title: [Surgical management of tricuspid regurgitation in patients undergoing mitral valve surgery--analysis of the amount of tricuspid valve annular dilatation].
abstract: As a means to determine whether correction for tricuspid regurgitation (TR) in mitral valve surgery is necessary, pulsed Doppler echocardiography was used to study 61 patients (age 49.5 +/- 9.5 years) who underwent mitral valve surgery. Early postoperative tricuspid regurgitation (average 9 +/- 3 postoperative days) was evaluated by a comparison with tricuspid valve annular dilatation and systolic annular shortening in preoperative right ventriculography. Kishimoto's method was used to measure the angiographic maximal early systolic (TVD) and minimal end-systolic diameters where as the shortening of the tricuspid annulus (STA) was expressed as a percent reduction in the maximal diameter by Ubago's methods. Patients were categorized into two groups, i.e., a group having had tricuspid annuloplasty (TAP group n = 23), and a NON-TAP group (n = 38). Preoperative right ventricular volume and hemodynamic indicator were studied with respect to both the TVD and the STA. Results are as follows: 1) The TVD significantly correlated with the end-diastolic right ventricular volume index (EDVI), regurgitant fraction of the tricuspid valve (RF), end-systolic right ventricular volume index (ESVI), pulmonary vascular resistance (PVR), mean pulmonary artery pressure (PAm), mean right atrial pressure (RAm), and right ventricular end-diastolic pressure (RVEDP) (p less than 0.01). 2) The STA was significantly correlated with EDVI, RF, ESVI, RAm and RVEDP (p less than 0.01). In the NON-TAP group, the TVD was significantly larger in patients with residual TR (average 32.5 mm/m2) than in patients having postoperative disappearance of TR (average 25.7 mm/m2) (p less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: First Department of Surgery, Osaka University, Medical School, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Watanabe
mesh_terms: D000328:Adult; D000368:Aged; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging; D015150:Echocardiography, Doppler; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery*; D008944:Mitral Valve Insufficiency / Q000150:complications / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000150:complications / Q000601:surgery; D014261:Tricuspid Valve / Q000000981:diagnostic imaging* / Q000473:pathology; D014262:Tricuspid Valve Insufficiency / Q000150:complications / Q000601:surgery*