{Reference Type}: Multicenter Study
{Title}: The impact of right atrial pressure on outcomes in patients undergoing TIPS, an ALTA group study.
{Author}: Bommena S;Mahmud N;Boike JR;Thornburg BG;Kolli KP;Lai JC;German M;Morelli G;Spengler E;Said A;Desai AP;Junna S;Paul S;Frenette C;Verna EC;Goel A;Gregory D;Padilla C;VanWagner LB;Fallon MB; ;
{Journal}: Hepatology
{Volume}: 77
{Issue}: 6
{Year}: 06 2023 1
{Factor}: 17.298
{DOI}: 10.1097/HEP.0000000000000283
{Abstract}: Single-center studies in patients undergoing TIPS suggest that elevated right atrial pressure (RAP) may influence survival. We assessed the impact of pre-TIPS RAP on outcomes using the Advancing Liver Therapeutic Approaches (ALTA) database.<BR>Total 883 patients in ALTA multicenter TIPS database from 2010 to 2015 from 9 centers with measured pre-TIPS RAP were included. Primary outcome was mortality. Secondary outcomes were 48-hour post-TIPS complications, post-TIPS portal hypertension complications, and post-TIPS inpatient admission for heart failure. Adjusted Cox Proportional hazards and competing risk model with liver transplant as a competing risk were used to assess RAP association with mortality. Restricted cubic splines were used to model nonlinear relationship. Logistic regression was used to assess RAP association with secondary outcomes.Pre-TIPS RAP was independently associated with overall mortality (subdistribution HR: 1.04 per mm Hg, 95% CI, 1.01, 1.08, p =0.009) and composite 48-hour complications. RAP was a predictor of TIPS dysfunction with increased odds of post-90-day paracentesis in outpatient TIPS, hospital admissions for renal dysfunction, and heart failure. Pre-TIPS RAP was positively associated with model for end-stage liver disease, body mass index, Native American and Black race, and lower platelets.<BR>Pre-TIPS RAP is an independent risk factor for overall mortality after TIPS insertion. Higher pre-TIPS RAP increased the odds of early complications and overall portal hypertensive complications as potential mechanisms for the mortality impact.