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Permanent URI for this collectionhttps://hdl.handle.net/11443/932

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Author: search.filters.author.Gurdal, Sibel Ozkan

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    Management of endocrine surgical disorders during COVID-19 pandemic: expert opinion for non-surgical options
    (SPRINGER-VERLAG ITALIA SRL, 2022-01-01) Agcaoglu, Orhan; Sezer, Atakan; Makay, Ozer; Erdogan, Murat Faik; Bayram, Fahri; Guldiken, Sibel; Raffaelli, Marco; Sonmez, Yusuf Alper; Lee, Yong-Sang; Vamvakidis, Kyriakos; Mihai, Radu; Duh, Quan-Yang; Akinci, Baris; Alagol, Faruk; Almquist, Martin; Barczynski, Marcin; Bayraktaroglu, Taner; Berber, Eren; Bukey, Yusuf; Cakmak, Guldeniz Karadeniz; Canturk, Nuh Zafer; Canturk, Zeynep; Celik, Mehmet; Celik, Ozlem; Ceyhan, Banu Ozturk; Cherenko, Sergii; Clerici, Thomas; Coombes, David Scott; Demircan, Orhan; Deyneli, Oguzhan; Dionigi, Gianlorenzo; Emre, Ali Ugur; Erbil, Yesim; Filiz, Ali Ilker; Gozu, Hulya Iliksu; Gurdal, Sibel Ozkan; Gurleyik, Gunay; Haciyanli, Mehmet; Kebudi, Abut; Kim, Seokmo; Koutelidakis, Giannis; Kuru, Bekir; Mert, Meral; Oruk, Guzide Gonca; Ozbas, Serdar; Palazzo, Fausto; Pandev, Rumen; Riss, Phillip; Sabuncu, Tevfik; Sahin, Ibrahim; Sakman, Gurhan; Saygili, Fusun; Senyurek, Yasemin Giles; Sleptsov, Ilya; Van Slycke, Sam; Teksoz, Serkan; Terzioglu, Tarik; Tezelman, Serdar; Tunca, Fatih; Ugurlu, Mustafa Umit; Uludag, Mehmet; Villar-del-Moral, Jesus; Vriens, Menno; Yazici, Dilek
    Purpose The COVID-19 pandemic brought unprecedented conditions for overall health care systems by restricting resources for non-COVID-19 patients. As the burden of the disease escalates, routine elective surgeries are being cancelled. The aim of this paper was to provide a guideline for management of endocrine surgical disorders during a pandemic. Methods We used Delphi method with a nine-scale Likert scale on two rounds of voting involving 64 experienced eminent surgeons and endocrinologists who had the necessary experience to provide insight on endocrine disorder management. All voting was done by email using a standard questionnaire. Results Overall, 37 recommendations were voted on. In two rounds, all recommendations reached an agreement and were either endorsed or rejected. Endorsed statements include dietary change in primary hyperparathyroidism, Cinacalcet treatment in secondary hyperparathyroidism, alpha-blocker administration for pheochromocytoma, methimazole +/- beta-blocker combination for Graves' disease, and follow-up for fine-needle aspiration results of thyroid nodules indicated as Bethesda 3-4 cytological results and papillary microcarcinoma. Conclusion This survey summarizes expert opinion for the management of endocrine surgical conditions during unprecedented times when access to surgical treatment is severely disrupted. The statements are not applicable in circumstances in which surgical treatment is possible.
