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Featured researches published by Yakup Yalçın.


International Journal of Surgery Case Reports | 2013

A giant cystic leiomyoma mimicking an ovarian malignancy.

Çetin Aydin; Serenat Eris; Yakup Yalçın; Halime Şen Selim

INTRODUCTION Leiomyoma of the uterus is the most common type of tumor affecting the female pelvis and arises from uterine smooth muscle. The size of leiomyomas varies from microscopic to giant; giant myomas are exceedingly rare. We report an unusual case of a large, cystic, pedunculated uterine leiomyoma mimicking a primary malignant ovarian tumor on sonography and CT. PRESENTATION OF CASE A 58-year-old postmenopausal nulliparous woman presented with a history of lower abdominal pain and distension for a period of approximately 12 months. The patients personal history revealed difficulty in walking, tiredness and recent weight gain of approximately 25 kg. Sonography and CT examination showed a large mass that filled the abdomen. A preoperative diagnosis of a primary malignant ovarian tumor was made. The patient underwent laparotomy, total hysterectomy and bilateral salpingo-ooferectomy. The histology revealed a leiomyoma with extensive cystic degeneration. DISCUSSION The current established management of uterine fibroids may involve expectant, surgical, or medical management or uterine artery embolization or a combination of these treatments. A surgical approach is preferred for management of giant leiomyomas. CONCLUSION Pedunculated leiomyomas should be considered in the differential diagnosis of a multilocular and predominantly cystic adnexal mass.


Journal of Maternal-fetal & Neonatal Medicine | 2017

Can we consider cesarean myomectomy as a safe procedure without long-term outcome?

Mehmet Özgür Akkurt; And Yavuz; Serenat Eris Yalcin; Iltac Akkurt; Ozerk T. Turan; Yakup Yalçın; Mekin Sezik

Abstract Aim: To investigate short- and long-term outcomes in women undergoing cesarean myomectomy (CM). Methods: This was a retrospective study that explored short-term outcomes of women, who underwent cesarean operations with or without myomectomies (CM controls) in a single tertiary center throughout a 6-year-period. For long-term outcomes, the mean duration of follow-up was 6.3 ± 1.0 years. Results: There were no differences among the CM (n= 91) and control groups (n = 60) considering mean change in hemoglobin and hematocrit levels, hemorrhage, as well as requirement for blood transfusions with a slightly increased operative time. Multiple myomas, and cervical and cornual localization were associated with an increased drop of hemoglobin and hematocrit (p < 0.05). Subsequent pregnancy and recurrence rates were 35% (32/91) and 5.5% (5/91), respectively. Preterm delivery (n = 1, 3.1%), uterine dehiscence (n = 1, 3.1%), placenta previa (n = 1, 3.1%) and mild-to-severe post-CM adhesions (n = 8, 25%) were observed in subsequent pregnancies. Recurrence was identified in five of the nonpregnant (5.5%) women, and three of these (4.1%) underwent an additional major surgery. There was no recurrence in subsequent pregnancies. Conclusion: The recurrence of myoma was relatively low following CM. Subsequent pregnancy is protective for recurrence of myoma without increased adhesion formation and obstetric complications.


Journal of The Turkish German Gynecological Association | 2015

The evaluation of risk factors for failed response to conservative treatment in tubo-ovarian abscesses.

Mehmet Özgür Akkurt; Serenat Eris Yalcin; Iltac Akkurt; Burak Tatar; And Yavuz; Yakup Yalçın; Mehmet Akif Akgül; Fulya Kayikcioglu

