Dynamic obstruction of the left ventricular outflow tract: surgical problems
Zünd, G.; Pasic, M.; Carrel, T.; von Segesser, L.K.; Jenni, R.; Turina, M.
Schweizerische Rundschau für Medizin Praxis 83(19): 570-572
1994
ISSN/ISBN: 1013-2058 PMID: 8202656 Document Number: 437691
Dynamic subaortic obstruction caused by septal hypertrophy may worsen the hemodynamics in some patients after heart surgery. Resection of the hypertrophied septum allows normal left ventricular function. We describe two patients with subaortic stenosis and a complicated postoperative course following heart surgery and additional resection of the subaortic muscular stenosis. One patient was reoperated because of residual obstruction of the left ventricular outflow tract; the postoperative course was uneventful thereafter. The second patient died after the primary surgery because of low output syndrome and sepsis. The postoperative management of this group of patients is difficult, demanding frequent assessment of the patient's hemodynamic condition and echocardiographic surveillance.