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Minimally invasive port access versus conventional mitral valve surgery: prospective randomized study
Selami Dogan1, Tayfun Aybek, Petar S Risteski
1Department of Thoracic and Cardiovascular Surgery, Johann Wolfgang Goethe University, Frankfurt am Main, Germany. s.dogan@em.uni-frankfurt.de
The Annals of Thoracic Surgery
|February 1, 2005
Summary
Minimally invasive mitral valve surgery using port access showed similar safety to conventional median sternotomy. However, technical issues with endoclamping led to a shift towards transthoracic aortic clamping for improved efficiency.
Area of Science:
- Cardiovascular Surgery
- Minimally Invasive Procedures
- Cardiac Valve Repair
Background:
- Conventional mitral valve surgery involves median sternotomy.
- Port access mitral valve surgery offers a minimally invasive alternative.
Purpose of the Study:
- To compare the safety and efficacy of port access mitral valve surgery versus conventional median sternotomy.
- To evaluate intraoperative and postoperative outcomes, including organ-specific ischemia and functional recovery.
Main Methods:
- Prospective randomized study of 40 elective patients with mitral valve disease.
- Group I: Minimally invasive surgery via right anterior thoracotomy with femorofemoral cardiopulmonary bypass and endoclamping.
- Group II: Conventional mitral valve operation via median sternotomy.
Main Results:
- Mitral valve reconstructions were successful in 70% of patients in both groups.
- Port access group experienced intraoperative issues, with 30% requiring conversion to transthoracic aortic clamping.
- No statistically significant differences were observed in markers of myocardial, cerebral, or lower limb ischemia, nor in pulmonary and neuropsychological function tests between groups.
Conclusions:
- Port access mitral valve surgery demonstrates comparable clinical safety to median sternotomy.
- Endoclamping-related complications prompted a change in practice towards transthoracic aortic clamping for simplicity and cost-effectiveness.