Original Articles
Copyright ©The Author(s) 1999. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Aug 15, 1999; 5(4): 301-304
Published online Aug 15, 1999. doi: 10.3748/wjg.v5.i4.301
Liver biopsy: complications and risk factors
Pornpen Thampanitchawong, Teerha Piratvisuth
Pornpen Thampanitchawong, Teerha Piratvisuth, Department of Medicine, Songklanagarind Hospital, Hat Yai, Songkhla 90110, Thailand
Author contributions: All authors contributed equally to the work.
Correspondence to: Pornpen Thampanitchawong, MD, Department of Medicine, Songklanagarind Hospital, Hat Yai 90110, Thailand. tpornpen@ratree.psu.ac.th
Fax: 66-74-212912
Received: June 23, 1999
Revised: July 3, 1999
Accepted: July 19, 1999
Published online: August 15, 1999
Abstract

AIM: To study the complications and the risk factors of percutaneous liver biopsy, and to compare the complication rate between the periods o f 1987-1993 and 1994-1996.

METHODS: Medical records of all patients undergoing percutaneous liver biopsy between January 1, 1987 to September 31, 1996 in Songklanagarind Hospital were reviewed retrospectively.

RESULTS: There were 484 percutaneous liver biopsies performed. The total complication rate was 6.4%, of which 4.5% were due to major bleeding; the death rate was 1.6%. The important risk factors correlated with bleeding complications and deaths were a platelet count of 70 × 109/L or less, a prolonged prothrombin time of > 3 s over control, or a prolonged activated partial thromboplastin time of > 10 s over control. Although physician inexperience was not statistically significantly associated with bleeding complications and deaths, there was a reduction of death rate from 2.2% in 1987-1993 to 0% in 1993-1996. This reduction is thought to result from both increased experience o f senior staff and increased supervision of residents.

CONCLUSIONS: Screening of platelet count, prothrombin time, and activated partial thromboplastin time should be done and need to be corrected in case of abnormality before liver biopsy. Percutaneous liver biopsy should be performed or supervised by an expert in gastrointestinal diseases, especially in high risk cases.

Keywords: liver/pathology; biopsy; risk factor