Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/24/2025

Paracentesis Best Practices

Pre-Procedure Preparation

  • The American Association for the Study of Liver Diseases recommends obtaining informed consent from all patients before performing therapeutic or diagnostic paracentesis 1, 3
  • The European Association for the Study of the Liver suggests that routine correction of coagulopathy is not recommended, even with INR up to 8.7 or platelets as low as 19×10³/μL, before paracentesis 1, 3, 4
  • The American College of Gastroenterology states that absolute contraindications for paracentesis include clinically evident hyperfibrinolysis or disseminated intravascular coagulation 5, 6

Site Selection and Technique

  • The American Gastroenterological Association recommends using ultrasound guidance for every paracentesis, which reduces bleeding complications by 68% and lowers overall adverse event rates 1, 2, 8
  • The European Association for the Study of the Liver suggests preferring the left lower quadrant for paracentesis, as this location has greater ascites depth and thinner abdominal wall compared to other sites 1, 5

Drainage Protocol

  • The American Association for the Study of Liver Diseases recommends draining all ascitic fluid to dryness in a single session over 1-4 hours, as repeated low-volume paracentesis increases complication risk 1, 2, 4
  • The American College of Gastroenterology states that for volumes >5 liters, mandatory albumin replacement at 8 g per liter of ascites removed is recommended to prevent post-paracentesis circulatory dysfunction 1, 2, 4

Post-Procedure Management

  • The European Association for the Study of the Liver suggests having the patient lie on the opposite side for 2 hours after the procedure if there is any leakage, and applying a purse-string suture around the drainage site for persistent leakage 1, 2, 7
  • The American Gastroenterological Association recommends monitoring for bleeding complications, ascitic fluid leak, perforation, and infection at the puncture site, with most bleeding manageable with fluid resuscitation, transfusion, and correction of coagulation disorders 1, 5, 6, 9

Training Requirements

  • The American Association for the Study of Liver Diseases suggests that a minimum of 10 supervised procedures is sufficient for trained nurses to achieve low complication rates 8