2024
PO0205 Investigation of Inter-Observer Variability of Rectovaginal Reference Point Definition for Cervical Cancer Brachytherapy
Adefres B, Wallington D, Tien C, Damast S. PO0205 Investigation of Inter-Observer Variability of Rectovaginal Reference Point Definition for Cervical Cancer Brachytherapy. Brachytherapy 2024, 23: s96. DOI: 10.1016/j.brachy.2024.08.140.Peer-Reviewed Original ResearchExternal beam radiotherapyTreatment planning systemCervical cancer brachytherapyObserver 1Inter-observer variationObserver 2High dose rate brachytherapyDose gradientCombined external beam radiotherapyExternal beam radiotherapy doseDose measurementsPhysical doseCancer brachytherapyPosterior vaginal wallCervical cancer patientsBrachytherapy techniquesPlanning systemInter-observer differencesInter-observer variabilityBrachytherapy doseCumulative EQD2HDR-BTVaginal doseBeam radiotherapyVaginal wallPO0222 Feasibility of 3-D Printed Prototypes of Indwelling Intrauterine Tube for Tandem-Based Cervical Brachytherapy
Tien C, Damast S, Glennon A. PO0222 Feasibility of 3-D Printed Prototypes of Indwelling Intrauterine Tube for Tandem-Based Cervical Brachytherapy. Brachytherapy 2024, 23: s105. DOI: 10.1016/j.brachy.2024.08.156.Peer-Reviewed Original ResearchSmit sleeveIntrauterine tubeCervical brachytherapyAnimal modelsClinical useUtero timeCT imagesBeam radiationPrevent perforationBrachytherapyClinical prototypeIn-house methodologyClinicMinutesImplantationSTL fileSleeveCervixIntrauterineDaysUterusUteroLong-termCoefficient of thermal expansionISO testsSaturday, July 13, 202411:30 AM - 12:30 PMGSOR01 Presentation Time: 11:30 AM A Prospective Clinical Trial Assessing Comfort of Brachytherapy with a Novel Tapered Vaginal Applicator
Mahal A, Yu J, Mahal R, Tien C, Adefres B, Damast S. Saturday, July 13, 202411:30 AM - 12:30 PMGSOR01 Presentation Time: 11:30 AM A Prospective Clinical Trial Assessing Comfort of Brachytherapy with a Novel Tapered Vaginal Applicator. Brachytherapy 2024, 23: s72-s73. DOI: 10.1016/j.brachy.2024.08.099.Peer-Reviewed Original ResearchVisual-analogue-scaleVaginal brachytherapyVaginal stretchingVaginal applicationEndometrial cancerAssociated with less painIr-192 seedsDose fall-offClinically significant responseProspective clinical trialPatient-centered evaluationVaginal introitusProspective trialsDose distributionSurface doseVaginal mucosaIr-192Less painNarrow introitusPaired t-testEC patientsConsenting patientsClinical trialsIntroitusPatientsThe Prognostic Impact of MLH1 Promoter Hypermethylation in Stage I-II Endometrial Cancer Treated with Adjuvant Radiotherapy
Sherwani Z, Damast S, Fields E, Shah S, Beriwal S, Horne Z, Parks E, Kidd E, Leung E, Khoja L, Taunk N, Chino J, Huang C, Russo A, Dyer M, Albuquerque K, Hathout L. The Prognostic Impact of MLH1 Promoter Hypermethylation in Stage I-II Endometrial Cancer Treated with Adjuvant Radiotherapy. International Journal Of Radiation Oncology • Biology • Physics 2024, 120: s32. DOI: 10.1016/j.ijrobp.2024.07.044.Peer-Reviewed Original ResearchRecurrence-free survivalExternal beam radiationMismatch repair statusOverall survivalAdjuvant radiotherapyVaginal brachytherapyAssociated with decreased RFSPromoter hypermethylationInferior recurrence-free survivalProportion of locoregional recurrenceTreated with adjuvant radiotherapyDepth of myometrial invasionLympho-vascular space invasionMulti-institutional cohort studyRetrospective multi-institutional cohort studyCervical stromal involvementSite of recurrenceKaplan Meier methodPost-surgical resectionCox proportional hazards modelsMulti-institutional studyDeficient mismatch repairProportional hazards modelImpact OSLocoregional recurrenceVulvar Cancer, Version 3.2024, NCCN Clinical Practice Guidelines in Oncology.
