F. Morando

Development and Validation of a Prognostic Score to Predict Mortality in Patients with Acute on Chronic Liver Failure.

BACKGROUND & AIMS Acute-on-chronic liver failure (ACLF) is a frequent syndrome (30% prevalence), characterized by acute decompensation of cirrhosis, organ failure(s) and high short-term mortality. This study develops and validates a specific prognostic score for ACLF patients. METHODS Data from 1349 patients included in the CANONIC study were used. First, a simplified organ function scoring system (CLIF Consortium Organ Failure score, CLIF-C OFs) was developed to diagnose ACLF using data from all patients. Subsequently, in 275 patients with ACLF, CLIF-C OFs and two other independent predictors of mortality (age and white blood cell count) were combined to develop a specific prognostic score for ACLF (CLIF Consortium ACLF score [CLIF-C ACLFs]). A concordance index (C-index) was used to compare the discrimination abilities of CLIF-C ACLF, MELD, MELD-sodium (MELD-Na), and Child-Pugh (CPs) scores. The CLIF-C ACLFs was validated in an external cohort and assessed for sequential use. RESULTS The CLIF-C ACLFs showed a significantly higher predictive accuracy than MELDs, MELD-Nas, and CPs, reducing (19-28%) the corresponding prediction error rates at all main time points after ACLF diagnosis (28, 90, 180, and 365 days) in both the CANONIC and the external validation cohort. CLIF-C ACLFs computed at 48 h, 3-7 days, and 8-15 days after ACLF diagnosis predicted the 28-day mortality significantly better than at diagnosis. CONCLUSIONS The CLIF-C ACLFs at ACLF diagnosis is superior to the MELDs and MELD-Nas in predicting mortality. The CLIF-C ACLFs is a clinically relevant, validated scoring system that can be used sequentially to stratify the risk of mortality in ACLF patients.

Clinical Course of acute-on-chronic liver failure syndrome and effects on prognosis.

Acute‐on‐chronic liver failure (ACLF) is characterized by acute decompensation (AD) of cirrhosis, organ failure(s), and high 28‐day mortality. We investigated whether assessments of patients at specific time points predicted their need for liver transplantation (LT) or the potential futility of their care. We assessed clinical courses of 388 patients who had ACLF at enrollment, from February through September 2011, or during early (28‐day) follow‐up of the prospective multicenter European Chronic Liver Failure (CLIF) ACLF in Cirrhosis study. We assessed ACLF grades at different time points to define disease resolution, improvement, worsening, or steady or fluctuating course. ACLF resolved or improved in 49.2%, had a steady or fluctuating course in 30.4%, and worsened in 20.4%. The 28‐day transplant‐free mortality was low‐to‐moderate (6%‐18%) in patients with nonsevere early course (final no ACLF or ACLF‐1) and high‐to‐very high (42%‐92%) in those with severe early course (final ACLF‐2 or ‐3) independently of initial grades. Independent predictors of course severity were CLIF Consortium ACLF score (CLIF‐C ACLFs) and presence of liver failure (total bilirubin ≥12 mg/dL) at ACLF diagnosis. Eighty‐one percent had their final ACLF grade at 1 week, resulting in accurate prediction of short‐ (28‐day) and mid‐term (90‐day) mortality by ACLF grade at 3‐7 days. Among patients that underwent early LT, 75% survived for at least 1 year. Among patients with ≥4 organ failures, or CLIF‐C ACLFs >64 at days 3‐7 days, and did not undergo LT, mortality was 100% by 28 days. Conclusions: Assessment of ACLF patients at 3‐7 days of the syndrome provides a tool to define the emergency of LT and a rational basis for intensive care discontinuation owing to futility. (Hepatology 2015;62:243‐252)

Evaluation of the Acute Kidney Injury Network criteria in hospitalized patients with cirrhosis and ascites

