Repair of Subaortic Stenosis in Atrioventricular Canal With Absent or Restrictive Interventricular Communication by Patch Augmentation of Ventricular Septum, Resuspension of Atrioventricular Valves, and Septal Myectomy
| Autor: | Jacques A.M. van Son, Peter Schneider, Volkmar Falk |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
congenital
hereditary and neonatal diseases and abnormalities medicine.medical_specialty Internal medicine Mitral valve medicine Humans Ventricular outflow tract cardiovascular diseases Atrioventricular valve Heart septal defect Tricuspid valve business.industry Heart Septal Defects Infant Aortic Valve Stenosis General Medicine medicine.disease Septal myectomy Surgery medicine.anatomical_structure Echocardiography Child Preschool Aortic valve stenosis cardiovascular system Cardiology Mitral Valve Atrioventricular canal Tricuspid Valve business |
| Zdroj: | Mayo Clinic Proceedings. 72:220-224 |
| ISSN: | 0025-6196 |
| Popis: | Objective To describe a modification of a surgical technique for relief of subaortic stenosis in patients with atrioventricular canal. Material and Methods We report an etiology-oriented modified technique of repair of subaortic stenosis after previous repair of atrioventricular canal, without (N = 2) or with (N = 1) a restrictive interventricular communication. Results In addition to a generous myectomy of the left ventricular septum, the technique consists of complete detachment of the left and right atrioventricular valves from the ventricular crest, patch augmentation of the concavity of the ventricular crest, and attachment of both atrioventricular valves at the superior aspect of the ventricular septal patch; thus, the septal leaflet of the left atrioventricular valve—in particular, its superior component—is lifted away from the elongated left ventricular outflow tract. Conclusion This modification (as opposed to detachment of only the superior component of the septal leaflet of the left atrioventricular valve, as performed in previously proposed techniques) may be a valuable adjunctive technique to relieve subaortic obstruction associated with atrioventricular canal. In addition, this modification allows a secure anchoring of the patch to the right of the ventricular septum and therefore is associated with minimal risk of damaging the conduction tissue and of causing regurgitation of the left atrioventricular valve. |
| Databáze: | OpenAIRE |
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