Acute hemodynamic response to propranolol predicts bleeding and nonbleeding decompensation in patients with cirrhosis

Carvedilol vs. propranolol for the prevention of decompensation and mortality in patients with compensated and decompensated cirrhosis

BACKGROUND & AIMS

Data on the effectiveness of classical non-selective beta-blockers (cNSBBs, i.e., propranolol and nadolol) vs. carvedilol in patients with cirrhosis are scarce. In the present study, we aimed to compare their potential for preventing decompensation and mortality in patients with compensated and decompensated cirrhosis.

METHODS

We performed a multicenter retrospective study including patients with compensated and decompensated cirrhosis with clinically significant portal hypertension, undergoing measurement of hepatic venous pressure gradient (HVPG) to assess acute hemodynamic response to intravenous propranolol (i.e., HVPG decrease ≥10% from baseline value) prior to primary prophylaxis for variceal bleeding. Outcomes were adjusted using inverse probability of treatment weighting in a competitive risk framework.

RESULTS

A total of 540 patients were included, 256 with compensated (cNSBBs n = 111; carvedilol n = 145) and 284 with decompensated (cNSBBs n = 134; carvedilol n = 150) cirrhosis. Median follow-up was 36.3 (IQR 16.9-61.0) and 30.7 (IQR 13.1-52.2) months, respectively. After covariate balancing, compared to cNSBBs, carvedilol significantly reduced the risk of a first decompensation in compensated patients (subdistribution hazard ratio 0.61; 95% CI 0.41-0.92; p = 0.019) and a combined endpoint of further decompensation/death in decompensated patients (subdistribution hazard ratio 0.57; 95% CI 0.42-0.77; p <0.0001). A second HVPG was conducted on 176 (68.8%, compensated) and 177 (62.3%, decompensated) patients. Acute non-responders, both compensated (11.1% vs. 29.4%; p = 0.422) and decompensated (16.0% vs. 43.6%: p = 0.0247) patients, showed a higher likelihood of achieving a chronic hemodynamic response with carvedilol. The safety profile of each type of NSBB was comparable in both cohorts.

CONCLUSIONS

Our data endorse the current recommendation favoring the use of carvedilol for the prevention of a first decompensation of cirrhosis and suggest extending the recommendation to patients with decompensated cirrhosis without recurrent or refractory ascites.

IMPACT AND IMPLICATIONS

This study addresses a gap in the comparative effectiveness of classical non-selective beta-blockers (e.g., propranolol and nadolol) vs. carvedilol in managing cirrhosis in both compensated and decompensated stages. Our results support the preferential use of carvedilol in both settings due to its superior efficacy in reducing first and further decompensation. However, owing to the retrospective nature of the study and inherent selection biases, we advise against broadly applying these findings to patients with decompensated cirrhosis who exhibit signs of circulatory dysfunction or recurrent/refractory ascites.

Hepatic immune regulation and sex disparities

Chronic liver disease is a major cause of morbidity and mortality worldwide. Epidemiology, clinical phenotype and response to therapies for gastrointestinal and liver diseases are commonly different between women and men due to sex-specific hormonal, genetic and immune-related factors. The hepatic immune system has unique regulatory functions that promote the induction of intrahepatic tolerance, which is key for maintaining liver health and homeostasis. In liver diseases, hepatic immune alterations are increasingly recognized as a main cofactor responsible for the development and progression of chronic liver injury and fibrosis. In this Review, we discuss the basic mechanisms of sex disparity in hepatic immune regulation and how these mechanisms influence and modify the development of autoimmune liver diseases, genetic liver diseases, portal hypertension and inflammation in chronic liver disease. Alterations in gut microbiota and their crosstalk with the hepatic immune system might affect the progression of liver disease in a sex-specific manner, creating potential opportunities for novel diagnostic and therapeutic approaches to be evaluated in clinical trials. Finally, we identify and propose areas for future basic, translational and clinical research that will advance our understanding of sex disparities in hepatic immunity and liver disease.

