2018
Resection of retroperitoneal sarcoma en‐bloc with inferior vena cava: 20 year outcomes of a single institution
Blair AB, Reames BN, Singh J, Gani F, Overton HN, Beaulieu RJ, Lum YW, Black JH, Johnston FM, Ahuja N. Resection of retroperitoneal sarcoma en‐bloc with inferior vena cava: 20 year outcomes of a single institution. Journal Of Surgical Oncology 2018, 118: 127-137. PMID: 29878363, PMCID: PMC6220674, DOI: 10.1002/jso.25096.Peer-Reviewed Original ResearchMinimally Invasive Versus Open Primary Resection for Retroperitoneal Soft Tissue Sarcoma: A Propensity-Matched Study From the National Cancer Database
Gani F, Goel U, Blair AB, Singh J, Overton HN, Meyer CF, Canner JK, Pawlik TM, Ahuja N, Johnston FM. Minimally Invasive Versus Open Primary Resection for Retroperitoneal Soft Tissue Sarcoma: A Propensity-Matched Study From the National Cancer Database. Annals Of Surgical Oncology 2018, 25: 2209-2217. PMID: 29855832, PMCID: PMC8383095, DOI: 10.1245/s10434-018-6538-y.Peer-Reviewed Original ResearchConceptsRetroperitoneal soft tissue sarcomaNational Cancer DatabaseSoft tissue sarcomasUse of MISPostoperative mortalityPrimary resectionOverall survivalClinical outcomesTissue sarcomasCancer DatabaseCox proportional hazards modelShorter hospital lengthProportional hazards modelHospital lengthInvasive VersusMultivariable logisticPelvic cancerShorter LOSOpen surgeryOperative approachCommunity hospitalInclusion criteriaSmall tumorsTreatment groupsHazards model
2017
Postoperative complications following intraoperative radiotherapy in abdominopelvic malignancy: A single institution analysis of 113 consecutive patients
Abdelfatah E, Page A, Sacks J, Pierorazio P, Bivalacqua T, Efron J, Terezakis S, Gearhart S, Fang S, Safar B, Pawlik TM, Armour E, Hacker‐Prietz A, Herman J, Ahuja N. Postoperative complications following intraoperative radiotherapy in abdominopelvic malignancy: A single institution analysis of 113 consecutive patients. Journal Of Surgical Oncology 2017, 115: 883-890. PMID: 28252805, PMCID: PMC5572190, DOI: 10.1002/jso.24597.Peer-Reviewed Original ResearchConceptsExternal beam radiation therapyPostoperative complication rateIntraoperative radiotherapyComplication rateInstitution experienceGrade IIAcceptable perioperative morbidityComplications grade IICurative-intent resectionPostoperative surgical complicationsClavien-Dindo scaleMost common diagnosesMargin-negative resectionSingle-institution analysisJohns Hopkins HospitalBeam radiation therapyAbdominopelvic malignanciesRadiotherapy variablesLocoregional controlPerioperative complicationsPerioperative deathsPerioperative morbidityPostoperative complicationsWound complicationsSurgical complications
2016
Predictors of improved survival for patients with retroperitoneal sarcoma
Giuliano K, Nagarajan N, Canner JK, Wolfgang CL, Bivalacqua T, Terezakis S, Herman J, Schneider EB, Ahuja N. Predictors of improved survival for patients with retroperitoneal sarcoma. Surgery 2016, 160: 1628-1635. PMID: 27495850, DOI: 10.1016/j.surg.2016.05.041.Peer-Reviewed Original ResearchConceptsRetroperitoneal sarcomaMultivariable survival analysisSurvival analysisRetroperitoneal sarcoma patientsEnd Results (SEER) databaseOperative resectionImproved survivalLymph nodesSurvival benefitDistant metastasisHistologic typeResults databaseSarcoma patientsRare tumorCancer DatabaseLonger survivalPatientsSarcomaSurvivalParametric survival functionsLocal extensionFurther studiesHigh rateResectionRecurrenceLong‐term outcomes in treatment of retroperitoneal sarcomas: A 15 year single‐institution evaluation of prognostic features
Abdelfatah E, Guzzetta AA, Nagarajan N, Wolfgang CL, Pawlik TM, Choti MA, Schulick R, Montgomery EA, Meyer C, Thornton K, Herman J, Terezakis S, Frassica D, Ahuja N. Long‐term outcomes in treatment of retroperitoneal sarcomas: A 15 year single‐institution evaluation of prognostic features. Journal Of Surgical Oncology 2016, 114: 56-64. PMID: 27076350, PMCID: PMC4917421, DOI: 10.1002/jso.24256.Peer-Reviewed Original ResearchConceptsCompartmental resectionRPS patientsSurgical resectionPrognostic factorsR0/R1 marginsR0/R1 resectionEn bloc surgical resectionBloc surgical resectionCornerstone of therapyMainstay of treatmentFive-year survivalRetrospective chart reviewPresence of metastasesEn bloc resectionExtent of resectionConnective tissue tumorsJohns Hopkins HospitalWarrants further investigationR1 resectionRetroperitoneal sarcomaChart reviewMedian survivalR1 marginsDistal recurrenceLocal recurrence
