Aortico-left ventricular tunnel: 35-year experience

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Abstract

Objectives The purpose of this study was to review our 35 years of experience with aortico-left ventricular tunnel (ALVT), with emphasis on diagnosis, surgical details, and follow-up. Background Aortico-left ventricular tunnel is a rare congenital anomaly. Neonatal surgery has been advocated in all due to long-term concern of valvar aortic regurgitation (AR). Methods We identified 11 patients from 1963 to August 2002. Clinical, echocardiographic, catheterization, and surgical details were reviewed. Results Eight of 11 patients presented at less than six months old (six with congestive heart failure) and three later with a murmur, all with clinical evidence of AR. Associated lesions, most commonly aortic valve and coronary artery anomalies, were present in 45%. Catheter occlusion was considered but not performed in five. Spontaneous occlusion was documented in one. Ten had surgery (nine in our institution), seven with direct suture and two by patch closure of the aortic end of the AVLT. At follow-up (median, 5 years; 1 month to 35 years), all were asymptomatic; three had residual ALVT (one moderate, two small/trivial), with at most mild AR. Conclusions Aortico-left ventricular tunnel is a rare cardiac malformation with a good post-operative long-term outcome. Associated lesions occurred in 45%. Catheterization should be reserved for patients with unclear non-invasive findings or transcatheter closure. We recommend surgery for most patients. We report spontaneous closure in one patient, prompting consideration of conservative follow-up in rare small, asymptomatic AVLT. © 2004 by the American College of Cardiology Foundation.

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Martins, J. D., Sherwood, M. C., Mayer, J. E., & Keane, J. F. (2004). Aortico-left ventricular tunnel: 35-year experience. Journal of the American College of Cardiology, 44(2), 446–450. https://doi.org/10.1016/j.jacc.2004.04.032

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