Impact of dexmedetomidine-assisted anesthesia in elderly patients undergoing radical resection of colon cancer

BACKGROUND Radical resection of colon cancer under general anesthesia is one of the main treatment methods for this malignancy.However,due to the physiological charac-teristics of elderly patients,the safety of perioperative anesthesia needs special attention.As anα2-adrenergic receptor agonist,dexmedetomidine(Dex)has attracted much attention from anesthesiologists due to its stabilizing effect on heart rate and blood pressure,inhibitory effect on inflammation,and sedative and analgesic effects.Its application in general anesthesia may have a positive impact on the quality of anesthesia and postoperative recovery in elderly patients undergoing radical resection of colon cancer.METHODS A total of 165 colon cancer patients who underwent radical surgery for colon cancer under general anesthesia at Qingdao University Affiliated Haici Hospital,Qingdao,China were recruited and divided into two groups:A and B.In group A,Dex was administered 30 min before surgery,while group B received an equivalent amount of normal saline.The hemodynamic changes,pulmonary compliance,airway pressure,inflammatory factors,confusion assessment method scores,Ramsay Sedation-Agitation Scale scores,and cellular immune function indicators were compared between the two groups.RESULTS Group A showed less intraoperative hemodynamic fluctuations,better pulmonary compliance,and lower airway resistance compared with group B.Twelve hours after the surgery,the serum levels of TLR-2,TLR-4,IL-6,and TNF-αin group A were significantly lower than those of group B(P<0.05).After extubation,the Ramsay Sedation-Agitation Scale score of group A patients was significantly higher than that of group B patients,indicating a higher level of sedation.The incidence of delirium was significantly lower in group A than in group B(P<0.05).CONCLUSION The use of Dex as an adjunct to general anesthesia for radical surgery in elderly patients with colon cancer results in better effectiveness of anesthesia.

Influencing factors and risk prediction model for emergence agitation after general anesthesia for primary liver cancer

BACKGROUND General anesthesia is commonly used in the surgical management of gastrointestinal tumors;however,it can lead to emergence agitation(EA).EA is a common complication associated with general anesthesia,often characterized by behaviors,such as crying,struggling,and involuntary limb movements in patients.If treatment is delayed,there is a risk of incision cracking and bleeding,which can significantly affect surgical outcomes.Therefore,having a proper understanding of the factors influencing the occurrence of EA and implementing early preventive measures may reduce the incidence of agitation during the recovery phase from general anesthesia,which is beneficial for improving patient prognosis.AIM To analyze influencing factors and develop a risk prediction model for EA occurrence following general anesthesia for primary liver cancer.METHODS Retrospective analysis of clinical data from 200 patients who underwent hepatoma resection under general anesthesia at Wenzhou Central Hospital(January 2020 to December 2023)was conducted.Post-surgery,the Richmond Agitation-Sedation Scale was used to evaluate EA presence,noting EA incidence after general anesthesia.Patients were categorized by EA presence postoperatively,and the influencing factors were analyzed using logistic regression.A nomogram-based risk prediction model was constructed and evaluated for differentiation and fit using receiver operating characteristics and calibration curves.RESULTS EA occurred in 51(25.5%)patients.Multivariate analysis identified advanced age,American Society of Anesthesiologists(ASA)grade Ⅲ,indwelling catheter use,and postoperative pain as risk factors for EA(P<0.05).Conversely,postoperative analgesia was a protective factor against EA(P<0.05).The area under the curve of the nomogram was 0.972[95%confidence interval(CI):0.947-0.997]for the training set and 0.979(95%CI:0.951-1.000)for the test set.Hosmer-Lemeshow test showed a good fit(χ^(2)=5.483,P=0.705),and calibration curves showed agreement between predicted and actual EA incidence.CONCLUSION Age,ASA grade,catheter use,postoperative pain,and analgesia significantly influence EA occurrence.A nomogram constructed using these factors demonstrates strong predictive accuracy.