Decreased platelet activation predicts hepatic decompensation and mortality in patients with cirrhosis

BACKGROUND AND AIMS

Patients with cirrhosis show alterations in primary hemostasis, yet prognostic implications of changes in platelet activation remain controversial, and assay validity is often limited by thrombocytopenia. We aimed to study the prognostic role of platelet activation in cirrhosis, focusing on bleeding/thromboembolic events, decompensation, and mortality.

APPROACH AND RESULTS

We prospectively included 107 patients with cirrhosis undergoing a same-day hepatic venous pressure gradient (HVPG) and platelet activation measurement. Platelet activation was assessed using flow cytometry after protease-activated receptor (PAR)-1, PAR-4, or epinephrine stimulation. Over a follow-up of 25.3 (IQR: 15.7-31.2) months, first/further decompensation occurred in 29 patients and 17 died. More pronounced platelet activation was associated with an improved prognosis, even after adjusting for systemic inflammation, HVPG, and disease severity. Specifically, higher PAR-4-inducible platelet activation was independently linked to a lower decompensation risk [adjusted HR per 100 MFI (median fluorescence intensity): 0.95 (95% CI: 0.90-0.99); p =0.036] and higher PAR-1-inducible platelet activation was independently linked to longer survival [adjusted HR per 100 MFI: 0.93 (95% CI: 0.87-0.99); p =0.040]. Thromboembolic events occurred in eight patients (75% nontumoral portal vein thrombosis [PVT]). Higher epinephrine-inducible platelet activation was associated with an increased risk of thrombosis [HR per 10 MFI: 1.07 (95% CI: 1.02-1.12); p =0.007] and PVT [HR per 10 MFI: 1.08 (95% CI: 1.02-1.14); p =0.004]. In contrast, of the 11 major bleedings that occurred, 9 were portal hypertension related, and HVPG thus emerged as the primary risk factor.

CONCLUSIONS

Preserved PAR-1- and PAR-4-inducible platelet activation was linked to a lower risk of decompensation and death. In contrast, higher epinephrine-inducible platelet activation was a risk factor for thromboembolism and PVT.

Esophageal Varices as an Independent Predictor of Fatal Outcomes after Balloon-Occluded Retrograde Transvenous Obliteration in Patients with Hepatic Encephalopathy

INTRODUCTION

The objective of this study was to evaluate esophageal varices (EVs) as predictors of poor prognosis with low tolerability after balloon-occluded retrograde transvenous obliteration (BRTO) in patients with overt hepatic encephalopathy (HE).

METHODS

This study retrospectively enrolled 107 patients who underwent BRTO for uncontrollable overt HE. The enrolled patients were divided into two groups based on the presence of EVs using propensity matching. The present study assessed the technical success rate and safety of BRTO in both the groups. Further, the event-free survival, HE-free survival, and the overall survival (OS) were compared between the two groups. Event-free survival was defined as the time period during which the patients did not developed complications related to portal hypertension, including EVs, hepatic ascites, and portal vein thrombosis.

RESULTS

After propensity matching, the EV and non-EV groups had 37 and 36 patients, respectively. Only 1 patient experienced an unsuccessful procedure in the EV group. Procedure-related adverse events in the EV group and non-EV group occurred in 11 and 7 patients, respectively (p = 0.417). The event-free survival after BRTO in the EV and non-EV group were 1,283 (95% CI: 798-1,767) days and 2,257 (1,722-2,792) days, respectively. Event-free survival was significantly worse in the EV group than in the non-EV group (p = 0.014). Furthermore, the EV group experienced worse OS than the non-EV group (p = 0.001 and p < 0.001, respectively).

CONCLUSIONS

The presence of EVs could potentially be associated with a higher risk of adverse outcomes or mortality after BRTO treatment in individuals with HE.

Risk factors and predictors of recurrent variceal bleeding in cirrhotic patients awaiting transplantation

Objective: to identify the risk factors and predictors of recurrent variceal hemorrhage in cirrhotic patients awaiting liver transplantation (LT).