BACKGROUND & AIMS For several years hepatologists have defined acute renal failure in patients with cirrhosis as an increase in serum creatinine (sCr) ≥ 50% to a final value of sCr>1.5mg/dl (conventional criterion). Recently, the Acute Kidney Injury Network (AKIN) defined acute renal failure as acute kidney injury (AKI) on the basis of an absolute increase in sCr of 0.3mg/dl or a percentage increase in sCr ≥ 50% providing also a staging from 1 to 3. AKIN stage 1 was defined as an increase in sCr ≥ 0.3mg/dl or increase in sCr ≥ 1.5-fold to 2-fold from baseline. AKI diagnosed with the two different criteria was evaluated for the prediction of in-hospital mortality. METHODS Consecutive hospitalized patients with cirrhosis and ascites were included in the study and evaluated for the development of AKI. RESULTS Conventional criterion was found to be more accurate than AKIN criteria in improving the prediction of in-hospital mortality in a model including age and Child-Turcotte-Pugh score. The addition of either progression of AKIN stage or a threshold value for sCr of 1.5mg/dl further improves the value of AKIN criteria in this model. More in detail, patients with AKIN stage 1 and sCr<1.5mg/dl had a lower mortality rate (p=0.03), a lower progression rate (p=0.01), and a higher improvement rate (p=0.025) than patients with AKIN stage 1 and sCr ≥ 1.5mg/dl. CONCLUSIONS Conventional criterion is more accurate than AKIN criteria in the prediction of in-hospital mortality in patients with cirrhosis and ascites. The addition of either the progression of AKIN stage or the cut-off of sCr ≥ 1.5mg/dl to the AKIN criteria improves their prognostic accuracy.

Terlipressin plus albumin versus midodrine and octreotide plus albumin in the treatment of hepatorenal syndrome: A randomized trial

Hepatorenal syndrome (HRS), a serious complication of cirrhosis, is associated with high mortality without treatment. Terlipressin with albumin is effective in the reversal of HRS. Where terlipressin is not available, as in the United States, midodrine and octreotide with albumin are used as an alternative treatment of HRS. The aim was to compare the effectiveness of terlipressin plus albumin versus midodrine and octreotide plus albumin in the treatment of HRS in a randomized controlled trial. Twenty‐seven patients were randomized to receive terlipressin with albumin (TERLI group) and 22 to receive midodrine and octreotide plus albumin (MID/OCT group). The TERLI group received terlipressin by intravenous infusion, initially 3 mg/24 hours, progressively increased to 12 mg/24 hours if there was no response. The MID/OCT group received midodrine orally at an initial dose of 7.5 mg thrice daily, with the dose increased to a maximum of 12.5 mg thrice daily, together with octreotide subcutaneously: initial dose 100 μg thrice daily and up to 200 μg thrice daily. Both groups received albumin intravenously 1 g/kg of body weight on day 1 and 20‐40 g/day thereafter. There was a significantly higher rate of recovery of renal function in the TERLI group (19/27, 70.4%) compared to the MID/OCT group (6/21, 28.6%), P = 0.01. Improvement in renal function and lower baseline Model for End‐Stage Liver Disease score were associated with better survival. Conclusion: Terlipressin plus albumin is significantly more effective than midodrine and octreotide plus albumin in improving renal function in patients with HRS (Hepatology 2015;62:567–574

The empirical antibiotic treatment of nosocomial spontaneous bacterial peritonitis: Results of a randomized, controlled clinical trial

Spontaneous bacterial peritonitis (SBP) is a common, life‐threatening complication of liver cirrhosis. Third‐generation cephalosporins have been considered the first‐line treatment of SBP. In 2014, a panel of experts suggested a broader spectrum antibiotic regimen for nosocomial SBP, according to the high rate of bacteria resistant to third‐generation cephalosporins found in these patients. However, a broader‐spectrum antibiotic regimen has never been compared to third‐generation cephalosporins in the treatment of nosocomial SBP. The aim of our study was to compare meropenem plus daptomycin versus ceftazidime in the treatment of nosocomial SBP. Patients with cirrhosis and nosocomial SBP were randomized to receive meropenem (1 g/8 hours) plus daptomycin (6 mg/kg/day) or ceftazidime (2 g/8 hours). A paracentesis was performed after 48 hours of treatment. A reduction in ascitic fluid neutrophil count <25% of pretreatment value was considered a treatment failure. The primary outcome was the efficacy of treatment defined by the resolution of SBP after 7 days of treatment. Thirty‐two patients were randomized and 31 were analyzed. The combination of meropenem plus daptomycin was significantly more effective than ceftazidime in the treatment of nosocomial SBP (86.7 vs. 25%; P < 0.001). Ninety‐day transplant‐free survival (TFS) was not significantly different between the two groups. In the multivariate analysis, ineffective response to first‐line treatment (hazard ratio [HR]: 20.6; P = 0.01), development of acute kidney injury during hospitalization (HR: 23.2; P = 0.01), and baseline mean arterial pressure (HR: 0.92; P = 0.01) were found to be independent predictors of 90‐day TFS. Conclusion: The combination of meropenem plus daptomycin is more effective than ceftazidime as empirical antibiotic treatment of nosocomial SBP. Efficacy of the empirical antibiotic treatment is a strong predictor of 90‐day survival in patients with nosocomial SBP. (Hepatology 2016;63:1299–1309)

