• Thomas Joudinaud, Erwan Flecher, and Ulrich Hvass.
• Service de chirurgie cardiaque, hôpital Bichat, 46, rue Henri-Huchard, 75018 Paris, France. thomas.joudinaud@bch.aphp.fr <thomas.joudinaud@bch.aphp.fr>
• Ann Cardiol Angeiol (Paris). 2008 Feb 1; 57 (1): 16-21.

IntroductionHypertrophic cardiomyopathy is an inherited disease characterized by a left ventricular hypertrophy, a diastolic dysfunction and rhythm troubles with risk of sudden death. There was an evolution in the surgical strategy to treat the patients who present a left ventricular outflow tract gradient.Materials And MethodsA retrospective study was conducted: We selected eight cases who presented an hypertrophic cardiomyopathy and operated on. Pre and post operative echocardiographic data were analysed. Follow up was obtained by call or mail to the cardiologist.ResultsThe patients were classified in four groups: isolated left ventricular outflow tract obstruction, left ventricular outflow tract obstruction and associated lesions, obstructive hypertrophic cardiomyopathy and endocarditis, post operative complications of the hypertrophic cardiomyopathy surgery. We observed a significant decrease of the left ventricular outflow tract mean gradient in the post operative period and at four years.ConclusionSurgical management of obstructive hypertrophic cardiomyopathy remain an important option in young patients, in case of failure of the ethanol septal ablation or in patients who present other surgical lesions. The dual chamber stimulation remain indicated in old patients.

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