2021
Clinical Outcomes and Safety Profile in the Treatment of Synchronous Nonmetastatic Lung Tumors With Stereotactic Body Radiation Therapy
Raju SC, Peters GW, Decker RH, Park HS. Clinical Outcomes and Safety Profile in the Treatment of Synchronous Nonmetastatic Lung Tumors With Stereotactic Body Radiation Therapy. Practical Radiation Oncology 2021, 12: e110-e116. PMID: 34861443, DOI: 10.1016/j.prro.2021.11.006.Peer-Reviewed Original ResearchConceptsStereotactic body radiation therapyPrimary lung tumorsSynchronous primary lung tumorsAdverse events gradeCommon Terminology CriteriaBody radiation therapyLung tumorsNew primaryTerminology CriteriaOverall survivalClinical outcomesLung cancerRadiation therapyEvents gradeEarly-stage primary lung cancerMedian progression-free survivalEffective doseDistant failure ratesLocal failure rateMedian overall survivalMedian total dosePrimary lung cancerProgression-free survivalPatterns of recurrenceNonmetastatic lung cancer
2020
Local Ablative Therapies for Oligometastatic and Oligoprogressive Non-Small Cell Lung Cancer.
Jairam V, Park HS, Decker RH. Local Ablative Therapies for Oligometastatic and Oligoprogressive Non-Small Cell Lung Cancer. The Cancer Journal 2020, 26: 129-136. PMID: 32205537, DOI: 10.1097/ppo.0000000000000433.Peer-Reviewed Original ResearchConceptsNon-small cell lung cancerLocal ablative therapyOligoprogressive non-small cell lung cancerCell lung cancerAblative therapyMetastatic diseaseLung cancerMetastatic non-small cell lung cancerTime of diagnosisLong-term survivalLimited metastasesOligometastatic diseaseMetastatic patientsSystemic therapyRadiofrequency ablationDisease progressionPatient outcomesStereotactic radiotherapyTherapyPatientsDiseaseAccumulation of evidenceCancerProgressionComplex diseases
2019
Multi-institutional analysis of stereotactic body radiation therapy for operable early-stage non-small cell lung carcinoma
Kann BH, Verma V, Stahl JM, Ross R, Dosoretz AP, Shafman TD, Gross CP, Park HS, Yu JB, Decker RH. Multi-institutional analysis of stereotactic body radiation therapy for operable early-stage non-small cell lung carcinoma. Radiotherapy And Oncology 2019, 134: 44-49. PMID: 31005223, DOI: 10.1016/j.radonc.2019.01.027.Peer-Reviewed Original ResearchConceptsNon-small cell lung carcinomaStereotactic body radiation therapyProgression-free survivalEarly-stage non-small cell lung carcinomaOperable patientsBody radiation therapyCell lung carcinomaOverall survivalLocal failureLung carcinomaRadiation therapyInoperable early stage non-small cell lung carcinomaDefinitive stereotactic body radiation therapyLack of resectionPoor surgical candidacyRetrospective cohort studyKaplan-Meier methodologyHigher overall survivalDisease-related outcomesMulti-institutional analysisDocumentation of patientsStandard of careMulti-institutional studyCohort studyInoperable patients
2018
Stereotactic body radiotherapy with adjuvant systemic therapy for early-stage non-small cell lung carcinoma: A multi-institutional analysis
Kann BH, Miccio JA, Stahl JM, Ross R, Verma V, Dosoretz AP, Park HS, Shafman TD, Gross CP, Yu JB, Decker RH. Stereotactic body radiotherapy with adjuvant systemic therapy for early-stage non-small cell lung carcinoma: A multi-institutional analysis. Radiotherapy And Oncology 2018, 132: 188-196. PMID: 30391106, DOI: 10.1016/j.radonc.2018.10.017.Peer-Reviewed Original ResearchConceptsNon-small cell lung carcinomaStereotactic body radiotherapyAdjuvant systemic therapyEarly-stage non-small cell lung carcinomaSystemic therapyMulti-institutional analysisCell lung carcinomaOverall survivalST patientsBody radiotherapyLung carcinomaDefinitive stereotactic body radiotherapyEarly-stage NSCLC patientsClinical risk factorsRetrospective cohort studyKaplan-Meier methodHigher T stageTreatment of patientsMulti-institutional databasePropensity-score matchingPlatinum doubletsST cohortST regimenCohort studyNSCLC patients
2017
Radiosurgery for Brain Metastases: Changing Practice Patterns and Disparities in the United States.
