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A new aortoventriculoplasty for prosthetic aortic valve replacement
Ulrik Hvass1, Franck Baron, A Elsebaey
1AP-HP Hôpital Bichat, 46 rue Henri Huchard, Paris 75018, France. Ulrik.Hvass@bch.ap-hop-paris.fr
The Journal of Thoracic and Cardiovascular Surgery
|September 23, 2003
Summary
A modified Konno aortoventriculoplasty technique successfully reconstructed outflow tracts, avoiding heart block. This approach offers advantages like simpler exposure and clear landmarks for safe septal repair.
Area of Science:
- Cardiovascular Surgery
- Congenital Heart Disease Repair
Background:
- Konno aortoventriculoplasty traditionally involves complex double patch reconstruction, risking permanent heart block.
- A modified technique was developed to address these challenges in complex cases.
Observation:
- A 42-year-old woman with congenital aortic stenosis and subaortic obstruction underwent reoperation.
- The modified technique involved splitting the aortic annulus and septum along the intercoronary commissure, away from conducting tissue.
Findings:
- The modified procedure allowed for enlargement of the aortic annulus and septum with a single Dacron patch.
- Postoperative echocardiogram showed a low transprosthetic gradient, and the patient maintained permanent sinus rhythm.
Implications:
- This modified aortoventriculoplasty provides simpler surgical exposure and avoids critical conducting tissues.
- The technique facilitates anatomical restoration of the right ventricular outflow tract and reduces the risk of heart block.