Related Experiment Video
Updated: Jul 31, 2025
07:10
Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy
Published on: June 18, 2020
20.7K
Smaller Diameter and Adjustable Diameter Transjugular Intrahepatic Portosystemic Shunts
Aakash N Gupta1, Daniel Y Sze1, Diamanto Amanda Rigas1,2
1Division of Interventional Radiology, Department of Radiology, Stanford University School of Medicine, Stanford, California.
Seminars in Interventional Radiology
|May 8, 2023
Summary
Choosing the right transjugular intrahepatic portosystemic shunt (TIPS) diameter is crucial. Smaller TIPS may prevent overshunting complications like hepatic encephalopathy, but careful consideration of undershunting risks is necessary.
Area of Science:
- Interventional Radiology
- Hepatology
- Vascular Surgery
Background:
- Transjugular intrahepatic portosystemic shunt (TIPS) creation is a common procedure for managing complications of portal hypertension.
- Overshunting, leading to hepatic encephalopathy and insufficiency, is a significant complication of TIPS.
- Optimal shunt diameter remains debated to balance overshunting and undershunting risks.
Purpose of the Study:
- To investigate the optimal diameter for TIPS stent-grafts.
- To evaluate outcomes associated with smaller diameter TIPS (<10 mm), underdilated stent-grafts, and variable diameter stent-grafts.
Main Methods:
- Review of outcomes for different TIPS stent-graft diameters.
- Analysis of complications related to shunt size, including overshunting and undershunting.
- Comparison of clinical results for smaller (<10 mm), underdilated, and variable diameter TIPS.
Main Results:
- Smaller diameter TIPS may reduce overshunting complications.
- The risk of undershunting and persistent portal hypertension complications must be considered with smaller shunts.
- Outcomes vary depending on the specific diameter and dilation technique used.
Conclusions:
- Determining the optimal TIPS diameter requires balancing the risks of overshunting and undershunting.
- Further research into specific stent-graft sizes and dilation strategies is needed.
- Individual patient factors may influence the choice of optimal shunt diameter.