Abu-Rustum N, Yashar C, Arend R, Barber E, Bradley K, Brooks R, Campos S, Chino J, Chon H, Crispens M, Damast S, Fisher C, Frederick P, Gaffney D, Gaillard S, Giuntoli R, Glaser S, Holmes J, Howitt B, Kendra K, Lea J, Lee N, Mantia-Smaldone G, Mariani A, Mutch D, Nagel C, Nekhlyudov L, Podoll M, Rodabaugh K, Salani R, Schorge J, Siedel J, Sisodia R, Soliman P, Ueda S, Urban R, Wethington S, Wyse E, Zanotti K, McMillian N, Espinosa S. Vulvar Cancer, Version 3.2024, NCCN Clinical Practice Guidelines in Oncology. Journal Of The National Comprehensive Cancer Network 2024, 22: 117-135. PMID: 38503056, DOI: 10.6004/jnccn.2024.0013.Peer-Reviewed Original ResearchConceptsNCCN Clinical Practice GuidelinesVulvar cancerClinical practice guidelinesCell carcinomaHistologically squamous cell carcinomaSystemic therapy optionsSquamous cell carcinomaBasal cell carcinomaExtramammary Paget's diseasePractice guidelinesVerrucous carcinomaGynecologic malignanciesHuman papillomavirusVulvar neoplasiaTherapy optionsPaget's diseaseInflammatory conditionsRisk factorsCigarette smokingCarcinomaCancerIncreasing ageHistologyNCCNVulvarPrognostic Effect of Mismatch Repair Status in Early-Stage Endometrial Cancer Treated With Adjuvant Radiation: A Multi-institutional Analysis
Hathout L, Sherwani Z, Alegun J, Ohri N, Fields E, Shah S, Beriwal S, Horne Z, Kidd E, Leung E, Song J, Taunk N, Chino J, Huang C, Russo A, Dyer M, Li J, Albuquerque K, Damast S. Prognostic Effect of Mismatch Repair Status in Early-Stage Endometrial Cancer Treated With Adjuvant Radiation: A Multi-institutional Analysis. International Journal Of Radiation Oncology • Biology • Physics 2024, 119: 1158-1165. PMID: 38253292, DOI: 10.1016/j.ijrobp.2024.01.203.Peer-Reviewed Original ResearchRecurrence-free survivalEndometrioid endometrial adenocarcinomaMismatch repair statusAdjuvant radiation therapyOverall survivalRadiation therapyVaginal brachytherapyMismatch repair deficiencyAssociated with worse recurrence-free survivalMulti-institutional retrospective cohort studyTreated with adjuvant radiation therapyAssociated with recurrence-free survivalMultivariate analysisExternal beam radiation therapyRecurrence-free survival ratesMismatch repair deficiency statusBeam radiation therapyGrades 1 to 2Kaplan-Meier methodOutcomes of patientsMulti-institutional analysisRetrospective cohort studyCox proportional hazards modelsProportional hazards modelAdjuvant radiation
2023
NCCN Guidelines® Insights: Cervical Cancer, Version 1.2024.
