Early Dynamics of Portal Pressure Gradient After TIPS Insertion Predict Mortality

Area of Science:

• Hepatology
• Interventional Radiology
• Cardiovascular Physiology

Background:

• Transjugular intrahepatic portosystemic shunt (TIPS) placement improves outcomes for patients with refractory ascites and variceal hemorrhage.
• Current survival prediction relies on pre-TIPS factors, with limited data on early post-procedure hemodynamic changes.
• Refining post-TIPS management requires understanding the impact of early hemodynamic shifts on survival.

Purpose of the Study:

• To evaluate the influence of early hemodynamic changes after TIPS placement on patient survival.
• To identify early indicators for refining post-TIPS patient management.
• To assess the predictive value of the change in portal pressure gradient (ΔPPG) on survival.

Main Methods:

• A prospective, bicentric study included 105 patients undergoing TIPS placement.
• Portal pressure gradient (PPG) was measured at TIPS insertion (PPG0) and 24 hours later (PPG24h).
• The change in portal pressure gradient (ΔPPG = PPG24h - PPG0) was calculated, and survival analyses were performed.

Main Results:

• Patients with a lack of increased ΔPPG demonstrated significantly poorer 90-day and 1-year survival rates compared to those with increased ΔPPG.
• This finding remained independent of established prognostic scores like MELD, Child-Pugh, and the Freiburg index of post-TIPS survival (FIPS).
• Within the high-risk group (lack of ΔPPG increase), elevated bilirubin levels (>25 μmol/L) further stratified survival outcomes.

Conclusions:

• A lack of increased ΔPPG 24 hours post-TIPS insertion identifies a high-risk patient cohort with diminished survival.
• Incorporating early post-TIPS PPG measurements (ΔPPG) into clinical practice can facilitate early identification of at-risk patients.
• This approach allows for tailored post-TIPS management strategies to improve patient outcomes.