OBJECTIVE The aim of our study is to assess the risk factors for medical treatment failure and to predict the patients who will require the surgical therapy as well as to predict the factors affecting treatment success. MATERIAL AND METHODS This was a cross-sectional study including 76 women with tubo-ovarian abscesses (TOA) who were either conservatively or surgically treated and were admitted to two gynecology units over a 4-year period. The demographic characteristics of the patients, gynecologic and obstetric histories, size and localization of abscesses were recorded. Gentamicin plus clindamycin treatment protocol was implemented for all patients. Ampicillin treatment was added in three patients with the positive culture of Actinomyces. Response to treatment was evaluated after 48-72 h. Patients who fail to respond to medical treatment required surgery or percutaneous drainage. We compared clinical and laboratory factors between the groups. RESULTS In surgery group, patients were significantly older than the others (44.9±5.4 versus 39.1±7.6 years). Fifty-six patients (74%) responded to antibiotics and 20 of the patients required surgical intervention. Patients treated with antibiotics were hospitalized for an average of 6.32±2.8 days versus 12.75±5.6 days for those who required surgery (p=0.021). Patients who were surgically treated had a mean size of TOA of 67.9±11.2 mm versus 53.6±9.4 mm for those treated with antibiotics alone (p=0.036). There were no significant differences between groups in laboratory parameters, except for initial white blood cell (WBC) counts. The complications of surgery included in descending order of frequency blood transfusions, surgical wound infections, bowel injury, and bladder injury. CONCLUSION An increased size of pelvic mass, higher initial WBC counts, advanced age, and smoking were all associated with failed response to conservative treatment. It is important to identify the risk factors to distinguish patients who will respond to antibiotic therapy and those who will need a surgical treatment. Thus, the required early intervention can result in a reduction in the morbidity associated with TOA.


Pathology Research and Practice | 2016

The role of immunohistochemical adrenomedullin and Bcl-2 expression in development of type-1 endometrial adenocarcinoma: Adrenomedullin expression in endometrium.

Kemal Kürşat Bozkurt; Yakup Yalçın; Ebru Erdemoğlu; Burak Tatar; Evrim Erdemoglu; Sevim Süreyya Çerçi; İbrahim Metin Çiriş; Şirin Başpınar; Afife Uğuz; Nilgun Kapucuoglu

BACKGROUND Adrenomedullin (AM) is a pluripotent peptide first discovered from human pheochromocytoma. AM expression has been shown in various cancer types including endometrium cancer. Bcl-2 is an antiapoptotic protein which might be regulated by AM in hypoxic conditions. The aim of the present study was to investigate the role of AM and Bcl-2 expressions in carcinogenesis of type-1 endometrium cancer. MATERIALS AND METHOD Study group consisted of 10 proliferative endometrium, 22 simple endometrial hyperplasia, 23 endometrial intraepithelial neoplasia (EIN) and 30 Grade 1 endometrioid adenocarcinoma patients. AM and Bcl-2 expressions were investigated by immunohistochemistry. RESULTS Mean AM Allred score was 3±2.6, 5.6±1.6 and 5.7±2.5 in benign, EIN and adenocarcinoma groups, respectively. AM expression was significantly higher in EIN and adenocarcinoma groups than in benign endometrium group (p<0.05). Mean Bcl-2 Allred score was 6.4±2.1, 5.2±2.6, 2.3±2 in benign endometrium, EIN and adenocarcinoma groups, respectively. Mean Bcl-2 Allred score was similar between benign endometrium and EIN groups (p>0.05). However, it was significantly lower in adenocarcinoma group (p<0.05). An inverse correlation between AM and Bcl-2 expressions was found (r: -0.4, p<0.001). CONCLUSIONS Our findings showed that AM expression increased in progression from benign endometrium to EIN and type-1 adenocarcinoma while expression of Bcl-2 decreased in transition from EIN to carcinoma.


The Eurasian Journal of Medicine | 2017

Evaluation of the Ki-67 Proliferation Index and Urocortin Expression in Women with Ovarian Endometriomas

Serenat Eris Yalcin; Irfan Ocal; Yakup Yalçın; Halime Sen Selim; Melike Demir Caltekin; Hüseyin Aydoğmuş; Sefa Kelekci

OBJECTIVE The reasons why endometriosis is more aggressive and invasive in some patients are unknown. Despite the importance of population-based clinically defined risk factors in the prediction of recurrence, biochemical markers obtained from the patient are more valuable for prediction on an individual basis. Therefore, the discovery of significant potential biomarkers could be useful to clinicians for shedding light on the pathogenesis of endometriosis and in the monitoring recurrence. MATERIALS AND METHODS This study included 50 patients who underwent surgery for ovarian cysts that were diagnosed as endometrioma. The age of the patients, stage of the endometriosis, diameter and localization of endometriomas, type of surgery, and pre- and postoperative cancer antigen 125 (CA125) levels were compared between patients with and without recurrence. The archived pathology slides were stained with Ki-67 and anti-urocortin antibodies for reevaluation. By comparing the pathology parameters of the patients with and without recurrence, the association between these parameters and recurrence was investigated. RESULTS The median Ki-67 proliferation index of the patients with recurrence (7.5±6.5) was statistically significant compared with that of the patients without recurrence (1±4) (p=0.003). The urocortin epithelial staining intensity and percentage were not found to be statistically significant in comparison. A statistically significant difference was determined between postoperative CA125 median levels of patients without recurrence (10±17.6) and those of patients with recurrence (29.9±18.1) (p=0.003). CONCLUSION The Ki-67 proliferation index may be useful for predicting prognosis and recurrence risk.


