Ron C. Gaba, Janesh Lakhoo
Background and rationale for the study. There is currently no definition of post-transjugular intrahepatic portosystemic shunt (TIPS) liver failure (PTLF), which constitutes a barrier to standardization of TIPS results reporting and limits the ability to compare liver failure incidence across clinical studies. This descriptive study proposes and preliminarily tests the performance of a PTLF definition and grading system. Results. PTLF was defined by ≥ 3-fold bilirubin and/or ≥ 2-fold INR elevation associated with clinical outcomes of prolonged hospitalization/increase in care level (grade 1), TIPS reduction or liver transplantation (grade 2), or death (grade 3) within 30-days of TIPS. PTLF incidence was 20% (grades 1, 2, 3: 10%, 3%, 8%) among 270 TIPS cases, and the scheme identified patients at increased risk for morbidity and mortality with a statistically significant difference in clinical outcomes between PTLF and non-PTLF groups (P<0.0001). Conclusions. In conclusion, the PTLF definition and classification scheme put forth distributes patients into unique risk groups. PTLF grading may thus be useful for standardization of TIPS results reporting.
Key words. Hepatic insufficiency, Classification, Portosystemic shunting