Dataset Information

Use of Acetylcholinesterase Inhibitors in Reducing Time to Gastrointestinal Function Recovery following Abdominal Surgery: A Systematic Review.

ABSTRACT:

Introduction

Postoperative ileus (POI) is a significant complication following abdominal surgery, increasing morbidity and mortality. The cholinergic anti-inflammatory response is one of the major pathways involved in developing POI, but current recommendations to prevent POI do not target this. This review aims to summarise evidence for the use of acetylcholinesterase inhibitors, neostigmine and pyridostigmine, to reduce the time to return of gastrointestinal function (GI) following abdominal surgery.

Methods

A systematic search of various databases was performed from 1946 to May 2023. Randomised controlled trials (RCTs) on acetylcholinesterase inhibitors in intra-abdominal surgery were included. Data on time to flatus and/or stool and side effects were extracted.

Results

Among 776 screened manuscripts, 8 RCTs (703 patients) investigating acetylcholinesterase inhibitors in intra-abdominal surgery were analysed. Five studies showed a significant reduction in time to flatus and/or stool by 17-47.6 h. Methodological variations, differing procedure types, and potential bias were observed. Limited studies reported side effects or length of stay.

Conclusion

Acetylcholinesterase inhibitors may reduce the time for GI to return. However, current evidence is limited and biased. Further studies incorporating acetylcholinesterase inhibitors in an enhanced recovery protocol are required to address this question, especially for patients undergoing colorectal surgery.

SUBMITTER: Traeger L

PROVIDER: S-EPMC10946644 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature

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Publications

Use of Acetylcholinesterase Inhibitors in Reducing Time to Gastrointestinal Function Recovery following Abdominal Surgery: A Systematic Review.

Traeger Luke L Dudi-Venkata Nagendra N Bedrikovetski Sergei S Kroon Hidde M HM Moore James W JW Sammour Tarik T

Digestive surgery 20231213 1

<h4>Introduction</h4>Postoperative ileus (POI) is a significant complication following abdominal surgery, increasing morbidity and mortality. The cholinergic anti-inflammatory response is one of the major pathways involved in developing POI, but current recommendations to prevent POI do not target this. This review aims to summarise evidence for the use of acetylcholinesterase inhibitors, neostigmine and pyridostigmine, to reduce the time to return of gastrointestinal function (GI) following abd ...[more]

PMID: 38091957

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Project description:ImportancePostoperative ileus is common after abdominal surgery, and small clinical studies have reported that intraoperative administration of dexmedetomidine may be associated with improvements in postoperative gastrointestinal function. However, findings have been inconsistent and study samples have been small. Further examination of the effects of intraoperative dexmedetomidine on postoperative gastrointestinal function is needed.ObjectiveTo evaluate the effects of intraoperative intravenous dexmedetomidine vs placebo on postoperative gastrointestinal function among older patients undergoing abdominal surgery.Design, setting, and participantsThis multicenter, double-blind, placebo-controlled randomized clinical trial was conducted at the First Affiliated Hospital of Anhui Medical University in Hefei, China (lead site), and 12 other tertiary hospitals in Anhui Province, China. A total of 808 participants aged 60 years or older who were scheduled to receive abdominal surgery with an expected surgical duration of 1 to 6 hours were enrolled. The study was conducted from August 21, 2018, to December 9, 2019.InterventionsDexmedetomidine infusion (a loading dose of 0.5 μg/kg over 15 minutes followed by a maintenance dose of 0.2 μg/kg per hour) or placebo infusion (normal saline) during surgery.Main outcomes and measuresThe primary outcome was time to first flatus. Secondary outcomes were postoperative gastrointestinal function measured by the I-FEED (intake, feeling nauseated, emesis, physical examination, and duration of symptoms) scoring system, time to first feces, time to first oral feeding, incidence of delirium, pain scores, sleep quality, postoperative nausea and vomiting, hospital costs, and hospital length of stay.ResultsAmong 808 patients enrolled, 404 were randomized to receive intraoperative dexmedetomidine, and 404 were randomized to receive placebo. In total, 133 patients (60 in the dexmedetomidine group and 73 in the placebo group) were excluded because of protocol deviations, and 675 patients (344 in the dexmedetomidine group and 331 in the placebo group; mean [SD] age, 70.2 [6.1] years; 445 men [65.9%]) were included in the per-protocol analysis. The dexmedetomidine group had a significantly shorter time to first flatus (median, 65 hours [IQR, 48-78 hours] vs 78 hours [62-93 hours], respectively; P < .001), time to first feces (median, 85 hours [IQR, 68-115 hours] vs 98 hours [IQR, 74-121 hours]; P = .001), and hospital length of stay (median, 13 days [IQR, 10-17 days] vs 15 days [IQR, 11-18 days]; P = .005) than the control group. Postoperative gastrointestinal function (as measured by the I-FEED score) and delirium incidence were similar in the dexmedetomidine and control groups (eg, 248 patients [72.1%] vs 254 patients [76.7%], respectively, had I-FEED scores indicating normal postoperative gastrointestinal function; 18 patients [5.2%] vs 12 patients [3.6%] had delirium on postoperative day 3).Conclusions and relevanceIn this randomized clinical trial, the administration of intraoperative dexmedetomidine reduced the time to first flatus, time to first feces, and length of stay after abdominal surgery. These results suggest that this therapy may be a viable strategy to enhance postoperative recovery of gastrointestinal function among older adults.Trial registrationChinese Clinical Trial Registry Identifier: ChiCTR1800017232.