Terlipressin given by continuous intravenous infusion versus intravenous boluses in the treatment of hepatorenal syndrome: A randomized controlled study

In patients with cirrhosis and hepatorenal syndrome (HRS), terlipressin has been used either as continuous intravenous infusion or as intravenous boluses. To date, these two approaches have never been compared. The goal of this study was to compare the administration of terlipressin as continuous intravenous infusion versus intravenous boluses in the treatment of type 1 HRS. Seventy‐eight patients were randomly assigned to receive either continuous intravenous infusion (TERLI‐INF group) at the initial dose of 2 mg/day or intravenous boluses of terlipressin (TERLI‐BOL group) at the initial dose of 0.5 mg every 4 hours. In case of no response, the dose was progressively increased to a final dose of 12 mg/day in both groups. Albumin was given at the same dose in both groups (1 g/kg of body weight at the first day followed by 20‐40 g/day). Complete response was defined by decrease of serum creatinine (sCr) from baseline to a final value ≤133 μmol/L, partial response by a decrease ≥50% of sCr from baseline to a final value >133 μmol/L. The rate of adverse events was lower in the TERLI‐INF group (35.29%) than in the TERLI‐BOL group (62.16%, P < 0.025). The rate of response to treatment, including both complete and partial response, was not significantly different between the two groups (76.47% versus 64.85%; P value not significant). The mean daily effective dose of terlipressin was lower in the TERLI‐INF group than in the TERLI‐BOL group (2.23 ± 0.65 versus 3.51 ± 1.77 mg/day; P < 0.05). Conclusion: Terlipressin given by continuous intravenous infusion is better tolerated than intravenous boluses in the treatment of type 1 HRS. Moreover, it is effective at doses lower than those required for intravenous bolus administration. (Hepatology 2016;63:983–992)

Positive cardiac inotropic effect of albumin infusion in rodents with cirrhosis and ascites: molecular mechanisms

The aim of this study was to evaluate the effect and molecular mechanism of albumin infusion on cardiac contractility in experimental cirrhosis with ascites. Cardiac contractility was recorded ex vivo in rats with cirrhosis and ascites and in control rats after the injection in the caudal vein of albumin, saline, or hydroxyethyl starch (HES). Gene and protein expression of β‐receptors and pathways involved in their intracellular signaling such as Gαi2 protein (Gαi2), adenylate cyclase 3 (Adcy3), protein expression of tumor necrosis factor alpha (TNF‐α) and inducible nitric oxide synthase (iNOS), were evaluated in cardiac tissue in both groups. Phosphorylation and membrane‐translocation of the cytosolic components of nicotinamide adenine dinucleotide phosphate (NAD(P)H)‐oxidase and translocation of nuclear factor kappa B (NF‐κB) were also evaluated. After saline intravenous injection, cardiac contractility was significantly reduced in rats with cirrhosis as compared to control rats (P < 0.01). This was associated with: (1) increased expression of protein Gαi2 (P < 0.05), TNF‐α (P < 0.05), iNOS (P < 0.05); (2) increased NAD(P)H‐oxidase activity (P < 0.05); (3) increased nuclear translocation of NF‐κB (P < 0.05); and (4) lower expression of Adcy 3 (P < 0.05) in cardiac tissue of rats with cirrhosis. After albumin injection cardiac contractility (P < 0.01), protein expression of TNF‐α, iNOS, Gαi2, and Adcy3, NAD(P)H‐oxidase activity and nuclear translocation of NF‐κB in cardiac tissue of rats with cirrhosis were reversed to control levels (P < 0.05). HES injection did not modify cardiac contractility and nuclear translocation of NF‐κB in cardiac tissue of rats with cirrhosis. Conclusion: Albumin exerts a positive cardiac inotropic effect in rats with cirrhosis and ascites counteracting the negative effects of oxidative stress‐ and TNF‐α‐induced activation of NF‐κB‐iNOS pathway and oxidative stress‐induced alteration of β‐receptor signaling. (HEPATOLOGY 2013)

