Tıp Fakültesi / Faculty of Medicine

Permanent URI for this collectionhttps://hdl.handle.net/11727/1403

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Subject: search.filters.subject.Endometrium cancer

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    Dosimetric comparison of vaginal vault brachytherapy vs applicator-guided stereotactic body radiotherapy with volumetric modulated arc therapy and helical tomotherapy for endometrium cancer patients
    (2019) Yildirim, Berna Akkus; Dolek, Yemliha; Guler, Ozan Cem; Arslan, Gungor; Onal, Cem; 0000-0001-6908-3412; 0000-0001-6661-4185; 0000-0002-2742-9021; 30551844; AAC-5654-2020; D-5195-2014
    We performed this dosimetric study to compare a nonstandard volumetric modulated arc therapy (VMAT) and helical tomotherapy (HT) techniques with high-dose rate (HDR) brachytherapy (BRT) plan of vaginal vault in patients with postoperative endometrial cancer (EC). Twelve postoperative patients with early stage EC were included in this study. Three plans were performed for each patient; dosimetric and radiobiological comparisons were made using dose-volume histograms and equivalent dose for determining the planning target volume (PTV) coverages in brachytherapy and external beam radiotherapy, and organs-at-risk (OARs) doses between three different delivery techniques. All the plans achieved adequate dose coverage for PTV; however, the VMAT plan yielded better dose conformity, and the HT plan showed better homogeneity for target volume. With respect to the OARs, the bladder D-2cc was significantly lower in the BRT plan than in the VMAT and HT plans, with the highest bladder D-2cc value being observed in the HT plan. However, no difference was observed in the rectum D-2cc of the three plans. Other major advantages of the BRT plan over the VMAT and HT plans were the relatively lower body integral doses and femoral head doses as well as the fact that the integral doses were significantly lower in the BRT plan than in the VMAT and HT plans. This is the first dosimetric comparison of vaginal vault treatment for EC with BRT, VMAT, and HT plans. Our analyses showed the feasibility of stereotactic body radiotherapy technique as an alternative to HDR-BRT for postoperative management of EC patients. (C) 2018 American Association of Medical Dosimetrists. Published by Elsevier Inc. All rights reserved.
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    Treatment outcomes of early stage endometrial cancer patients: single center experience
    (2019) Sedef, Ali Murat; Karaduman, Didem; Besen, Ali Ayberk; Mertsoylu, Huseyin; Kose, Fatih
    Purpose: The aim of this study was to evaluate clinicopathological characteristics and treatment outcomes of early stages endometrial cancer patients in our center. Materials and Methods: This study was a hospital-based retrospective observational case-series study. 116 patients were included in the study from Baskent University Department of Medical Oncology and Gynecological Oncology between the years of 2009-2015. De-novo metastatic patients were not included in the study. Results: The median age of the patients was 58 (range 27-81) years. All of patients had European Cooperative Oncology Group (ECOG) performance score 0 (n:116). Endometrioid histology was the most common histopathological subtype (n:103, 88%). All of the patients were in local and local advanced stage. The significant percentage of patients had grade 2 tumor (n:55, 47.4%). Myometrial invasion was less than 50% in 78 patients (67.2 %). The median follow-up time was 61 months and 8 (6.9%) patients died. All patients underwent standard surgical staging with standard lymphadenectomy. Overall survival (OS) was not reached. There were 14 patients (12.1 %) and 34 patients (29.3 %) treated with adjuvant chemotherapy and radiotherapy, respectively. Conclusion: Though endometrial cancer is the most common gynecological tumors in women, cure rate is very high. Relapse rate was 6 % (7 patients) and most of the relapse were local, 71.4% (5 patients)