Key result
Transapical myectomy and surgical cryoablation successfully treated incessant ventricular tachycardia, with the patient remaining free of ventricular arrhythmic events at 2 years.
Case Report (n=1)
Transapical myectomy combined with surgical cryoablation may be an effective treatment for refractory VT in patients with midventricular hypertrophic cardiomyopathy and apical aneurysm.
May offer a surgical option for refractory VT in midventricular HCM with apical aneurysm; hypothesis-generating and requires prospective validation.
Ventricular tachycardia (VT) associated with midventricular hypertrophic cardiomyopathy and apical aneurysm is rare, but is frequently refractory to medical therapy. We report a case of a 44-year old man with incessant VT despite undergoing catheter ablation in the neck of a left ventricular apical aneurysm. Resection of a hypertrophied midventricular muscle through an apical incision and surgical cryoablation of the aneurysm border from the epicardial and endocardial surface were performed successfully. The patient was well without ventricular arrhythmic events at 2 years postoperatively.
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Shimahara et al. (2014) conducted a case report in Refractory ventricular tachycardia due to hypertrophic cardiomyopathy with apical aneurysm (n=1). Transapical myectomy and surgical cryoablation was evaluated on Ventricular arrhythmic events. Transapical myectomy and surgical cryoablation successfully treated incessant ventricular tachycardia, with the patient remaining free of ventricular arrhythmic events at 2 years.
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