Abu-Rustum N, Yashar C, Arend R, Barber E, Bradley K, Brooks R, Campos S, Chino J, Chon H, Crispens M, Damast S, Fisher C, Frederick P, Gaffney D, Gaillard S, Giuntoli R, Glaser S, Holmes J, Howitt B, Lea J, Mantia-Smaldone G, Mariani A, Mutch D, Nagel C, Nekhlyudov L, Podoll M, Rodabaugh K, Salani R, Schorge J, Siedel J, Sisodia R, Soliman P, Ueda S, Urban R, Wyse E, McMillian N, Aggarwal S, Espinosa S. NCCN Guidelines® Insights: Cervical Cancer, Version 1.2024. Journal Of The National Comprehensive Cancer Network 2023, 21: 1224-1233. PMID: 38081139, DOI: 10.6004/jnccn.2023.0062.Peer-Reviewed Original ResearchConceptsCervical cancerNCCN guidelinesNCCN Guidelines InsightsSystemic therapy recommendationsAdvanced cervical cancerMetastatic diseaseTreatment landscapeClinical outcomesDiagnostic workupHistopathologic classificationTherapy recommendationsCancerMolecular profileAspects of managementRecent updatesDiagnostic featuresGuidelinesWorkupStagingDiseaseRecurrentPathologyInvestigating the Relationship between the Dose to the Recto-Vaginal Reference Point and Vaginal Stenosis among Cervical Cancer Patients Treated at a North American Academic Institution
Adefres B, Wallington D, Tien C, Damast S. Investigating the Relationship between the Dose to the Recto-Vaginal Reference Point and Vaginal Stenosis among Cervical Cancer Patients Treated at a North American Academic Institution. International Journal Of Radiation Oncology • Biology • Physics 2023, 117: e501. DOI: 10.1016/j.ijrobp.2023.06.1746.Peer-Reviewed Original ResearchVaginal stenosisDose constraintsMedian doseMultivariable Cox proportional hazards regressionCox proportional hazards regressionCohort median ageAdvanced cervical cancerInterstitial needlesKaplan-Meier methodCervical cancer patientsProportional hazards regressionLog-rank testHR-CTV D90MATERIAL/METHODSImage-guided brachytherapyNorth American academic institutionsLACC patientsPrimary endpointCumulative incidenceOnly patientsPatient demographicsMedian ageCervical cancerCancer patientsSingle institutionPrognostic Impact of Mismatch Repair Deficiency on Stage I-II Endometrioid Endometrial Cancer Treated with Adjuvant Radiation Therapy: A Multi-Institutional Analysis
Sherwani Z, Alegun J, Russo A, Damast S, Albuquerque K, Nwachukwu C, Dyer M, Fields E, Beriwal S, Horne Z, Vergalasova I, Ohri N, Taunk N, Chino J, Kidd E, Leung E, Song J, Hathout L. Prognostic Impact of Mismatch Repair Deficiency on Stage I-II Endometrioid Endometrial Cancer Treated with Adjuvant Radiation Therapy: A Multi-Institutional Analysis. International Journal Of Radiation Oncology • Biology • Physics 2023, 117: s8. DOI: 10.1016/j.ijrobp.2023.06.217.Peer-Reviewed Original ResearchEndometrioid endometrial cancerEarly-stage endometrioid endometrial cancerExternal beam radiation therapyAdjuvant radiation therapyLymphovascular space invasionOverall survivalGrade 3Radiation therapyStage IMultivariate analysisWorse RFSWorse OSEndometrial cancerUnivariate analysisMulti-institutional retrospective cohort studyFIGO 2009 stage IRecurrence-free survival ratesCox proportional hazards modelPost-surgical stagingRetrospective cohort studyKaplan-Meier methodDeep myometrial invasionFIGO grade 1Proportional hazards modelBeam radiation therapyPO38 Clinical Outcomes Following Brachytherapy for Endometrial Cancer Patients with Narrow Vaginal Anatomy
Adefres B, Tien C, Damast S. PO38 Clinical Outcomes Following Brachytherapy for Endometrial Cancer Patients with Narrow Vaginal Anatomy. Brachytherapy 2023, 22: s84-s85. DOI: 10.1016/j.brachy.2023.06.139.Peer-Reviewed Original ResearchVaginal cuff brachytherapyVaginal recurrenceEndometrial cancerEC patientsVaginal surfaceClinical outcomesVaginal anatomyGrade 2Single-channel vaginal cylinderStage IVb endometrial cancerAdjuvant vaginal cuff brachytherapyConsecutive EC patientsEndometrial cancer patientsExcellent local controlKaplan-Meier methodExternal beam radiotherapyInsertional painBaseline painVaginal stenosisCTCAE v4.0Patient demographicsStage IIIAUrinary toxicityMedian ageMedian BMIRecent Key Studies in Cancers of the Uterine Corpus and Cervix: New Updates in Immunotherapy, the Microbiome, Bone Density, Quantifying Lymphovascular Invasion, and Hypofractionated Pelvic Radiation Therapy.
Harkenrider M, Fields E, Chopra S, Damast S, Kidd E, Chino J. Recent Key Studies in Cancers of the Uterine Corpus and Cervix: New Updates in Immunotherapy, the Microbiome, Bone Density, Quantifying Lymphovascular Invasion, and Hypofractionated Pelvic Radiation Therapy. International Journal Of Radiation Oncology • Biology • Physics 2023, 115: 269-275. PMID: 36621226, DOI: 10.1016/j.ijrobp.2022.07.1833.Peer-Reviewed Original ResearchUterine Neoplasms, Version 1.2023, NCCN Clinical Practice Guidelines in Oncology.
