Severity Indices of Right Coronary Cusp Prolapse and Aortic Regurgitation Complicating Ventricular Septal Defect in the Outlet Septum-Which Defect Should Be Closed?-

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  • Which Defect Should Be Closed?

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Background The factors that may determine the evolution of right coronary cusp prolapse (RCCP) and regurgitation (AR) associated with a ventricular septal defect in the outlet septum (outlet VSD) have not been clarified. Methods and Results The Doppler echocardiograms of 316 patients were grouped according to both the development of RCCP, and the values of the right coronary cusp deformity index (RCCD) and the right coronary cusp imbalance index (R/L). All detected AR was ≤ slight, and not progressive in patients with both RCCD <0.30 and R/L <1.30. Moderate AR was detected in patients with either RCCD ≥0.30 or R/L ≥0.30. Rupture of the sinus of Valsalva was identified in patients with RCCD ≥0.30. A significantly large number of patients with both RCCD ≥0.30 and R/L ≥1.30 (p<0.01), and a few patients with either RCCD ≥0.30 or R/L ≥0.30 underwent aortic valvuloplasty or replacement. Operative outcome for AR ≤ slight was good. Conclusions There is no need to close an outlet VSD with RCCP when the RCCD <0.30 and R/L <1.30 as long as the AR remains trivial, but such defects should be closed when the RCCD is ≥0.30 or R/L ≥1.30. (Circ J 2004; 68: 139 - 143)<br>

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  • Circulation Journal

    Circulation Journal 68 (2), 139-143, 2004

    一般社団法人 日本循環器学会

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