Kann BH, Park HS, Johnson SB, Chiang VL, Yu JB. Radiosurgery for Brain Metastases: Changing Practice Patterns and Disparities in the United States. Journal Of The National Comprehensive Cancer Network 2017, 15: 1494-1502. PMID: 29223987, DOI: 10.6004/jnccn.2017.7003.Peer-Reviewed Original ResearchConceptsNational Cancer Data BaseStereotactic radiosurgeryBrain metastasesPractice patternsBrain radiotherapyMetastatic diseaseMetastatic non-small cell lung cancerNon-small cell lung cancerNon-SR patientsUpfront brain radiotherapyNational practice patternsProportion of patientsKaplan-Meier methodCell lung cancerProportion of facilitiesQuality of lifeChi-square testActuarial survivalIntracranial controlNeurocognitive toxicityNonprivate insuranceSRS useNCDB analysisDiagnosis yearMultivariable analysisAngiotensin receptor blockade: a novel approach for symptomatic radiation necrosis after stereotactic radiosurgery
Chowdhary M, Okwan-Duodu D, Switchenko JM, Press RH, Jhaveri J, Buchwald ZS, Zhong J, Chapman BV, Bindra RS, Contessa JN, Park HS, Yu JB, Decker RH, Olson JJ, Oyesiku NM, Abrams RA, Shu HG, Curran WJ, Crocker IR, Patel KR. Angiotensin receptor blockade: a novel approach for symptomatic radiation necrosis after stereotactic radiosurgery. Journal Of Neuro-Oncology 2017, 136: 289-298. PMID: 29124649, PMCID: PMC5784434, DOI: 10.1007/s11060-017-2652-0.Peer-Reviewed Original ResearchConceptsSymptomatic radiation necrosisOverall survivalStereotactic radiosurgeryIntracranial efficacyRadiation necrosisKaplan-Meier methodLate radiation toxicitySignificant predictive factorsArteriovenous malformation patientsCumulative incidence modelsIntracranial outcomesBaseline characteristicsBlockade therapyBrain metastasesProspective trialABT groupConsecutive patientsMedian ageMeier methodPreclinical evidencePredictive factorsAVM cohortsRadiation toxicityPrognostic analysisMultivariate analysisDose-Volume Predictors of Esophagitis After Thoracic Stereotactic Body Radiation Therapy
Harder EM, Chen Z, Park HS, Mancini BR, Decker RH. Dose-Volume Predictors of Esophagitis After Thoracic Stereotactic Body Radiation Therapy. American Journal Of Clinical Oncology 2017, 40: 477-482. PMID: 26017483, DOI: 10.1097/coc.0000000000000195.Peer-Reviewed Original ResearchConceptsStepwise selection techniqueRadiation therapyThoracic stereotactic body radiation therapyStereotactic hypofractionated radiation therapyStereotactic body radiation therapyDose-volume predictorsNormal tissue complication probabilityHypofractionated radiation therapyMultivariate logistic regressionProbability estimatesBody radiation therapyPlanning target volumeEsophageal toxicityEsophagitis ratesCTCAE v4.0Dosimetric predictorsPulmonary tumorsInstitutional databaseRadiotherapy parametersStage I Lung SBRT Clinical Practice Patterns
Corso CD, Park HS, Moreno AC, Kim AW, Yu JB, Husain ZA, Decker RH. Stage I Lung SBRT Clinical Practice Patterns. American Journal Of Clinical Oncology 2017, 40: 358-361. PMID: 25503436, DOI: 10.1097/coc.0000000000000162.Peer-Reviewed Original ResearchConceptsStereotactic body radiation therapyNational Cancer DatabaseStage I non-small cell lung cancer patientsUse of SBRTNon-small cell lung cancer patientsCell lung cancer patientsStage I NSCLCMajority of patientsClinical practice patternsLung cancer patientsBody radiation therapyMedian BED10SBRT useDosing guidelinesRetrospective studyCancer patientsPrescription trendsCancer DatabasePractice patternsRadiation therapyPatientsDose prescriptionGyRegimensCommon prescription
2016
Trends in stereotactic body radiation therapy for stage I small cell lung cancer