Abu-Rustum N, Yashar C, Arend R, Barber E, Bradley K, Brooks R, Campos S, Chino J, Chon H, Chu C, Crispens M, Damast S, Fisher C, Frederick P, Gaffney D, Giuntoli R, Han E, Holmes J, Howitt B, Lea J, Mariani A, Mutch D, Nagel C, Nekhlyudov L, Podoll M, Salani R, Schorge J, Siedel J, Sisodia R, Soliman P, Ueda S, Urban R, Wethington S, Wyse E, Zanotti K, McMillian N, Aggarwal S. Uterine Neoplasms, Version 1.2023, NCCN Clinical Practice Guidelines in Oncology. Journal Of The National Comprehensive Cancer Network 2023, 21: 181-209. PMID: 36791750, DOI: 10.6004/jnccn.2023.0006.Peer-Reviewed Original ResearchConceptsUterine neoplasmsNCCN guidelinesNCCN Clinical Practice GuidelinesPure endometrioid carcinomasUterine cancer casesClinical practice guidelinesFemale genital tractMesenchymal sarcomaEndometrial histologyEndometrioid cancerCommon malignancyEndometrial carcinomaUncommon subtypeEndometrioid carcinomaUterine cancerGenital tractCancer casesPractice guidelinesCarcinomaNeoplasmsCancerGuidelinesAdenocarcinomaEndometriumSarcomaThe Impact of Racial Disparities on Outcome in Patients With Stage IIIC Endometrial Carcinoma
Patrich T, Wang Y, Elshaikh M, Zhu S, Damast S, Li J, Fields E, Beriwal S, Keller A, Kidd E, Usoz M, Jolly S, Jaworski E, Leung E, Taunk N, Chino J, Russo A, Lea J, Lee L, Albuquerque K, Hathout L. The Impact of Racial Disparities on Outcome in Patients With Stage IIIC Endometrial Carcinoma. American Journal Of Clinical Oncology 2023, 46: 114-120. PMID: 36625449, DOI: 10.1097/coc.0000000000000975.Peer-Reviewed Original ResearchConceptsStage IIIC endometrial carcinomaRecurrence-free survivalNon-black patientsParaaortic lymph nodesGrade 3 tumorsBlack patientsOverall survivalEndometrial carcinomaWorse OSLymph nodesNonendometrioid histologyPositive paraaortic lymph nodesRetrospective multi-institutional studyKaplan-Meier methodMulti-institutional studySPSS version 27Adjuvant chemotherapyConcurrent chemoradiotherapyHazard ratioRFS ratesClinical outcomesRandomized trialsNonsignificant trendPatientsPrognostic covariates
2022
Brachytherapy impacts on sexual function: An integrative review of the literature focusing on cervical cancer
Chin C, Damast S. Brachytherapy impacts on sexual function: An integrative review of the literature focusing on cervical cancer. Brachytherapy 2022, 22: 30-46. PMID: 36567175, DOI: 10.1016/j.brachy.2022.10.012.Peer-Reviewed Original ResearchConceptsSexual morbidityCervical cancerSexual sequelaeImage-guided adaptive brachytherapyQuality of lifeSecondary preventionCurative treatmentDosimetric factorsCommon symptomsVaginal doseCancer patientsClose surveillanceSexual functionIndirect sequelaeSexual symptomsVaginal morbidityVaginal toxicitySexual dysfunctionAdaptive brachytherapySexual healthClinical interventionsMorbidityCritical organsSequelaeEffect relationshipImplementing a simulation-based curriculum for hybrid intracavitary/interstitial brachytherapy using a new, commercially available, US/MR/CT-compatible gynecologic phantom
Li J, Tien C, Kassick M, Peters G, Damast S. Implementing a simulation-based curriculum for hybrid intracavitary/interstitial brachytherapy using a new, commercially available, US/MR/CT-compatible gynecologic phantom. Brachytherapy 2022, 22: 157-165. PMID: 36528476, DOI: 10.1016/j.brachy.2022.11.006.Peer-Reviewed Original ResearchRacial Disparities in Patients with Stage IIIC Endometrial Cancer
