Kazibe Koyuncu
Ankara University
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Publication
Featured researches published by Kazibe Koyuncu.
Gynecologic and Obstetric Investigation | 2017
Bahar Konuralp Atakul; Salih Taşkın; Cigdem Soydal; Yavuz Emre Sukur; Alper Kahraman; Kazibe Koyuncu; Erkan Ibis; Fırat Ortaç
Introduction: This study evaluated the role of 18F-fluorodeoxyglucose (FDG) positron emission tomography/CT (PET/CT) in the detection of lymph node metastases and the association between uterine maximum standardized uptake values (SUVmax) and the histopathological features in endometrial cancer patients. Materials and Methods: Patients with endometrioid endometrial cancer underwent preoperative 18F-FDG PET/CT imaging and were staged surgically. 18F-FDG PET/CT findings were compared with final pathology reports. Grade 3 histology or grade 2 histology with myometrial invasion ≥50% was established as a high risk feature. Results: One hundred and eleven patients were analysed. Sensitivity, specificity, accuracy, positive predictive value (PPV) and negative predictive value (NPV) of 18F-FDG PET/CT in the detection of lymph node metastasis in all patients (n = 111) were 67, 96, 93, 60 and 97%, respectively. In the high-risk group, sensitivity, specificity, accuracy, PPV and NPV of 18F-FDG PET/CT were 75, 92, 91, 60 and 96%, respectively. Uterine SUVmax was found to be associated with myometrial invasion, grade and cervical stromal involvement. Conclusions:18F-FDG PET/CT has limited sensitivity and accuracy in detecting lymph node metastasis. Therefore, as of now, it is not accepted as a modality that can replace lymphadenectomy. SUVmax values can predict high-risk factors.
Obstetric Medicine | 2017
Kazibe Koyuncu; Batuhan Turgay; Rusen Aytac; Feride Söylemez
Pompe disease is an autosomal-recessive disorder caused by acid alpha-glucosidase deficiency due to mutations in the GAA gene. There are two forms of the disease: infantile-onset Pompe disease and late-onset Pompe disease. The worldwide incidence of both forms of the disease is commonly reported to be 1 in 40,000. Adult patients are affected by limb-girdle muscular weakness and respiratory insufficiency. Enzyme replacement therapy with alglucosidase-alpha is available since 2006. There is little knowledge about pregnant woman with Pompe disease. These women should be considered as high-risk pregnant women. Here, we aim to present Cesarean delivery and postpartum management of a case with an interrupted enzyme replacement therapy during pregnancy.
Journal of Turkish Society of Obstetric and Gynecology | 2017
Kazibe Koyuncu; Batuhan Turgay; Yavuz Emre Şükür; Bircan Yıldırım; Can Ateş; Feride Söylemez
Objective: To assess the relationship between maternal third trimester anemia and hospital stay after delivery. Materials and Methods: In this retrospective cross-sectional study, 695 women aged 18-42 years were included between January 2016 and June 2016. Obstetric outcomes and fetal outcomes were measured. Statistical analysis was performed using SPSS, version 19.0 (SPSS, Chicago, Illinois). Results: The prevalence of anemia in this study was 15.2%. The study population was divided into three groups according to hemoglobin (Hb) levels. Group 1 consisted of patients with Hb <8.5 g/dL, group 2 Hb 8.5-11 g/dL, and group 3 Hb >11 g/dL. Higher levels of Hb were associated with shorter stay in hospital (p=0.028). In binary comparison, no significant difference was observed between groups 2 and 3, whereas it was statistically different from group 1. Fetal weight (p=0.562), neonatal intensive care unit admission (p=0.596), APGAR score 1st (p=0.674) and 5th minute (p=0.876), type of delivery (p=0.831), and gestational age (p=0.798) were not statistically different between the groups; however, hospitalization time was significantly different (p=0.028). Conclusion: Maternal anemia in the third trimester prolongs hospitalization time after delivery. Anemia effects pregnancy and the fetus in the postpartum period in addition to the prenatal period.