Journal of Perinatal Medicine | 2017

Maternal and perinatal outcomes in pregnancies with multiple sclerosis: a case-control study.

Serenat Eris Yalcin; Yakup Yalçın; And Yavuz; Mehmet Özgür Akkurt; Mekin Sezik

Abstract Objective: To assess whether maternal multiple sclerosis (MS) is associated with adverse pregnancy outcomes by determining the clinical course of disease during pregnancy and postpartum throughout a 10-year-period in a single tertiary center. Methods: We conducted a case-control study that included pregnancies with a definitive diagnosis of MS (n=43), matched with 100 healthy pregnant women with similar characteristics. Maternal and perinatal data were retrieved from hospital files. Groups were compared with the Mann-Whitney and χ2 tests. Logistic regression models were constructed to determine independent effects. Results: Maternal demographic and baseline laboratory data were similar across the groups. Rates of preterm delivery, fetal growth restriction, preeclampsia, gestational diabetes, stillbirth, cesarean delivery, congenital malformation, and 5-min Apgar score were comparable (P>0.05 for all). General anesthesia during cesarean delivery (96% vs. 39%, P=0.002), urinary tract infection (UTI) (12% vs. 3%, P=0.04), low 1-min Apgar score (21% vs. 9%, P=0.04), and nonbreastfeeding (33% vs. 2%, P=0.001) were more frequent in women with MS. The low 1-min Apgar score and breastfeeding rates were independent of general anesthesia and UTI in regression models. Conclusion: MS during pregnancy was not associated with adverse maternal and perinatal outcomes except UTI, low 1-min Apgar scores, and decreased breastfeeding rates.


Journal of Turkish Society of Obstetric and Gynecology | 2016

Vesicocutaneus fistula after cesarean section-a curious complication: Case report and review

Burak Tatar; Ebru Erdemoğlu; Sedat Soyupek; Yakup Yalçın; Evrim Erdemoglu

Vesicocutaneous fistulas are very rare pathologies in the urinary tract. We present the second case of a vesicocutaneus fistula after cesarean section, and discuss strategies for prevention, diagnosis, and treatment of this exceptional complication. A woman with a vesicocutaneous fistula after cesarean delivery was admitted and diagnostic tests including fluoroscopy, magnetic resonance imaging (MRI), and reconstructed MRI revealed the fistula tract and an urachal anomaly. The patient was treated through excision of the fistula tract. Laparotomy should be performed carefully, and the surgeon should be aware of the urachus. Inadvertent trauma to the urachus during laparotomy might cause serious unexpected complications. Possible etiologic factors for vesicocutaneous fistulae, prevention, and treatment methods are discussed.


Asian Pacific Journal of Cancer Prevention | 2016

The Value of Preoperative CA 125 Levels in Prediction of Myometrial Invasion in Patients with Early-stage Endometrioid- type Endometrial Cancer.

Zeynep Atguden; Askin Yildiz; Hayri Aksüt; Serenat Eris Yalcin; Yakup Yalçın; Dilek Uysal; Hakan Yetimalar