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    Bahcesehir long-term population-based screening compared to National Breast Cancer Registry Data: effectiveness of screening in an emerging country
    (TURKISH SOC RADIOLOGY, 2021-01-01) Gurdal, Sibel Ozkan; Ozaydin, Ayse Nilufer; Aribal, Erkin; Ozcinar, Beyza; Cabioglu, Neslihan; Sahin, Cennet; Ozmen, Vahit
    PURPOSE We aimed to show the effects of long-term screening on clinical, pathologic, and survival outcomes in patients with screen-detected breast cancer and compare these findings with breast cancer patients registered in the National Breast Cancer Registry Data (NBCRD). METHODS Women aged 40-69 years, living in Bahcesehir county, Istanbul, Turkey, were screened every 2 years using bilateral mammography. The Bahcesehir National Breast Cancer Registry Data (BMSP) data were collected during a 10-year screening period (five rounds of screening). BMSP data were compared with the NBCRD regarding age, cancer stage, types of surgery, tumor size, lymph node status, molecular subtypes, and survival rates. RESULTS During the 10-year screening period, 8758 women were screened with 22621 mammograms. Breast cancer was detected in 130 patients
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    Turkish national consensus on breast cancer management during temporary state of emergency due to COVID-19 outbreak
    (TURKISH SURGICAL ASSOC, 2020-01-01) Sezer, Atakan; Cicin, Irfan; Cakmak, Guldeniz Karadeniz; Gurdal, Sibel Ozkan; Basaran, Gul; Oyan, Basak; Eralp, Yesim; Gulluoglu, Bahadir M.; Speci, Turkish Natl Breast Oncology
    Objective: Cancer care is excessively influenced by the COVID-19 outbreak for various reasons. One of the major concerns is the tendency for delayed surgical treatment of breast cancer patients. The outbreak has urged clinicians to find alternative treatments until surgery is deemed to be feasible and safe. Here in this paper, we report the results of a consensus procedure which aimed to provide an expert opinion-led guideline for breast cancer management during the COVID-19 outbreak in Turkey. Material and Methods: We used the Delphi method with a 9-scale Likert scale on two rounds of voting from 51 experienced surgeons and medical oncologists who had the necessary skills and experience in breast cancer management. Voting was done electronically in which a questionnaire-formatted form was used. Results: Overall, 46 statements on 28 different case scenarios were voted. In the first round, 37 statements reached a consensus as either endorsement or rejection, nine were put into voting in the second round since they did not reach the necessary decision threshold. At the end of two rounds, for 14 cases scenarios, a statement was endorsed as a recommendation for each.Thirty-two statements for the remaining 14 were rejected. Conclusion:There was a general consensus for administering neoadjuvant systemic therapy in patients with node-negative, small-size triple negative, HER2-positive and luminal A-like tumors until conditions are improved for due surgical treatment. Panelists also reached a consensus to extend the systemic treatment for patients with HER2-positive and luminal B-like tumors who had clinical complete response after neoadjuvant systemic therapy.
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    Comparison of Qualitative and Volumetric Assessments of Breast Density and Analyses of Breast Compression Parameters and Breast Volume of Women in Bahcesehir Mammography Screening Project
    (GALENOS YAYINCILIK, 2020-01-01) Gemici, Aysegul Akdogan; Aribal, Erkin; Ozaydin, Ayse Nilufer; Gurdal, Sibel Ozkan; Ozcinar, Beyza; Cabioglu, Neslihan; Ozmen, Vahit
    Objective: We aimed to compare visual and quantitative measurements of breast density and to reveal the density profile with compression characteristics. Materials and Methods: Screening mammograms of 1399 women between May 2014 and May 2015 were evaluated by using Volpara 4th and 5th version. First 379 mammograms were assessed according to ACR BI-RODS 4th- edition and compared to Volpara. We categorized the breast density in two subgroups as dens or non-dens. Two radiologists reviewed the images in consensus. Agreement level between visual and volumetric methods and volumetric methods between themselves assessed using weighted kappa statistics. Volpara data such as fibroglandular volume (FGV), breast volume (BV), compression thickness (CT), compression force (CF), compression pressure (CP) were also analyzed with relation to the age. Results: 1399 mammograms were distributed as follows: 12.7\% VDG1, 39.3\% VDG2, 34.1\% VDG3, 13.9\% VDG4 according to the 4th edition of Volpara