2023
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
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 institutionPO38 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 BMI
2019
Literature Review of Vaginal Stenosis and Dilator Use in Radiation Oncology
Damast S, Jeffery DD, Son CH, Hasan Y, Carter J, Lindau ST, Jhingran A. Literature Review of Vaginal Stenosis and Dilator Use in Radiation Oncology. Practical Radiation Oncology 2019, 9: 479-491. PMID: 31302301, PMCID: PMC7944435, DOI: 10.1016/j.prro.2019.07.001.Peer-Reviewed Original ResearchConceptsVaginal dilator therapyVaginal stenosisPelvic radiation therapyRisk factorsRadiation therapyOutcomes of patientsRadiation-induced vaginal stenosisRadiation oncologyStrong risk factorCare of womenDilator therapyDilator useRT doseProspective dataSexual functionVaginal dilatorsVaginal changesOptimal durationRadiation oncologistsEarly manifestationStenosisLiterature reviewSearch termsProspective effortsPathophysiology
2018
Extended duration of dilator use beyond 1 year may reduce vaginal stenosis after intravaginal high-dose-rate brachytherapy
Stahl JM, Qian JM, Tien CJ, Carlson DJ, Chen Z, Ratner ES, Park HS, Damast S. Extended duration of dilator use beyond 1 year may reduce vaginal stenosis after intravaginal high-dose-rate brachytherapy. Supportive Care In Cancer 2018, 27: 1425-1433. PMID: 30187220, DOI: 10.1007/s00520-018-4441-5.Peer-Reviewed Original ResearchConceptsVaginal stenosisEndometrial carcinomaMultivariable Cox proportional hazardsMultivariable Cox regression analysisVD useAcademic tertiary referral centerTertiary referral centerCox regression analysisLog-rank testCox proportional hazardsDevelopment of gradeDilator usePelvic radiotherapyReferral centerNoncompliant patientsPrimary outcomeAdjuvant brachytherapyEC patientsConclusionsThe riskRate brachytherapyProportional hazardsOptimal durationPatientsBrachytherapyStudy period
2017
Impact of vaginal cylinder diameter on outcomes following brachytherapy for early stage endometrial cancer
Qian JM, Stahl JM, Young MR, Ratner E, Damast S. Impact of vaginal cylinder diameter on outcomes following brachytherapy for early stage endometrial cancer. Journal Of Gynecologic Oncology 2017, 28: 0. PMID: 29027402, PMCID: PMC5641534, DOI: 10.3802/jgo.2017.28.e84.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAdultAgedAged, 80 and overBody Mass IndexBrachytherapyConstriction, PathologicDatabases, FactualEndometrial NeoplasmsFemaleGastrointestinal DiseasesGravidityHumansHysterectomyLymph Node ExcisionMiddle AgedNeoplasm StagingOvariectomyRadiation InjuriesRadiotherapy, AdjuvantSalpingectomyTreatment OutcomeVaginaVaginal DiseasesConceptsVaginal brachytherapyVaginal symptomsLate grade 3 toxicityEarly-stage endometrial cancerNormal body mass indexAdjuvant vaginal brachytherapyGrade 3 toxicityShorter vaginal lengthStage endometrial cancerEndometrial cancer patientsBody mass indexRate of recurrenceAcute gastrointestinalTreatment tolerabilityVaginal stenosisEndometrial cancerVaginal lengthMass indexRecurrence rateCancer patientsVaginal toxicityTreatment characteristicsHigh riskSide effectsPatients
2015
Predictors 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