2018
Low Frequency of Lymph Node Metastases in Patients in the United States With Early-stage Gastric Cancers That Fulfill Japanese Endoscopic Resection Criteria
Hanada Y, Choi AY, Hwang JH, Draganov PV, Khanna L, Sethi A, Bartel MJ, Goel N, Abe S, De Latour RA, Park K, Melis M, Newman E, Hatzaras I, Reddy SS, Farma JM, Liu X, Schlachterman A, Kresak J, Trapp G, Ansari N, Schrope B, Lee JY, Dhall D, Lo S, Jamil LH, Burch M, Gaddam S, Gong Y, Del Portillo A, Tomizawa Y, Truong CD, Brewer Gutierrez OI, Montgomery E, Johnston FM, Duncan M, Canto M, Ahuja N, Lennon AM, Ngamruengphong S. Low Frequency of Lymph Node Metastases in Patients in the United States With Early-stage Gastric Cancers That Fulfill Japanese Endoscopic Resection Criteria. Clinical Gastroenterology And Hepatology 2018, 17: 1763-1769. PMID: 30471457, DOI: 10.1016/j.cgh.2018.11.031.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAgedAged, 80 and overCarcinoma, Signet Ring CellEndoscopic Mucosal ResectionFemaleGastrectomyHumansJapanLymph NodesLymphatic MetastasisMaleMiddle AgedNeoplasm GradingNeoplasm InvasivenessNeoplasm StagingPractice Guidelines as TopicRetrospective StudiesStomach NeoplasmsTumor BurdenUnited StatesConceptsFrequency of lymphEarly gastric cancerEndoscopic resectionLymph node metastasisLymph nodesGastric cancerLymphovascular invasionNode metastasisGastric adenocarcinomaEarly gastric cancer lesionsEarly-stage gastric cancerEndoscopic resection criteriaLymph node dissectionTertiary care centerRisk of lymphRisk of metastasisGastric cancer lesionsDefinitive therapyNode dissectionResection criteriaSurgical resectionAsian patientsRetrospective studySubmucosal invasionRisk factorsMinimally 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
Neutrophil-to-lymphocyte Ratio is a Predictive Marker for Invasive Malignancy in Intraductal Papillary Mucinous Neoplasms of the Pancreas
Gemenetzis G, Bagante F, Griffin JF, Rezaee N, Javed AA, Manos LL, Lennon AM, Wood LD, Hruban RH, Zheng L, Zaheer A, Fishman EK, Ahuja N, Cameron JL, Weiss MJ, He J, Wolfgang CL. Neutrophil-to-lymphocyte Ratio is a Predictive Marker for Invasive Malignancy in Intraductal Papillary Mucinous Neoplasms of the Pancreas. Annals Of Surgery 2017, 266: 339-345. PMID: 27631774, DOI: 10.1097/sla.0000000000001988.Peer-Reviewed Original ResearchConceptsIntraductal papillary mucinous neoplasmPapillary mucinous neoplasmInvasive carcinomaPredictive nomogramLymphocyte ratioMucinous neoplasmsInvasive malignancyPredictive markerMain pancreatic duct dilatationEnhanced solid componentLymphocyte ratio valuesIndependent predictive markerFurther prospective studiesPancreatic duct dilatationInflammatory markersSurgical resectionDuct dilatationNLR valuesOverall survivalProspective studyPancreatic cancerC-indexCarcinomaMultivariate analysisPatients
2016
Locally advanced primary recto-sigmoid cancers: Improved survival with multivisceral resection
Laurence G, Ahuja V, Bell T, Grim R, Ahuja N. Locally advanced primary recto-sigmoid cancers: Improved survival with multivisceral resection. The American Journal Of Surgery 2016, 214: 432-436. PMID: 28082009, DOI: 10.1016/j.amjsurg.2016.12.018.Peer-Reviewed Original ResearchConceptsMultivisceral resectionAdvanced colorectal cancerColorectal cancerCancer patientsYear survivalNon-metastatic colorectal cancerRadiation treatmentRecto-sigmoid cancerFive-year survivalSignificant associated morbidityKaplan-Meier analysisExtensive surgical proceduresGreatest survival advantageEligible patientsAssociated morbiditySelect patientsMeier analysisStandard surgeryRadical operationSEER dataAdjacent organsSurgical proceduresSurvival advantagePatientsSurgical specialistsPatterns of PD-L1 expression and CD8 T cell infiltration in gastric adenocarcinomas and associated immune stroma
