Cholelithiasis and biliary sludge in Down’s syndrome patients
Keywords:
Down syndrome, Gallbladder, Lithiasis, Cholecystitis, CholecystectomyAbstract
CONTEXT AND OBJECTIVE: Although studies have demonstrated increased frequency of gall- bladder abnormalities among Down’s syndrome (DS) patients in some countries, there is only one paper on this subject in the Brazilian literature. The aim of this study was to demonstrate the prevalence, clinical characteristics and evolu- tion of lithiasis and biliary sludge among DS patients in a maternity and children’s hospital in Rio de Janeiro. DESIGN AND SETTING: This was a cross-sectional study followed by a retrospective cohort study on all individuals with an ultrasound diagnosis of gallbladder abnormalities. METHODS: 547 DS patients (53.2% male, 46.8% female) attending the Instituto Fernandes Figueira in 2001 underwent abdominal ultrasound ex- amination at ages of between one day and three years (mean: five months). Clinical and ultrasound data were analyzed. RESULTS: In 50 patients (9.1%), the ultrasound demonstrated gallbladder abnormalities (6.9% lithiasis and 2.1% biliary sludge). Spontaneous resolution was observed in 66.7% of the patients with biliary sludge and 28.9% with lithiasis. Cholecystectomy was carried out on 26.3% of the patients with gallstones. CONCLUSION: The results from this study and comparison with the literature suggest that DS pa- tients are at risk of developing lithiasis and biliary sludge and should be monitored throughout the neonatal period, even if there are no known risk factors for gallstone formation. Most frequently, these gallbladder abnormalities occur without symptoms and spontaneously resolve in most non-symptomatic patients. DS patients should be monitored with serial abdominal ultrasound, and cholecystectomy is indicated for symptomatic cases or when cholecystitis is present.
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