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Dive into the research topics where Eray Caliskan is active.

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Featured researches published by Eray Caliskan.


Fertility and Sterility | 2002

Metformin therapy improves ovulatory rates, cervical scores, and pregnancy rates in clomiphene citrate-resistant women with polycystic ovary syndrome.

Müberra Koçak; Eray Caliskan; Coskun Simsir; Ali Haberal

OBJECTIVE To evaluate the effect of metformin therapy on hyperandrogenism, insulin resistance, cervical scores, ovulation, and pregnancy rates in clomiphene citrate-resistant women with polycystic ovary syndrome (PCOS). DESIGN Prospective, randomized, double-blind, placebo-controlled study. SETTING Infertility clinic of a tertiary referral center. PATIENT(S) Fifty-six women with clomiphene citrate-resistant PCOS. INTERVENTION(S) Two cycles of oral metformin therapy (850 mg, twice daily) in group I and placebo therapy (twice daily) in group II. Clomiphene citrate (100 mg/day) on cycle days 3-7 of the second cycle in both groups. MAIN OUTCOME MEASURE(S) Insulin, T, DHEAS, FSH, LH, body mass index (BMI), waist-to-hip ratio, endometrial thickness, cervical score, ovulation, and pregnancy rates in clomiphene-induced cycles after metformin therapy. RESULT(S) Metformin therapy resulted in a significant decrease in total T, LH level, LH/FSH ratio, insulin resistance, and mean BMI. No difference in waist-to-hip ratio, DHEAS level, and fasting insulin level was observed. Clomiphene citrate induction resulted in higher ovulation rates and thicker endometrium in the metformin group than in the placebo group. There was higher cumulative pregnancy rate in the metformin group; however, there was no significant difference in the pregnancy rate between the two groups. CONCLUSION(S) Metformin therapy not only decreases hyperandrogenism and insulin resistance but also improves ovulation rates, cervical scores, and pregnancy rates in clomiphene citrate-resistant women with PCOS.


The European Journal of Contraception & Reproductive Health Care | 2003

Analysis of risk factors associated with uterine perforation by intrauterine devices.

Eray Caliskan; N. Öztürk; Berna Dilbaz; Serdar Dilbaz

Objective: To determine the risk factors for intrauterine devices (IUDs) being displaced into the abdominal cavity. Methods: This prospective follow-up study was conducted between 1996 and 2002, at the family planning clinic of a referral hospital. All 8343 women who had a copper T-380A IUD inserted underwent ultrasound examination after 1 year. Relative risk estimates and logistic regression analyses were performed to determine the risk factors associated with uterine perforation by intrauterine devices. Results: Eighteen uterine perforations occurred during the study, giving an incidence of 2.2 per 1000 insertions. When the time elapsed after the last delivery until IUD insertion is considered, postplacental insertion and insertion after 6 months postpartum were found not to increase the risk of uterine perforation. However, IUD insertion 0-3 months postpartum increased the risk of uterine perforation (odds ratio (OR) 11.7, 95% confidence interval (CI) 2.8-49.2) as did insertions at 3-6 months postpartum (OR 13.2, CI 2.8-62). Increasing parity decreased the risk (OR 0.04, CI 0.01-0.1) and increasing number of abortions increased the risk (OR 2.1, CI 1.2-3.6). Conclusion: It is safer to postpone IUD insertion until 6 months after delivery.


European Journal of Obstetrics & Gynecology and Reproductive Biology | 2003

Endometrial stromal sarcoma of the uterus: analysis of 25 patients

Ali Haberal; Fulya Kayikcioglu; Nurettin Boran; Eray Caliskan; Nejat Ozgul; M. Faruk Köse

OBJECTIVE To analyze the prognostic factors in endometrial stromal sarcoma (ESS). METHODS Prognostic factors and adjuvant treatment of endometrial stromal sarcoma in 25 patients were evaluated retrospectively. RESULTS The mean age of the group was 43. In 58% of the patients, the presenting sign was vaginal bleeding. The median total survival was 55 months while the disease free survival (DFS) was 49 months. Disease recurred in eight patients, in three of whom tumors were confined to the pelvis. Seventeen patients were alive without disease. Four patients died because of the disease. The 5-year survival rate for patients with low-grade (LGESS) disease was 92%, and 85% in high-grade (HGESS) disease. CONCLUSION In multivariate analyzes, tumor grading was the only prognostic factor in endometrial stromal sarcoma (P=0.0026).


Acta Obstetricia et Gynecologica Scandinavica | 2004

A population-based risk factor scoring will decrease unnecessary testing for the diagnosis of gestational diabetes mellitus

Eray Caliskan; Fulya Kayikcioglu; Nilgün Öztürk; Sevgi Koç; Ali Haberal

Background.  To determine the effectiveness of a population‐based risk factor scoring to decrease unnecessary testing for the diagnosis of gestational diabetes mellitus (GDM).


Journal of Clinical Ultrasound | 2010

Diagnostic accuracy of real‐time 3D sonography in the diagnosis of congenital Mullerian anomalies in high‐risk patients with respect to the phase of the menstrual cycle

Eray Caliskan; Sabiha Ozkan; Yigit Cakiroglu; Hasan Tahsin Sarisoy; Aydın Çorakçi; Semih Özeren

To compare the diagnostic accuracy of 2‐dimensional sonography (2DUS) and real‐time 3‐dimensional sonography (3DUS) in the diagnosis of congenital mullerian defects (CMD) with respect to the phase of the menstrual endometrium.


