2016
A Novel Prognostic Index for Ocular Adnexal Lymphoma
Meeks M, Park H, Yu J, Roberts K, Foss F, Wilson L. A Novel Prognostic Index for Ocular Adnexal Lymphoma. Blood 2016, 128: 3597. DOI: 10.1182/blood.v128.22.3597.3597.Peer-Reviewed Original ResearchOcular adnexal lymphomaNovel prognostic indexOverall survivalIndolent histologiesPrognostic indexRelative survivalAdnexal lymphomaGroup IIGroup IGroup I. Group IEnd Results (SEER) databaseSuperior overall survivalCohort of patientsProportional hazards analysisKaplan-Meier estimatesLacrimal gland tumorsHeterogeneous patient populationLarge national databaseAggressive histologyDistant diseaseConjunctival tumorsHazard ratioPrognostic factorsRare malignancyIndependent predictorsHospital Volume and Outcomes of Robot-Assisted Lobectomies
Tchouta LN, Park HS, Boffa DJ, Blasberg JD, Detterbeck FC, Kim AW. Hospital Volume and Outcomes of Robot-Assisted Lobectomies. CHEST Journal 2016, 151: 329-339. PMID: 27687847, DOI: 10.1016/j.chest.2016.09.008.Peer-Reviewed Original ResearchMeSH KeywordsAgedCase-Control StudiesCohort StudiesDatabases, FactualFemaleHospital MortalityHospitals, High-VolumeHospitals, Low-VolumeHumansLength of StayLinear ModelsLogistic ModelsLungLung NeoplasmsMaleMiddle AgedMultivariate AnalysisPneumonectomyPostoperative ComplicationsRetrospective StudiesRobotic Surgical ProceduresThoracic Surgery, Video-AssistedTreatment OutcomeConceptsLength of stayLow-volume centersHospital volumeClinical impactHealth care system-related factorsShorter mean LOSUtilization Project National Inpatient Sample databaseVolume/outcome relationshipLong-term clinical impactMean LOSNational Inpatient Sample databaseShorter LOSVideo-assisted thoracoscopic surgeryHospital operative volumeHigh-volume hospitalsIncidence of complicationsHigher hospital volumeThoracoscopic surgery lobectomyAnnual case volumeSystem-related factorsOutcomes of interestLOS outcomesInfectious complicationsInpatient mortalityIndependent predictorsPretreatment predictors of adjuvant chemoradiation in patients receiving transoral robotic surgery for squamous cell carcinoma of the oropharynx: a case control study
Subramanian HE, Park HS, Barbieri A, Mahajan A, Judson BL, Mehra S, Yarbrough WG, Burtness BA, Husain ZA. Pretreatment predictors of adjuvant chemoradiation in patients receiving transoral robotic surgery for squamous cell carcinoma of the oropharynx: a case control study. Cancers Of The Head & Neck 2016, 1: 7. PMID: 31093337, PMCID: PMC6460847, DOI: 10.1186/s41199-016-0008-7.Peer-Reviewed Original ResearchTransoral robotic surgeryPositive lymph nodesPreoperative patient characteristicsLymph node sizePositive surgical marginsExtracapsular extensionLymph nodesPatient characteristicsSurgical marginsAdjuvant chemoradiationNeck dissectionIndependent predictorsPositive marginsLymph node extracapsular extensionSingle-institution retrospective studyNode sizeLogistic regressionRobotic surgeryNodal extracapsular extensionPreoperative lymph nodeEarly-stage diseaseMajority of patientsSquamous cell carcinomaCase-control studyPrimary oropharyngeal cancer
2015
Changing practice patterns of Gamma Knife versus linear accelerator-based stereotactic radiosurgery for brain metastases in the US.
