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    The effect of increased number of cesarean on maternal and fetal outcomes
    (VIA MEDICA, 2017) Cintesun, Ersin; Atakan, Al Ragip
    Objectives:The aim of this study was to evaluate the effects of multiple cesarean deliveries (CDs) on maternal fetal morbidity and mortality rates. Material and methods: This retrospective study included a total of 1,506 patients who underwent multiple CDs between January 2006 and May 2014. The patients were divided into two groups. One group consisted of patients with four or more CDs In = 444) and a control group of patients with three CDs (n=1,062). Both groups were analyzed for demographics, complications from multiple cesarean deliveries and perinatal outcomes. Results: The mean age was higher in the study group (p < 0.001). Dense adhesion (p < 0.001), demand for tubal ligation (p < 0.001), the requirement of pelvic drainage (p < 0.001), duration of hospitalization (p < 0.001) and the requirement for blood transfusion (p=0.03) was also significantly higher in the study group. Hemoglobin levels (p = 0.002) were significantly higher in the control group on the second postoperative day. Regarding perinatal morbidity; umbilical artery pH results (p = 0.003) were significantly lower in the study group. There was no significant difference in the maternal and fetal mortality rates between both groups. Conclusions: According to our study results, an increase in the number of cesarean sections increases maternal and fetal morbidity rates significantly. Therefore, we recommend decreasing the rate of primary cesarean deliveries by encouraging vaginal birth after CD. We also advocate the use of permanent contraceptive methods in patients with a high number of CD's. Further large-scale prospective results are required to establish a definitive conclusion.
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    The relationship between KRAS LCS6 polymorphism and endometrium cancer
    (TAYLOR & FRANCIS INC, 2019) Cintesun, Feyza Nur Incesu; Secilmis Kerimoglu, Ozlem; Cintesun, Ersin; Nergiz, Suleyman; Acar, Hasan; Çelik, Çetin
    The aim of this study was to investigate the relationship between KRAS LCS6 mutation and endometrial cancer (EC). The study included 105 patients who had hysterectomy for benign reasons and 99 EC patients. The patients with Type 1 EC were classified according to histological properties, cancer stage, grade, tumour dimension, myometrial invasion (MMI), lymphovascular invasion (LVI), cytology, and number of positive lymph nodes. KRAS LCS6 mutation was examined in blood samples taken from all patients in both groups. No statistically significant difference was determined between the EC patients and the control group in demographic features. Weight and the Body Mass Index (BMI) values were higher in EC group (p < .001). While the incidence of this polymorphism is 5.8% throughout the world, the polymorphism rate was found to be 16.2% in the EC group and 12.4% in the control group, with no statistically significant difference determined (p > .05). Despite the higher rate of LCS6 polymorphism incidence in EC patients in this study conducted on a relatively large sample, there was not found to be a statistically significant difference in comparison with the control group. In addition, the presence of LCS6 polymorphism was not determined to have an effect on EC histopathological characteristics.Impact statement What is already known on this subject? Endometrial cancer (EC) is a genital system cancer which is one of the most widespread gynecological cancers seen in the USA and other developed countries, In EC, the most frequently seen gene mutations are PTEN tumour suppressor gene, KRAS, beta 1 catenin, BCL-2, CTNNB and P53 mutations. KRAS LCS6(let-7 miRNA binding region polymorphism) polymorphism has a worldwide incidence of 5.8% (Chin et al. 2008).There are studies shown that KRAS LCS6 polymorphism has an effect on developing EC (Lee et al. 2014), ovarian cancer(Ratner et al. 2010)and endometriosis in women (Grechukhina et al. 2012). What do the results of this study add? In our study, LCS6 located on KRAS 3'-UTR was found at the rate of 16.2% in Type 1 EC patients. This increase is noticeable when it is considered that the incidence of this polymorphism is 5.8% in the general population. The results of the current study supports the preliminary findings of Lee et al.