Gynecologic and Obstetric Investigation | 2005

Misoprostol 50 μg Sublingually versus Vaginally for Labor Induction at Term: A Randomized Study

Eray Caliskan; Harika Bodur; Semih Özeren; Aydın Çorakçi; Sabiha Ozkan; İzzet Yücesoy

Objective: To compare the efficacy of misoprostol 50 µg vaginally and 50 µg sublingually for labor induction at term. Materials and Methods: One hundred and sixty women were randomized to receive misoprostol 50 µg vaginally (n = 80) or 50 µg sublingually misoprostol (n = 80). The doses were given every 4 h (maximum 6 doses). Primary outcome measure was number of cesarean deliveries. Induction to delivery time, delivery within 24 h, the number of misoprostol doses given; the need for oxytocin augmentation, tachysystole and uterine hyperstimulation rates and neonatal outcomes were secondary outcome measures. Results: The mean induction to delivery time was 748 ± 379 min in the vaginal group and 711 ± 425 in the sublingual group (p = 0.56). The number of women delivering within 24 h was 73 (91.3%) in the vaginal group and 74 (92.5%) in the sublingual group (p = 0.78). The mean number of misoprostol doses required was significantly higher in the sublingual group (1.9 ± 1.2) compared with the vaginal group (1.1 ± 0.4; p < 0.001). More women in the sublingual group experienced tachysystole (n = 14, 17.5%) compared with the vaginal group (n = 3, 3.8%; p = 0.005). Seven cases (8.8%) in the vaginal group and 12 cases in the sublingual group (15%) required emergent cesarean delivery for fetal heart rate abnormalities (p = 0.22). Other neonatal outcomes including umbilical artery pH, Apgar scores and intensive care unit admission were similar in the two groups. Conclusion: Sublingual misoprostol is as efficacious as vaginal misoprostol for induction of labor. More frequent tachysystole is observed with misoprostol 50 µg sublingually, but neonatal outcomes are similar.


Contraception | 2010

Effect of etonogestrel implant on serum lipids, liver function tests and hemoglobin levels

Berna Dilbaz; Ozlem Ozdegirmenci; Eray Caliskan; Serdar Dilbaz; Ali Haberal

BACKGROUND This study aimed to assess the possible effects of etonogestrel implant (Implanon, Organon, Oss, The Netherlands) on total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), aspartate aminotransferase (AST), alanine aminotransferase (ALT) and Hb levels in a sample of Turkish population. STUDY DESIGN Healthy women of childbearing potential who had applied to our Family Planning Clinic for a contraceptive method and had chosen to have an Implanon insertion after thorough counseling about all family planning methods and screening for eligibility for Implanon use were enrolled in the study. Serum concentrations of TC, TG, HDL-C, LDL-C, AST, ALT and Hb levels were tested before and at 3 and 6 months after insertion. Baseline mean parameters were compared with mean parameters at 3 and 6 months for statistical significance using paired-samples t test. RESULTS Eighty-two women eligible for the study were included. Mean age of the patients was 27.5+/-4.8 years. When compared to the baseline values, there was a statistically significant decrease in the TC (p<.001), HDL-C (p<.001) and TG (p=.006) at the end of the third month, while there was a significant increase in Hb values (p=.01). The decrease in TC (p=.001) and HDL-C (p<.001) and increase in Hb value (p=.03) persisted by the end of sixth month while the decrease in TG was transient. A statistically significant increase in mean ALT level was observed at 6 months (p=.03). CONCLUSION The effect of Implanon on liver functions and lipid metabolism does not lead to unhealthy alterations. Increase in Hb can be attributed to the high frequency of amenorrhea in patients.


Australian & New Zealand Journal of Obstetrics & Gynaecology | 2004

Unsucessful labour induction in women with unfavourable cervical scores : Predictors and management

Eray Caliskan; Serdar Dilbaz; Orhan Gelisen; Berna Dilbaz; Nilgün Öztürk; Ali Haberal

Background: Misoprostol fails to induce labour in 5–20% of women at term.


Archives of Gynecology and Obstetrics | 2003

Placenta previa percreta with urinary bladder and ureter invasion

Eray Caliskan; O. Tan; V. Kurtaran; Berna Dilbaz; Ali Haberal

Abstract. A 26-year-old woman, with one previous cesarean delivery and two uterine curettage due to incomplete abortion, was admitted to the labor ward with the diagnosis of partial placenta previa at 35 weeks of gestation. Repeat cesarean section was performed due to profuse vaginal bleeding. Placenta previa percreta invading the bladder trigone was confirmed with cystotomy. As bilateral hypogastric artery ligation and supracervical hysterectomy performed were not successful in stopping the profuse bleeding, the abdomen was packed with laparotomy pads. Dilatation of the left ureter was noticed on the second postoperative day. Relaparotomy was performed to remove the pads, and placental invasion of the distal left ureter was noticed. Ureteroneocystostomy was performed. The postoperative course was uneventful, and the double-J-catheter was removed two months later.


Acta Radiologica | 2004

Magnetic resonance imaging and angiography for the prerupture diagnosis of rudimentary uterine horn pregnancy.

Semih Özeren; Eray Caliskan; Aydın Çorakçi; Sebiha Özkan; Ali Demirci

Magnetic resonance (MR) imaging and MR angiography were used for the differential diagnosis and preoperative planning of a 17 weeks of age rudimentary horn pregnancy. A 26-year-old primigravida was referred to our hospital with a preliminary diagnosis of abdominal pregnancy. After an inconclusive ultrasound evaluation we were able to identify a rudimentary horn pregnancy, extent of the placental invasion, and the vascular supply via MR imaging and time of flight sequence MR angiography. The obtained data were also used for preoperative planning, which resulted in an uncomplicated, prerupture laparotomy for pregnancy termination and a healthy female.

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