To assess the effect of tricuspid annuloplasty (TAP), the authors measured the size of the liver by using echography in the patients undergoing tricuspid annuloplasty. From April 1989 to August 1996, 18 patients underwent TAP. The authors measured preoperatively and postoperatively the hepatic index (HI) by echography, defined as follows: HI=L x D/BSA (L: the top-to-bottom length of the left hepatic lobe; D: the front-to-back length of the left hepatic lobe; BSA: body surface area). They also calculated the reducing rate (RR) of HI. The mean HI decreased after TAP; preoperative HI: 39.7+/-11.8 vs postoperative HI: 33.8+/-10.5 (p=0.0069). The RR of the patients with postoperatively residual tricuspid regurgitation (TR) over 2 degrees (n=4) was significantly lower than that of the other patients (n=14): -11.0+/-6.0% vs 20.2+/-3.2% (p=0.0003). They conclude that the use of echography to measure the HI is a good method of assessing congestion after TAP.
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