title: Management of moderate functional tricuspid valve regurgitation at the time of pulmonary valve replacement: is concomitant tricuspid valve repair necessary?
abstract: Congenital heart defects with a component of pulmonary stenosis are often palliated in childhood by disrupting the pulmonary valve. Patients often undergo subsequent pulmonary valve replacement (PVR) to protect the heart from the consequences of pulmonary regurgitation. In the presence of associated moderate functional tricuspid valve (TV) regurgitation, it is unclear what factors contribute to persistent TV regurgitation following PVR. In particular, it is unknown whether PVR alone will reduce the right ventricular (RV) size and restore TV function or whether concomitant TV annuloplasty is required as well. Thirty-five patients were analyzed. Each patient underwent initial palliation of congenital pulmonary stenosis or tetralogy of Fallot, underwent subsequent PVR between 2002 and 2008, and had at least moderate TV regurgitation at the time of valve replacement. Serial echocardiograms were analyzed. Pulmonary and TV regurgitation, along with RV dilation and dysfunction, were scored (0, none; 1, mild; 2, moderate; 3, severe). RV volume and area were also calculated. Potential risk factors for persistent postoperative TV regurgitation were evaluated. One month following PVR, there was a significant reduction in pulmonary valve regurgitation (mean, 3 vs. 0.39; P < 0.0001) and TV regurgitation (mean, 2.33 vs. 1.3; P < 0.0001). There were also significant reductions in RV dilation, volume, and area. There were no significant further improvements in any of the parameters at 1 and 3 years. There was no difference in the degree of TV regurgitation postoperatively between those patients who underwent PVR alone and those who underwent concomitant tricuspid annuloplasty (mean, 1.29 vs. 1.31; P = 0.81). We conclude that following PVR, improvement in TV regurgitation and RV size occurs primarily in the first postoperative month. TV function improved to a similar degree with or without annuloplasty.
authors.affiliation: Department of Cardiothoracic Surgery, Emory University School of Medicine, Atlanta, GA 30322, USA. Brian_kogon@emoryhealthcare.org
authors.forename: Brian
authors.initials: B
authors.lastname: Kogon
authors.forename: Manisha
authors.initials: M
authors.lastname: Patel
authors.forename: Traci
authors.initials: T
authors.lastname: Leong
authors.forename: Michael
authors.initials: M
authors.lastname: McConnell
authors.forename: Wendy
authors.initials: W
authors.lastname: Book
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003657:Decision Making; D018618:Echocardiography, Doppler, Color; D005260:Female; D005500:Follow-Up Studies; D019918:Heart Valve Prosthesis Implantation / Q000379:methods*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011666:Pulmonary Valve Stenosis / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D012189:Retrospective Studies; D012720:Severity of Illness Index; D013997:Time Factors; D014262:Tricuspid Valve Insufficiency / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D055815:Young Adult