Stahl JM, Corso CD, Verma V, Park HS, Nath SK, Husain ZA, Simone CB, Kim AW, Decker RH. Trends in stereotactic body radiation therapy for stage I small cell lung cancer. Lung Cancer 2016, 103: 11-16. PMID: 28024690, DOI: 10.1016/j.lungcan.2016.11.009.Peer-Reviewed Original ResearchConceptsStage I small cell lung cancerNational Cancer Data BaseSmall cell lung cancerCell lung cancerMultivariable logistic regressionSBRT utilizationLung cancerDose prescriptionLogistic regressionStereotactic body radiation therapyInitial treatment allocationClinical stage IDefinitive surgical managementAdministration of chemotherapyKaplan-Meier methodBody radiation therapyRadiation therapy utilizationSBRT useChemotherapy useInoperable patientsMedian survivalChemotherapy administrationOverall survivalSurgical managementTherapy utilizationElderly patients undergoing SBRT for inoperable early-stage NSCLC achieve similar outcomes to younger patients
Mancini BR, Park HS, Harder EM, Rutter CE, Corso CD, Decker RH, Husain ZA. Elderly patients undergoing SBRT for inoperable early-stage NSCLC achieve similar outcomes to younger patients. Lung Cancer 2016, 97: 22-27. PMID: 27237023, DOI: 10.1016/j.lungcan.2016.04.011.Peer-Reviewed Original ResearchConceptsNon-small cell lung cancerEarly-stage non-small cell lung cancerStereotactic body radiation therapyNon-elderly patientsElderly patientsDistant controlOverall survivalYounger patientsInoperable early-stage non-small cell lung cancerUse of SBRTStage non-small cell lung cancerLocal controlMultivariable Cox proportional hazards analysisCox proportional hazards analysisGrade 5 toxicityNon-elderly cohortProportional hazards analysisCell lung cancerRisk of complicationsRate of efficacyBody radiation therapyLogistic regression analysisLate gradeAcute gradeSurgical resectionPulmonary dose-volume predictors of radiation pneumonitis following stereotactic body radiation therapy
Harder EM, Park HS, Chen Z, Decker RH. Pulmonary dose-volume predictors of radiation pneumonitis following stereotactic body radiation therapy. Practical Radiation Oncology 2016, 6: e353-e359. PMID: 27156424, DOI: 10.1016/j.prro.2016.01.015.Peer-Reviewed Original ResearchConceptsMean lung doseStereotactic body radiation therapyRisk of gradeRadiation pneumonitisMultivariable logistic regressionBody radiation therapyDosimetric predictorsRadiation therapyMaximum doseLogistic regressionRP rateBest dosimetric predictorCardiac dosimetric parametersDose-volume predictorsPercent of lungVolume of lungGross tumor volumeBackward stepwise eliminationLung V10Lung doseMean doseTotal lungUnivariate analysisPulmonary volumesTumor volume
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 systemAngiotensin-converting enzyme inhibitors decrease the risk of radiation pneumonitis after stereotactic body radiation therapy
Harder EM, Park HS, Nath SK, Mancini BR, Decker RH. Angiotensin-converting enzyme inhibitors decrease the risk of radiation pneumonitis after stereotactic body radiation therapy. Practical Radiation Oncology 2015, 5: e643-e649. PMID: 26412341, DOI: 10.1016/j.prro.2015.07.003.Peer-Reviewed Original ResearchConceptsStereotactic body radiation therapyACE inhibitor useNonsteroidal anti-inflammatory drugsAngiotensin receptor blockersRadiation pneumonitisSymptomatic radiation pneumonitisInhibitor useBody radiation therapyAnti-inflammatory drugsRadiation therapyReceptor blockersACE inhibitorsAngiotensin-converting enzyme inhibitor useACE inhibitor usersCommon Terminology CriteriaEnzyme inhibitor usePrimary lung cancerNormal lung tissuesAvailable medical recordsCox proportional hazardsPulmonary doseTerminology CriteriaInhibitor usersAdverse eventsOverall survivalRacial disparities in the use of SBRT for treating early-stage lung cancer
Corso CD, Park HS, Kim AW, Yu JB, Husain Z, Decker RH. Racial disparities in the use of SBRT for treating early-stage lung cancer. Lung Cancer 2015, 89: 133-138. PMID: 26051446, DOI: 10.1016/j.lungcan.2015.05.002.Peer-Reviewed Original ResearchConceptsStereotactic body radiotherapyUse of SBRTEarly-stage lung cancerBlack patientsExternal beam radiationWhite patientsAggressive therapyLung cancerRacial disparitiesNon-operative cohortNational Cancer DatabaseStage I NSCLCPrimary treatment modalitySurgical resection rateMultivariable logistic regressionPopulation-based studyPotential racial disparitiesInoperable candidatesSBRT useSBRT utilizationInoperable patientsResection rateSurgical resectionMultivariable analysisSurgical interventionCentral versus Peripheral Tumor Location: Influence on Survival, Local Control, and Toxicity Following Stereotactic Body Radiotherapy for Primary Non–Small-Cell Lung Cancer
