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Immediate vs. gradual advancement to goal of enteral nutrition after elective abdominal surgery: A multicenter non-inferiority randomized trial.
Zhang, L, Liu, Y, Gao, X, Zhou, D, Zhang, Y, Tian, F, Gao, T, Wang, Y, Chen, Z, Lian, B, et al
Clinical nutrition (Edinburgh, Scotland). 2021;(12):5802-5811
Abstract
BACKGROUND & AIMS The strategy of increasing the postoperative enteral nutrition dose to the target goal has not yet been clarified. This study aimed to determine whether an immediate goal-dose enteral nutrition (IGEN) strategy is non-inferior to a gradual goal-dose enteral nutrition (GGEN) strategy in reducing infections in patients undergoing abdominal surgery involving the organs of the digestive system. METHODS This randomized controlled trial enrolled postoperative patients with nutritional risk screening 2002 scores ≥3 from 11 Chinese hospitals. Energy targets were calculated as 25 kcal/kg and 30 kcal/kg of ideal body weight for women and men, respectively. Patients were randomly assigned 1:1 to IGEN or GGEN group after enteral tolerance was confirmed (30% of the target on day 2). The IGEN group immediately started receiving 100% of the caloric requirements on day 3, while the GGEN group received 40% progressing to 80% of target on day 7. The primary endpoint was the infection rate until discharge, based on the intention-to-treat population. RESULTS A total of 411 patients were enrolled and randomized to the IGEN and GGEN groups, and five patients did not receive the allocated intervention. A total of 406 patients were included in the primary analysis, with 199 and 207 in the IGEN and GGEN groups, respectively. Infection was observed in 17/199 (8.5%) in the IGEN group and 19/207 (9.2%) in the GGEN group, respectively (difference, -0.6%; [95% confidence interval (CI), -6.2%-4.9%]; P = 0.009 for non-inferiority test). There were significantly more gastrointestinal intolerance events with IGEN than with GGEN (58/199 [29.1%] vs. 32/207 [15.5%], P < 0.001). All other secondary endpoints were non-significant. CONCLUSIONS Among postoperative patients at nutritional risk, IGEN was non-inferior to GGEN in regards to infectious complications. IGEN was associated with more gastrointestinal intolerance events. It showed that IGEN cannot be considered to be clinically directive. ClinicalTrials.gov (#NCT03117348).
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Calcium-Induced Autonomic Denervation in Patients With Post-Operative Atrial Fibrillation.
Wang, H, Zhang, Y, Xin, F, Jiang, H, Tao, D, Jin, Y, He, Y, Wang, Q, Po, SS
Journal of the American College of Cardiology. 2021;(1):57-67
Abstract
BACKGROUND Post-operative atrial fibrillation (POAF) is associated with worse long-term cardiovascular outcomes. OBJECTIVES This study hypothesized that injecting calcium chloride (CaCl2) into the major atrial ganglionated plexi (GPs) during isolated coronary artery bypass grafting (CABG) can reduce the incidence of POAF by calcium-induced autonomic neurotoxicity. METHODS This proof-of-concept study randomized 200 patients undergoing isolated, off-pump CABG to CaCl2 (n = 100) or sodium chloride (sham, n = 100) injection. Two milliliters of CaCl2 (5%) or sodium chloride (0.9%) was injected into the 4 major atrial GPs during CABG. All patients received 7-day continuous telemetry and Holter monitoring. The primary outcome was incidence of POAF (≥30 s) in 7 days. Secondary outcomes included length of hospitalization, POAF burden, average ventricular rate during AF, plasma level of inflammatory markers, and actionable antiarrhythmic therapy to treat POAF. RESULTS The POAF incidence was reduced from 36% to 15% (hazard ratio: 0.366; 95% confidence interval: 0.211 to 0.635; p = 0.001). Length of hospitalization did not differ between the 2 groups. POAF burden (first 7 post-operative days), the use of amiodarone or esmolol, and the incidence of atrial couplets and nonsustained atrial tachyarrhythmias were significantly reduced in the CaCl2 group. Heart rate variability data showed a decrease in both high-frequency and low-frequency power in the CaCl2 group with a preserved low-frequency/high-frequency ratio, suggesting that the sympathetic/parasympathetic balance was not perturbed by CaCl2 injection. CONCLUSIONS Injection of CaCl2 into the 4 major atrial GPs reduced the POAF hazard by 63%. Inhibition of GP function by Ca-mediated neurotoxicity may underlie the therapeutic effect. (Calcium Autonomic Denervation Prevents Postoperative Atrial Fibrillation; ChiCTR1800019276).
