Chronic Dissection of Left Sinus of Valsalva Obscuring Left Main Coronary Artery
Korakoth Towashiraporn1, Vithaya Chaithiraphan
1Her Majesty Cardiac Center, Siriraj Hospital, 7th Floor, Bangkok Noi, Bangkok, Thailand, 10700. korakonov@yahoo.com.
The Journal of Invasive Cardiology
|July 2, 2019
Insights
Chronic dissection of the left sinus of Valsalva obscured the left main coronary artery (LMCA) in a 44-year-old woman. The right coronary artery provided collateral circulation to the left coronary system.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Radiology
Background:
- Coronary artery anomalies and dissections can lead to significant hemodynamic compromise.
- Sinus of Valsalva aneurysms and dissections are rare but critical conditions.
- Chronic dissections may present with subtle or collateral-dependent symptoms.
Observation:
- A 44-year-old female patient presented with findings suggestive of coronary artery compromise.
- Coronary angiography revealed a chronic dissection originating from the left sinus of Valsalva.
Findings:
- The dissection completely obscured the origin of the left main coronary artery (LMCA).
- Significant collateral blood flow from the right coronary artery was observed supplying the left coronary system.
Implications:
- This case highlights the importance of recognizing rare coronary pathologies.
- Effective collateral circulation can sustain myocardial perfusion despite severe LMCA obstruction.
- Understanding these anatomical variations is crucial for guiding interventional and surgical strategies.
Abstract:
Coronary angiography in a 44-year-old woman shows chronic dissection of the left sinus of Valsalva, totally obscuring the LMCA, with good collaterals supplying the left coronary system from the right coronary artery.
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