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Updated: Feb 15, 2026

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
Published on: March 28, 2025
Direct Repair of Localized Aortic Dissection with Critical Malperfusion of the Left Main Trunk
Toshiki Fujiyoshi1, Nobusato Koizumi1, Toshiya Nishibe1
1Department of Cardiovascular Surgery, Tokyo Medical University, Tokyo, Japan.
Insights
Localized aortic dissection of the left coronary cusp is rare but dangerous. A modified Koster-Collins technique successfully repaired the dissection and restored left main trunk blood flow.
Area of Science:
- Cardiovascular Surgery
- Interventional Cardiology
- Aortic Pathology
Background:
- Localized aortic dissection involving the left coronary cusp is a rare clinical entity.
- This condition presents a high risk of mortality due to critical malperfusion of the left main trunk (LMT).
Background:
Localized aortic dissection on the left coronary cusp with critical malperfusion of the left main trunk (LMT) is rare and carries a high risk of death.
Case Presentation:
We report a case of a 48-year-old patient who developed localized aortic dissection of the left coronary cusp complicated by critical malperfusion of the LMT of the coronary artery. After percutaneous coronary intervention (PCI) for the LMT, a Koster-Collins-like direct repair of the localized aortic dissection was carried out by closure of the false channel using BioGlue (CyroLife, Inc., Kennesaw, GA, USA) with the reinforcement of double Teflon felt strips.
Conclusion:
The aortic repair using a modified Koster-Collins technique was successful.
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