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Updated: Jun 20, 2026

Technique and Patient Selection Criteria of Right Anterior Mini-Thoracotomy for Minimal Access Aortic Valve Replacement
Published on: March 26, 2018
[Reoperation through right thoracotomy for mitral regurgitation after coronary artery bypass grafting; report of a
Takuya Miura1, M Sakaki, T Yasuoka
1Department of Cardiovascular Surgery, Kansai Rosai Hospital, Amagasaki, Japan.
Insights
This study highlights a minimally invasive approach for mitral valve replacement in patients with prior coronary artery bypass grafting (CABG). Right anterolateral thoracotomy offers a safe alternative to sternotomy, preserving bypass grafts.
Area of Science:
- Cardiovascular Surgery
- Cardiac Valve Repair and Replacement
- Minimally Invasive Cardiac Surgery
Background:
- Severe mitral regurgitation can occur years after coronary artery bypass grafting (CABG).
- Previous CABG presents challenges for subsequent cardiac surgeries due to graft proximity and risk of injury.
Observation:
- A 53-year-old male patient with severe mitral regurgitation post-CABG underwent mitral valve replacement.
- Coronary arteriography confirmed all bypass grafts (left internal thoracic artery and saphenous veins) were patent.
- Right anterolateral thoracotomy was selected over median sternotomy to minimize risk to bypass grafts.
Findings:
- Mitral valve replacement was successfully performed via right anterolateral thoracotomy under moderate hypothermia and ventricular fibrillation, without aortic cross-clamping.
- The patient experienced an uneventful postoperative recovery.
- This approach demonstrated feasibility and safety in managing mitral regurgitation in a patient with prior CABG.
Implications:
- Right anterolateral thoracotomy may be a superior surgical approach for mitral valve surgery in patients with a history of CABG.
- This technique potentially reduces the risk of injury to coronary bypass grafts compared to traditional sternotomy.
- Further studies are warranted to establish the long-term benefits and broader applicability of this minimally invasive strategy.
Abstract:
A 53-year-old male patient developed severe mitral regurgitation 6 years after coronary artery bypass grafting (CABG) with a left internal thoracic artery and 2 saphenous veins. The left ventriculography showed severe mitral regurgitation and slight decrease in left ventricular function. The coronary arteriography showed all grafts being patent. The median re-sternotomy was avoided because of the risk for injury of bypass grafts, and the right anterolateral thoracotomy was chosen. Mitral valve replacement was performed under moderate hypothermia and ventricular fibrillation without aortic cross clamping. The postoperative course was uneventful. Right anterolateral thoracotomy is considered to be a superior approach to the mitral valve surgery in the patients with previous CABG.
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