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First received: May 17, 2026

Clinical Trial: Pneumoperitoneum Pressure and Lung Ultrasound Atelectasis

Study Status: COMPLETED

Recruit Status: COMPLETED

Condition: Atelectasis
Perioperative Complication
Pneumoperitoneum

Study Type: INTERVENTIONAL


Official Title: Effects of Different Pneumoperitoneum Pressures on Perioperative Atelectasis Assessed by Lung Ultrasound in Laparoscopic Cholecystectomy: A Prospective Randomized Single-Blind Controlled Trial

Brief Summary: Elective laparoscopic cholecystectomy may lead to perioperative atelectasis due to pneumoperitoneum-related diaphragmatic elevation and impaired respiratory mechanics. Lung ultrasound (LUS) provides a noninvasive bedside method for evaluating perioperative aeration loss. This prospective randomized controlled study aims to compare the effects of low-pressure (10 mmHg) and standard-pressure (14 mmHg) pneumoperitoneum on perioperative atelectasis assessed by LUS in patients undergoing laparoscopic cholecystectomy…

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