Anatomy of the muscular subpulmonary infundibulum with regard to the Ross procedure
| Autor: | Anna F Merrick, Magdi H. Yacoub, Siew Yen Ho, Robert H. Anderson |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Pulmonary and Respiratory Medicine
Aortic valve Adult medicine.medical_treatment Infundibulum Tendons Aortic sinus medicine Heart Septum Humans cardiovascular diseases Cardiac Surgical Procedures Child Pulmonary Valve business.industry Ross procedure Infant Heart Anatomy Heart septum medicine.anatomical_structure Pulmonary valve Aortic Valve cardiovascular system Subpulmonary infundibulum Surgery Cardiology and Cardiovascular Medicine business Artery |
| Zdroj: | The Annals of thoracic surgery. 69(2) |
| ISSN: | 0003-4975 |
| Popis: | Background . To clarify the precise anatomical relationship of the muscular subpulmonary infundibulum. Methods . Eleven hearts were dissected, and microscopic sections taken through the arterial trunks of a 37- week-old fetus and of a neonate. The anatomy was also investigated during operative Ross procedures. Results . The sinotubular junctions of the pulmonary and aortic roots cross obliquely. The leaflets of the pulmonary valve are lifted away from the ventricular septum by the free-standing subpulmonary infundibulum, whereas the aortic valve is deeply wedged between the atrioventricular junctions. The muscular infundibulum spirals around the aortic root, being longest below the right-facing aortic sinus and shortest below the left. The first septal perforating artery pierces the septum below the shortest part of the infundibulum, sometimes within a millimeter of the pulmonary valvar hinge, but a muscular sleeve lifts the pulmonary leaflets from the septal musculature. Conclusions . The pulmonary valvar leaflets are supported entirely by free-standing musculature, having no direct relationship with the ventricular septum. This makes possible the Ross procedure. |
| Databáze: | OpenAIRE |
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