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Minimally invasive versus conventional aortic valve replacement: a prospective randomized trial
Selami Dogan1, Omer Dzemali, Gerhard Wimmer-Greinecker
1Department of Thoracic and Cardiovascular Surgery, Johann Wolfgang Goethe University, Frankfurt, Germany.
The Journal of Heart Valve Disease
|February 13, 2003
Summary
Minimally invasive aortic valve replacement (AVR) using a partial upper sternotomy is safe and effective. This approach offers reduced blood loss and comparable neurological outcomes to conventional AVR.
Area of Science:
- Cardiovascular Surgery
- Minimally Invasive Procedures
- Aortic Valve Replacement
Background:
- Conventional aortic valve replacement (AVR) involves a complete median sternotomy.
- Minimally invasive techniques aim to reduce surgical trauma and improve patient recovery.
Purpose of the Study:
- To compare the outcomes of conventional AVR with minimally invasive AVR (mAVR).
- To evaluate safety, efficacy, and neurological protection in both surgical approaches.
Main Methods:
- Prospective randomized study of 40 patients undergoing elective AVR.
- Comparison between conventional (median sternotomy) and minimally invasive (partial upper sternotomy) groups.
- Assessment of intraoperative/postoperative data, myocardial/cerebral protection markers, and neuropsychological tests.
Main Results:
- Minimally invasive AVR showed significantly less chest tube drainage (p = 0.008).
- No significant differences in operative time, cardiopulmonary bypass time, pain, respiratory function, or neurological outcomes.
- Similar levels of myocardial injury markers (CK, CK-MB, troponin T) and cerebral markers (S-100B, NSE) between groups.
Conclusions:
- Partial upper sternotomy is a safe and reliable approach for AVR.
- Minimally invasive AVR offers reduced blood loss and good cosmetic results with comparable safety and neurological outcomes.
- Limited surgical access in mAVR does not compromise myocardial protection or neurological outcomes.