Background
Point‐of‐care echocardiography (POC‐Echo) is an essential intensive care hemodynamic monitoring tool.
Aims
To assess POC‐Echo parameters [i.e., cardiac index (CI), systemic vascular resistance index (SVRI) and cirrhotic cardiomyopathy (CCM) markers] and serum biomarkers in predicting circulatory failure (need for vasopressors) and mortality in patients with acute‐on‐chronic liver failure (ACLF) having sepsis‐induced hypotension.
Methods
We performed serial POC‐Echo within 6 hours (h) of presentation and subsequently at 24, 48 and 72 h in patients with ACLF and sepsis‐induced hypotension admitted to our liver intensive care unit. Clinical data, POC‐Echo data and serum biomarkers were collected prospectively.
Results
We enrolled 120 patients [59% men, aged 49 ± 12 years, 56% alcohol‐related disease and median MELDNa of 30 (27–32)], of whom 68 (56.6%) had circulatory failure, with overall mortality of 60%. CCM was present in 52.5%. The predictors of circulatory failure were CI (aHR −1.5; p = 0.021), N‐terminal brain natriuretic peptide (aHR −1.1; p = 0.007) and CCM markers; e′ septal mitral velocity (aHR −0.5; p = 0.039) and E/e′ ratio (aHR −1.2; p = 0.045). Reduction in CI by 20% and SVRI by 15% at 72 h predicted mortality with a sensitivity of 84% and 72%, and specificity 76% and 65%, respectively (p < 0.001). The MELD‐CCM model and CLIF‐CCM model were computed as MELDNa + 1.815 × E/e′ (septal) + 0.402 × e′ (septal) and CLIF‐C ACLF + 1.815 × E/e′ (septal) + 0.402 × e′ (septal), respectively, based on multivariable logistic regression. Both scores outperformed MELDNa (z‐score = −2.073, p = 0.038) and CLIF‐C ACLF score (z score = −2.683, p‐value = 0.007), respectively, in predicting 90‐day mortality.
Conclusion
POC‐Echo measurements such as CCM markers (E/e' and e' velocity) and change in CI reliably predict circulatory failure and mortality in ACLF with severe sepsis. CCM markers significantly enhanced the CLIF‐C ACLF and MELDNa predictive performance.