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  • Title: Sonographically guided percutaneous liver biopsy in infants: a retrospective review.
    Author: Amaral JG, Schwartz J, Chait P, Temple M, John P, Smith C, Taylor G, Connolly B.
    Journal: AJR Am J Roentgenol; 2006 Dec; 187(6):W644-9. PubMed ID: 17114519.
    Abstract:
    OBJECTIVE: The purpose of our study was to assess the technical success and complication rate of sonographically guided percutaneous liver biopsies performed in infants under 1 year old at a tertiary pediatric center. MATERIALS AND METHODS: Retrospective analysis of 65 biopsies performed in 61 infants between January 1999 and December 2003 was conducted. Data collected included patient demographics; details of the biopsy procedure including indication, needle type and size, number of passes, and samples; pathology results; and procedure-related complications. RESULTS: The 61 infants studied included 37 males and 24 females with a mean age of 119 days (age range, 7-348 days; median age, 83 days) and a mean weight of 4.5 kg (1.9-8.3 kg). A total of 65 biopsies were performed in these 61 infants. General anesthesia was used in 66.1% of procedures. An 18-gauge needle was used in 47 (72.3%) procedures. Coaxial technique was used in seven procedures, and five biopsy tracts were embolized. In 63 of 65 procedures, the mean number of passes was 1.8. In two procedures, using a coaxial technique, 11 and 12 passes were made. One biopsy was considered technically unsuccessful, and 64 of 65 (98.5%) of the biopsies provided adequate tissue for pathologic analysis. There were three (4.6%) major complications related to bleeding: one requiring a blood transfusion, one requiring surgery, and one arteriobiliary fistula requiring transarterial embolization. Three (4.6%) minor complications also occurred. There were no deaths. CONCLUSION: Sonographically guided percutaneous liver biopsy in infants is a good and effective diagnostic tool. The complication rate, however, even when performed by an experienced physician, is not insignificant in this age group of patients.
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