2023
Outcomes on an inpatient oncology service after the introduction of hospitalist comanagement
Morris J, Rothberg BE, Prsic E, Parker N, Weber U, Gombos E, Kottarathara M, Billingsley K, Adelson K. Outcomes on an inpatient oncology service after the introduction of hospitalist comanagement. Journal Of Hospital Medicine 2023, 18: 391-397. PMID: 36891947, DOI: 10.1002/jhm.13071.Peer-Reviewed Original ResearchMeSH KeywordsHospitalistsHospitalizationHumansInpatientsLength of StayPatient ReadmissionRetrospective StudiesConceptsLength of stayInpatient oncology serviceSmilow Cancer HospitalSeverity of illnessOncology servicesOncologists' experiencesReadmission ratesEarly dischargeHospitalist comanagementAverage LOSTime of dischargeMean discharge timeEarly discharge ratesImpact of hospitalistsRace/ethnicityDischarge dispositionMultiple admissionsCancer HospitalMAIN OUTCOMEStudy durationPatient volumeCancer typesStudy periodHospitalistsOutcomes
2022
Hepatectomy is associated with improved oncologic outcomes in recurrent colorectal liver metastases: A propensity-matched analysis
Sutton T, Wong L, Walker B, Dewey E, Eil R, Lopez C, Kardosh A, Chen E, Rocha F, Billingsley K, Mayo S. Hepatectomy is associated with improved oncologic outcomes in recurrent colorectal liver metastases: A propensity-matched analysis. Surgery 2022, 173: 1314-1321. PMID: 36435651, DOI: 10.1016/j.surg.2022.10.019.Peer-Reviewed Original ResearchMeSH KeywordsCohort StudiesColorectal NeoplasmsHepatectomyHumansLiver NeoplasmsNeoplasm Recurrence, LocalRetrospective StudiesConceptsColorectal liver metastasesPost-recurrence overall survivalRepeat hepatic resectionRecurrent colorectal liver metastasesHepatic resectionLiver metastasesSystemic treatmentOverall survivalIntrahepatic recurrenceOncologic outcomesSystemic therapyMedian post-recurrence overall survivalRetrospective single-institution cohort studySingle-institution cohort studyCurative-intent hepatectomyImproved oncologic outcomesPerioperative systemic therapyRelevant clinicopathologic variablesSignificant clinicopathologic differencesPropensity-matched analysisRole of resectionCox proportional hazardsLiver recurrencePerioperative chemotherapyCohort study
2020
Yttrium-90 Radioembolization for BCLC Stage C Hepatocellular Carcinoma Comparing Child–Pugh A Versus B7 Patients: Are the Outcomes Equivalent?
Zu Q, Schenning RC, Jahangiri Y, Tomozawa Y, Kolbeck KJ, Kaufman JA, Al-Hakim R, Naugler WE, Nabavizadeh N, Kardosh A, Billingsley KG, Mayo SC, Orloff SL, Enestvedt KK, Maynard E, Ahn J, Lhewa D, Farsad K. Yttrium-90 Radioembolization for BCLC Stage C Hepatocellular Carcinoma Comparing Child–Pugh A Versus B7 Patients: Are the Outcomes Equivalent? CardioVascular And Interventional Radiology 2020, 43: 721-731. PMID: 32140840, DOI: 10.1007/s00270-020-02434-4.Peer-Reviewed Original ResearchConceptsC hepatocellular carcinomaChild-Pugh AAdvanced hepatocellular carcinomaOverall survivalHepatocellular carcinomaBCLC stage C hepatocellular carcinomaEastern Cooperative Oncology Group scoreBCLC-C hepatocellular carcinomasMultivariable Cox regression analysisChild-Pugh scoreMedian overall survivalChild-Pugh classKaplan-Meier methodCox regression analysisYttrium-90 RadioembolizationLog-rank testCautious patient selectionSignificant independent predictorsChild-PughHCV infectionResultsMean ageY90 radioembolizationAdditional malignanciesConsecutive patientsIndependent predictorsEffect of Time to Surgery of Colorectal Liver Metastases on Survival
