率、肠道排气时间差异均无统计学差异(P>0.05)。结论在腹腔镜胃肠道肿瘤手术中,基于PVI的GDFT并不劣于PPV作为目标的GDFT,该方法无创、简便,值得在临床推广应用。