Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver · 2020
Normalization of serum immunoglobulin G levels is associated with improved transplant-free survival in patients with autoimmune hepatitis.
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Gerussi Alessio, Halliday Neil, Saffioti Francesca, Bernasconi Davide Paolo, Roccarina Davide, Marshall Aileen, Thorburn Douglas
Аннотация
BACKGROUND: There is limited evidence linking achievement of biochemical response with outcomes in Autoimmune Hepatitis (AIH), and it is unclear whether normalization of serum immunoglobulin G (IgG) levels influences prognosis.
AIMS: We aimed to investigate factors associated with death or liver transplantation in patients affected by AIH.
METHODS: We undertook a retrospective analysis of all AIH patients attending a tertiary liver unit since 1980. Patients not meeting established diagnostic criteria for AIH or with a follow-up shorter than 18 months were excluded.
RESULTS: 107 patients meeting inclusion criteria were included in the study. Mean age at diagnosis was 44 years, 29 patients (27.1%) had cirrhosis at baseline. Median follow-up was 79 months, and 70 patients (79.5%) reached biochemical response. Biochemical response was associated with reduced hazard of liver transplant or death (HR 0.07, 95% CI 0.01-0.46), whereas cirrhosis at diagnosis was an independent predictor of liver transplantation or death (Hazard ratio (HR) 11.8, 95%, confidence interval (CI) 1.18-117.4). Lack of normalization of serum IgG levels was associated with reduced 5-year transplant-free survival (95% in patients normalizing, compared to 86%, p = 0.02).
CONCLUSION: Normalization of serum IgG levels alone translates in better transplant-free survival in patients with AIH and should be a treatment target along with transaminases.
AIMS: We aimed to investigate factors associated with death or liver transplantation in patients affected by AIH.
METHODS: We undertook a retrospective analysis of all AIH patients attending a tertiary liver unit since 1980. Patients not meeting established diagnostic criteria for AIH or with a follow-up shorter than 18 months were excluded.
RESULTS: 107 patients meeting inclusion criteria were included in the study. Mean age at diagnosis was 44 years, 29 patients (27.1%) had cirrhosis at baseline. Median follow-up was 79 months, and 70 patients (79.5%) reached biochemical response. Biochemical response was associated with reduced hazard of liver transplant or death (HR 0.07, 95% CI 0.01-0.46), whereas cirrhosis at diagnosis was an independent predictor of liver transplantation or death (Hazard ratio (HR) 11.8, 95%, confidence interval (CI) 1.18-117.4). Lack of normalization of serum IgG levels was associated with reduced 5-year transplant-free survival (95% in patients normalizing, compared to 86%, p = 0.02).
CONCLUSION: Normalization of serum IgG levels alone translates in better transplant-free survival in patients with AIH and should be a treatment target along with transaminases.