This study is a clinical research project conducted at Xijing Hospital to compare the effects of two different neuromuscular blockade reversal strategies on the recovery of gastrointestinal (GI) function after colorectal surgery. Many patients experience slow recovery of bowel function after colorectal surgery, which can lead to discomfort, nausea, vomiting, and a longer hospital stay. This study investigates whether using one medication (sugammadex) to reverse muscle relaxants used during anesthesia leads to better and faster recovery of gastrointestinal function compared to a traditional combination of medications (neostigmine with atropine). The study will include 560 adults scheduled for elective colorectal surgery. Participants will be randomly assigned to one of two groups to receive either: Sugammadex (2 mg/kg), OR Neostigmine (30 μg/kg) + Atropine (15 μg/kg) The assigned study drug will be given by intravenous injection at the end of surgery, once measurements show the muscle relaxant is starting to wear off. The patients, surgeons, outcome assessors, and statisticians will be blinded. The main goal is to see if more patients in one group recover their gastrointestinal function within 72 hours after surgery. Gastrointestinal recovery is strictly defined as both being able to tolerate food/drinks without significant nausea/vomiting AND having passed gas or had a bowel movement. The study will also compare many other important outcomes between the groups, including: 1. Time to first passage of gas, first bowel movement, and first toleration of food. 2. Pain scores and opioid pain medication use. 3. Rates of nausea and vomiting. 4. Overall quality of recovery and patient satisfaction. 5. Length of hospital stay and total hospitalization costs. 6. Occurrence of complications within 30 days after surgery. 7. The safety of both reversal strategies will be closely monitored throughout the study by recording any adverse events. This research aims to provide high-quality evidence to help anesthesiologists and surgeons choose the best method to reverse muscle relaxation, potentially leading to faster recovery, fewer complications, and a better overall experience for patients undergoing colorectal surgery.
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The proportion of patients recovering gastrointestinal function within 72 hours after surgery (assessed using the GI-3 criterion).
Timeframe: up to 72 hours after surgery