Chen EY, Mayo SC, Sutton T, Kearney MR, Kardosh A, Vaccaro GM, Billingsley KG, Lopez CD. Effect of Time to Surgery of Colorectal Liver Metastases on Survival. Journal Of Gastrointestinal Cancer 2020, 52: 169-176. PMID: 32086781, PMCID: PMC7900034, DOI: 10.1007/s12029-020-00372-5.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsChemotherapy, AdjuvantColorectal NeoplasmsDisease-Free SurvivalFemaleFollow-Up StudiesHepatectomyHumansKaplan-Meier EstimateLiver NeoplasmsMaleMiddle AgedNeoadjuvant TherapyNeoplasm Recurrence, LocalPrognosisRetrospective StudiesTime FactorsTime-to-TreatmentYoung AdultConceptsColorectal liver metastasesLong-term OSPostoperative overall survivalOverall survivalLonger TTSLiver metastasesWorse survivalDiagnosis of CLMLong-term survivorsResultsTwo hundred eightyRisk of recurrenceComprehensive cancer centerHigh disease burdenSpecific primary tumorsShorter TTSPerioperative chemotherapyPostoperative chemotherapyPerioperative treatmentResection marginsCancer CenterMetastasis characteristicsInstitutional databasePrimary tumorDisease burdenSimilar survival
2019
Who Undergoes Cytoreductive Surgery and Perioperative Intraperitoneal Chemotherapy for Appendiceal Cancer? An Analysis of the National Cancer Database
Byrne RM, Gilbert EW, Dewey EN, Herzig DO, Lu KC, Billingsley KG, Deveney KE, Tsikitis VL. Who Undergoes Cytoreductive Surgery and Perioperative Intraperitoneal Chemotherapy for Appendiceal Cancer? An Analysis of the National Cancer Database. Journal Of Surgical Research 2019, 238: 198-206. PMID: 30772678, DOI: 10.1016/j.jss.2019.01.039.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAntineoplastic Combined Chemotherapy ProtocolsAppendiceal NeoplasmsChemotherapy, AdjuvantChemotherapy, Cancer, Regional PerfusionCytoreduction Surgical ProceduresDatabases, FactualFemaleHumansHyperthermia, InducedKaplan-Meier EstimateMaleMiddle AgedNeoadjuvant TherapyRetrospective StudiesSex FactorsTreatment OutcomeUnited StatesConceptsPerioperative intraperitoneal chemotherapyAppendiceal cancerCytoreductive surgeryIntraperitoneal chemotherapyTreatment modalitiesNational Cancer Database dataMultivariate logistic regression analysisNational Cancer DatabasePatterns of careLow-grade tumorsNon-Hispanic ethnicityLogistic regression analysisMucinous malignanciesSystemic chemotherapyMultimodality treatmentClinical factorsImproved survivalPatient selectionMale sexKaplan-MeierPatient cohortCancer DatabaseWhite raceTreatment groupsChemotherapyHepatic resection of solitary HCC in the elderly: A unique disease in a growing population
Zarour LR, Billingsley KG, Walker BS, Enestvedt CK, Orloff SL, Maynard E, Mayo SC. Hepatic resection of solitary HCC in the elderly: A unique disease in a growing population. The American Journal Of Surgery 2019, 217: 899-905. PMID: 30819401, DOI: 10.1016/j.amjsurg.2019.01.030.Peer-Reviewed Original ResearchConceptsSolitary hepatocellular carcinomaPrognostic nutritional indexHepatic resectionElderly patientsUnique diseaseLow prognostic nutritional indexMedian Child-Pugh scoreTumor size 5Child-Pugh scoreGrade III complicationsHalf of patientsRecurrence-free survivalSolitary HCCExtrahepatic recurrenceProspective databaseR0 resectionIntrahepatic recurrenceMajor hepatectomyMedian survivalOverall survivalViral hepatitisLow morbidityMedian ageClinicopathologic dataClinicopathologic differences
2018
Epirubicin and Ifosfamide with Preoperative Radiation for High-Risk Soft Tissue Sarcomas