Materials and methods. A comparative retrospective study was conducted in 51 patients with decompensated cirrhosis, who were on the waiting list for LT. Demographic, clinical and laboratory parameters, MELD-Na score, Child–Turcotte–Pugh score, hepatic encephalopathy grade, ascites grade, class of varicose veins, number of consecutive variceal ligations, as well as manometric study with calculation of intrahe- patic venous pressure gradient index in groups of patients with (n = 39) and without recurrent bleeding (n = 12) were analyzed. The proportions of patients in different groups were compared by the Kaplan–Meier method with determination of the logarithmic test (Log-Rank). The accumulated risks in the compared groups were estimated using the mathematical model of proportional hazards (Cox regression) in univariate and multivariate analysis.

Results. Within 60 months from the beginning of follow-up and simultaneous prophylaxis by combination of non-selective beta-blockers and endoscopic variceal ligation (EVL), 39 out of 51 patients (75.6%) developed recurrent bleeding. Analysis revealed significant differences (risk factors for recurrent bleeding): creatinine le- vels, MELD-Na score, hepatic encephalopathy grade, mean hepatic venous pressure gradient (HVPG) and its level >14 mmHg. By the Kaplan–Meier method with the Log-Rank test, it was established that the proportion of patients without recurrent bleeding was significantly higher in the group of patients with HVPG ≤14 mmHg than in the group with HVPG >14 mmHg (p = 0.027).

Conclusion. The main independent predictor of variceal rebleeding is HVPG >14 mm Hg, which increases the risk by 3.837 times if the gradient value is changed by 1 mm. The second independent predictor is higher hepatic encephalopathy grade: if the grade increases by one, the risk of recurrent hemorrhage increases 1.8 times.

Azygoportal disconnection or a combination of non-selective beta-blockers and endoscopic variceal ligation to prevent recurrent bleeding in patients with cirrhosis awaiting transplantation

Objective: to compare the efficacy of azygoportal disconnection (APD) surgery and a combination between endoscopic variceal ligation (EVL) and non-selective beta-blockers (NSBBs) in the prevention of recurrent variceal bleeding (RVB). To compare the incidence of gastric variceal bleeding (GVB) after these manipulations in patients with decompensated cirrhosis waitlisted for liver transplantation (LTx).

Materials and methods. Patients with decompensated cirrhosis underwent RVB prophylaxis by APD surgery or by a combination of EVL and NSBBs.

Results. There were no significant differences in clinical, laboratory, demographic parameters, MELD-Na and Child–Turcotte–Pugh (CTP) scores, and frequencies of medium- and large-sized varicose veins among subgroups of patients with different RVB prophylaxis methods Patients with decompensated cirrhosis who underwent APD surgery did not experience any RVB episodes during the LTx waiting period, which lasted two years from the start of bleeding prophylaxis. In the same period, RVB occurred in 100% of cases in the EVL plus NSBBs group. Using the Kaplan–Meier method with the Log-Rank test, a significant difference (p = 0.0001) was found between the proportions of non-RVB patients in the APD and EVL + NSBBs groups. In the meantime, 48.1% of patients who had APD surgery developed GVB, while 100% of cases in EVL + NSBBs group did not. The Kaplan–Meier method with the Log-Rank test revealed a significant difference (p = 0.0001) between the proportion of non-GVB patients in EVL + NSBBs and APD groups.

Transjugular intrahepatic portosystemic shunt or a combination of nonselective beta blockers and endoscopic variceal ligation for prophylaxis of bleeding in waitlisted cirrhotic patients

Objective: to substantiate the choice of an optimal method of preventing and reducing the risk of variceal bleeding (VB) and cardia in patients with decompensated cirrhosis who have been enlisted for liver transplantation (LT).

Materials and methods. Patients with diuretic-resistant and diuretic-responsive ascites underwent prophylaxis for recurrent bleeding via transjugular intrahepatic portosystemic shunt (TIPS) or a combination of endoscopic variceal ligation (EVL) and nonselective beta-blockers (NSBB).

