Supraventricular crest: Structure, function and implications for surgical resection in tetralogy of Fallot

Abstract

The supraventricular crest known by its various names is a distinct muscular structure in the normal right ventricle connecting the upper part of the septum to the parietal wall. Its arrangement is disturbed in hearts with tetralogy of Fallot resulting in different names given to its parts. Nevertheless, being comparable location wise to normal implies it has a similar role in the function of the right ventricular and tricuspid valve. Surgical resection of the crest to relief stenosis in tetralogy of Fallot merits reconsideration.

Keywords

• Anatomy
• Parietal band
• Septal band
• Ventriculo-infundibular fold