• J. Thorac. Cardiovasc. Surg. · May 2011

    Echocardiographically based treatment of chronic ischemic mitral regurgitation.

    • Antonio M Calafiore, Angela L Iacò, Antonio Bivona, Egidio Varone, Salvo Scandura, Patrizia Greco, Antonella Romeo, and Michele Di Mauro.
    • Department of Adult Cardiac Surgery, Prince Sultan Cardiac Center, Riyadh, Kingdom of Saudi Arabia. calafiore@unich.it
    • J. Thorac. Cardiovasc. Surg. 2011 May 1;141(5):1150-6.e1.

    ObjectivesWe evaluated results of an echocardiographically based strategy combining mitral annuloplasty with other procedures to treat chronic ischemic mitral regurgitation.MethodsFrom March 2006 to February 2009, 147 patients underwent mitral valve surgery for chronic ischemic mitral regurgitation. Mean effective regurgitant orifice was 36 ± 11 mm(2), and ejection fraction was 35% ± 9%. On the basis of echocardiographic findings, in 10 cases a prosthesis was inserted and mitral annuloplasty was performed in 137 cases, isolated in 83, associated with chordal cutting in 12 cases (in 5 anterior leaflet was augmented with pericardial patch), and with exclusion of anteroseptal (n = 35) or inferior (n = 7) scars in 42.ResultsThirty-day mortality was 4.8%; 3-year survival was 86% ± 3%. None of the 126 survivors were in New York Heart Association functional class III or IV. Among 117 survivors of mitral valve repair, after 18 ± 6 months mean effective regurgitant orifice reduced from 34.1 ± 10.2 mm(2) to 2.3 ± 0.4 mm(2) (P < .001). Nine patients showed residual effective regurgitant orifice 10 to 19 mm(2). Reverse remodeling was present in 69 patients (59.0%), no remodeling in 40 (34.1%), and continuous remodeling in 8 (6.9%). Ejection fraction changed from 37% ± 10% to 43% ± 10% (P < .001), improving in 47, remaining unchanged in 63, and worsening in 7.ConclusionsEchocardiographically based strategy contributed to reduced postoperative mitral regurgitation persistence (effective regurgitant orifice ≥ 10 mm(2) in 7.7% of cases, with no patients showing effective regurgitant orifice ≥ 20 mm(2)). All patients remained in New York Heart Association functional class I or II, but more than mitral annuloplasty was performed in close to 40%.Copyright © 2011 The American Association for Thoracic Surgery. Published by Mosby, Inc. All rights reserved.

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