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Chest, Vol 68, 248-250, Copyright © 1975 by American College of Chest Physicians

ARTICLES

Idiopathic hypertrophic subaortic stenosis and Wolff-Parkinson-White syndrome. Changes of obstruction in left ventricular outflow depending on the type of ventricular activation

J Angel, JJ Armendariz, HG del Castillo, CA Llamas and C Gausi

A case of idiopathic hypertrophic subaortic stenosis (IHSS) associated with Wolff-Parkinson-White (WPW) syndrome is studied. On three occasions preexcitation was suppressed with an intravenous injection of ajmaline. The left ventricular outflow tract obstruction (LVOTO) was analyzed; when WPW syndrome activation disappeared, the obstruction decreased. The ventricular depolarization pathway is noteworthy as a factor in the severity of LVOTO in IHSS.




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Copyright © 1975 by the American College of Chest Physicians.