The transmitral approach to left ventricular outflow tract obstruction.
Left ventricular outflow tract obstruction is a particularly vexing problem in patients with complete transposition (atrioventricular concordance and ventriculoarterial discordance) and intact ventricular septum. Previous techniques, such as resecting the obstructive lesion through the pulmonary valve or bypassing the obstruction, have not given entirely satisfactory results. An alternative approach of resection through the left atrium and the retracted mitral valve has recently been proposed. We have used this new technique to achieve excellent relief of this condition in three patients with different types of obstruction.
D002312:Cardiomyopathy, Hypertrophic / Q000601:surgery*; D002315:Cardiopulmonary Bypass; D006325:Heart Atria; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008722:Methods; D008943:Mitral Valve; D011662:Pulmonary Subvalvular Stenosis / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography; D014188:Transposition of Great Vessels / Q000000981:diagnostic imaging / Q000601:surgery*