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Four patients are reported who underwent repair of partial anomalous pulmonary venous drainage with intact atrial septum. One patient also had azygos continuation of the inferior vena cava and two patients had associated mitral stenosis. Diagnostic considerations and guidelines for operative repair are presented. [ABSTRACT FROM AUTHOR]

Presents a study which examined the effect of low-level carbon monoxide exposure on the onset and duration of angina pectoris. Methods; Results; Discussion.

We report a patient who developed aortic regurgitation and first degree atrioventricular block caused by infective endocarditis complicating aortic valve stenosis. There was premature closure of the mitral valve and, in the absence of an Austin Flint murmur, a simultaneous high frequency sound was audible which we regard as a presystolic first heart sound. That such a sound may be associated with valve closure, even though this precedes electrical and mechanical ventricular systole, provides further support for the valvular origin of the first heart sound. [ABSTRACT FROM PUBLISHER]