Wos Kapalı Erişimli Yayınlar

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search.filters.applied.f.language: search.filters.language.engSubject: search.filters.subject.CANCER

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    In reply to Shih YJ et.al. (doi: 10.1111/odi.14349)
    (2022) Topkan, Erkan; Somay, Efsun; Yilmaz, Busra; 0000-0001-8120-7123; 0000-0003-0633-5648; 36114821; AAG-2213-2021
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    Comparison of Involved Field Radiotherapy versus Elective Nodal Irradiation in Stage IIIB/C Non-Small-Cell Lung Carcinoma Patients Treated with Concurrent Chemoradiotherapy: A Propensity Score Matching Study
    (2020) Topkan, Erkan; Ozdemir, Yurday; Guler, Ozan Cem; Kucuk, Ahmet; Besen, Ali Ayberk; Mertsoylu, Huseyin; Sezen, Duygu; Akdemir, Eyub Yasar; Sezer, Ahmet; Bolukbasi, Yasemin; Pehlivan, Berrin; Selek, Ugur; 0000-0002-1932-9784; 0000-0001-6908-3412; 0000-0002-2218-2074; 0000-0002-6445-1439; 0000-0001-8120-7123; 0000-0002-7862-0192; 32952557; M-9530-2014; AAC-5654-2020; AAG-5629-2021; AAD-2667-2020; AAG-2213-2021; AAD-6910-2021
    Background. We retrospectively compared the incidence of isolated elective nodal failure (IENF) and toxicity rates and survival outcomes after elective nodal irradiation (ENI) versus involved-field RT (IFRT) by employing the propensity score matching (PSM) methodology in stage IIIB/C inoperable non-small-cell lung cancer (NSCLC) patients treated with definitive concurrent chemoradiotherapy (C-CRT).Methods. Our PSM examination included 1048 stage IIIB/C NSCLC patients treated with C-CRT from January 2007 to December 2016: a total dose of 66 Gy (2 Gy/fraction) radiotherapy and 1-3 cycles of platinum-based doublet chemotherapy concurrently. The primary and secondary endpoints were the IENF and toxicity rates and survival outcomes after ENI versus IFRT, respectively. Propensity scores were calculated for each group to adjust for confounding variables and facilitate well-balanced comparability by creating 1 : 1 matched study groups.Results. The median follow-up was 26.4 months for the whole study accomplice. The PSM analysis unveiled 1 : 1 matched 646 patients for the ENI (N = 323) and IFRT (N = 323) cohorts. Intergroup comparisons discovered that the 5-year isolated ENF incidence rates (3.4% versus 4.3%;P=0.52) and median overall survival (25.2 versus 24.6 months;P=0.69), locoregional progression-free survival (15.3 versus 15.1 months;P=0.52), and progression-free survival (11.7 versus 11.2 months;P=0.57) durations were similar between the ENI and IFRT cohorts, separately. However, acute grade 3-4 leukopenia (P=0.0012), grade 3 nausea-vomiting (P=0.006), esophagitis (P=0.003), pneumonitis (P=0.002), late grade 3-4 esophageal toxicity (P=0.038), and the need for hospitalization (P<0.001) were all significantly higher in the ENI than in the IFRT group, respectively.Conclusion. Results of the present large-scale PSM cohort established the absence of meaningful IENF or survival differences between the IFRT and ENI cohorts and, consequently, counseled the IFRT as the elected RT technique for such patients since ENI increased the toxicity rates.
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    The effect of helicobacter pylori eradication on atrophic gastritis and intestinal metaplasia : a retrospective single center research
    (2020) Suna, N.; Etik, D.; Ocal, S.; Gunduz, C.; Acikgoz, A.; Bildik, I; Gursoy, A.; Kasgoz, I; Tuleylioglu, H.; Boyacioglu, A.; 0000-0003-3719-9482; 0000-0002-4724-0728; 0000-0001-6234-7788; 33094583; ABH-4817-2020; AAJ-4707-2021; AAI-8822-2021
    Background and study aims : Gastric cancer (GC) is one of the major causes of cancer-related deaths worldwide. Helicobacter pylori (Hp) plays an important role in gastric carcinogenesis by inducing precancerous changes such as atrophic gastritis (AG) and intestinal metaplasia (IM). In our study, we aim to compare the grade of AG and IM before and after Hp eradication in patients who underwent esophagogastroduodenoscopy (EGD) in our center. Patients and methods : The data of 40.060 patients who underwent EGD for various reasons in our Endoscopy Unit between June 2011 and November 2017 were retrospectively evaluated. The grade of AG and IM before and after Hp eradication of patients meeting the study criteria were compared with each other. In addition, these findings were compared using OLGA and OLGIM staging systems. Results : A total of 175 patients, 89 (50.9%) women and 86 (49.1%) men, were included in the study. The mean age was 55 +/- 12 years. The mean time between two EGD examinations was 38 +/- 14 months. Significant improvement was observed in the grade of AG on corpus and antrum after Hp eradication (P=0.000, P=0.008). In the corpus and antrum, the grade of IM was regressed but this was not significant (P=0.80 and P=0.370 respectively). There was a decrease in OLGA stages after Hp eradication (P=0.000). There was also a reduction in the OLGIM stages, but this was not significant(P=0.341). Conclusion: Our study demonstrates that Hp eradication may reduce the risk of developing GC by providing an improvement in AG and IM which are precancerous changes in GC.