Lung Function in Bariatric Surgery Candidates

Completed

• Conditions: Lung Function Decreased; Obesity

• Registration Number: NCT06421168
• Lead Sponsor: China-Japan Friendship Hospital

Brief Summary

This study aims to retrospectively investigate the impact of body mass index on lung function metrics, e.g. FEV1%, FVC%, FEV1/FVC%.

Detailed Description

Not available

Study Timeline

• Study Start: 2017-09-01
• Primary Completion: 2023-08-31
• Study Completion: 2023-12-31
• Status Verified: 2024-05
• Study First Submitted: 2024-05-13
• Study First Submitted QC: 2024-05-15
• Last Update Submitted: 2024-05-15
• Study First Posted: 2024-05-20
• Last Update Posted: 2024-05-20

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 1834

Inclusion Criteria

• Subjects with obesity (BMI ≥ 27.5 kg/m2 according to Chinese guidelines, guidelines from the American Society for Metabolic and Bariatric Surgery and International Federation for the Surgery of Obesity and Metabolic Disorders);
• Age > 16 years;
• Complete preoperative pulmonary function tests

Exclusion Criteria

• Patients with a history of lung surgery and/or respiratory diseases (e.g. asthma, pulmonary emphysema, and interstitial pulmonary fibrosis).

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
FEV1, FVC, FEV1/FVC% in class 1, 2, and 3 obesity	At the time of pulmonary function testing	Class 1 obesity: 27.5 kg/m2 \< body mass index \< 32.5 kg/m2; Class 2 obesity: 32.5 kg/m2 \< body mass index \< 37.5 kg/m2; Class 2 obesity: body mass index \> 37.5 kg/m2.

Trial Locations

Locations (1)

Yuntao Nie; 🇨🇳 Beijing, China