Lu E, Perlewitz KS, Hayden JB, Hung AY, Doung YC, Davis LE, Mansoor A, Vetto JT, Billingsley KG, Kaempf A, Park B, Ryan CW. Epirubicin and Ifosfamide with Preoperative Radiation for High-Risk Soft Tissue Sarcomas. Annals Of Surgical Oncology 2018, 25: 920-927. PMID: 29388122, DOI: 10.1245/s10434-018-6346-4.Peer-Reviewed Original ResearchConceptsSoft tissue sarcomasHigh-risk soft tissue sarcomasPhase II studyII studyPreoperative radiationTissue sarcomasHigh-grade soft tissue sarcomasHigh-risk STS patientsDistant disease-free survivalM2/dayExtensive institutional experienceLocal-regional failureDisease-free survivalRetrospective chart reviewDose-intense chemotherapyFavorable clinical outcomePercent of tumorsGy of radiationPostoperative cyclesTrimodality therapyPreoperative therapyWound complicationsChart reviewOverall survivalPathologic response
2015
Malignancy does not dictate the hypercoagulable state following liver resection
Gordon N, Riha G, Billingsley K, Schreiber M. Malignancy does not dictate the hypercoagulable state following liver resection. The American Journal Of Surgery 2015, 209: 870-874. PMID: 25805455, DOI: 10.1016/j.amjsurg.2014.12.022.Peer-Reviewed Original ResearchMeSH KeywordsBlood CoagulationFemaleFollow-Up StudiesHepatectomyHumansIncidenceLiver NeoplasmsMaleMiddle AgedOregonRetrospective StudiesThrombelastographyThrombophiliaConceptsRelative hypercoagulable stateLiver resectionHypercoagulable stateMalignant diseaseTEG valuesMalignancy statusCause of hypercoagulabilityPostoperative coagulopathyCoagulation profileRetrospective reviewResectionNormal rangePatientsDiseaseSignificant differencesMalignancyMedian valueR timeStatusCoagulopathyHypercoagulabilityGroup
2011
Safety and efficacy of preoperative right portal vein embolization in patients at risk for postoperative liver failure following major right hepatectomy
Massimino K, Kolbeck K, Enestvedt C, Orloff S, Billingsley K. Safety and efficacy of preoperative right portal vein embolization in patients at risk for postoperative liver failure following major right hepatectomy. Hepato Pancreato Biliary 2011, 14: 14-19. PMID: 22151446, PMCID: PMC3252986, DOI: 10.1111/j.1477-2574.2011.00402.x.Peer-Reviewed Original ResearchConceptsRight portal vein embolizationPortal vein embolizationFuture liver remnantShort-term outcomesFLR volumeVein embolizationPreoperative right portal vein embolizationMajor right hepatectomyPost-embolization complicationsPostoperative liver failureRecords of patientsResults of embolizationDegree of hypertrophyHypertrophy rateRight hepatectomyLiver resectionMost complicationsOperative complicationsOperative resectionPatient demographicsComplication rateLiver failureLiver insufficiencyOperative outcomesLiver remnantPredicting malignant intraductal papillary mucinous neoplasm: a single-center review
Cone M, Rea J, Diggs B, Douthit M, Billingsley K, Sheppard B. Predicting malignant intraductal papillary mucinous neoplasm: a single-center review. The American Journal Of Surgery 2011, 201: 575-579. PMID: 21545902, DOI: 10.1016/j.amjsurg.2011.01.003.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinoma, MucinousAdultAgedAged, 80 and overCarcinoma, Pancreatic DuctalCarcinoma, PapillaryDiagnosis, DifferentialEndosonographyFemaleFollow-Up StudiesHumansIncidenceMaleMiddle AgedPancreatectomyPancreatic NeoplasmsPrognosisRetrospective StudiesSurvival RateTime FactorsTomography, X-Ray ComputedUnited StatesConceptsIntraductal papillary mucinous neoplasmInternational consensus guidelinesMalignant intraductal papillary mucinous neoplasmPapillary mucinous neoplasmConsensus guidelinesMucinous neoplasmsInvasive cancerMain duct intraductal papillary mucinous neoplasmPancreatic intraductal papillary mucinous neoplasmsPercent of patientsSingle-center reviewHigh-grade dysplasiaMayo criteriaWorse survivalPatient groupFemale sexSingle institutionMayo ClinicLower riskPatientsMultivariate analysisCancerResectionMain ductNeoplasmsOutcome After Laparoscopic Radiofrequency Ablation of Technically Resectable Colorectal Liver Metastases
