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Adventitial hematoma triggering coronary spasm during percutaneous coronary intervention
K M Ziada1, M Roffi, T D Crowe
1Cardiology Department, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA.
The Journal of Invasive Cardiology
|June 1, 2001
Summary
A hematoma near a coronary stent caused lumen narrowing, likely due to coronary spasm. Intracoronary vasodilators resolved the narrowing, suggesting spasm as the cause.
Area of Science:
- Cardiovascular medicine
- Interventional cardiology
- Medical imaging
Background:
- Percutaneous coronary intervention (PCI) is a common procedure for treating coronary artery disease.
- Stent deployment can sometimes lead to procedural complications.
- Coronary artery spasm is a known cause of myocardial ischemia.
Observation:
- A patient undergoing PCI of the left anterior descending artery developed lumen narrowing post-stent deployment.
- Intravascular ultrasound revealed an adventitial hematoma without dissection or lumen compression.
- The narrowing resolved completely after administration of intracoronary vasodilators.
Findings:
- The observed lumen narrowing was attributed to coronary artery spasm.
- The spasm was likely triggered by the adventitial hematoma adjacent to the deployed stent.
- Intravascular ultrasound was crucial in differentiating spasm from other complications like dissection.
Implications:
- Adventitial hematoma can precipitate coronary artery spasm during PCI.
- Recognition of this mechanism is important for accurate diagnosis and management of lumen narrowing post-stent.
- This finding may influence procedural techniques and post-procedural care in complex PCI cases.