Related Experiment Video
Updated: Jul 13, 2026

Intracoronary Acetylcholine Provocation Testing for Assessment of Coronary Vasomotor Disorders
Published on: August 18, 2016
Coronary artery spasm following aortic valve replacement
Teresa Pinho1, Jorge Almeida, Mota Garcia
1Department of Cardiology and Centre of Cardiothoracic Surgery, S. João Hospital, Porto, Portugal.
A 62-year-old woman experienced coronary artery spasm after aortic valve replacement surgery. The spasm was caused by compression from a chest drain tube, leading to hemodynamic instability.
Area of Science:
- Cardiology
- Cardiac Surgery
- Vascular Medicine
Background:
- Aortic regurgitation necessitates surgical intervention, often aortic valve replacement.
- Postoperative complications in cardiac surgery require vigilant monitoring and prompt management.
Observation:
- A patient developed severe hemodynamic and electrical instability upon admission to the intensive care unit (ICU).
- Emergent coronary angiography was performed to investigate the cause of instability.
Findings:
- The coronary angiography revealed significant spasm in the distal right coronary artery.
- The spasm was directly attributed to external compression by a chest drain tube.
Implications:
- This case highlights a rare but critical complication of chest drain placement post-cardiac surgery.
- Awareness of mechanical compression as a cause of coronary artery spasm is crucial for preventing adverse outcomes.
Related Concept Videos
Aortic Regurgitation III: Medical Management
Aortic Regurgitation I: Introduction
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
Vascular Spasm
Angina I: Introduction

