The effectiveness of splenorenal shunt in the correction of portal hypertension and hypersplenism in the long-term period

Abstract

The aim is to evaluate the long-term results of splenorenal anastomosis (SRA) in the treatment of portal hypertension a year or more after surgery. Materials and methods. The long-term results of the imposition of CPA after one to ten years have been studied. Life expectancy, the number of bleeding recurrences, and the severity of thrombocytopenia were assessed based on the results of fibrogastroscopy, duplex scanning (DS), and computed tomography with bolus enhancement. Results. One-year survival rate was 96.77%, three-year - 87.09%, five-year - 74.19%, ten-year - 22.58%. Within three years after bypass surgery, no recurrence of bleeding was observed, while in half of the patients (54.28%) the varicose veins of the esophagus disappeared, in the rest (45.72%) they decreased to grade I. Recurrence of bleeding occurred in six patients (17.14%) after 5-13 years, in one case massive, which was accompanied by shunt thrombosis (2.85%) according to the results of DS. For the rest, its function was preserved. The median platelet count one year and three after CP did not differ and was 110 x109 and 105 x109. It was found that the larger the diameter of the portal vein and the lower the volume velocity of blood flow in it, the smaller was the increase in platelets in the long-term period (r=0.90, p=0.037; r=0.87, p=0.01). Conclusions. After performing splenorenal bypass surgery for portal hypertension for the purpose of primary and secondary prevention of gastric bleeding, its recurrence occurred in 17.14% 5-13 years after surgery. After the correction of portal hypertension, there was a tendency to increase the number of platelets in the long-term postoperative period, which was dependent on the volume velocity of blood flow in the portal vein and the degree of its expansion before surgical treatment.