Assessment of tumor characteristics and factors affecting survival in patients with primary metastatic breast carcinoma: a multicenter study of the Anatolian society of medical oncology

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dc.authorid0000-0002-1372-4791en_US
dc.authorid0000-0002-6839-2632
dc.contributor.authorÜyetürk, Ümmügül
dc.contributor.authorÖksüzoğlu, Berna
dc.contributor.authorAkman, Tülay
dc.contributor.authorTürker, İbrahim
dc.contributor.authorŞener, Nur
dc.date.accessioned2021-06-23T19:36:08Z
dc.date.available2021-06-23T19:36:08Z
dc.date.issued2014
dc.departmentBAİBÜ, Tıp Fakültesi, Dahili Tıp Bilimleri Bölümüen_US
dc.description.abstractPrimary metastatic breast cancer (PMBC) comprises 3-10 % of all BCs. PMBC is a heterogeneous disease. To date, little is known about the tumor characteristics, treatment results, and overall survival ( OS) of patients with PMBC. Patients were considered to have PMBC if distant metastasis was evident within 3 months of the initial diagnosis of BC. Between September 2007 and April 2013, 466 PMBC patients were included in this study and analyzed retrospectively. The median age of the patients was 50 (18- 90) years. Bone/ soft tissue metastases were more frequent in the hormone receptor (HR)(+) human epidermal growth factor receptor ( HER) 2(-) group compared with the HR(-) HER2(-) and HR(-) HER2(-) groups ( p < 0.001), whereas visceral organ metastasis was more frequent in the HR(-) HER2(-) and HR(-) HER2(-) groups ( p < 0.001). The OS was affected by Eastern Cooperative Oncology Group performance status, tumor histology, receptor status, and the site of metastasis ( p < 0.001, p < 0.001, p < 0.001, and p = 0.011, respectively). According to the first-line systemic treatment choices of the patients, the longest median OS was observed in the HR(?) HER2(-) group who received hormonotherapy combined with trastuzumab after chemotherapy ( 86 months, 95 % CI 23.8-148.1) and the shortest median OS was observed in the HR(-) HER2(-) group who received chemotherapy only ( 24 months, 95 % CI 17.9-30.0) ( p < 0.001). Bisphosphonate therapy or radiotherapy had no significant effect on OS ( p = 0.733, 0.603). In multivariate analysis, hormonotherapy, chemotherapy + trastuzumab, trastuzumab + hormonotherapy following chemotherapy, and surgery were the most important prognostic factors for OS, respectively ( p < 0.001, p = 0.025, p = 0.027, p = 0.029). The general characteristics of the primary tumor are important for the prognosis and survival of patients with PMBC. Interestingly, patients who underwent primary breast tumor surgery, even those at the metastatic stage upon admission, had the longest survival.en_US
dc.identifier.doi10.1007/s12032-014-0929-0
dc.identifier.issn1357-0560
dc.identifier.issn1559-131X
dc.identifier.issue4en_US
dc.identifier.pmid24659267en_US
dc.identifier.scopus2-s2.0-84896420439en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1007/s12032-014-0929-0
dc.identifier.urihttps://hdl.handle.net/20.500.12491/7936
dc.identifier.volume31en_US
dc.identifier.wosWOS:000334185200020en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorÜyetürk, Ümmügül
dc.language.isoenen_US
dc.publisherHumana Press Incen_US
dc.relation.ispartofMedical Oncologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPrimary Metastatic Breast Carcinomaen_US
dc.subjectTreatmenten_US
dc.subjectOperationen_US
dc.subjectSurvivalen_US
dc.titleAssessment of tumor characteristics and factors affecting survival in patients with primary metastatic breast carcinoma: a multicenter study of the Anatolian society of medical oncologyen_US
dc.typeArticleen_US

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