Park HS, Harder EM, Mancini BR, Decker RH. Central versus Peripheral Tumor Location: Influence on Survival, Local Control, and Toxicity Following Stereotactic Body Radiotherapy for Primary Non–Small-Cell Lung Cancer. Journal Of Thoracic Oncology 2015, 10: 832-837. PMID: 25634007, DOI: 10.1097/jto.0000000000000484.Peer-Reviewed Original ResearchConceptsStereotactic body radiotherapyBiological equivalent doseCentral tumor locationCell lung cancerOverall survivalTumor locationCentral tumorsLocal controlLung cancerBody radiotherapyPrimary non-small cell lung cancerNon-small cell lung cancerMultivariable logistic regression modelingMultivariable Cox regression modelingInoperable early stageProximal bronchial treeInferior overall survivalCox regression modelingKaplan-Meier analysisWorse overall survivalPeripheral tumor locationRegression modelingLogistic regression modelingAcute gradeCT1-2N0M0
2014
Increase in the use of lung stereotactic body radiotherapy without a preceding biopsy in the United States
Rutter CE, Corso CD, Park HS, Mancini BR, Yeboa DN, Lester-Coll NH, Kim AW, Decker RH. Increase in the use of lung stereotactic body radiotherapy without a preceding biopsy in the United States. Lung Cancer 2014, 85: 390-394. PMID: 25001510, DOI: 10.1016/j.lungcan.2014.06.013.Peer-Reviewed Original ResearchConceptsNon-small cell lung cancerStereotactic body radiotherapyBody radiotherapyStage I non-small cell lung cancerEarly-stage non-small cell lung cancerStage non-small cell lung cancerMultivariate analysisUse of SBRTLung stereotactic body radiotherapyLogistic regressionNational Cancer DatabasePercentage of patientsYear of diagnosisSmaller tumor sizeCell lung cancerMultivariate logistic regressionMedical inoperabilityMedical comorbiditiesInoperable patientsTumor sizeLung cancerCancer DatabaseEfficacious treatmentSBRT deliveryBiopsy
2011
Stereotactic radiosurgery with or without whole-brain radiotherapy for brain metastases: an update
Park HS, Chiang VL, Knisely JP, Raldow AC, Yu JB. Stereotactic radiosurgery with or without whole-brain radiotherapy for brain metastases: an update. Expert Review Of Anticancer Therapy 2011, 11: 1731-1738. PMID: 22050022, DOI: 10.1586/era.11.165.Peer-Reviewed Original ResearchConceptsWhole-brain radiation therapyStereotactic radiosurgeryBrain metastasesAddition of SRSUse of SRSMD Anderson Cancer CenterWhole brain radiotherapyLocal tumor controlStandard of careAnderson Cancer CenterNormal brain tissueNonrandomized evidenceLimited metastasesOligometastatic diseaseCancer CenterTumor controlRelative sparingRadiation therapyBrain tissueMetastasisSingle fractionNormal tissuesPatientsRadiosurgeryTrialsDelayed Radiation-Induced Vasculitic Leukoencephalopathy
Rauch PJ, Park HS, Knisely JP, Chiang VL, Vortmeyer AO. Delayed Radiation-Induced Vasculitic Leukoencephalopathy. International Journal Of Radiation Oncology • Biology • Physics 2011, 83: 369-375. PMID: 22024206, DOI: 10.1016/j.ijrobp.2011.06.1982.Peer-Reviewed Original ResearchConceptsGamma knife radiosurgeryKnife radiosurgeryRadiation therapyYale-New Haven HospitalRadiation-induced leukoencephalopathyHigh-dose radiation fieldT cell infiltrationMetastatic brain cancerFocused radiation therapyMedium-sized vesselsNew Haven HospitalActive vasculitisLeukoencephalopathic changesVasculitic componentBrain metastasesVascular sclerosisNeuropathologic examinationSignificant morbiditySurgical managementTumor recurrencePathological evidenceHistopathologic observationsLeukoencephalopathyPathological differencesBrain cancer