PURPOSE: To determine the normal caliber and rate of growth of the extrahepatic biliary ducts in the pediatric population. MATERIALS AND METHODS: The diameter of the common bile duct was measured with sonography in 173 children aged 1 day to 13 years (mean, 6.0 years; median, 5.0 years) who were examined for reasons other than hepatic or biliary tract disease. Results were subjected to regression analysis and compared with similar measurements of the extrahepatic portal vein and hepatic artery. The size of the gallbladder was subjectively estimated as distended, moderately full, and contracted. Differences in the diameter of the common bile duct in these three groups were evaluated with the Mann-Whitney U test. RESULTS: The average diameter of the common bile duct in this population was 1.27 mm +/- 0.67 (< 3.3 mm in all patients and < 1.2 mm in children aged 3 months or less). The slope of the curve describing the growth of the common bile duct was relatively flat, similar to that of the hepatic artery and half that of the portal vein. There was a significant difference in the diameter of the common bile duct between patients with distended gallbladders and those with contracted gallbladder (P = .02). CONCLUSION: The pediatric common bile duct is significantly smaller than adult norms; it is a distensible structure responsive to fluctuations in prandial bile flow.
PURPOSE: To determine the normal caliber and rate of growth of the extrahepatic biliary ducts in the pediatric population. MATERIALS AND METHODS: The diameter of the common bile duct was measured with sonography in 173 children aged 1 day to 13 years (mean, 6.0 years; median, 5.0 years) who were examined for reasons other than hepatic or biliary tract disease. Results were subjected to regression analysis and compared with similar measurements of the extrahepatic portal vein and hepatic artery. The size of the gallbladder was subjectively estimated as distended, moderately full, and contracted. Differences in the diameter of the common bile duct in these three groups were evaluated with the Mann-Whitney U test. RESULTS: The average diameter of the common bile duct in this population was 1.27 mm +/- 0.67 (< 3.3 mm in all patients and < 1.2 mm in children aged 3 months or less). The slope of the curve describing the growth of the common bile duct was relatively flat, similar to that of the hepatic artery and half that of the portal vein. There was a significant difference in the diameter of the common bile duct between patients with distended gallbladders and those with contracted gallbladder (P = .02). CONCLUSION: The pediatric common bile duct is significantly smaller than adult norms; it is a distensible structure responsive to fluctuations in prandial bile flow.
Authors: Meral Gunay-Aygun; Esperanza Font-Montgomery; Linda Lukose; Maya Tuchman Gerstein; Katie Piwnica-Worms; Peter Choyke; Kailash T Daryanani; Baris Turkbey; Roxanne Fischer; Isa Bernardini; Murat Sincan; Xiongce Zhao; Netanya G Sandler; Annelys Roque; Daniel C Douek; Jennifer Graf; Marjan Huizing; Joy C Bryant; Parvathi Mohan; William A Gahl; Theo Heller Journal: Gastroenterology Date: 2012-10-03 Impact factor: 22.682
Authors: Jesse L Courtier; Emily R Perito; Sue Rhee; Patrika Tsai; Melvin B Heyman; John D MacKenzie Journal: J Pediatr Gastroenterol Nutr Date: 2012-04 Impact factor: 2.839
Authors: Fabiana Benjaminov; George Leichtman; Timna Naftali; Elizabeth E Half; Fred M Konikoff Journal: Surg Endosc Date: 2012-08-18 Impact factor: 4.584
Authors: Anna Strongin; Theo Heller; Dan Doherty; Ian A Glass; Melissa A Parisi; Joy Bryant; Peter Choyke; Baris Turkbey; Kailash Daryanani; Deniz Yildirimli; Meghana Vemulapalli; Jim C Mullikin; May C Malicdan; Thierry Vilboux; William A Gahl; Meral Gunay-Aygun Journal: J Pediatr Gastroenterol Nutr Date: 2018-03 Impact factor: 2.839