Impact of Adjuvant Radiation Therapy in Patients With Male Breast Cancer: A Multicenter International Analysis.

Autor:	Rolf D; Department of Radiation Oncology, University Hospital of Münster, Münster, Germany., Elsayad K; Department of Radiation Oncology, University Hospital of Münster, Münster, Germany., Meheissen MAM; Alexandria Clinical Oncology Department, Alexandria University, Alexandria, Egypt.; Specialized Universal Network of Oncology (SUN), Alexandria, Egypt., Elkerm Y; Specialized Universal Network of Oncology (SUN), Alexandria, Egypt.; Cancer Management and Research Department, Medical Research Institute, Alexandria University, Alexandria, Egypt., Opitz C; Department of Gynecology & Obstetrics, University Hospital Münster, Münster, Germany., Radke I; Department of Gynecology & Obstetrics, University Hospital Münster, Münster, Germany., Bremer A; Department of Oncology, St. Franziskus-Hospital, Münster, Germany., Hülskamp A; Department for Breast Diseases, St. Franziskus-Hospital, Münster, Germany., Elsaka R; Alexandria Clinical Oncology Department, Alexandria University, Alexandria, Egypt.; Specialized Universal Network of Oncology (SUN), Alexandria, Egypt., Ismail HM; Specialized Universal Network of Oncology (SUN), Alexandria, Egypt., Elfaham E; Specialized Universal Network of Oncology (SUN), Alexandria, Egypt., Ismail AA; Alexandria Clinical Oncology Department, Alexandria University, Alexandria, Egypt.; Specialized Universal Network of Oncology (SUN), Alexandria, Egypt., Elmansy H; Specialized Universal Network of Oncology (SUN), Alexandria, Egypt.; Cancer Management and Research Department, Medical Research Institute, Alexandria University, Alexandria, Egypt., Wardelmann E; Gerhard-Domagk-Institute of Pathology, University Hospital Münster, Münster, Germany., Elsaid AA; Alexandria Clinical Oncology Department, Alexandria University, Alexandria, Egypt.; Specialized Universal Network of Oncology (SUN), Alexandria, Egypt., Krause-Bergmann B; Department for Breast Diseases, St. Franziskus-Hospital, Münster, Germany., Tio J; Department of Gynecology & Obstetrics, University Hospital Münster, Münster, Germany., Eich HT; Department of Radiation Oncology, University Hospital of Münster, Münster, Germany., Micke O; Department of Radiotherapy and Radiation Oncology, Franziskus Hospital Bielefeld, Bielefeld, Germany.
Jazyk:	angličtina
Zdroj:	Advances in radiation oncology [Adv Radiat Oncol] 2020 Feb 20; Vol. 5 (3), pp. 345-349. Date of Electronic Publication: 2020 Feb 20 (Print Publication: 2020).
DOI:	10.1016/j.adro.2020.01.006
Abstrakt:	Purpose: Breast cancer in men accounts for approximately 1% of all breast cancers. Breast cancer trials have routinely excluded men. The aim of this analysis was to determine the effect of different treatment factors, in particular, postoperative radiation therapy (RT) on long-term outcomes. Methods and Materials: Seventy-one patients with male breast cancer treated in 5 closely cooperating institutions between 2003 and 2019 were analyzed. Results: Almost all patients (95%) underwent surgical resection. Forty-two patients (59%) received chemotherapy, and 59 (83%) received adjuvant hormonal therapy. Of the 71 patients, 52 (73%) were treated with RT. The rate of recurrence was 20% in the whole cohort, with a locoregional recurrence rate of 3%. In the entire group, the 5-year local control (LC) was 95%, whereas 5-year progression-free survival (PFS) and 5-year overall survival (OS) were 62% and 96%, respectively. There was a lower rate of relapses after adjuvant RT (19% vs 32%, P = .05) without in-field relapse after postoperative RT (0%) versus 10% in patients without RT ( P = .02). In the multivariate analysis performed, hormonal therapy administration was found to have a possible significant effect on LC and PFS. Administration of adjuvant RT and stage affect PFS. In patients who received RT, there were no grade 3 or 4 acute toxicities. Conclusions: Adjuvant RT is an effective and safe treatment for male breast cancer patients with no infield relapses and better PFS. Hormonal therapy administration was found to have a possible effect on LC and PFS. (© 2020 The Author(s).)
Databáze:	MEDLINE
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