2022
Impact of radiotherapy delay following biopsy for patients with unresected glioblastoma.
Gao S, Jin L, Moliterno J, Corbin ZA, Bindra RS, Contessa JN, Yu JB, Park HS. Impact of radiotherapy delay following biopsy for patients with unresected glioblastoma. Journal Of Neurosurgery 2022, 138: 610-620. PMID: 35907197, DOI: 10.3171/2022.5.jns212761.Peer-Reviewed Original ResearchMeSH KeywordsBiopsyBrain NeoplasmsGlioblastomaHumansProportional Hazards ModelsRadiotherapy, AdjuvantConceptsWeeks of biopsyOverall survivalCox proportional hazards regression modelingProportional hazards regression modelingNational Cancer DatabaseInitiation of radiotherapyKaplan-Meier methodWorse overall survivalWilcoxon rank sum testEffects of confoundersRank sum testUnresected diseaseAdjuvant radiotherapyConcurrent chemotherapyMedian intervalMultivariable analysisRadiotherapy delayCancer DatabaseClinical dataBiopsyPatientsLate initiationAggressive natureRadiotherapyPotential association
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
Defining an Intermediate-risk Group for Low-grade Glioma: A National Cancer Database Analysis
JAIRAM V, KANN BH, PARK HS, MICCIO JA, BECKTA JM, YU JB, PRABHU RS, GAO SJ, MEHTA MP, CURRAN WJ, BINDRA RS, CONTESSA JN, PATEL KR. Defining an Intermediate-risk Group for Low-grade Glioma: A National Cancer Database Analysis. Anticancer Research 2019, 39: 2911-2918. PMID: 31177129, DOI: 10.21873/anticanres.13420.Peer-Reviewed Original ResearchConceptsIntermediate-risk groupInferior overall survivalOverall survivalAdjuvant therapyLow-grade gliomasTumor sizePrognostic featuresMultivariate analysisPre-operative tumor sizeNational Cancer Database AnalysisNational Cancer DatabaseLow-risk patientsCohort of patientsKaplan-Meier methodPoor prognostic featuresGross total resectionHigh-risk groupPatterns of careAdditional prognostic featuresRTOG 9802Clinical factorsTotal resectionCancer DatabaseRisk groupsClinical classification
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 analysisPatterns of care and outcomes for use of concurrent chemoradiotherapy over radiotherapy alone for anaplastic gliomas
Yeboa DN, Rutter CE, Park HS, Lester-Coll NH, Corso CD, Mancini BR, Bindra RS, Contessa J, Yu JB. Patterns of care and outcomes for use of concurrent chemoradiotherapy over radiotherapy alone for anaplastic gliomas. Radiotherapy And Oncology 2017, 125: 258-265. PMID: 29054377, DOI: 10.1016/j.radonc.2017.09.027.Peer-Reviewed Original ResearchConceptsUse of CCRTConcurrent chemoradiotherapyPatterns of careAnaplastic gliomasOverall survivalCox proportional hazards regression modelingProportional hazards regression modelingMultivariable logistic regression analysisConcurrent CRTNational Cancer DatabaseKaplan-Meier analysisLog-rank testLogistic regression analysisGrade III gliomasAdjusted hazardAdult patientsImproved survivalCancer DatabaseDesign cohortRadiotherapyPropensity scorePatientsGliomasChemoradiotherapyRegression modeling
2015
Adjuvant hypofractionated partial-brain radiation therapy for pediatric Ewing sarcoma brain metastases: case report.
van Dams R, Park HS, Alomari AK, Ricciardi AS, Rao H, McNamara J, DiLuna ML, Bindra RS. Adjuvant hypofractionated partial-brain radiation therapy for pediatric Ewing sarcoma brain metastases: case report. Journal Of Neurosurgery Pediatrics 2015, 17: 434-8. PMID: 26636250, DOI: 10.3171/2015.8.peds15313.Peer-Reviewed Original ResearchMeSH KeywordsBrain NeoplasmsChildHumansMaleRadiation Dose HypofractionationRadiotherapy, AdjuvantSarcoma, EwingConceptsPartial brain radiation therapyRadiation therapyCase reportSarcoma brain metastasesEvidence of diseaseGross tumor resectionGross total resectionBrain metastasesInflammatory changesIntracranial metastasesSarcoma metastasisTumor resectionMetastasisTherapyResectionPatientsLimited marginReasonable approachReportDexamethasoneDiseaseGyBrainMonthsChanging 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 system
2014
Prophylactic Cranial Irradiation for Patients With Locally Advanced Non–Small-Cell Lung Cancer at High Risk for Brain Metastases
Park HS, Decker RH, Wilson LD, Yu JB. Prophylactic Cranial Irradiation for Patients With Locally Advanced Non–Small-Cell Lung Cancer at High Risk for Brain Metastases. Clinical Lung Cancer 2014, 16: 292-297. PMID: 25499149, DOI: 10.1016/j.cllc.2014.11.005.Peer-Reviewed Original ResearchConceptsProphylactic cranial irradiationLA-NSCLC patientsSequential landmark analysesCell lung cancerBrain metastasesHigh riskCranial irradiationSurvival benefitLung cancerLandmark analysisEffect of PCICox proportional hazards regressionNon-PCI patientsOverall survival benefitEnd Results (SEER) databaseHigh-risk patientsStage III NSCLCGroup of patientsProportional hazards regressionLog-rank testSignificant survival differenceImmortal time biasPopulation-based analysisAdult patientsOnly patients
2011
Survival outcomes in atypical teratoid rhabdoid tumor for patients undergoing radiotherapy in a Surveillance, Epidemiology, and End Results analysis
Buscariollo DL, Park HS, Roberts KB, Yu JB. Survival outcomes in atypical teratoid rhabdoid tumor for patients undergoing radiotherapy in a Surveillance, Epidemiology, and End Results analysis. Cancer 2011, 118: 4212-4219. PMID: 22213196, DOI: 10.1002/cncr.27373.Peer-Reviewed Original ResearchConceptsAtypical teratoid rhabdoid tumorMedian overall survivalOverall survivalRT useLandmark analysisRhabdoid tumorRare central nervous system malignanciesNational Cancer Institute's SurveillanceCentral nervous system malignanciesCox proportional hazards modelRole of radiotherapyEnd Results (SEER) databaseEnd Results analysisSignificant survival benefitProspective clinical trialsGross total resectionPatients ages 4Nervous system malignanciesImmortal time biasProportional hazards modelLong-term survivorshipAdjuvant radiotherapyInitial radiotherapyPrimary endpointInitial managementStereotactic 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