Park HS, Wang EH, Rutter CE, Corso CD, Chiang VL, Yu JB. Changing practice patterns of Gamma Knife versus linear accelerator-based stereotactic radiosurgery for brain metastases in the US. Journal Of Neurosurgery 2015, 124: 1018-24. PMID: 26473783, DOI: 10.3171/2015.4.jns1573.Peer-Reviewed Original ResearchConceptsSingle-fraction stereotactic radiosurgeryNon-small cell lung cancerBrain metastasesStereotactic radiosurgeryNational Cancer Data BaseMultivariable logistic regression analysisSingle-fraction SRSLinear accelerator-based stereotactic radiosurgeryAcademic facility typesLimited brain metastasesNSCLC brain metastasesProportion of patientsYear of diagnosisToxicity of treatmentCell lung cancerLogistic regression analysisSRS useWide geographic variationChi-square testComparative effectiveness researchProspective trialIndependent predictorsMultivariable analysisNonclinical factorsRadiosurgery systemPredictors of vaginal stenosis after intravaginal high-dose-rate brachytherapy for endometrial carcinoma
Park HS, Ratner ES, Lucarelli L, Polizzi S, Higgins SA, Damast S. Predictors of vaginal stenosis after intravaginal high-dose-rate brachytherapy for endometrial carcinoma. Brachytherapy 2015, 14: 464-470. PMID: 25887343, DOI: 10.1016/j.brachy.2015.03.001.Peer-Reviewed Original ResearchConceptsVaginal stenosisDilator useIndependent predictorsEndometrial carcinomaTotal doseRate brachytherapyMultivariable logistic regression analysisExternal beam radiation therapyCommon Terminology CriteriaEffective adjuvant treatmentMonths of followupPost-treatment factorsBeam radiation therapyHigher total doseLogistic regression analysisTerminology CriteriaAdjuvant treatmentFollowup visitMean followupAdverse eventsLast followupMultivariable analysisRisk factorsRadiation therapyPatients
2014
Assessment of National Practice for Palliative Radiation Therapy for Bone Metastases Suggests Marked Underutilization of Single-Fraction Regimens in the United States
Rutter CE, Yu JB, Wilson LD, Park HS. Assessment of National Practice for Palliative Radiation Therapy for Bone Metastases Suggests Marked Underutilization of Single-Fraction Regimens in the United States. International Journal Of Radiation Oncology • Biology • Physics 2014, 91: 548-555. PMID: 25542310, DOI: 10.1016/j.ijrobp.2014.10.045.Peer-Reviewed Original ResearchConceptsNational Cancer Data BaseBone metastasesRadiation therapyMultiple fraction radiation therapyNon-private health insuranceSingle-fraction regimensPalliative radiation therapyProportion of patientsValue-based treatment decisionsRadiation therapy regimensMultiple-fraction treatmentsSingle-fraction treatmentCost-conscious careIndependent predictorsOsseous metastasesRandomized evidenceTherapy regimensLung cancerTreatment decisionsVertebral sitesClinical practicePatientsMarked underutilizationOlder ageSingle fraction
2011
Impact of Hospital Volume of Thoracoscopic Lobectomy on Primary Lung Cancer Outcomes
Park HS, Detterbeck FC, Boffa DJ, Kim AW. Impact of Hospital Volume of Thoracoscopic Lobectomy on Primary Lung Cancer Outcomes. The Annals Of Thoracic Surgery 2011, 93: 372-379. PMID: 21945225, DOI: 10.1016/j.athoracsur.2011.06.054.Peer-Reviewed Original ResearchConceptsPrimary lung cancer patientsLung cancer patientsShorter LOSMultivariable analysisMedian LOSHospital volumeIndependent predictorsPulmonary lobectomyOpen lobectomyCancer patientsVAT volumeUtilization Project Nationwide Inpatient Sample databaseVideo-assisted thoracoscopic surgery lobectomyHospital operative volumeShorter median LOSLung cancer outcomesPrimary lung cancerHigher hospital volumeShort-term outcomesThoracoscopic surgery lobectomyDiseases procedure codesTotal complicationsHospital lengthHospital morbidityVATS patients
2009
Outcomes From 3144 Adrenalectomies in the United States: Which Matters More, Surgeon Volume or Specialty?
Park HS, Roman SA, Sosa JA. Outcomes From 3144 Adrenalectomies in the United States: Which Matters More, Surgeon Volume or Specialty? JAMA Surgery 2009, 144: 1060-1067. PMID: 19917944, DOI: 10.1001/archsurg.2009.191.Peer-Reviewed Original ResearchMeSH KeywordsAdrenal Gland NeoplasmsAdrenalectomyAdultAgedClinical CompetenceCohort StudiesFemaleFollow-Up StudiesHospital CostsHospital MortalityHumansLogistic ModelsMaleMiddle AgedMultivariate AnalysisOutcome Assessment, Health CarePractice Patterns, Physicians'ProbabilityRegistriesRetrospective StudiesRisk FactorsSpecializationSurvival RateTreatment OutcomeUnited StatesWorkloadConceptsHigh-volume surgeonsSurgeon volumeHospital volumeMore complicationsGeneral surgeonsUtilization Project Nationwide Inpatient SampleRetrospective cohort analysisNationwide Inpatient SampleLow-volume surgeonsPredictors of costsInpatient hospital costsTotal inpatient hospital costsHospital complicationsHospital lengthAdrenal volumeClinical characteristicsHospital factorsAdrenal diseaseIndependent predictorsLonger LOSPatient ageSurgeon specialtyInpatient SampleHospital costsLaparoscopic expertise