RESUMO
INTRODUCTION AND AIM: Patients with acute on chronic liver failure (ACLF) have abnormal conventional coagulation tests- platelet count and international normalized ratio (INR). Thromboelastography (TEG) is a rapid, point-of-care assay, more comprehensive than platelet count and INR as it assesses for platelet adequacy (number and function), coagulation factors and clot retraction. The aim of the study was to evaluate the TEG parameters in patients with ACLF, chronic liver disease having acute decompensation (AD) and healthy subjects (HC). MATERIAL AND METHODS: TEG parameters were assessed in patients with ACLF and AD within 24 h of admission. Consecutive patients were included in the study over 12 months. Healthy subjects were recruited as controls. RESULTS: 179 patients were included- 68 ACLF, 53 AD and 58 HC. The mean values of INR in ACLF, AD and HC groups were 2.9 ± 1.4, 1.6 ± 0.4 and 1.1 ± 0.2; P < 0.001. Among TEG parameters - maximum amplitude (MA) was low in ACLF and AD patients as compared with HC (53.8 ± 15, 58.3 ± 13.9 mm and 67.2 ± 12.1 mm, respectively; P < 0.001). Lysis at 30 min (LY30) was high in ACLF patients, as compared to AD and HC (8.6 ± 14.1%, 5.0 ± 9.5% and 4.9 ± 9.8%, respectively; P = 0.060). There were no differences in r time, k time, and alpha angle between groups; normal in >90% patients. There was no difference in TEG parameters between different ACLF grades, whereas CCTs were more deranged with increasing grades of ACLF. CONCLUSION: Despite abnormal conventional coagulation tests, TEG parameters in ACLF patients are essentially normal, except reduced maximum amplitude. Future studies are needed to explore the utility of TEG in clinical management of ACLF patients.
Assuntos
Insuficiência Hepática Crônica Agudizada/diagnóstico por imagem , Insuficiência Hepática Crônica Agudizada/patologia , Tromboelastografia/métodos , Insuficiência Hepática Crônica Agudizada/mortalidade , Adulto , Idoso , Análise de Variância , Coagulação Sanguínea/fisiologia , Estudos de Casos e Controles , Estudos de Coortes , Intervalo Livre de Doença , Feminino , Humanos , Índia , Coeficiente Internacional Normatizado/métodos , Masculino , Pessoa de Meia-Idade , Contagem de Plaquetas , Prognóstico , Valores de Referência , Medição de Risco , Índice de Gravidade de Doença , Taxa de SobrevidaRESUMO
BACKGROUND/AIMS: India is hyper-endemic for hepatitis E virus (HEV). HEV infection in cirrhosis may cause high mortality. Prospective study evaluating HEV infection in cirrhotics is scarce. METHODS: Consecutive patients with cirrhosis and healthy controls were included. Cirrhotics were categorized to 3 groups, (Group I - rapid decompensation, Group II - chronically decompensated, Group III - cirrhotics without decompensation). Sera from cirrhotics and controls were tested for HEV-RNA (RT-PCR). HEV-RNA positivity among cirrhotics and controls was compared. Natural course and mortality rate between HEV infected and non-infected cirrhotics were assessed during a 12-month follow-up. RESULTS: 107 cirrhotics and 200 controls were included. 30 (28%) cirrhotics and 9 (4.5%) controls had detectable HEV-RNA (p<0.001). HEV- RNA positivity among Group I (n=42), II (n=32) and III (n=33) cirrhotics was 21 (50%), 6 (19%) and 3 (10%), respectively (p=0.002). 70% (21/30) with HEV infection and 27% (21/77) without it had rapid decompensation (p=0.001). Mortality between HEV infected and non-infected cirrhotics at 4 weeks (43% vs. 22%, p=0.001) and 12 month (70% vs. 30%, p=0.001) was different. Multivariate analysis identified HEV infection, Child-Pugh's score, renal failure, and sepsis as independent factors for mortality. CONCLUSIONS: In India, cirrhotics were prone to HEV infection, which was associated with rapid decompensation and death.