2023
Ursodeoxycholic acid is associated with a reduction in SARS‐CoV‐2 infection and reduced severity of COVID‐19 in patients with cirrhosis
John B, Bastaich D, Webb G, Brevini T, Moon A, Ferreira R, Chin A, Kaplan D, Taddei T, Serper M, Mahmud N, Deng Y, Chao H, Sampaziotis F, Dahman B. Ursodeoxycholic acid is associated with a reduction in SARS‐CoV‐2 infection and reduced severity of COVID‐19 in patients with cirrhosis. Journal Of Internal Medicine 2023, 293: 636-647. PMID: 37018129, DOI: 10.1111/joim.13630.Peer-Reviewed Original ResearchConceptsSARS-CoV-2 infectionCritical COVID-19Ursodeoxycholic acidPropensity scoreCOVID-19Severe acute respiratory syndrome coronavirus 2Farnesoid X receptor activityAcute respiratory syndrome coronavirus 2Human lungRespiratory syndrome coronavirus 2COVID-19-related deathsRetrospective cohort studyModerate COVID-19Symptomatic COVID-19Multivariable logistic regressionLarge national cohortSyndrome coronavirus 2Coronavirus disease 2019Angiotensin-converting enzymePotential novel targetUDCA useClinical characteristicsCohort studyVaccination statusCoronavirus 2
2022
Type of Infection Is Associated with Prognosis in Acute-on-Chronic Liver Failure: A National Veterans Health Administration Study
Mahmud N, Reddy KR, Taddei TH, Kaplan DE. Type of Infection Is Associated with Prognosis in Acute-on-Chronic Liver Failure: A National Veterans Health Administration Study. Digestive Diseases And Sciences 2022, 68: 1632-1640. PMID: 36083379, PMCID: PMC9995592, DOI: 10.1007/s10620-022-07680-9.Peer-Reviewed Original ResearchConceptsSpontaneous bacterial peritonitisChronic liver failureShort-term mortalityLiver failureHigh short-term mortalityACLF grade 3Retrospective cohort studyUrinary tract infectionMultivariable logistic regressionVeterans Health AdministrationType of infectionInverse probability treatmentLarge national databaseSource of infectionACLF gradeMSK infectionsCohort studyTract infectionsBacterial peritonitisMusculoskeletal infectionsFrequent precipitantInfectious sourceGrade 3Relative oddsHealth AdministrationComparison of infection‐induced and vaccine‐induced immunity against COVID‐19 in patients with cirrhosis
John BV, Doshi A, Ferreira RD, Taddei TH, Kaplan DE, Spector SA, Deng Y, Bastaich D, Dahman B. Comparison of infection‐induced and vaccine‐induced immunity against COVID‐19 in patients with cirrhosis. Hepatology 2022, 77: 186-196. PMID: 35712794, DOI: 10.1002/hep.32619.Peer-Reviewed Original ResearchConceptsPositive SARS-CoV-2 polymerase chain reactionVaccine-induced immunitySARS-CoV-2 infectionInfection-induced immunityImmunity groupsReduced oddsSARS-CoV-2 polymerase chain reactionCOVID-19Retrospective cohort studyCritical COVID-19Multivariable logistic regressionSARS-CoV-2Unvaccinated participantsUnvaccinated patientsFull vaccinationCohort studyCOVID-19 variantsCommunity prevalencePrevious infectionMRNA vaccinesPolymerase chain reactionUS veteransTreatment weightingCirrhosisPropensity score
2021
Risk Prediction Models for Postoperative Decompensation and Infection in Patients With Cirrhosis: A Veterans Affairs Cohort Study
Mahmud N, Fricker Z, Lewis JD, Taddei TH, Goldberg DS, Kaplan DE. Risk Prediction Models for Postoperative Decompensation and Infection in Patients With Cirrhosis: A Veterans Affairs Cohort Study. Clinical Gastroenterology And Hepatology 2021, 20: e1121-e1134. PMID: 34246794, PMCID: PMC8741885, DOI: 10.1016/j.cgh.2021.06.050.Peer-Reviewed Original ResearchConceptsLiver diseasePostoperative decompensationPostoperative mortalityPostoperative infectionRisk scoreAlcohol-related liver diseaseEnd-stage liver diseaseMayo risk scoreSurgical risk scoresData of patientsMultivariable logistic regressionVeterans Health AdministrationRange of surgeryRisk prediction modelCirrhosis decompensationPugh scoreChild-TurcottePostoperative complicationsCohort studyPostoperative dayRetrospective studyStratify patientsVeteran outcomesDecompensationExcellent calibrationRisk Prediction Models for Post‐Operative Mortality in Patients With Cirrhosis
Mahmud N, Fricker Z, Hubbard RA, Ioannou GN, Lewis JD, Taddei TH, Rothstein KD, Serper M, Goldberg DS, Kaplan DE. Risk Prediction Models for Post‐Operative Mortality in Patients With Cirrhosis. Hepatology 2021, 73: 204-218. PMID: 32939786, PMCID: PMC7902392, DOI: 10.1002/hep.31558.Peer-Reviewed Original ResearchConceptsMayo risk scoreVeterans Affairs Surgical Quality Improvement ProgramEnd-stage liver diseaseLiver diseaseSurgical proceduresMELD-NaPostoperative mortalitySurgical Quality Improvement ProgramLiver disease cohortSurgical risk modelsPost-operative mortalityRetrospective cohort studyFatty liver diseasePreoperative risk stratificationMultivariable logistic regressionU.S. medical centersQuality Improvement ProgramRisk prediction modelPopulation-level dataPugh scoreAnesthesiologists classificationChild-TurcottePreoperative albuminCohort studyPostoperative risk
2020
Models for acute on chronic liver failure development and mortality in a veterans affairs cohort
Xiao KY, Hubbard RA, Kaplan DE, Taddei TH, Goldberg DS, Mahmud N. Models for acute on chronic liver failure development and mortality in a veterans affairs cohort. Hepatology International 2020, 14: 587-596. PMID: 32519219, PMCID: PMC7656856, DOI: 10.1007/s12072-020-10060-y.Peer-Reviewed Original ResearchConceptsACLF mortalityCompensated cirrhosisChronic liver failure developmentEnd-stage liver diseaseHigh short-term mortalityLarge North American cohortDevelopment of ACLFVeterans Affairs cohortAsian Pacific AssociationChronic liver failureEscalation of careNovel risk prediction modelShort-term mortalityMultivariable logistic regressionNorth American cohortRisk prediction modelGood discriminationACLF developmentACLF patientsACLF scoreLiver (APASL) definitionsMELD-sodiumTransplant evaluationRisk patientsCirrhosis patients
2019
Risk prediction scores for acute on chronic liver failure development and mortality
Mahmud N, Hubbard RA, Kaplan DE, Taddei TH, Goldberg DS. Risk prediction scores for acute on chronic liver failure development and mortality. Liver International 2019, 40: 1159-1167. PMID: 31840390, PMCID: PMC7371261, DOI: 10.1111/liv.14328.Peer-Reviewed Original ResearchConceptsShort-term mortalityRisk prediction scoreACLF mortalityACLF scoreLiver diseaseChronic Liver Failure Consortium ACLF scoreChronic liver failure developmentCLIF-C ACLF scoreStable chronic liver diseaseVeterans Health Administration databaseEnd-stage liver diseaseHigh short-term mortalityEarly transplant referralChronic liver failureRetrospective cohort studyEscalation of careChronic liver diseaseUnited States cohortMultivariable logistic regressionNovel risk prediction scorePrediction scoreHealth Administration databaseGood discriminationACLF criteriaIncident cirrhosis