Fresh Gas Flow and Lung Ultrasonography in Laparoscopic Cholecystectomy

Starting soon · Not applicable

Conditions studied: Postoperative Atelectasis, Pulmonary Atelectasis

In brief

This prospective randomized clinical trial aims to evaluate the effects of different fresh gas flow rates on postoperative pulmonary aeration using lung ultrasonography in patients undergoing elective laparoscopic cholecystectomy. Patients will be randomly assigned to receive either low-flow anesthesia (0.5 L/min) or high-flow anesthesia (4 L/min) during maintenance of general anesthesia. The primary objective is to compare postoperative lung ultrasound scores and the incidence of atelectasis between the two groups.

Key facts

Study ID

NCT07753278

Run by

Adiyaman University

People needed

120

Starts

2026-08-15

Expected to finish

2026-10-15

Last updated by the study team

2026-08-07

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Adults aged 18 years or older.
• American Society of Anesthesiologists (ASA) physical status I-II.
• Scheduled for elective laparoscopic cholecystectomy under general anesthesia.
• Able and willing to provide written informed consent.

You may not qualify if…

• Refusal to participate in the study.
• History of chronic respiratory disease, including severe asthma, chronic obstructive pulmonary disease (COPD), or bronchiolitis.
• History of alcohol or substance abuse.
• Intraoperative airway or respiratory complications during endotracheal intubation or surgery.
• Life-threatening postoperative complications.
• Patients with ASA physical status III or higher.

Where it is running

• Adıyaman Training and Research Hospital — Adıyaman, Turkey (Türkiye)

Full record on ClinicalTrials.gov

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