Thompson ED, Zahurak M, Murphy A, Cornish T, Cuka N, Abdelfatah E, Yang S, Duncan M, Ahuja N, Taube JM, Anders RA, Kelly RJ. Patterns of PD-L1 expression and CD8 T cell infiltration in gastric adenocarcinomas and associated immune stroma. Gut 2016, 66: 794. PMID: 26801886, PMCID: PMC4958028, DOI: 10.1136/gutjnl-2015-310839.Peer-Reviewed Original ResearchConceptsPD-L1 expressionProgression-free survivalEpstein-Barr virusT-cell densityImmune stromaOverall survivalPD-L1T cellsAdaptive immune resistance mechanismHigh PD-L1 expressionMembranous PD-L1 expressionStromal PD-L1 expressionCD8 T cell infiltrationWorse progression-free survivalImmune resistance mechanismsImmune checkpoint inhibitorsPD-L1 positivityPD-L1 statusGastro-oesophageal junctionImmune-based therapiesT cell infiltrationPercentage of tumorsTumor-stromal interfaceCD8 densityCD8 infiltration
2015
Intraductal papillary mucinous neoplasm (IPMN) with high-grade dysplasia is a risk factor for the subsequent development of pancreatic ductal adenocarcinoma
Rezaee N, Barbon C, Zaki A, He J, Salman B, Hruban RH, Cameron JL, Herman JM, Ahuja N, Lennon AM, Weiss MJ, Wood LD, Wolfgang CL. Intraductal papillary mucinous neoplasm (IPMN) with high-grade dysplasia is a risk factor for the subsequent development of pancreatic ductal adenocarcinoma. Hepato Pancreato Biliary 2015, 18: 236-246. PMID: 27017163, PMCID: PMC4814593, DOI: 10.1016/j.hpb.2015.10.010.Peer-Reviewed Original ResearchMeSH KeywordsAgedCarcinoma, Pancreatic DuctalDatabases, FactualDisease-Free SurvivalFemaleHumansKaplan-Meier EstimateLymphatic MetastasisMaleMiddle AgedNeoplasm GradingNeoplasm InvasivenessNeoplasms, Cystic, Mucinous, and SerousNeoplasms, Second PrimaryPancreatectomyPancreatic NeoplasmsProportional Hazards ModelsRisk AssessmentRisk FactorsTime FactorsTreatment OutcomeConceptsIntraductal papillary mucinous neoplasmHigh-grade dysplasiaPancreatic ductal adenocarcinomaNon-invasive intraductal papillary mucinous neoplasmsIntermediate-grade dysplasiaPapillary mucinous neoplasmRemnant pancreasVascular invasionMucinous neoplasmsDuctal adenocarcinomaInvasive pancreatic ductal adenocarcinomaMedian overall survivalLymph node metastasisRate of progressionSubsequent developmentIntermediate dysplasiaPancreatic resectionOverall survivalNode metastasisPerineural invasionMalignant entitiesRisk factorsPatientsDysplasiaPancreas
2010
Histopathologic Basis for the Favorable Survival after Resection of Intraductal Papillary Mucinous Neoplasm-Associated Invasive Adenocarcinoma of the Pancreas
Poultsides GA, Reddy S, Cameron JL, Hruban RH, Pawlik TM, Ahuja N, Jain A, Edil BH, Iacobuzio-Donahue CA, Schulick RD, Wolfgang CL. Histopathologic Basis for the Favorable Survival after Resection of Intraductal Papillary Mucinous Neoplasm-Associated Invasive Adenocarcinoma of the Pancreas. Annals Of Surgery 2010, 251: 470-476. PMID: 20142731, PMCID: PMC3437748, DOI: 10.1097/sla.0b013e3181cf8a19.