End-procedural adherence to recommended hemodynamic targets does not improve the outcome of elective TIPS in patients with cirrhosis

BACKGROUND AND AIMS: In clinical practice, the reduction of portocaval pressure gradient (PCPG) following TIPS does not always meet the recommendation of current guidance. We evaluated the impact of different degrees of PCPG reduction, measured at the end of an elective TIPS, on ascites control, recurrence of portal hypertension-related bleeding (PHRB), and survival. APPROACH AND RESULTS: Patients with cirrhosis receiving TIPS for refractory ascites (RA) or for the secondary prophylaxis of PHRB were consecutively enrolled. Reduction in PCPG was defined as inadequate hemodynamic response (IHR) in patients not achieving a PCPG <12 mm Hg for both secondary prophylaxis of PHRB and RA, or a reduction of at least 50% only for PHRB. Four hundred fifteen patients were analyzed. An adequate hemodynamic response (AHR) was achieved in 66%. Fifty percent of patients received an under-dilated (≤7 mm) endoprosthesis. No significant differences between patients with IHR and AHR were observed in rebleeding rate and ascites control, while overt HE was higher in AHR. Regardless of TIPS indication, survival was not significantly different between IHR and AHR, while advanced age and liver function before TIPS were significantly associated with a higher cumulative incidence of liver-related death. Notably, in patients with RA the cumulative incidence of liver-related mortality was higher when AHR was defined as a post-TIPS PCPG <12 mm Hg or a reduction ≥50%. CONCLUSIONS: AHR measured at the end of an elective TIPS may not be essential to define the eventual outcome, while a marked drop in PCPG could negatively affect the prognosis of patients with RA.