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Featured researches published by Ibrahim Esinler.


Human Reproduction | 2012

Prevalence, phenotype and cardiometabolic risk of polycystic ovary syndrome under different diagnostic criteria

Bulent O. Yildiz; Gurkan Bozdag; Zuhal Yapıcı; Ibrahim Esinler; Hakan Yarali

STUDY QUESTION What is the prevalence, phenotype and metabolic features of polycystic ovary syndrome (PCOS) in the same population according to three different diagnostic criteria? SUMMARY ANSWER The prevalence of PCOS under National Institutes of Health (NIH), Rotterdam and Androgen Excess and PCOS (AE-PCOS) Society criteria was 6.1, 19.9 and 15.3%, respectively. PCOS carried a 2-fold increased risk of metabolic syndrome regardless of the diagnostic criteria used. WHAT IS KNOWN AND WHAT THIS PAPER ADDS The prevalence rates of PCOS differ depending on the diagnostic criteria used to define the syndrome. The current paper gives the prevalence rates of the component and composite phenotypes of PCOS in the same population and reports similar rates of metabolic syndrome in women with PCOS under contrasting diagnostic criteria. DESIGN In this cross-sectional study, 392 women between the ages of 18 and 45 years were analyzed. PARTICIPANTS AND SETTING When the prevalence of PCOS according to NIH was set to 8% with a precision of 2.2% and confidence interval of 95%, the sample size required for a prevalence survey was found to be 400 subjects. The study was carried out in the General Directorate of Mineral Research and Exploration, a government-based institute, in which the largest number of female staff (n = 527) are employed within a single institute in Ankara, Turkey. The study was performed between 7 December 2009 and 30 April 2010. All female subjects between the ages of 18 and 45 years were invited to participate. Women older than 45 or younger than 18 years, post-menopausal women, women with a history of hysterectomy or bilateral oopherectomy and pregnant women were excluded. Totally, 392 of the employees were recruited for the final analyses. MAIN RESULTS AND THE ROLE OF CHANCE The prevalence of PCOS under NIH, Rotterdam and AE-PCOS Society criteria were 6.1, 19.9 and 15.3%, respectively. While the prevalence of metabolic syndrome was 6.1% in the whole study group, within the patients diagnosed as PCOS according to NIH, Rotterdam and AE-PCOS Society criteria, it was 12.5, 10.3 and 10.0%, respectively. BIAS, CONFOUNDING AND OTHER REASONS FOR CAUTION Even though we have included women working at a single institution with a high response rate for the participation, we cannot exclude potential selection bias due to undetermined differences between our sample and background community. We might have underestimated actual prevalence of metabolic syndrome in PCOS due to lack of oral glucose tolerance test 2 h glucose data. GENERALIZABILITY TO OTHER POPULATIONS Current results can be generalized to Caucasian populations and may present variations in other populations according to race and ethnicity. STUDY FUNDING/COMPETING INTEREST(S) This work was, in part, sponsored by Merck Serono. TRIAL REGISTRATION NUMBER Not applicable.


Reproductive Biomedicine Online | 2008

Impact of isolated obesity on ICSI outcome

Ibrahim Esinler; Gurkan Bozdag; Hakan Yarali

The aim of this study was to assess the impact of isolated obesity on the outcome of intracytoplasmic sperm injection (ICSI). A total of 775 patients undergoing 1113 ICSI cycles were categorized on the basis of body mass index (BMI): group 1 (BMI 18.5-24.9 kg/m(2); normal weight; n = 627 cycles), group 2 (BMI 25.0-29.9 kg/m m(2); overweight; n = 339 cycles) and group 3 (BMI >or=30 kg/m(2); obese; n = 147 cycles). Sixty-three (10.0%) cycles in group 1, 53 (15.6%) cycles in group 2 and 26 cycles (17.7%) in group 3 were cancelled (P < 0.05 for group 1 versus groups 2 and 3). Despite the significantly higher total gonadotrophin consumption in groups 2 and 3 compared with group 1, the mean serum oestradiol level on the day of human chorionic gonadotrophin administration was significantly higher in group 1 (P < 0.05). The number of cumulus-oocyte complexes, metaphase II oocytes, and two-pronucleated oocytes were significantly lower in group 3 compared with group 1 (P < 0.05). However, fertilization rate, the mean number of embryos transferred, the mean number of grade 1 embryos transferred, clinical pregnancy, implantation, multiple pregnancy and miscarriage rates were comparable among the three groups. The rate of cycles with cryopreservable embryos was significantly lower in groups 2 and 3 compared with group 1 (P < 0.05).


Reproductive Biomedicine Online | 2008

What is the role of office hysteroscopy in women with failed IVF cycles

Gurkan Bozdag; Guldeniz Aksan; Ibrahim Esinler; Hakan Yarali

Recurrent implantation failure (RlF) may be due to unrecognized uterine pathology. Hysterosalpingography, transvaginal ultrasonography, saline infusion sonography and hysteroscopy are the tools to assess the inner architecture of the uterus. Hysteroscopy is considered to be the gold standard; however, the validity of hysteroscopy may be limited in the diagnosis of endometritis and endometrial hyperplasia. The frequencies of unrecognized uterine pathology revealed by hysteroscopy are 18-50% and 40-43% in patients undergoing IVF with or without RlF, respectively. Endometrial polyps may be associated with increased miscarriage rates. Implantation rates are decreased in patients with submucous or intramural fibroids with distorted uterine cavity. There is controversy on the impact of uterine septum less than 1 cm length on pregnancy outcome in IVF cycles. There is paucity of data on the role of hysteroscopy in failed IVF cycles. In the available two randomized controlled trials, pregnancy rates appear to be increased when hysteroscopy is performed; however within the hysteroscopy group, pregnancy rates are comparable among the normal or surgically corrected subgroups. Further studies are warranted to delineate the role of hysteroscopy in patients with failed IVF cycle(s). This review aims to evaluate the validity of office hysteroscopy in failed IVF cycles.