AIM To evaluate the relationship between pre-operative CA-125 levels and myometrial invasion in patients with early-stage endometrioid-type endometrial cancer. MATERIALS AND METHODS Two-hundred and sixty patients were diagnosed with endometrial cancer between January 2007 and December 2012. Of these, 136 patients with stage 1 endometrioid histologic-type and documented pre-operative serum CA-125 levels were included in the study. Age, preoperative CA-125 level, histologic grade, surgical grade, and presence of deep myometrial invasion were recorded. Additionally, 16, 20, and 35 IU/ml cutoff values were used and compared to evaluate the relationship between pre-operative CA-125 levels and myometrial invasion. RESULTS The average serum CA-125 level was 35.4±36.7 in patients with deep myometrial invasion, and 21.5±35.8 in cases without deep myometrial invasion. The relationship between the presence of deep myometrial invasion and CA-125 cut-off values (16, 20, 35 IU/ml) was statistically significant, although the correlation was weak (p<0.05). When the relationship between 16, 20 and 35 IU/ml CA-125 cut-off values and the presence of deep myometrial invasion was studied, specifity and sensitivity values were identified as: 0.60-0.68 for 16 IU/ml; 0.73-0.48 for 20 IU/ml; and 0.89-0.33 for 35 IU/ml. The sensitivity of 16 IU/ml cut-off value was higher when compared to other values. CONCLUSIONS This study demonstrates that preoperative serum CA-125 values maybe used as a predictive test in patients with early stage endometrioid-type endometrium cancer, and as a prognostic factor alone. Further studies should be conducted to identify different CA-125 cut-off values in patients with low risk endometrial cancer.


Journal of Clinical Ultrasound | 2018

Prenatal sonographic diagnosis of cephalopagus conjoined twins at 14 weeks of pregnancy

Serenat Eris Yalcin; Mehmet Özgür Akkurt; And Yavuz; Yakup Yalçın; Mekin Sezik

Conjoined twins are extremely rare and are a type of monozygotic twins that occur due to an incomplete embryonic division on postconception day 13 to 15. Eight different types of conjoined twins have been described in the literature. Management of the condition depends on the site and extent of the union. We present a case of cephalopagus twins diagnosed at 14 weeks of gestation.


Journal of Turkish Society of Obstetric and Gynecology | 2017

Role of positron emission tomography-computed tomography in endometrial cancer

Evrim Erdemoglu; Sevim Süreyya Çerçi; Ebru Erdemoğlu; Yakup Yalçın; Burak Tatar

Objective: The efficacy of preoperative 18F-fluoro-D-glucose (18F-FDG) positron emission tomography-computed tomography (PET-CT) in endometrium cancer is controversial. We examined the efficacy of PET-CT and the association between maximum standardized uptake value (SUVmax) and prognostic factors in endometrial cancer. Materials and Methods: Thirty patients with endometrial cancer underwent preoperative 18F-FDG/PET-CT. The patients were treated with abdominal hysterectomy with bilateral salpingo-oophorectomy, and bilateral systemic pelvic lymphadenectomy was planned for all patients; paraaortic lymphadenectomy was performed in patients with intermediate and high risk. Tumor histology, grade, depth of myometrial invasion, maximum tumor diameter, lymphovascular invasion, nodal status, and ovarian/adnexal metastases were recorded. Results: The mean primary tumor diameter was reported smaller in PET-CT and the effect size of PET-CT was -0.60. The kappa value was 0.06 for myometrial invasion. Pelvic lymph node metastasis was reported in 22.2% of patients in PET-CT. However, 3.7% of patients had pelvic lymph node metastasis. The kappa value for pelvic lymph node metastasis was 0.23, and sensitivity, specificity, and positive and negative predictive values were 100%, 80.7%, 16.6%, and 100%, respectively. Paraaortic lymph node metastasis in PET-CT was suspected in 10%. However, paraaortic lymph node metastasis was found in 6.7% in histopathologic analyses. The kappa value was 0.15. The sensitivity, specificity, and positive and negative predictive values of PET-CT for detecting paraaortic lymph node metastases were 100%, 93.7%, 66.6%, and 100%, respectively. Myometrial invasion and tumor diameter were the only important prognostic factors affecting SUVmax. Conclusion: According to our results, PET-CT has a limited role and diagnostic efficacy in endometrial cancer. The indications of FDG/PET-CT in endometrium cancer should be studied further and revised.

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And Yavuz

Süleyman Demirel University

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Burak Tatar

Süleyman Demirel University

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Evrim Erdemoglu

Süleyman Demirel University

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Serenat Eris Yalcin

Süleyman Demirel University

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Mekin Sezik

Süleyman Demirel University

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Esra Nur Tola

Süleyman Demirel University

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