Oral Lactulose for Postoperative Gastrointestinal Recovery After Complex Appendectomy: A Prospective Triple-Blind Placebo-Controlled Single-Center Randomized Trial
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 150
- 试验地点
- 1
研究概览
简要总结
This is a prospective, triple-blind, placebo-controlled, single-center randomized clinical trial to evaluate the efficacy and safety of early oral lactulose for promoting postoperative gastrointestinal functional recovery in patients undergoing appendectomy for complicated appendicitis. Eligible patients aged ≥18 years with complicated appendicitis confirmed by preoperative SAS 2.0 score, intraoperative findings, or postoperative pathology will be randomly assigned 1:1 to receive oral lactulose or placebo on postoperative day 1 and day 2. The primary outcome is time to GI-2 (time from surgery to the later of first defecation or first tolerance of solid food). Secondary outcomes include time to first flatus, defecation rate within 72 hours, postoperative nausea and vomiting, length of hospital stay, medical costs, postoperative complications, and lactulose-related adverse events. A total of 150 patients will be enrolled. This study aims to provide high-level evidence for optimizing postoperative management in patients with complicated appendicitis.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Triple (Participant, Care Provider, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •1.Age ≥18 years.2.Complicated appendicitis confirmed by SAS2.0 score, intraoperative findings, or pathology.3.Undergoing appendectomy (open or laparoscopic).4.Able to provide informed consent and comply with follow-up.
排除标准
- •1.Preoperative intestinal obstruction, IBD, or intestinal tumor.2.Planned postoperative fasting >48 hours.3.Hypersensitivity to lactulose or placebo.4.Severe organ dysfunction (ASA ≥IV).5.Pregnancy or lactation.6.Cognitive or psychiatric disorder impairing follow-up.
研究组 & 干预措施
Lactulose Group
Patients receive oral lactulose 20 mL on postoperative day 1 and 20 mL on postoperative day 2.If the patient has no defecation or flatus by postoperative day 3, lactulose 20 mL will be administered once daily until gastrointestinal function recovers.
干预措施: Lactulose oral solution (Drug)
Placebo Group
Patients receive oral placebo (5% glucose solution) 20 mL on postoperative day 1 and 20 mL on postoperative day 2.
干预措施: Placebo (Drug)