Cardiology

Answer 4 Left access deviation. Ostium primum is a defect of the atrioventricular canal with cleft mitral valve constituting approximately 25% of all atrial septal defects.1 The tricuspid valve is either not cleft or it shows minor deficiency. Ostium primum defects are classified into type A, B, or C defects, which describe the various forms of anterior valve defects. REFERENCE 1. Alexander RW, Schlant RC, eds: Hurst’s The Heart, 8th ed. New York: McGraw-Hill, 1994.Alexander RW, Schlant RC, eds: Hurst’s The Heart, 8th ed. New York: McGraw-Hill, 1994. Click here to return to the questions

Hospital Physician     JCOM     Seminars in Medical Practice Hospital Physician Board Review Manuals About TWC    Subscribe    Contact TWC    Home    Search   Site Map Copyright © 2009, Turner White Communications Updated 1/04/08 • kkj