Purpose: To analyse the technique and results for correction of functional tricuspid insufficiency with Gregori's ring in the inverted position. Material and Methods: Between July 1991 and November 1997, 11 patients were operated on and the mean age was 37 years. The assessment of the patients was made by clinical symptoms (NYHA-FC) classification and echocardiography study. The ring was implanted in tricuspid position and the retilineal part of the ring was sutured with interruped stitches in the annulus of the anterior leaflet. The reason behind this technique was to reduce the natural ring that is dilated in that region. Eight patients was in functional class (FC) III or IV (72.7%) in the pre-operative period and atrial fibrilation (AF) was presented in 6 patients (54.5%). The mean right ventricular diameter was 34 mm (normal value is up to 26mm). Results: There was no early or late mortality. The associated procedures were: mitral valve replacement in 5 patients; closure of ASD in 2; aortic valve replacement plus mitral valve repair in 1; isolated mitral valve repair in 1; ressection of bilateral endomyocardial fibrosis (EMF) in 1 and myocardial revascularization in 1. Follow-up was possible in 10 patients (91%). Nine patients (89%) were in FC I or II. The patient in FC III presented residual mitral valve insufficiency post-correction of EMF. Three patients were in AF and 7 in sinus rythm and none in total A-V block. None of the patients were reoperated. The mean right ventricular diameter was 24.6 mm (p < 0.001). Conclusions: 1) The technique is safe and reproducible; 2) clinical improvement was evident; 3) reduction of the right ventricular cavity was statistically significant; 4) considering the excellent results of this technique, it can be employed, routinely.
Tricuspid valve insufficiency; Cardiovascular surgical procedures; Cardiac surgical procedures