Hammill C, Billingsley K, Cassera M, Wolf R, Ujiki M, Hansen P. Outcome After Laparoscopic Radiofrequency Ablation of Technically Resectable Colorectal Liver Metastases. Annals Of Surgical Oncology 2011, 18: 1947-1954. PMID: 21399885, DOI: 10.1245/s10434-010-1535-9.Peer-Reviewed Original ResearchMeSH KeywordsAgedCatheter AblationCohort StudiesColorectal NeoplasmsCombined Modality TherapyFemaleFollow-Up StudiesHumansLaparoscopyLiver NeoplasmsMaleMiddle AgedNeoplasm Recurrence, LocalNeoplasm StagingPreoperative CareProspective StudiesRetrospective StudiesSurvival RateTomography, X-Ray ComputedTreatment OutcomeConceptsColorectal liver metastasesLaparoscopic radiofrequency ablationResectable colorectal liver metastasesRadiofrequency ablationResectable groupHepatic resectionLiver metastasesUnresectable groupMedian disease-free survivalComparable long-term survivalOutcomes of patientsDisease-free survivalKaplan-Meier methodLog-rank testLong-term survivalDiagnostic imaging studiesFavorable morbidityCRLM patientsPostoperative mortalityUnresectable diseaseMajor complicationsTumor numberResultsA totalSurgical oncologistsOutcome data
2010
Endoscopic ultrasound may be unnecessary in the preoperative evaluation of intraductal papillary mucinous neoplasm
Cone M, Rea J, Diggs B, Billingsley K, Sheppard B. Endoscopic ultrasound may be unnecessary in the preoperative evaluation of intraductal papillary mucinous neoplasm. Hepato Pancreato Biliary 2010, 13: 112-116. PMID: 21241428, PMCID: PMC3044345, DOI: 10.1111/j.1477-2574.2010.00254.x.Peer-Reviewed Original ResearchMeSH KeywordsAgedBiopsy, Fine-NeedleCarcinoma, Pancreatic DuctalCarcinoma, PapillaryChi-Square DistributionEndosonographyFemaleHumansLogistic ModelsMaleNeoplasms, Cystic, Mucinous, and SerousOdds RatioOregonPancreatic NeoplasmsPredictive Value of TestsPreoperative CareRetrospective StudiesTomography, X-Ray ComputedUnnecessary ProceduresConceptsIntraductal papillary mucinous neoplasmHigh-grade dysplasiaFine needle aspiratesPapillary mucinous neoplasmEndoscopic ultrasoundComputed tomographyCT scanMucinous neoplasmsCarcinoembryonic antigenPancreatic intraductal papillary mucinous neoplasmsDuct diameterLesion diameterPancreatic duct diameterPreoperative computed tomographyHigh-resolution CT scanningPreoperative evaluationInvasive cancerMedical recordsRadiographic criteriaStudy groupPatientsLesion sizeNeedle aspiratesMultivariate analysisCT scanning
2009
Evolving Preoperative Evaluation of Patients with Pancreatic Cancer: Does Laparoscopy Have a Role in the Current Era?
Mayo S, Austin D, Sheppard B, Mori M, Shipley D, Billingsley K. Evolving Preoperative Evaluation of Patients with Pancreatic Cancer: Does Laparoscopy Have a Role in the Current Era? Journal Of The American College Of Surgeons 2009, 208: 87-95. PMID: 19228509, DOI: 10.1016/j.jamcollsurg.2008.10.014.Peer-Reviewed Original ResearchConceptsPancreatic adenocarcinomaDiagnostic laparoscopyMetastatic diseaseSurgical explorationEndoscopic ultrasonographyDual-phase CT scanMultivariate logistic regression modelCornerstone of stagingPreoperative weight lossMedical record reviewSubset of patientsPopulation-based studyPancreatic cancer patientsState Cancer RegistrySound clinical approachCurrent imaging modalitiesCombination of CTCurrent staging techniquesLogistic regression modelsCurative intentPotential resectabilityResectable patientsLaparoscopic stagingPreoperative evaluationPrimary outcome
2008
Diagnostic Laparoscopy for Patients with Potentially Resectable Pancreatic Adenocarcinoma: Is It Cost-Effective in the Current Era?
