Myocardial ischemia with left ventricular outflow obstruction
نویسندگان
چکیده
We report an unusual case of a 32-year old man who was treated for a hypertrophic obstructive cardiomyopathy (HOCM) with a DDD pacing with short AV delay reduction in the past. Without prior notice the patient developed ventricular fibrillation and an invasive cardiac diagnostic was performed, which revealed a myocardial bridging around of the left anterior descending artery (LAD). We suspected ischemia that could be either related to LAD artery compression or perfusion abnormalities due to AV delay reduction with related to diastolic dysfunction.
منابع مشابه
Left Ventricular Wall Tension in Fixed Orifice Aortic Stenosis
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Correspondence: W.J. McKenna, MD, The Heart Hospital, University College London Hospitals, 16-18 Westmoreland Street, London W1G 8PH, United Kingdom E-mail: [email protected] The initial descriptions of hypertrophic cardiomyopathy (HCM) focused on the presence of left ventricular (LV) outflow tract obstruction as a defining feature of the condition.1-6 The use of echocardiography, which ...
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Fifty patients with hypertrophic cardiomyopathy underwent invasive study of coronary and myocardial hemodynamics in the basal state and during the stress of pacing. The 23 patients with basal obstruction (average left ventricular outflow gradient, 77 +/- 33 mm Hg; left ventricular systolic pressure, 196 +/- 33 mm Hg, mean +/- 1 SD) had significantly lower coronary resistance (0.85 +/- 0.18 vers...
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عنوان ژورنال:
- Journal of Cardiothoracic Surgery
دوره 4 شماره
صفحات -
تاریخ انتشار 2009