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Postoperative prophylaxis of venous thromboembolism (VTE) in patients undergoing high ligation and stripping of the great saphenous vein (GSV).
Wang, H, Sun, Z, Jiang, W, Zhang, Y, Li, X, Wu, Y
Vascular medicine (London, England). 2015;(2):117-21
Abstract
To analyze the necessity of venous thromboembolism (VTE) prophylaxis for patients undergoing high ligation and stripping of the great saphenous vein (GSV) and to estimate the efficacy and safety of different anticoagulant protocols in a single-center randomized controlled trial with large sample size. A total of 2196 patients undergoing high ligation and stripping of the GSV were randomized to one of the following postoperative VTE prophylaxis protocols: group A, no VTE prophylaxis (n=542); group B, subcutaneous low-dose unfractionated heparin (LDUH) hypodermic injection, 125 U/kg per day in three divided doses (n=531); group C, low-molecular-weight heparin (LMWH) 6000 IU once a day (n=573); and group D, LMWH 4000 IU twice daily (n=550). Groups were compared for the incidence of VTE and major hemorrhage within 1 month following surgery. Varicose vein severity was classified by CEAP (Clinical, Etiologic, Anatomic, Pathophysiologic elements) score. The clinical characteristics of the patients were equally matched between groups. Postoperative deep vein thrombosis (DVT) and pulmonary embolism (PE) were significantly higher in group A (DVT 5.17%, PE 1.48%) compared to groups B (0.56%, 0%), C (0.35%, 0%) and D (0.36%, 0%) (p<0.01). The incidence of VTE did not differ between the three active chemoprophylaxis arms. Hemorrhagic complications were low for each group but higher in group B (0.75%) compared to the other groups (group A 0.18%; group C 0.17%; group D 0.18%, p<0.01). Hemorrhagic complications did not differ amongst groups A, C and D. In conclusion, postoperative VTE chemoprophylaxis following high ligation and GSV stripping effectively reduces the venous thrombosis complications of this procedure. Of the three active strategies tested, no difference in efficacy was noted; however, thrice daily LDUH did increase bleeding complications.
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The effects of comprehensive mental intervention on the recovery time of patients with postsurgical gastroparesis syndrome.
Liu, Y, Song, X, Zhang, Y, Zhou, L, Ni, R
Journal of clinical nursing. 2014;(21-22):3138-47
Abstract
AIMS AND OBJECTIVES To explore the effects of comprehensive mental intervention on the recovery time and symptoms of depression in patients with postsurgical gastroparesis syndrome. BACKGROUND Postsurgical gastroparesis syndrome may occur after abdominal surgery. The development of postsurgical gastroparesis syndrome is believed to be influenced by neuropsychiatric factors, manifest as psychological dysfunction and distress. DESIGN Randomised controlled trial. METHODS A total of 120 patients with postsurgical gastroparesis syndrome were randomly divided into a mental intervention group (n = 60) and a control group (n = 60) by odd or even numbers. The mental intervention group received comprehensive mental intervention including support, counselling, music and massage plus all aspects of conventional therapy. The control group received only conventional therapy, including a three-cavity gastric tube, fasting, parenteral/enteral nutrition, routine care and health guidance. Pre intervention and postintervention depression levels were assessed in both groups by the Center for Epidemiological Survey Depression Scale. Gastric function recovery was assessed in all patients. RESULTS Postintervention depression scores were significantly reduced in the mental intervention group, and pre-/postdifferences were significantly greater compared to control group scores. The mental intervention group had significantly shorter times for symptom disappearance (nausea, vomiting, abdominal distention), extubation duration, eating recovery, gastric drainage volume >600 ml/day, gastroparesis recovery, as well as shorter hospital stays and lower hospital expenses. CONCLUSIONS Comprehensive mental intervention improved negative emotions and depression and shortened recovery time of patients with postsurgical gastroparesis syndrome. RELEVANCE TO CLINICAL PRACTICE Mental intervention is important to postsurgical recovery, and primary nurses are encouraged to understand how to care for postsurgical patients physically and psychologically, with at least one nurse in the postsurgical setting trained to provide mental intervention.