Lung Ultrasound Score and Postoperative Pulmonary Complications in Major Non-Thoracic Surgery

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Conditions studied: Postoperative Pulmonary Complications (PPCs), Hypoxemia

In brief

This prospective observational cohort study aims to evaluate the predictive value of perioperative lung ultrasound (LUS) score in determining early postoperative oxygen requirement and pulmonary complications in patients undergoing major non-thoracic surgery. Postoperative pulmonary complications remain a significant cause of morbidity and mortality in surgical patients. Lung ultrasound is a non-invasive, bedside imaging modality that allows real-time assessment of lung aeration and pathology. This study will investigate the association between perioperative LUS score and early postoperative respiratory outcomes, including oxygen requirement and pulmonary complications.

Key facts

Study ID: NCT07515001
Run by: Dicle University
People needed: 97
Starts: 2026-04-01
Expected to finish: 2027-01-01
Last updated by the study team: 2026-04-07

Who can join

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

You may qualify if…

Aged 18 to 65 years
Scheduled for elective major non-thoracic surgery
Undergoing surgery under general anesthesia
Expected surgical duration of 3 hours or longer
ASA physical status I-III
Willing to participate in the study
Provides written informed consent

You may not qualify if…

Patients undergoing thoracic or cardiac surgery
Advanced chronic lung disease (e.g., severe COPD or pulmonary fibrosis)
History of previous lung resection
Preoperative pneumonia or active pulmonary infection
Body mass index greater than or equal to 40 kg/m2
Pregnancy
Emergency surgery
Planned postoperative mechanical ventilation or intensive care unit admission
Refusal to participate in the study

Full record on ClinicalTrials.gov

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