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European Journal of Cardio-Thoracic Surgery, Vol 8, 145-148, Copyright © 1994 by European Association for Cardio-thoracic Surgery

ARTICLES

Temporary tricuspid valve detachment in closure of congenital ventricular septal defect

G Bol-Raap, AJ Bogers, H Boersma, PL De Jong, J Hess and E Bos
Department of Cardiothoracic Surgery, University Hospital Dijkzigt, Rotterdam, The Netherlands.

In a consecutive series of 149 patients with congenital ventricular septal defect (VSD), temporary tricuspid valve detachment was applied in 39 (detached group) to facilitate the transatrial approach for closure of the defect. Baseline characteristics showed that, preoperatively, the detached group were younger (1.3 +/- 2.3 vs. 3.5 +/- 4.1 years, P = 0.002), shorter (0.67 +/- 0.20 vs 0.87 +/- 0.34 m, P = 0.001), lighter (6.9 +/- 5.4 vs 13.5 +/- 12.0 kg, P < 0.002), and had a higher mean right atrial pressure (6 +/- 2 vs 4 +/- 3 mm Hg, P < 0.003), mean end-diastolic right ventricular pressure (10 +/- 3 vs 8 +/- 3 mm Hg, P < 0.01) and mean pulmonary vascular resistance (267 +/- 202 vs 170 +/- 131 dyn s cm-5, P < 0.02) on cardiac catheterization. At surgery the aortic cross-clamp time was longer (48 +/- 17 vs 39 +/- 15 min, P = 0.003). Seven patients died (2 detached, 5 not-detached), from causes not related to either tricuspid detachment or VSD closure. Follow-up was complete with a mean duration of 2.0 years (range 0.1- 5.5). All 142 survivors were investigated by echocardiography, which showed normal tricuspid valve function in all but 29 patients who had trivial regurgitation (6 detached, 23 not-detached). There was no tricuspid stenosis. In 30 patients (8 detached, 22 not-detached) a trivial residual VSD could be detected. One reoperation (not-detached) was performed 12.5 months after the initial surgery for recurrent VSD.(ABSTRACT TRUNCATED AT 250 WORDS)

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