• J. Thorac. Cardiovasc. Surg. · Aug 2016

    The impact of concomitant pulmonary hypertension on early and late outcomes following surgery for mitral stenosis.

    • Bo Yang, Christina DeBenedictus, Tessa Watt, Sean Farley, Alona Salita, Whitney Hornsby, Xiaoting Wu, Morley Herbert, Donald S Likosky, and Steven F Bolling.
    • Department of Cardiac Surgery, University of Michigan Health System, Ann Arbor, Mich. Electronic address: boya@med.umich.edu.
    • J. Thorac. Cardiovasc. Surg. 2016 Aug 1; 152 (2): 394-400.e1.

    ObjectivesTo provide initial evidence on the management of mitral stenosis and pulmonary hypertension (PH) based on short-term and long-term outcomes following mitral valve surgery.MethodsConsecutive patients with mitral stenosis (n = 317) who had undergone mitral valve surgery between 1992 and 2014 with recorded pulmonary artery pressure (PAP) data were reviewed. PH severity, based on systolic PAP, was categorized as mild (35 to 44 mm Hg), moderate (45 to 59 mm Hg), or severe (>60 mm Hg). Primary outcomes were 30-day mortality and long-term survival.ResultsThere were no significant between-group differences in age or preoperative comorbidities. Mitral valve surgery included mitral valve replacement (78%) and repair (22%). The severe PH group had more mitral valve replacement (81%; P = .04), severe tricuspid valve regurgitation (31%; P = .003), right heart failure (17%; P = .02), and concomitant tricuspid valve procedures (46%; P < .001). For severe PH, 30-day mortality was 9%, with no significant group differences. Ten- and 12-year survival were significantly worse in the moderate-severe PH group (58% and 51%, respectively) compared with the normal PAP-mild PH group (83% and 79%, respectively) with a hazard ratio of 2.98 (95% confidence interval, 1.55-5.75; P = .001). Ten-year survival after mitral valve surgery for mitral stenosis was inversely associated with preoperative PAP.ConclusionsMitral valve surgery can be performed with acceptable 30-day mortality for patients with mitral stenosis and moderate to severe PH, but long-term survival is impaired by moderate to severe PH. Patients with mitral stenosis and mild PH (systolic PAP 35-44 mm Hg) should be considered for mitral valve surgery.Copyright © 2016 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.

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