Acute kidney injury and acute-on-chronic liver failure classifications in prognosis assessment of patients with acute decompensation of cirrhosis

Objective Prognostic stratification of patients with cirrhosis is common clinical practice. This study compares the prognostic accuracy (28-day and 90-day transplant-free mortality) of the acute-on-chronic liver failure (ACLF) classification (no ACLF, ACLF grades 1, 2 and 3) with that of acute kidney injury (AKI) classification (no AKI, AKI stages 1, 2 and 3). Design The study was performed in 510 patients with an acute decompensation of cirrhosis previously included in the European Association for the Study of the Liver–Chronic Liver Failure consortium CANONIC study. ACLF was evaluated at enrolment and 48 h after enrolment, and AKI was evaluated at 48 h according to Acute Kidney Injury Network criteria. Results 240 patients (47.1%) met the criteria of ACLF at enrolment, while 98 patients (19.2%) developed AKI. The presence of ACLF and AKI was strongly associated with mortality. 28-day transplant-free mortality and 90-day transplant-free mortality of patients with ACLF (32% and 49.8%, respectively) were significantly higher with respect to those of patients without ACLF (6.2% and 16.4%, respectively; both p<0.001). Corresponding values in patients with and without AKI were 46% and 59%, and 12% and 25.6%, respectively (p<0.0001 for both). ACLF classification was more accurate than AKI classification in predicting 90-day mortality (area under the receiving operating characteristic curve=0.72 vs 0.62; p<0.0001) in the whole series of patients. Moreover, assessment of ACLF classification at 48 h had significantly better prognostic accuracy compared with that of both AKI classification and ACLF classification at enrolment. Conclusions ACLF stratification is more accurate than AKI stratification in the prediction of short-term mortality in patients with acute decompensation of cirrhosis.

Assessment of alcohol consumption in liver transplant candidates and recipients: The best combination of the tools available

The detection of alcohol consumption in liver transplant candidates (LTCs) and liver transplant recipients (LTRs) is required to enable a proper assessment of transplant eligibility and early management of alcohol relapse, respectively. In this clinical setting, urinary ethyl glucuronide (uEtG), the Alcohol Use Disorders Identification Test for Alcohol Consumption (AUDIT‐c), serum ethanol, urinary ethanol, carbohydrate‐deficient transferrin (CDT), and other indirect markers of alcohol consumption were evaluated and compared prospectively in 121 LTCs and LTRs. Alcohol consumption was diagnosed when AUDIT‐c results were positive or it was confirmed by a patients history in response to abnormal results. Alcohol consumption was found in 30.6% of the patients. uEtG was found to be the strongest marker of alcohol consumption (odds ratio = 414.5, P < 0.001) and provided a more accurate prediction rate of alcohol consumption [area under receiving operating characteristic (ROC) curve = 0.94] than CDT (area under ROC curve = 0.63, P < 0.001) and AUDIT‐c (area under ROC curve = 0.73, P < 0.001). The combination of uEtG and AUDIT‐c showed higher accuracy in detecting alcohol consumption in comparison with the combination of CDT and AUDIT‐c (area under ROC curve = 0.98 versus 0.80, P < 0.001). Furthermore, uEtG was the most useful marker for detecting alcohol consumption in patients with negative AUDIT‐c results. In conclusion, the combination of AUDIT‐c and uEtG improves the detection of alcohol consumption in LTCs and LTRs. Therefore, they should be used routinely for these patients. Liver Transpl 20:815–822, 2014.

New ICA criteria for the diagnosis of acute kidney injury in cirrhotic patients: can we use an imputed value of serum creatinine?

The new International Club of Ascites diagnostic criteria to diagnose acute kidney injury at hospital admission suggests the possibility of using a presumed baseline serum creatinine, defined as the last of at least two stable creatinine values during the last 3 months. Nevertheless, the possibility of the lack of such a value still remains. In these patients, the KDIGO criteria suggest to use an inverse application of MDRD equation assuming that baseline glomerular filtration rate is 75 ml/min per 1.73 m2 (imputed baseline creatinine). We tested the accuracy of this approach to detect acute kidney injury at admission in patients with decompensated cirrhosis and creatinine <1.5 mg/dl.