Journal of Turkish Society of Obstetric and Gynecology | 2017
Batuhan Turgay; Kazibe Koyuncu; Salih Taşkın; Uğur Fırat Ortaç
Objective: Brenner tumors are rare neoplasms of the ovary. The aim of this study was to investigate the clinical features of Brenner tumors. Materials and Methods: The clinical features of 22 patients who were treated in Ankara University Faculty of Medicine Obstetrics and Gynecology Department between 2005 and 2015 were evaluated retrospectively from hospital medical records. Results: The patients were aged 34 to 79 years at the time of diagnosis and the mean age was 55.1 years. Two (9.1%) patients were pre-menopausal, five (22.7%) were peri-menopausal, and 25 (68.2%) patients were postmenopausal. One patient was pregnant. Twenty of the neoplasms were benign, one was malignant, and one was both malignant and benign. There was no recurrence in the malignant cases. Six (27.2%) patients had mixed tumors consisting of Brenner tumor and another ovarian pathology. Specifically, the other component of these tumors was mucinous cystadenoma in four patients, endometriosis externa in one patient, and high-grade serous papillary cyst adenocarcinoma in one patient. Conclusion: Brenner tumors are usually incidental benign pathologic findings of surgical procedures in postmenopausal women. They can be found with other ovarian pathologies such as mucinous ovarian tumors and can coexist with other female genital tumors. Further studies are needed to completely understand the clinical features of Brenner tumors.
Journal of The Turkish German Gynecological Association | 2017
Salih Taşkın; Özgür Kan; Ömer Dai; Elif Aylin Taşkın; Kazibe Koyuncu; Ayşegül Alkılıç; Mete Güngör; Fırat Ortaç
Objective: The rate of concomitant endometrial carcinoma in patients with atypical endometrial hyperplasia is high. We aimed to investigate the role of lymphadenectomy in deciding adjuvant treatment in patients with concomitant atypical endometrial hyperplasia and endometrial carcinoma. Material and Methods: Women with atypical endometrial hyperplasia were enrolled in this retrospective study. Lymph node dissection was performed in only some patients who gave informed consent if their surgeon elected to do so, or if the intraoperative findings necessitated. The final histopathologic evaluations of surgical specimens were compared with endometrial biopsy results. Results: Eighty eligible patients were evaluated. Seventy-two (90%) patients had complex hyperplasia with atypia, and 8 (10%) patients had simple hyperplasia with atypia. Hysterectomy and bilateral salpingo-oophorectomy were performed to all patients; 37 also underwent lymph node dissection. Lymph node dissection was extended to the paraaortic region in 9 of 37 patients. The concomitant endometrial carcinoma rate was 50%. Two patients had lymph node metastasis. Among 40 cases of carcinoma, 17 had deep myometrial invasion and/or cervical or ovarian involvement or grade 2 tumors with superficial myometrial invasion on hysterectomy specimens; 27.5% of all carcinomas were stage Ib or higher. Conclusion: The concomitant endometrial carcinoma rate was high in patients with atypical endometrial hyperplasia. Nearly half of these patients had risk factors for extrauterine spread. Lymph node dissection might be helpful to decide adjuvant treatment.
Journal of The Turkish German Gynecological Association | 2018
Kazibe Koyuncu; Batuhan Turgay; Feride Söylemez
Journal of Clinical Obstetrics & Gynecology | 2018
Kazibe Koyuncu; Özgür Kan; Tuncay Yüce; Salih Taşkin; Feride Söylemez
Turkiye Klinikleri Journal of Gynecology and Obstetrics | 2017
Kazibe Koyuncu; Özgür Kan; Tuncay Yüce; Salih Taşkin; Feride Söylemez
Archives of Gynecology and Obstetrics | 2017
Salih Taşkın; Yavuz Emre Şükür; Bulut Varlı; Kazibe Koyuncu; Mehmet Murat Seval; Can Ateş; Selcen Yüksel; Mete Güngör; Fırat Ortaç
Archives of Gynecology and Obstetrics | 2017
Yavuz Emre Şükür; Kazibe Koyuncu; Mehmet Murat Seval; Esra Çetinkaya; Fulya Dökmeci