Enestvedt C, Mayo S, Diggs B, Mori M, Austin D, Shipley D, Sheppard B, Billingsley K. Diagnostic Laparoscopy for Patients with Potentially Resectable Pancreatic Adenocarcinoma: Is It Cost-Effective in the Current Era? Journal Of Gastrointestinal Surgery 2008, 12: 1177-1184. PMID: 18470572, DOI: 10.1007/s11605-008-0514-y.Peer-Reviewed Original ResearchConceptsDiagnostic laparoscopyPancreatic cancerPancreatic adenocarcinomaUtilization of laparoscopyResectable pancreatic cancerResectable pancreatic adenocarcinomaPancreatic cancer databaseUse of laparoscopyState Cancer RegistryMedical record dataBiliary bypassPreoperative laparoscopyResectable patientsUnderwent laparoscopyUnresectable diseaseLaparoscopic explorationPeritoneal metastasisCancer RegistryStaging modalitiesCancer DatabaseAverage hospitalLaparoscopyMedicare dataPhysician chargesPatientsDoes Surgeon Case Volume Influence Nonfatal Adverse Outcomes after Rectal Cancer Resection?
Billingsley K, Morris A, Green P, Dominitz J, Matthews B, Dobie S, Barlow W, Baldwin L. Does Surgeon Case Volume Influence Nonfatal Adverse Outcomes after Rectal Cancer Resection? Journal Of The American College Of Surgeons 2008, 206: 1167-1177. PMID: 18501815, PMCID: PMC3103396, DOI: 10.1016/j.jamcollsurg.2007.12.042.Peer-Reviewed Original ResearchConceptsSurgeon volumeSurgeon ageProcedural interventionEnd Results (SEER) cancer registry programNonfatal adverse outcomesRectal cancer careMajor postoperative complicationsRectal cancer resectionEnd Results (SEER) dataCancer Registry ProgrammeRectal cancer patientsRectal cancer surgeryRetrospective cohort designHigh-volume surgeonsRectal cancer operationsPostoperative complicationsColorectal surgeryHospital volumeSurgical complicationsCancer resectionPrimary outcomeRectal cancerSevere complicationsCancer surgeryCancer operations
2006
Outcome Following Surgical Therapy for Gastrointestinal Stromal Tumors
Gupta M, Sheppard B, Corless C, MacDonell K, Blanke C, Billingsley K. Outcome Following Surgical Therapy for Gastrointestinal Stromal Tumors. Journal Of Gastrointestinal Surgery 2006, 10: 1099-1105. PMID: 16966028, DOI: 10.1016/j.gassur.2006.05.014.Peer-Reviewed Original ResearchConceptsGastrointestinal stromal tumorsMultivisceral resectionStromal tumorsMetastatic diseaseSurgical resectionImatinib mesylateDuodenal gastrointestinal stromal tumorKIT-positive gastrointestinal stromal tumoursCox proportional hazards modelPercent of patientsComplete surgical resectionKaplan-Meier methodLog-rank analysisPresence of metastasesLimits of resectionProportional hazards modelMitotic indexHigh mitotic indexActuarial survivalPostoperative survivalIncomplete resectionSurgical therapyComplete resectionImproved survivalIndependent predictorsComplications and Antireflux Medication Use After Antireflux Surgery
Dominitz J, Dire C, Billingsley K, Todd–Stenberg J. Complications and Antireflux Medication Use After Antireflux Surgery. Clinical Gastroenterology And Hepatology 2006, 4: 299-305. PMID: 16527692, DOI: 10.1016/j.cgh.2005.12.019.Peer-Reviewed Original ResearchConceptsAntireflux medication useAntireflux surgeryMedication useAntireflux medicationVeterans Affairs administrative databasesPredictors of complicationsGastroesophageal reflux diseaseMore outpatient visitsSurgical mortality rateHealth care useH2-receptor antagonistsPostoperative complicationsPromotility agentsReflux diseasePharmacy recordsOutpatient visitsEsophageal cancerReceptor antagonistCare useAdministrative databasesMultiple prescriptionsComplicationsPatientsMortality rateSurgery
2005