Patrich T, Wang Y, Elshaikh M, Zhu S, Damast S, Li J, Fields E, Beriwal S, Keller A, Kidd E, Usoz M, Jolly S, Jaworski E, Leung E, Donovan E, Taunk N, Chino J, Russo A, Lea J, Lee L, Albuquerque K, Hathout L. Racial Disparities in Patients with Stage IIIC Endometrial Cancer. International Journal Of Radiation Oncology • Biology • Physics 2022, 114: e273-e274. DOI: 10.1016/j.ijrobp.2022.07.1283.Peer-Reviewed Original ResearchPositive paraaortic lymph nodesNon-black patientsRecurrence-free survivalExternal beam radiation therapyStage IIIC endometrial carcinomaNon-endometrioid histologyGrade 3 tumorsLymphovascular space invasionOverall survivalBlack patientsVaginal cuff brachytherapyEndometrial carcinomaCervical involvementWorse OSHazard ratioPropensity scoreStage IIIC endometrial cancerMulti-institutional cohort studyRetrospective multi-institutional cohort studyCox proportional hazards modelRacial disparitiesParaaortic lymph nodesKaplan-Meier methodProportional hazards modelBeam radiation therapyRadiation therapy in the definitive management of medically inoperable endometrial cancer
Chin C, Damast S. Radiation therapy in the definitive management of medically inoperable endometrial cancer. International Journal Of Gynecological Cancer 2022, 32: 323-331. PMID: 35256419, DOI: 10.1136/ijgc-2021-002532.Peer-Reviewed Original ResearchConceptsMultiparametric magnetic resonance imagingInoperable patientsEndometrial cancerImage-guided brachytherapyRadiation therapySystemic anti-tumor immune responseAnti-tumor immune responseThree-dimensional image-guided brachytherapyInoperable endometrial cancerDefinitive radiation therapyPoor surgical candidatesNovel systemic agentsRecent consensus guidelinesHigh-volume centersExtent of tumorRates of obesityMagnetic resonance imagingMedical inoperabilityLate morbiditySurgical candidatesSystemic agentsClinical stagingDefinitive managementOngoing trialsUterine sizeAn evaluation of prognostic factors, oncologic outcomes, and management for primary and recurrent squamous cell carcinoma of the vulva
Li JY, Arkfeld CK, Tymon-Rosario J, Webster E, Schwartz P, Damast S, Menderes G. An evaluation of prognostic factors, oncologic outcomes, and management for primary and recurrent squamous cell carcinoma of the vulva. Journal Of Gynecologic Oncology 2022, 33: 0. PMID: 34910394, PMCID: PMC8899873, DOI: 10.3802/jgo.2022.33.e13.Peer-Reviewed Original ResearchConceptsDisease-specific survivalSquamous cell carcinomaOverall survivalPositive marginsCell carcinomaNodal involvementPrognostic factorsStage IFive-year disease-specific survivalPrimary squamous cell carcinomaRecurrent squamous cell carcinomaFive-year RFSNode-positive patientsVulvar cancer patientsEscalation of treatmentConservative surgical approachKaplan-Meier estimatesLog-rank testCox proportional hazardsLocal RFSOverall RFSAdjuvant radiotherapyDistant recurrenceFree survivalMedian survivalImproving Radiation Therapy for Cervical Cancer
Kidd E, Harkenrider M, Damast S, Fields E, Chopra S, Chino J. Improving Radiation Therapy for Cervical Cancer. International Journal Of Radiation Oncology • Biology • Physics 2022, 112: 841-848. PMID: 35190051, DOI: 10.1016/j.ijrobp.2021.12.006.Peer-Reviewed Original ResearchSecondary Prevention, Not Secondary Importance: Embracing Survivorship Concerns and HRT After Cervical Cancer Radiation Therapy
Damast S, Chino J. Secondary Prevention, Not Secondary Importance: Embracing Survivorship Concerns and HRT After Cervical Cancer Radiation Therapy. International Journal Of Radiation Oncology • Biology • Physics 2022, 112: 414-416. PMID: 34998535, DOI: 10.1016/j.ijrobp.2021.09.028.Peer-Reviewed Original Research