Effect of general anesthesia on hemorrheology,hemodynamics and levels of blood E,NE and COS in patients undergoing gynecological surgery

Objective: To investigate the influence of general anesthesia on hemorheology, hemodynamics and blood E, NE and COS levels in patients undergoing gynecological surgery. Methods: A total of 87 cases of gynecologic laparoscopic surgery in our hospital from November 2015 to June 2017 were selected as subjects,all patients underwent general anesthesia for surgery, at the time of T1, T2, T3,the index of EDI, ηP, whole blood viscosity of blood rheology (high, middle and low shear), hemodynamic indexes of HR, BP, E, NE, SPO2 and serum COS level were measured. Results: (1) Compared with T1, 87 patients' HSV, MSV, LSV, ηP, EAI levels were significantly lower in T2 and T3, the difference was statistically significant, but there was no significant changes in the EDI three times;(2) Compared with T1, the levels of HR, SBP and DBP in 87 patients were significantly increased at T2 and T3, the difference was statistically significant, while the change of SPO2 levels at three moments was not statistically significant;(3) Compared with T1, the blood E, NE and COS levels in 87 patients increased significantly at T2 and T3, and the difference was statistically significant. Conclusion:Application of general anesthesia in gynecological surgery, can significantly reduce the blood viscosity of patients, but will increase the heart rate and blood pressure and blood E, NE and COS levels, therefore, during the operation, the patient's signs should be monitored comprehensively and closely.

Nutritional status efficacy of early nutritional support in gastrointestinal care: A systematic review and meta-analysis

BACKGROUND Gastrointestinal surgery is a complicated process used to treat many gastrointestinal diseases,and it is associated with a large trauma:Most patients often have different degrees of malnutrition and immune dysfunction before surgery and are prone to various infectious complications during postoperative recovery,thus affecting the efficacy of surgical treatment.Therefore,early postoperative nutritional support can provide essential nutritional supply,restore the intestinal barrier and reduce complication occurrence.However,different studies have shown different conclusions.AIM To assess whether early postoperative nutritional support can improve the nutritional status of patients based on literature search and meta-analysis.METHODS Articles comparing the effect of early nutritional support and delayed nutritional support were retrieved from PubMed,EMBASE,Springer Link,Ovid,China National Knowledge Infrastructure,China Biology Medicine databases.Notably,only randomized controlled trial articles were retrieved from the databases(from establishment date to October 2022).The risk of bias of the included articles was determined using Cochrane Risk of Bias V2.0.The outcome indicators,such as albumin,prealbumin,and total protein,after statistical intervention were combined.RESULTS Fourteen literatures with 2145 adult patients undergoing gastrointestinal surgery(1138 patients(53.1%)receiving early postoperative nutritional support and 1007 patients(46.9%)receiving traditional nutritional support or delayed nutritional support)were included in this study.Seven of the 14 studies assessed early enteral nutrition while the other seven studies assessed early oral feeding.Furthermore,six literatures had"some risk of bias,"and eight literatures had"low risk".The overall quality of the included studies was good.Meta-analysis showed that patients receiving early nutritional support had slightly higher serum albumin levels,than patients receiving delayed nutritional support[MD(mean difference)=3.51,95%CI:-0.05 to 7.07,Z=1.93,P=0.05].Also,patients receiving early nutritional support had shorter hospital stay(MD=-2.29,95%CI:-2.89 to-1.69),Z=-7.46,P<0.0001)shorter first defecation time(MD=-1.00,95%CI:-1.37 to-0.64),Z=-5.42,P<0.0001),and fewer complications(Odd ratio=0.61,95%CI:0.50 to 0.76,Z=-4.52,P<0.0001)than patients receiving delayed nutritional support.CONCLUSION Early enteral nutritional support can slightly shorten the defecation time and overall hospital stay,reduce complication incidence,and accelerate the rehabilitation process of patients undergoing gastrointestinal surgery.

Apolipoprotein E polymorphism influences orthotopic liver transplantation outcomes in patients with hepatitis C virus-induced liver cirrhosis

BACKGROUND Hepatitis C virus(HCV)infection is responsible for a chronic liver inflammation,which may cause end-stage liver disease and hepatocellular carcinoma.Apolipoprotein E(protein:ApoE,gene:APOE),a key player in cholesterol metabolism,is mainly synthesized in the liver and APOE polymorphisms may influence HCV-induced liver damage.AIM To determine whether APOE alleles affect outcomes in HCV-infected patients with liver cirrhosis following orthotopic liver transplantation(OLT).METHODS This was a cohort study in which 179 patients,both genders and aged 34-70 years,were included before or after(up to 10 years follow-up)OLT.Liver injury severity was assessed using different criteria,including METAVIR and models for endstage liver disease.APOE polymorphisms were analyzed by quantitative real-time polymerase chain reaction.RESULTS The APOE3 allele was the most common(67.3%).In inflammation severity of biopsies from 89 OLT explants and 2 patients in pre-transplant,the degree of severe inflammation(A3F4,0.0%)was significantly less frequent than in patients with minimal and moderate degree of inflammation(≤A2F4,16.2%)P=0.048,in patients carrying the APOE4 allele when compared to non-APOE4.In addition,a significant difference was also found(≤A2F4,64.4%vs A3F4,0.0%;P=0.043)and(A1F4,57.4%vs A3F4,0.0%;P=0.024)in APOE4 patients when compared to APOE3 carriers.The fibrosis degree of the liver graft in 8 of 91 patients and the lack of the E4 allele was associated with more moderate fibrosis(F2)(P=0.006).CONCLUSION Our results suggest that the E4 allele protects against progression of liver fibrosis and degree of inflammation in HCV-infected patients.

