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Archivos de cardiología de México

versión On-line ISSN 1665-1731versión impresa ISSN 1405-9940

Resumen

MUNOZ CASTELLANOS, Luis; KURI NIVON, Magdalena  y  QUINONES CARDENAS, Alma Rosa. Obstruction of the outflow tracts of hearts with complete transposition of the great arteries. Arch. Cardiol. Méx. [online]. 2002, vol.72, n.3, pp.192-202. ISSN 1665-1731.

The obstructive lesions in the outflow tracts of hearts with complete transposition of the great arteries determine the clinical evolution, prognosis, and the selection of surgical procedures. Their knowledge is basic to interpret the imaging findings. From the pathologic specimens collection of the Instituto Nacional de Cardiología "Ignacio Chávez", seventy-tree hearts with this cardiopathy were studied morphologically with the sequential segmental system. Thirty-two hearts had outflow tracts anomalies, being obstructive twenty-eight; among these lesions were: malposition of the infundibular septum, hipertrophyc left infundibulum, prolapse of tricuspid valve tissue through a ventricular septal defect, accessory mitral valve tissue, septal hipertrophy at the left outflow tract level, abnormal insertion of cord tendinae of the mitral valve, anticlockwise mal-position of the mitral valve (first report in the literature). The left outflow tract presented obstructive lesions (92.85%) more frequently than the right one. These lesions produce left ventricular hipertrophy, a fundamental feature for the anatomic surgical procedures to be made.

Palabras llave : Complete transposition of the great arteries; Outflow obstructions in transposition.

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