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  • Title: Prospective randomized comparison of minilaparoscopy and percutaneous liver biopsy: diagnosis of cirrhosis and complications.
    Author: Denzer U, Arnoldy A, Kanzler S, Galle PR, Dienes HP, Lohse AW.
    Journal: J Clin Gastroenterol; 2007 Jan; 41(1):103-10. PubMed ID: 17198072.
    Abstract:
    BACKGROUND AND AIMS: Liver cirrhosis represents an advanced stage of hepatic fibrosis characterized by distortion of organ architecture and formation of regenerative nodules. Retrospective series reported percutaneous liver biopsy to miss cirrhosis in about 30%. The aim of this study was to prospectively compare diagnostic sensitivity regarding the detection of cirrhosis and the complication rates of percutaneous versus minilaparoscopic liver biopsy in chronic liver disease. METHODS: Eight hundred fifty-seven patients were randomized to percutaneous (415) or to minilaparoscopic liver biopsy (442). Macroscopic liver evaluation was documented as normal, fibrosis, or cirrhosis. Liver specimens were assessed blindly according to the modified Ishak score. RESULTS: Demographic and clinical data of procedure groups were comparable. Histologic grading alone diagnosed cirrhosis in 22.3% (n=85) of liver specimens obtained by percutaneous route compared with 26.0% (n=98) obtained by minilaparoscopy (P=0.270). By combining macroscopy and histology, minilaparoscopic staging diagnosed a significantly higher rate of liver cirrhoses with 33.8% (n=127) compared with percutaneous route with 22.3% (n=85) (P=0.001). Analysis of minilaparoscopic data revealed that 33 of the 128 cirrhoses were diagnosed by inspection only, suggesting a 26% underestimation of cirrhosis by histology alone. Severe complications occurred in 1.0% (n=4) of percutaneous and in 0.2% (n=1) of minilaparoscopic procedures (P=0.025). CONCLUSIONS: Minilaparoscopic evaluation based upon the combined macroscopic and histologic assessment is more sensitive with regards to the detection of cirrhosis and has a comparable safety profile.
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