Influence of buccal acupuncture on analgesic effect,immune indicators,and expression of Survivin and Livin proteins in patients with advanced-stage primary liver cancer

Objective To investigate the effects of buccal acupuncture on analgesia,immune indicators,and expression levels of Survivin and Livin proteins in patients with advanced-stage primary liver cancer.Methods Eighty patients with advanced-stage primary liver cancer were selected and divided into control and treatment groups according to the difference in treatment modalities,with 40 patients in each group.The control group received transcatheter arterial chemoembolization(TACE),and the treatment group received buccal acupuncture in addition to TACE.The recent efficacy,analgesic effect,liver function,serum tumor markers,Survivin and Livin protein expression levels in liver cancer tissue,and immune indexes were analyzed and compared between the two groups.Results The objective response rate(ORR)and disease control rate(DCR)of the treatment group were 37.5%and 77.5%,respectively,which were significantly higher than those of the control group(22.5%and 52.5%),and the recent efficacy of the treatment group was significantly better than that of the control group(P<0.05).The onset of analgesia in the treatment group was significantly faster than that in the control group(P<0.05),the duration of analgesia was significantly longer than that in the control group(P<0.05),and the numeric rating scale(NRS)score of pain after treatment was significantly lower than that in the control group(P<0.05).In the treatment group,the aspartate aminotransferase(AST),alanine aminotransferase(ALT),and albumin/globulin(A/G)were significantly lower than those in the control group(P<0.05),and the serum levels of alpha-fetoprotein(AFP),alpha-L-fucosidase(AFU),and carcinoembryonic antigen(CEA)were significantly lower than those in the control group(P<0.05),and the expression levels of Survivin and Livin in liver cancer tissue were significantly lower than those in the control group(P<0.05);CD4^(+)and CD4^(+)/CD8+in the treatment group were significantly higher than those in the control group,and CD8+was significantly lower than that in the control group after treatment(P<0.05).Conclusion Buccal acupuncture can reduce the degree of pain and liver function damage in patients with advanced-stage primary liver cancer and lower the serum tumor marker levels,and its mechanism of action may be related to the down-regulation of Survivin and Livin protein expression levels in the liver cancer tissue and the regulation of the immune function.

无阿片类药物应用时手术中输注艾司洛尔可以减少门诊腹腔镜胆囊切除术后芬太尼的用量

背景门诊手术患者使用阿片类药物可以延迟出院时间或导致意外入院。对手术中持续输注艾司洛尔替代阿片类药物能否减少手术后阿片类药物用量效应的报道结论不一。本研究比较了手术中持续输注艾司洛尔、间断输注芬太尼或连续输注瑞芬太尼的手术后阿片类药物的用量、副作用及患者的出院时间。方法90例患者分3组，进行前瞻性、随机双盲研究。对照组（n=30），手术中间断输注芬太尼；艾司洛尔组（聍=30），手术中持续输注艾司洛尔（5～15μg·kg～min^-1），不补充阿片类药物；瑞芬太尼组（n=30），持续输注瑞芬太尼（0．1-0．5μg·kg^-1·min^-1）。标准化全身麻醉，辅助药物包括：对乙酰氨基酚、酮洛酸、切皮时使用局麻药、地塞米松和氟哌利多。手术后使用芬太尼镇痛。结果手术后在麻醉恢复室，艾司洛尔组与其他2组相比，芬太尼的用量明显减少，为91．5±42．7μg；瑞芬太尼组为237．8±54．7μg，对照组为168．1±96．8μg（P〈0．0001）。与艾司洛尔组（30％）相比，瑞芬太尼组（67．9％）和对照组（66．7％）手术后恶心的发生率更高（P〈0．01）。手术后White-Song评分，艾司洛尔组到达12～14的速度比瑞芬太尼组更快（P〈0．01），出院时间早45-60分钟（P〈0．004）。结论手术中持续输注艾司洛尔能显著减少手术后芬太尼和昂丹司琼的用量，有利于患者及早出院。