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Proton Pump Inhibitor Use Is Associated with an Increased Frequency of New or Worsening Hepatic Encephalopathy after Transjugular Intrahepatic Portosystemic Shunt Creation.
Journal of Vascular and Interventional Radiology : JVIR 2019 Februrary
PURPOSE: To determine whether proton pump inhibitor (PPI) use increases the rate of new or worsening hepatic encephalopathy (HE) after transjugular intrahepatic portosystemic shunt (TIPS) creation.
MATERIALS AND METHODS: In this retrospective study, 284 of 365 patients who underwent TIPS creation from January 1, 2005, to December 31, 2016, were analyzed (186 male, mean age 56 y, range 19-84 y). Dates of PPI use and dates of new or worsening HE, defined as hospitalization or escalation in outpatient medical management, were extracted from medical records. Mixed-effects negative binomial regression was used to test for an association between PPI usage and HE.
RESULTS: After TIPS creation, among 168 patients on PPIs chronically, there were 235 episodes of new or worsening HE in 106,101 person-days (0.81/person-year). Among 55 patients never on PPIs, there were 37 episodes in 31,066 person-days (0.43/person-year). Among 61 patients intermittently taking PPIs, there were 78 episodes in 37,710 person-days while on PPIs (0.75/person-year) and 25 episodes in 35,678 person-days while off PPIs (0.26/person-year). In univariate regression, PPI usage was associated with a 3.34-fold increased rate of new or worsening HE (incidence rate ratio [IRR] 3.34; P < .001). In multivariate regression, older age (IRR 1.05; P < .001), male sex (IRR 1.58; P = .023), higher Model for End-Stage Liver Disease score (IRR 1.06; P = .015), previous HE or HE-preventive medication use (IRR 1.51; P = .029), and PPI use (IRR 3.19; P < .001) were significant risk factors. Higher PPI doses were associated with higher rates of HE (IRR 1.16 per 10 mg omeprazole equivalent; P = .046).
CONCLUSIONS: PPI usage is associated with increased rates of new or worsening HE after TIPS creation.
MATERIALS AND METHODS: In this retrospective study, 284 of 365 patients who underwent TIPS creation from January 1, 2005, to December 31, 2016, were analyzed (186 male, mean age 56 y, range 19-84 y). Dates of PPI use and dates of new or worsening HE, defined as hospitalization or escalation in outpatient medical management, were extracted from medical records. Mixed-effects negative binomial regression was used to test for an association between PPI usage and HE.
RESULTS: After TIPS creation, among 168 patients on PPIs chronically, there were 235 episodes of new or worsening HE in 106,101 person-days (0.81/person-year). Among 55 patients never on PPIs, there were 37 episodes in 31,066 person-days (0.43/person-year). Among 61 patients intermittently taking PPIs, there were 78 episodes in 37,710 person-days while on PPIs (0.75/person-year) and 25 episodes in 35,678 person-days while off PPIs (0.26/person-year). In univariate regression, PPI usage was associated with a 3.34-fold increased rate of new or worsening HE (incidence rate ratio [IRR] 3.34; P < .001). In multivariate regression, older age (IRR 1.05; P < .001), male sex (IRR 1.58; P = .023), higher Model for End-Stage Liver Disease score (IRR 1.06; P = .015), previous HE or HE-preventive medication use (IRR 1.51; P = .029), and PPI use (IRR 3.19; P < .001) were significant risk factors. Higher PPI doses were associated with higher rates of HE (IRR 1.16 per 10 mg omeprazole equivalent; P = .046).
CONCLUSIONS: PPI usage is associated with increased rates of new or worsening HE after TIPS creation.
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