2024
Immunotherapy Initiation at the End of Life in Patients With Metastatic Cancer in the US
Kerekes D, Frey A, Prsic E, Tran T, Clune J, Sznol M, Kluger H, Forman H, Becher R, Olino K, Khan S. Immunotherapy Initiation at the End of Life in Patients With Metastatic Cancer in the US. JAMA Oncology 2024, 10: 342-351. PMID: 38175659, PMCID: PMC10767643, DOI: 10.1001/jamaoncol.2023.6025.Peer-Reviewed Original ResearchNon-small cell lung cancerEnd of lifeMonth of deathImmunotherapy initiationCohort studyMAIN OUTCOMEStage IV non-small cell lung cancerCharlson-Deyo comorbidity indexHigh metastatic burdenInitiation of immunotherapyNational prescribing patternsRisk-adjusted patientsImmune checkpoint inhibitorsRetrospective cohort studyStage IV melanomaPercentage of patientsHigh-volume centersLocation of metastasesLow-volume centersOdds of deathCell lung cancerNational Clinical DatabaseLow-volume facilitiesDrug Administration approvalCheckpoint inhibitors
2023
Role of colectomy in the management of appendiceal tumors: a retrospective cohort study
Marks V, Kerekes D, Butensky S, Ahuja N, Johnson C, Turaga K, Khan S. Role of colectomy in the management of appendiceal tumors: a retrospective cohort study. BMC Gastroenterology 2023, 23: 398. PMID: 37978348, PMCID: PMC10655451, DOI: 10.1186/s12876-023-03019-4.Peer-Reviewed Original ResearchConceptsGoblet cell adenocarcinomaNon-mucinous adenocarcinomaRight hemicolectomyStage 2 diseaseNeuroendocrine neoplasmsTumor typesAppendiceal tumorsMucinous adenocarcinomaAppendiceal goblet cell adenocarcinomaRole of colectomyNational Cancer DatabasePostoperative hospital stayRetrospective cohort studyRisk-adjusted analysisRange of histologiesDifferent tumor typesConclusionsMost patientsHospital stayUnplanned readmissionCohort studySurgical treatmentHistologic typeSurgical outcomesCell adenocarcinomaCancer DatabaseSurgical treatment of stage IV gastroenteropancreatic neuroendocrine carcinoma: Experience and outcomes in the United States
Kerekes D, Frey A, Bakkila B, Kunstman J, Khan S. Surgical treatment of stage IV gastroenteropancreatic neuroendocrine carcinoma: Experience and outcomes in the United States. Journal Of Surgical Oncology 2023, 128: 790-802. PMID: 37435780, DOI: 10.1002/jso.27392.Peer-Reviewed Original ResearchConceptsGastroenteropancreatic neuroendocrine carcinomasGEP-NECSingle-site surgeryOverall survivalSurgical treatmentNeuroendocrine carcinomaMortality reductionSite surgeryPrimary siteNational Cancer DatabaseRetrospective cohort studyPrimary tumor typeSurgical resectionCohort studyAggressive diseaseSurgical interventionSurvival outcomesTreatment optionsCancer DatabaseSurgeryPatientsTumor typesNECStrongest predictorCarcinomaImpact of nonmalignant ascites on outcomes of open inguinal hernia repair in the USA
Kerekes D, Sznol J, Khan S, Becher R. Impact of nonmalignant ascites on outcomes of open inguinal hernia repair in the USA. Hernia 2023, 27: 1497-1506. PMID: 37029887, DOI: 10.1007/s10029-023-02790-3.Peer-Reviewed Original ResearchConceptsOpen inguinal herniorrhaphyOdds of mortalityInguinal hernia repairSerious complicationsInguinal herniorrhaphyNonelective repairElective repairAscites patientsHernia repairSurgeons National Surgical Quality Improvement Program databaseNational Surgical Quality Improvement Program databaseQuality Improvement Program databaseOpen inguinal hernia repairImpact of ascitesNational US databasePrimary end pointImprovement Program databaseRetrospective cohort studyChallenging clinical dilemmaPreoperative ascitesCohort studyComposite outcomeNonelective surgeryPoor outcomeSurgical outcomesHepatopancreatobiliary malignancies: time to treatment matters
Kerekes D, Frey A, Bakkila B, Johnson C, Becher R, Billingsley K, Khan S. Hepatopancreatobiliary malignancies: time to treatment matters. Journal Of Gastrointestinal Oncology 2023, 0: 0-0. PMID: 37201090, PMCID: PMC10186552, DOI: 10.21037/jgo-22-1067.Peer-Reviewed Original ResearchTreatment initiationStage IHPB cancersStage I pancreatic cancerExtrahepatic bile duct cancerKaplan-Meier survival analysisHPB cancer patientsNational Cancer DatabaseRetrospective cohort studyBile duct cancerMedian treatment initiationHepatopancreatobiliary cancersMedian survivalCohort studyDuct cancerOverall survivalHispanic patientsEHBD cancerOncologic careBile ductCox regressionBlack raceCancer patientsDefinitive carePancreatic cancer
2022
Asparagine Metabolism in Tumors Is Linked to Poor Survival in Females with Colorectal Cancer: A Cohort Study
Shen X, Cai Y, Lu L, Huang H, Yan H, Paty PB, Muca E, Ahuja N, Zhang Y, Johnson CH, Khan SA. Asparagine Metabolism in Tumors Is Linked to Poor Survival in Females with Colorectal Cancer: A Cohort Study. Metabolites 2022, 12: 164. PMID: 35208238, PMCID: PMC8875032, DOI: 10.3390/metabo12020164.Peer-Reviewed Original ResearchRecurrence-free survivalOverall survivalColorectal cancer prognosisPoor overall survivalPrimary tumor tissuesTumor metabolomeUnique metabolite profilesCohort studyCRC patientsCRC treatmentFemale patientsPoor prognosisColorectal cancerPrognostic disadvantagePatient outcomesPoor survivalSurgical colectomySex-specific differencesCox proportionalEleven metabolitesUntargeted metabolomics analysisCancer prognosisStage ITumor tissueSignificant sex differences
2020
Association of Treatment Inequity and Ancestry With Pancreatic Ductal Adenocarcinoma Survival
Heller DR, Nicolson NG, Ahuja N, Khan S, Kunstman JW. Association of Treatment Inequity and Ancestry With Pancreatic Ductal Adenocarcinoma Survival. JAMA Surgery 2020, 155: e195047. PMID: 31800002, PMCID: PMC6902102, DOI: 10.1001/jamasurg.2019.5047.Peer-Reviewed Original ResearchConceptsPancreatic ductal adenocarcinomaNational Cancer DatabaseWhite patientsBlack patientsAdvanced diseaseOverall survivalClinical parametersDisease stageCancer DatabaseSurgical proceduresMultivariable Cox proportional hazards regression modelingTreatment inequitiesCox proportional hazards regression modelingPancreatic ductal adenocarcinoma (PDAC) survivalUnadjusted median overall survivalYounger ageProportional hazards regression modelingMedian overall survivalModest survival advantageStage II diseaseNew cancer diagnosesLess chemotherapyResectable cancerCohort studyPrimary outcome