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  • Title: Transluminal percutaneous septal myocardial ablation in a patient with hypertrophic obstructive cardiomyopathy.
    Author: Tsuchikane E, Nakamura T, Yamazaki K, Kitano K, Izumi M, Otsuji S, Tateyama H, Awata N, Sakurai M, Kobayashi T.
    Journal: Jpn Circ J; 1998 Jul; 62(7):537-40. PubMed ID: 9707012.
    Abstract:
    Reduction of septal mass by inducing septal infarction using catheter techniques is a new therapy for hypertrophic obstructive cardiomyopathy (HOCM). We report a case of severe HOCM that was dramatically improved by this non-surgical treatment. A 60-year-old woman with HOCM had suffered dyspnea (NYHA class III) with syncopal attack despite medical treatment. Left heart catheterization showed a resting pressure gradient across the left ventricular outflow tract of 156 mmHg. Two proximal septal branches of the anterior descending coronary artery were catheterized with a balloon catheter by the usual percutaneous coronary angioplasty techniques and were completely blocked by injection of absolute alcohol. The pressure gradient decreased to 26 mmHg after the procedure. Symptoms were markedly improved (NYHA class I) without any medical treatment. The reduced pressure gradient was maintained at the 3-month follow-up catheterization (36 mmHg). Further long-term follow-up is needed, but this treatment would seem to to be a promising technique for reducing pressure gradient in symptomatic patients with HOCM.
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