Project description:ImportancePostoperative recovery is difficult to define or measure. Research addressing interventions aimed to improve recovery after abdominal surgery often focuses on measures such as duration of hospital stay and complication rates. Although these clinical parameters are relevant, understanding patients' perspectives regarding postoperative recovery is fundamental to guiding patient-centered care.ObjectiveTo elucidate the meaning of recovery from the perspective of patients undergoing abdominal surgery.Design, setting, and participantsThis international qualitative study involved semistructured interviews with patients recovering from abdominal surgery from October 2016 to November 2018 in tertiary hospitals in 4 countries (Canada, Italy, Brazil, and Japan). A purposive maximal variation sampling method was used to ensure the recruitment of patients with varying demographic, clinical, and surgical characteristics. Data on race were not collected. Each interview lasted between 1 and 2 hours. Interviews were recorded and then transcribed verbatim. Transcripts were then analyzed using an inductive thematic analysis approach. Data analysis was conducted from July 2019 to September 2019.Main outcomes and measuresThe qualitative analysis revealed themes reflecting the meaning of recovery from the perspective of patients undergoing abdominal surgery.ResultsThirty patients recovering from abdominal surgery were interviewed (15 [50%] female; mean [SD] age, 57 [18] years; 10 [33%] underwent major surgery; 16 [53%] underwent laparoscopic surgery). The interviews revealed that for patients undergoing abdominal surgery, the meaning of recovery embodied 5 overarching themes: (1) returning to habits and routines, (2) resolution of symptoms, (3) overcoming mental strains, (4) regaining independence, and (5) enjoying life. Themes associating the meaning of recovery to traditional parameters, such as earlier hospital discharge or absence of complications, were not identified in the interviews.Conclusions and relevanceThis qualitative study suggests that the meaning of recovery from the perspective of patients undergoing abdominal surgery goes beyond traditional clinical parameters. The elements of recovery identified in this study should be taken into account in patient-surgeon discussions about recovery and when developing patient-centered strategies to improve postoperative outcomes.

Dataset Information

Use of Acetylcholinesterase Inhibitors in Reducing Time to Gastrointestinal Function Recovery following Abdominal Surgery: A Systematic Review.

Introduction

Methods

Results

Conclusion

Publications

Use of Acetylcholinesterase Inhibitors in Reducing Time to Gastrointestinal Function Recovery following Abdominal Surgery: A Systematic Review.

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