Abstract
Percutaneous liver biopsy (PLB) is an important procedure in the diagnosis and follow-up of paediatric liver disease. Its purpose is to obtain tissue for histopathological observation, in our case, with ultrasound (US) guidance. To evaluate the effectiveness and safety of US-guided PLB in children. A retrospective study over a period of 12 years, from January 1999 until December 2010, with a selection of US-guided PLB performed in children with focal liver lesions or diffuse hepatic disease and liver transplant (LT). A 16-gauge automatic needle was used and a maximum of three fragments of liver were collected. Contraindications were: bile duct dilatation (>3 mm) INR > 1.5 (reference range, 0.9 -- 1.2) and platelet count <50,000 (reference range, 150,000 -- 450,000). Analysis focused on complications and final diagnosis. A total of 513 biopsies were performed, 379 (73.9%) in children who had undergone orthotopic LT, 117 (22.8%) in children with liver disease of unknown cause and 17 (3.3%) in children with focal hepatic lesions. Histological diagnosis was obtained in 509 of 513 (99.3%) biopsies performed. Minor complications were registered in 38 patients (7.4%) and major complications occurred in 5 patients (1%). None needed a surgical intervention. US-guided PLB in children is a safe and efficient method to achieve a specific diagnosis in liver disease.
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