Bedside lung ultrasound to find early breathing problems after low-flow anesthesia for gallbladder surgery
Official title: Evaluation of Early Postoperative Pulmonary Complications That Can be Detected by Ultrasonography in Patients Undergoing Laparoscopic Cholecystectomy With Low-flow Anesthesia
Run by Ankara Ataturk Sanatorium Training and Research Hospital · NCT06824506 · Data updated 2026-11-12
This will use quick bedside lung ultrasound to test for early lung collapse and other breathing problems right after extubation in adults having laparoscopic gallbladder surgery with low-flow anesthesia.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 110 (estimated) |
| Sponsor | Ankara Ataturk Sanatorium Training and Research Hospital Government |
| Locations | 1 site (Ankara) |
| Status | Recruiting |
| Started | February 15, 2025 |
| Main results expected | March 31, 2025 |
| Study ends | June 15, 2026 |
| Registry record updated | June 5, 2026 |
| Trial ID | NCT06824506 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (ASA 1–3) scheduled for elective laparoscopic cholecystectomy with BMI 18–35 kg/m2 who can give informed consent and do not have preexisting lung disease or pregnancy.
✕Probably not a fit
Patients with emergency surgery, ASA 4 or higher, existing lung disease, prior thoracic surgery, pregnancy, or a high preoperative lung ultrasound score are unlikely to benefit from this observational protocol.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Adults scheduled for elective laparoscopic cholecystectomy under general anesthesia with low-flow fresh gas flow (0.5–1 L/min) will be enrolled in an observational protocol. Bedside lung ultrasonography will be performed immediately after extubation to score atelectasis and other respiratory findings, and patients will be monitored for subsequent pulmonary complications and any supportive interventions (oxygen, respiratory exercises, mobilization, non-invasive ventilation). Relevant perioperative data (BMI, ASA class, anesthesia parameters) will be recorded and patients with preexisting lung disease or abnormal preoperative lung ultrasound will be excluded. No experimental treatments are given and clinical care decisions remain with the treating team.
Why it matters
Potential benefit: If successful, earlier detection of postoperative atelectasis could enable prompt treatments that reduce pulmonary complications and shorten recovery.
How similar studies have gone: Lung ultrasound is already shown to be a quick and reliable method for detecting postoperative atelectasis, but the specific effects of low-flow anesthesia in laparoscopic cholecystectomy have been little studied.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients with informed consent * Patients scheduled for laparoscopic cholecystectomy * Patients with a Body Mass Index between 18-35 kg/m² * Patients in the American Society of Anesthesiologist (ASA) 1-2-3 category Exclusion Criteria: * Patients with emergency surgery planned * Patients with ASA 4 and above * Patients with lung disease * Patients who have undergone thoracic surgery * Pregnancy * Patients with a preoperative Lung Ultrasound Score of 2 or 3 in any lung region
Where it's running
-
Ankara Ataturk Sanatorium Research and Training Hospital
Ankara, Turkey (Türkiye) Recruiting
Study contacts
- Principal investigator: Mustafa Özgür CIRIK, MD — Ankara Ataturk Sanatorium Training and Research Hospital
- Study coordinator: Hilal SAZAK, MD
- Email: hilalgun@yahoo.com
- Phone: +90 312 356 90 00
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Timing of Recruitment Maneuver in Robotic Prostate Surgery
This study tests whether doing a recruitment maneuver before or after CO2 insufflation during robotic prostate surgery helps prevent lung problems afterward.
-
Ultrasound-Guided Rectus Sheath Block vs Local Infiltration for Pain After Laparoscopic Gallbladder Removal
This trial tests whether a rectus sheath block or direct local anesthetic infiltration provides better pain control after laparoscopic cholecystectomy.
-
Camera-based non-contact vital sign monitoring during surgery
This project will try a camera-based non-contact system to measure heart rate, blood pressure, and oxygen levels in adults having surgery under general anesthesia.
-
Single-step versus stepwise lung inflation after cardiopulmonary bypass
This study will test whether a single sustained lung inflation or a gradual stepwise inflation better preserves cardiac output and re-expands collapsed lung areas in adults undergoing elective open-heart surgery with cardiopulmonary bypass.
-
Ultrasound-guided lung recruitment to prevent postoperative lung complications after total laparoscopic hysterectomy in people with obstructive sleep apnea
This trial will test whether ultrasound-guided lung recruitment maneuvers can reduce postoperative pulmonary complications in adults with obstructive sleep apnea having total laparoscopic hysterectomy.
-
One versus two cystic duct stents for preventing repeat gallbladder attacks
This compares one versus two cystic duct stents to see if two stents better prevent repeat gallbladder attacks in adults who are not immediate candidates for gallbladder removal.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.