A Prognostic Strategy Based on Stage of Cirrhosis and HVPG to Improve Risk Stratification After Variceal Bleeding.

La Mura, Vincenzo; Garcia-Guix, Marta; Berzigotti, Annalisa; Abraldes, Juan G; García-Pagán, Juan Carlos; Villanueva, Candid; Bosch, Jaime (2020). A Prognostic Strategy Based on Stage of Cirrhosis and HVPG to Improve Risk Stratification After Variceal Bleeding. Hepatology, 72(4), pp. 1353-1365. Wiley Interscience 10.1002/hep.31125

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BACKGROUND AND AIMS

A hepatic venous pressure gradient (HVPG) decrease of 20% or more (or ≤12 mm Hg) indicates a good prognosis during propranolol/nadolol treatment but requires two HVPG measurements. We aimed to simplify the risk stratification after variceal bleeding using clinical data and HVPG.

METHODS

A total of 193 patients with cirrhosis (62% with ascites and/or hepatic encephalopathy [HE]) who were within 7 days of bleeding had their HVPG measured before and at 1-3 months of treatment with propranolol/nadolol plus endoscopic band ligation. The endpoints were rebleeding and rebleeding/transplantation-free survival for 4 years. Another cohort (n = 231) served as the validation set.

RESULTS

During follow-up, 45 patients had variceal bleeding and 61 died. The HVPG responders (n = 71) had lower rebleeding risk (10% vs. 34%, P = 0.001) and better survival than the 122 nonresponders (61% vs. 39%, P = 0.001). Patients with HE (n = 120) had lower survival than patients without HE (40% vs. 63%, P = 0.005). Among the patients with ascites/HE, those with baseline HVPG ≤ 16 mm Hg (n = 16) had a low rebleeding risk (13%). In contrast, among patients with ascites/HE and baseline HVPG > 16 mm Hg, only the HVPG responders (n = 32) had a good prognosis, with lower rebleeding risk and better survival than the nonresponders (n = 72) (respective proportions: 7% vs. 39%, P = 0.018; 56% vs. 30% P = 0.010). These findings allowed us to develop a strategy for risk stratification in which HVPG response was measured only in patients with ascites and/or HE and baseline HVPG > 16 mm Hg. This method reduced the "gray zone" (i.e., high-risk patients who had not died on follow-up) from 46% to 35% and decreased the HVPG measurements required by 42%. The validation cohort confirmed these results.

CONCLUSIONS

Restricting HVPG measurements to patients with ascites/HE and measuring HVPG response only if the patient's baseline HVPG is over 16 mm Hg improves detection of high-risk patients while markedly reducing the number of HVPG measurements required.

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