Explaining Black–White Differences in Receipt of Recommended Colon Cancer Treatment
Baldwin L, Dobie S, Billingsley K, Cai Y, Wright G, Dominitz J, Barlow W, Warren J, Taplin S. Explaining Black–White Differences in Receipt of Recommended Colon Cancer Treatment. Journal Of The National Cancer Institute 2005, 97: 1211-1220. PMID: 16106026, PMCID: PMC3138542, DOI: 10.1093/jnci/dji241.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBlack or African AmericanChemotherapy, AdjuvantCohort StudiesColonic NeoplasmsComorbidityFemaleHealth Services AccessibilityHumansLength of StayMaleMedicareOdds RatioPractice Patterns, Physicians'Retrospective StudiesRisk FactorsSEER ProgramSeverity of Illness IndexSocial SupportSocioeconomic FactorsUnited StatesWhite PeopleConceptsHealth system factorsBlack-White disparitiesChemotherapy receiptWhite patientsMedical oncologistsBlack patientsCancer treatmentRetrospective cohort studyBlack-white differencesColon cancer resectionAmerican Medical Association MasterfileEnd Results ProgramColorectal cancer treatmentColon cancer careColon cancer patientsLogistic regression analysisSystem factorsRegression analysisNeighborhood socioeconomic statusColon cancer treatmentAdjuvant chemotherapyChemotherapy useCohort studyCancer resectionIllness severity
2002
The utility of routine preoperative computed tomography scanning in the management of veterans with colon cancer
Barton J, Langdale L, Cummins J, Stelzner M, Lynge D, Mock C, Nason K, Billingsley K. The utility of routine preoperative computed tomography scanning in the management of veterans with colon cancer. The American Journal Of Surgery 2002, 183: 499-503. PMID: 12034380, DOI: 10.1016/s0002-9610(02)00841-3.Peer-Reviewed Original ResearchMeSH KeywordsAgedColonic NeoplasmsCritical PathwaysFemaleHumansMaleMiddle AgedNeoplasm StagingPreoperative CareRetrospective StudiesTomography, X-Ray ComputedVeteransConceptsPreoperative computed tomography scanningComputed tomography scanningColon cancerClinical managementPreoperative CTRoutine preoperative CT scanningTomography scanningCT scanningRoutine preoperative studiesPreoperative CT scanningPreoperative CT scanManagement of veteransIntraperitoneal colonPreoperative studiesMedical recordsOperative notesCT scanClinical utilityPatientsPreoperative scansCancerAdditional studiesHealthcare systemTreatment planningCTRace, Treatment, and Survival of Veterans With Cancer of the Distal Esophagus and Gastric Cardia
Dominitz J, Maynard C, Billingsley K, Boyko E. Race, Treatment, and Survival of Veterans With Cancer of the Distal Esophagus and Gastric Cardia. Medical Care 2002, 40: i-14. PMID: 11789626, DOI: 10.1097/00005650-200201001-00003.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaBlack or African AmericanCarcinoma, Squamous CellCardiaChemotherapy, AdjuvantCohort StudiesEsophageal NeoplasmsEsophagectomyEsophagogastric JunctionHealth Services AccessibilityHealth Services ResearchHospitals, VeteransHumansMaleProportional Hazards ModelsRadiotherapy, AdjuvantRetrospective StudiesSurvival AnalysisUnited StatesVeteransWhite PeopleConceptsSquamous cell carcinomaDistal esophageal cancerSurgical resectionBlack patientsRadiation therapyEsophageal cancerEsophageal adenocarcinomaEqual‐access medical systemWhite veteransVeterans Affairs Medical CenterBlack male veteransDistal esophageal adenocarcinomaSurvival of veteransRetrospective cohort studySurvival of patientsCohort studyGastric cardiaDistal esophagusSimilar oddsCell carcinomaCancer survivalMedical CenterInvasive proceduresLower oddsSimilar survival