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinoma, MucinousAdultAgedAged, 80 and overFemaleHumansMaleMiddle AgedNeoplasm InvasivenessPancreatic NeoplasmsRetrospective StudiesSurvival RateConceptsIntraductal papillary mucinous neoplasmPancreatic ductal adenocarcinomaResection of IPMNsAdverse pathologic characteristicsInvasive pancreatic adenocarcinomaAdvanced T stageLymph node metastasisInvasive adenocarcinomaPancreatic adenocarcinomaFavorable survivalNode metastasisPathologic characteristicsT stageVascular invasionRegional lymph node metastasisFavorable biologic behaviorMicroscopic margin involvementPancreatic resection databasePositive resection marginsCox regression analysisHigh tumor gradePapillary mucinous neoplasmPoor tumor differentiationCurative intentMargin involvement
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 databaseSurgical Management of Solid-Pseudopapillary Neoplasms of the Pancreas (Franz or Hamoudi Tumors): A Large Single-Institutional Series
Reddy S, Cameron JL, Scudiere J, Hruban RH, Fishman EK, Ahuja N, Pawlik TM, Edil BH, Schulick RD, Wolfgang CL. Surgical Management of Solid-Pseudopapillary Neoplasms of the Pancreas (Franz or Hamoudi Tumors): A Large Single-Institutional Series. Journal Of The American College Of Surgeons 2009, 208: 950-957. PMID: 19476869, PMCID: PMC3109868, DOI: 10.1016/j.jamcollsurg.2009.01.044.Peer-Reviewed Original ResearchConceptsSolid pseudopapillary neoplasmMalignant potentialFormal surgical resectionMedian tumor sizeOutcomes of patientsLymph node metastasisRare pancreatic tumorR1 resectionAbdominal painR0 resectionR2 resectionInstitutional seriesMost patientsSurgical resectionUnrelated causesClinicopathologic characteristicsComplete resectionMedian ageNode metastasisDistant metastasisPerineural invasionSurgical managementCommon symptomsLongterm outcomesTumor size
2008
Is There a Difference in Survival Between Right- Versus Left-Sided Colon Cancers?
Meguid RA, Slidell MB, Wolfgang CL, Chang DC, Ahuja N. Is There a Difference in Survival Between Right- Versus Left-Sided Colon Cancers? Annals Of Surgical Oncology 2008, 15: 2388. PMID: 18622647, PMCID: PMC3072702, DOI: 10.1245/s10434-008-0015-y.Peer-Reviewed Original ResearchConceptsRight-sided colon cancerLeft-sided colon cancerProportional hazards regression analysisHazards regression analysisColon cancerMedian survivalCox proportional hazards regression analysisLongitudinal population-based databaseLong-term survival outcomesEnd Results Program databaseInvasive colon adenocarcinomaRight-sided cancersOverall median survivalLeft-sided cancersYear of diagnosisPopulation-based databaseRetrospective survival analysisSubset of subjectsRegression analysisSEER databaseSurgical resectionLymph nodesWorse prognosisSurvival outcomesTumor size
2007
The Role of Ultrasound-Guided Fine-Needle Aspiration of Axillary Nodes in the Staging of Breast Cancer
Jain A, Haisfield-Wolfe ME, Lange J, Ahuja N, Khouri N, Tsangaris T, Zhang Z, Balch C, Jacobs LK. The Role of Ultrasound-Guided Fine-Needle Aspiration of Axillary Nodes in the Staging of Breast Cancer. Annals Of Surgical Oncology 2007, 15: 462-471. PMID: 17985188, DOI: 10.1245/s10434-007-9623-1.Peer-Reviewed Original ResearchConceptsUltrasound-guided fine-needle aspirationSentinel node dissectionAxillary node dissectionPreoperative ultrasound-guided fine-needle aspirationPositive predictive valuePrimary tumor featuresFine-needle aspirationAxillary nodesNode dissectionTumor featuresAbnormal axillary nodesBreast cancer patientsLymph node pathologyPrimary breast tumorsRole of ultrasoundSuspicious nodesNeoadjuvant chemotherapyNeoadjuvant therapyComplete responseDefinitive managementCancer patientsBreast cancerPredictive valueBreast tumorsUSFNA results