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Self-Assessment Questions

Cardiology

Answer 4
  1. 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.

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