Results. Leukocyte counts, Na levels, and Child–Turcotte–Pugh (CTP) liver disease class in patients with diuretic-resistant ascites had significant differences when comparing individuals who received EVL + NSBB or underwent TIPS. In diuretic-responsive patients, there were significant differences for blood platelet count, albumin and Na levels, and CTP class when comparing EVL + NSBB and TIPS groups. In diuretic-resistant patients, incidence of grade 2 varices in EVL + NSBB group was significantly higher than in TIPS. Incidence of grade 3 varices was significantly higher in TIPS patients than in EVL + NSBB cohort. In diuretic-responsive patients, incidence of grade 2 and 3 varices had no significant differences when comparing these indicators in both groups. The proportion of patients with CTP class B was significantly higher both in diuretic-resistant and diuretic-responsive patients with various methods of rebleeding prophylaxis. The proportions of CTP class C patients with both forms of ascites were significantly higher in EVL + NSBB group than in TIPS. During the LT wait period within 2 years from the start of bleeding prophylaxis in diuretic-resistant patients, 78.4% of patients who underwent TIPS implantation developed recurrent bleeding, 100% of EVL + NSBB group within the same time frame, developed recurrent bleeding. Using the Kaplan–Meier estimate with the Log-Rank test, we were able to establish that there is a significant difference between the proportions of patients with recurrent VB in EVL + NSBB or TIPS groups with both forms of ascites.

Diabetes impairs the haemodynamic response to non-selective betablockers in compensated cirrhosis and predisposes to hepatic decompensation

BACKGROUND

Non-selective betablockers (NSBBs) reduce the risk of hepatic decompensation in patients with compensated advanced chronic liver disease (cACLD). Metabolic co-morbidities (MetC) are increasingly observed in cACLD patients.

AIMS

To investigate the impact of MetC on the haemodynamic effects of NSBB and hepatic decompensation in cACLD.

METHODS

cACLD patients undergoing paired hepatic venous pressure gradient (HVPG) measurements before/under NSBB therapy were retrospectively considered for this study. We recorded baseline characteristics on MetC (obesity, dyslipidaemia and diabetes), as well as hepatic decompensation and liver-related mortality during follow-up.

RESULTS

We included 92 patients (Child-A n = 80, 87%; Child-B n = 12, 13%). MetC were found in 34 (37%) patients: 19 (20.7%) with obesity, 14 (15.2%) with dyslipidaemia and 23 (34.8%) with diabetes. The median baseline HVPG of 18 (IQR:15-21) mmHg decreased to 15 (IQR:9-12) mmHg under NSBB. HVPG-response (decrease ≥10% or to ≤12 mmHg) was achieved in 60 (65.2.%) patients. Patients with diabetes (OR: 0.35, p = 0.021) and higher BMI (OR: 0.89 per kg/m2 , p = 0.031) were less likely to achieve HVPG-response. During a median follow-up of 2.3 (0.5-4.2) years, 18 (19.5%) patients experienced hepatic decompensation. Child-B (adjusted subdistribution hazard ratio, aSHR: 4.3 [95% CI:1.5-12.2], p = 0.006), HVPG-response (aSHR: 0.3 [95% CI:0.1-0.9], p = 0.037) and diabetes (aSHR: 2.8 [95% CI:1.1-7.2], p = 0.036) were independently associated with hepatic decompensation.

CONCLUSIONS

In patients with cACLD, diabetes and a higher BMI impair the HVPG-response to NSBB. Furthermore, diabetes-independently from Child B and lack of HVPG-response-increases the risk of hepatic decompensation.

Austrian consensus on the diagnosis and management of portal hypertension in advanced chronic liver disease (Billroth IV)

The Billroth IV consensus was developed during a consensus meeting of the Austrian Society of Gastroenterology and Hepatology (ÖGGH) and the Austrian Society of Interventional Radiology (ÖGIR) held on the 26th of November 2022 in Vienna.Based on international recommendations and considering recent landmark studies, the Billroth IV consensus provides guidance regarding the diagnosis and management of portal hypertension in advanced chronic liver disease.