Related Experiment Video
Updated: Jun 3, 2026

Systematic Bronchoscopy: the Four Landmarks Approach
Published on: June 23, 2023
The air apparent: a rare complication during flexible bronchoscopy.
George E Abraham1, Brian H Sumrall, Mark R Bowling
1Division of Pulmonary, Critical Care, and Sleep Medicine, University of Mississippi Medical Center, Jackson, 39216-4505, USA. geabraham@medicine.umsmed.edu
Flexible bronchoscopy is generally safe, but this case shows multiple air leak complications. These rare events may be linked to oxygen cannula placement rather than the procedure itself.
Area of Science:
- Pulmonology
- Medical Procedures
- Patient Safety
Background:
- Flexible bronchoscopy is a widely performed, low-risk outpatient procedure.
- Complications are infrequent, occurring in less than 1% of cases.
- Reported complications include pneumomediastinum, pneumopericardium, pneumoperitoneum, interstitial lung emphysema, and subcutaneous emphysema.
Observation:
- A patient undergoing flexible bronchoscopy developed multiple, simultaneous air leak complications.
- These specific complications occurring together during bronchoscopy are not previously documented.
- The patient experienced a rapid and complete recovery with supportive care.
Findings:
- The study presents a rare case of concomitant pneumomediastinum, pneumopericardium, pneumoperitoneum, interstitial lung emphysema, and subcutaneous emphysema.
- Authors suggest these air leak complications may be associated with oxygen delivery cannula insertion, potentially in a patient with prior trauma, rather than directly caused by the bronchoscopy procedure.
- This challenges the direct procedural causality for such a constellation of air leaks.
Implications:
- Highlights the importance of considering all potential iatrogenic causes for air leaks post-procedure.
- Suggests careful patient assessment and technique during oxygen delivery post-bronchoscopy is crucial.
- Emphasizes the need for vigilance regarding rare but serious complications even in routine procedures.
Related Concept Videos
Respiratory System Abnormal Finding I: Inspection and Percussion
Inspection Findings
During an inspection, several findings may suggest the presence of respiratory distress or disease. Pursed-lip breathing, where exhalation is slowed by...
Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques
Endoscopic Studies II: Thoracocentesis
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...
Physical Assessment of the Respiratory Tract IV: Auscultation
Breath Sounds
Breath sounds are categorized into vesicular, bronchovesicular, and bronchial.
Respiratory System Abnormal Finding II: Palpation and Auscultation
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
Breathing