2009
Predictors of Survival After Resection of Retroperitoneal Sarcoma
Nathan H, Raut CP, Thornton K, Herman JM, Ahuja N, Schulick RD, Choti MA, Pawlik TM. Predictors of Survival After Resection of Retroperitoneal Sarcoma. Annals Of Surgery 2009, 250: 970-976. PMID: 19644351, PMCID: PMC3099434, DOI: 10.1097/sla.0b013e3181b25183.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overChildChild, PreschoolFemaleFollow-Up StudiesHumansInfantInfant, NewbornKaplan-Meier EstimateMaleMiddle AgedNeoplasm InvasivenessNeoplasm StagingPostoperative PeriodPrognosisProportional Hazards ModelsRetroperitoneal NeoplasmsRetrospective StudiesRisk FactorsSarcomaSEER ProgramSurvival RateTime FactorsUnited StatesYoung AdultConceptsPrimary retroperitoneal sarcomaRetroperitoneal sarcomaPredictors of survivalAJCC staging systemTumor sizeStaging systemRPS resectionHistological subtypesCurrent AJCC staging systemPatients Undergoing ResectionDiscriminatory abilityEnd Results (SEER) databaseAmerican Joint CommitteeCancer (AJCC) staging systemLymph node metastasisModerate discriminatory abilityMalignant fibrous histiocytomaProportional hazards modelPoor discriminatory abilityPrevalent histologyUndergoing resectionNode metastasisAJCC stageMultivariable analysisResults database
2008
Management of Retroperitoneal Sarcomas
Hueman MT, Herman JM, Ahuja N. Management of Retroperitoneal Sarcomas. Surgical Clinics Of North America 2008, 88: 583-597. PMID: 18514700, DOI: 10.1016/j.suc.2008.03.002.Peer-Reviewed Original ResearchMeSH KeywordsCombined Modality TherapyHumansMagnetic Resonance ImagingNeoplasm Recurrence, LocalNeoplasm StagingRetroperitoneal NeoplasmsSarcomaTomography, X-Ray ComputedConceptsRetroperitoneal sarcomaLocal recurrenceMorbidity of therapyDistant metastatic diseaseAggressive surgical approachCurative treatment optionManagement of patientsHigh-grade lesionsMetastatic diseaseSurgical therapyTherapeutic challengeSurgical approachTreatment optionsExtent of invasionDisease controlSarcomaCommon typePatientsRecurrenceTherapyMorbidityLesionsManagementDiseaseDiagnosisRetroperitoneal masses with associated human chorionic gonadotropin production: Report of two cases
Duffield AS, Jarrar P, Shum C, Ahuja N, Yeo CJ, Sokoll LJ. Retroperitoneal masses with associated human chorionic gonadotropin production: Report of two cases. Clinica Chimica Acta 2008, 395: 166-169. PMID: 18505680, DOI: 10.1016/j.cca.2008.04.030.Peer-Reviewed Original ResearchConceptsHuman chorionic gonadotropinSerum human chorionic gonadotropinSerum hCG concentrationsRetroperitoneal massHCG concentrationsEpidermoid cystHCG secretionHuman chorionic gonadotropin productionCancer antigen 19Course of diseaseChorionic gonadotropin productionBenign epidermoid cystPancreatic ductal adenocarcinomaPathologic examinationAntigen 19Gonadotropin productionCyst liningMalignant neoplasmsDisease progressionDuctal adenocarcinomaPancreatic adenocarcinomaImmunohistochemical stainingChorionic gonadotropinPatientsCysts
2007
The role of radiation in retroperitoneal sarcomas: a surgical perspective
Pawlik TM, Ahuja N, Herman JM. The role of radiation in retroperitoneal sarcomas: a surgical perspective. Current Opinion In Oncology 2007, 19: 359-366. PMID: 17545800, DOI: 10.1097/cco.0b013e328122d757.Peer-Reviewed Original ResearchMeSH KeywordsChemotherapy, AdjuvantCombined Modality TherapyHumansIntraoperative CarePreoperative CareRetroperitoneal NeoplasmsSarcomaConceptsExternal beam radiation therapyBeam radiation therapyIntraoperative radiation therapyLocal recurrence rateRadiation therapyRetroperitoneal sarcomaRecurrence rateAdjuvant external beam radiation therapyLocal recurrence-free survivalPreoperative external beam radiation therapyRadiation-related morbidityRetroperitoneal sarcoma patientsLocal control rateLocal-regional controlPreoperative radiation therapyRecurrence-free survivalTiming of administrationSurgical patientsTumor resectabilitySarcoma patientsTechniques of deliveryControl rateSurgical perspectiveAdditional toxicityRecent studies