Congenital tricuspid incompetence.

Case Report A boy of four years was first referred to the school cardiac clinic on account of a murmur heard at a routine examination. He had had pneumonia a year previously. He had not yet begun to talk. On examination at that time there was no cyanosis. A loud systolic murmur, accompanied by a thrill, was heard at the apex. An orthodiagram of the heart shadow showed prominence of the right auricle in the P.A. view. The cardiogram showed sinus rhythm with right bundle-branch block. He was seen at yearly intervals and at the age of 10 cardiac enlargement was detected clinically. The thrill and murmur were unchanged. The cardiogram again showed sinus rhythm and right bundle-branch