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Minimally invasive aortic valve replacement without sternotomy. Experience with the first 50 cases
C Minale1, H J Reifschneider, E Schmitz
1Department of Cardiothoracic and Vascular Surgery, Witten-Herdecke University Wuppertal, Germany.
Summary
This study demonstrates a less invasive aortic valve replacement using a right parasternal mini-thoracotomy. The technique offers reduced hospital trauma and faster patient recovery with good outcomes.
Area of Science:
- Cardiovascular Surgery
- Minimally Invasive Cardiac Surgery
Background:
- Aortic valve replacement (AVR) is a critical procedure for severe aortic valve disease.
- Minimally invasive approaches to AVR are evolving to reduce surgical trauma.
Purpose of the Study:
- To evaluate a refined mini-thoracotomy technique for aortic valve replacement.
- To assess the safety, efficacy, and patient outcomes of this less invasive approach.
Main Methods:
- Aortic valve replacement was performed in 50 patients (age 49-82) using an 8 cm right parasternal mini-thoracotomy without rib resection.
- Cardiopulmonary bypass was established through the same access site.
- Standard surgical techniques and mechanical prostheses were utilized.
Main Results:
- No intraoperative complications or hospital deaths occurred.
- Patients were discharged on average 10 days postoperatively.
- Average cardiopulmonary bypass, aortic cross-clamp, and operation times were 118, 70, and 180 minutes, respectively. Two patients required reoperation for bleeding and periprosthetic leak.
Conclusions:
- This refined mini-thoracotomy technique for AVR reduces hospital trauma and preserves chest wall integrity.
- The approach facilitates early patient mobilization and rehabilitation.
- Technical improvements include avoidance of groin cannulation and simpler equipment, with easier access for reoperation if needed.