Abstract
Portal vein (PV) shrinkage sometimes eliminates the possibility of liver transplantation in biliary atresia patients after hepatic portoenterostomy. To determine the factors leading to PV shrinkage, we performed a serial sonographic study of the portal venous system in 21 children. Cross-sectional PV area and mean portal venous velocity (PVV) were reduced in patients with refractory cholangitis and those with gastroesophageal varices and cholangitis. Although the reduction in cross-sectional PV area was greater in patients with four-time laparotomy than single laparotomy, the mean PVV was not reduced by repeated laparotomy. Patients with varices were lower in age, weight, mean PVV, cross-sectional PV area for age, and had higher serum total bilirubin levels. In conclusion, refractory cholangitis is a significant factor in shrinking the PV. With active bile drainage, varices spontaneously regress, the PV increases in both caliber and total length per unit hepatic volume, and PVV normalizes. It is suggested that pulsed Doppler PV sonography can help to determine the optimal time for liver transplantation referral in biliary atresia patients with progressive cirrhosis.
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This work was supported by a Grant for Pediatric Research (63-A-05) from the Ministry of Health and Welfare.
Offprint requests to: K. Tanaka
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Tanaka, K., Shirahase, I., Uemoto, S. et al. Changes in portal vein hemodynamics after hepatic portoenterostomy in biliary atresia. Pediatr Surg Int 7, 260–264 (1992). https://doi.org/10.1007/BF00183976
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DOI: https://doi.org/10.1007/BF00183976