Fertility and Sterility | 2009

Antagonist/letrozole protocol in poor ovarian responders for intracytoplasmic sperm injection: a comparative study with the microdose flare-up protocol

Hakan Yarali; Ibrahim Esinler; Mehtap Polat; Gurkan Bozdag; Bulent Tiras

OBJECTIVE To compare the effect of the GnRH antagonist/letrozole protocol (AL) with the microdose GnRH agonist flare-up (MF) protocol in poor ovarian responders for intracytoplasmic sperm injection (ICSI). DESIGN Retrospective, case-control study. SETTING Anatolia Women and IVF Center. PATIENT(S) Eight hundred eighty-five consecutive patients (1383 cycles) predicted to have or with a history of poor ovarian response who were undergoing ICSI were enrolled. The MF protocol was used in 673 patients (1026 cycles), and the AL protocol was used in the remaining 212 patients (357 cycles). INTERVENTION(S) Controlled ovarian hyperstimulation and ICSI. MAIN OUTCOME MEASUREMENT(S) Cycle cancellation rate, number of oocytes retrieved, fertilization rate, embryo quality, clinical pregnancy, and implantation rates. RESULT(S) The total gonadotropin consumption, duration of stimulation, E(2) level on the day of hCG administration, and number of oocytes retrieved were significantly lower with the AL protocol compared with the MF protocol. However, the fertilization rate and the rate of at least one top-quality embryo transferred were higher with the AL compared with the MF protocol. The clinical pregnancy rates were comparable between the two groups. The implantation rates with the MF and AL protocols were 9.8% and 14.5%, respectively. CONCLUSION(S) The GnRH AL protocol is an effective protocol that may be used in poor ovarian responders for ICSI.


Reproductive Biomedicine Online | 2009

TESE-ICSI in patients with non-mosaic Klinefelter syndrome: a comparative study.

Hakan Yarali; Mehtap Polat; Gurkan Bozdag; Mufit Gunel; Idil Alpas; Ibrahim Esinler; Utku Dogan; Bulent Tiras

There are limited data in the literature on the performance of testicular sperm extraction (TESE) and intracytoplasmic sperm injection (ICSI) treatment in patients with Klinefelter syndrome. The current study compared TESE-ICSI treatment in patients with non-mosaic Klinefelter syndrome with controls having non-obstructive azoospermia and normal karyotype. Thirty-three consecutive patients (39 TESE-ICSI cycles) with Klinefelter syndrome (study group) and 113 consecutive patients (130 TESE-ICSI cycles) with non-obstructive azoospermia and normal karyotype (control group) were recruited in a private IVF setting. In the two groups, the mean ages of the men at the time of TESE were 32.0 +/- 6.4 and 34.3 +/- 5.8 years respectively (P < 0.05) and the successful sperm recovery rates per total TESE attempts were 56 (22/39) and 44% (57/130) respectively. Similarly, fertilization rates were comparable between the two groups. In the Klinefelter syndrome group, following biopsy and fluorescence in-situ hybridization, a normal karyotype was obtained in 42 of the 71 embryos (59%). The clinical pregnancy and implantation rates in the study and control groups were similar (39, 23 and 33, 26% respectively). In conclusion, patients with non-mosaic Klinefelter syndrome have sperm recovery and pregnancy rates comparable with patients having non-obstructive azoospermia and normal karyotype.


Gynecologic and Obstetric Investigation | 2012

Endometrioma ^ 3 cm in Diameter per se Does Not Affect Ovarian Reserve in Intracytoplasmic Sperm Injection Cycles

Ibrahim Esinler; Gurkan Bozdag; Ilker Arikan; Bulent Demir; Hakan Yarali

Background: Our aim was to determine the effect of single endometriomas ≤3 cm in diameter per se on ovarian reserve in intracytoplasmic sperm injection (ICSI) cycles. Methods: We enrolled 19 consecutive infertile patients (29 cycles) who had unilateral single endometriomas ≤3 cm in diameter and who underwent ICSI. Results: The mean age of the patients was 33.3 ± 4.9 years. The mean diameter of endometriomas was 21.8 ± 4.9 mm. Left- and right-sided endometriomas were 34.5 and 65.5%, respectively. The number of oocytes retrieved from ovaries with endometriomas and contralateral normal ovaries was comparable (5.9 ± 4.3 vs. 5.4 ± 3.8). Conclusion: Endometriomas ≤3 cm in diameter per se did not have a deleterious effect on ovarian reserve in ICSI cycles.


Fertility and Sterility | 2007

Polycystic ovary syndrome is associated with elevated plasma soluble CD40 ligand, a marker of coronary artery disease

Mesut Oktem; Emel Ebru Ozcimen; Ayla Uckuyu; Ibrahim Esinler; Baris Onder Pamuk; Nilufer Bayraktar; Sevsen Kulaksizoglu; Hulusi B. Zeyneloglu

OBJECTIVE To determine the level of plasma soluble CD40 ligand (sCD40L) in patients with polycystic ovary syndrome (PCOS). DESIGN Prospective study. SETTING Baskent University School of Medicine in Turkey. PATIENT(S) Thirty-one patients with PCOS and 31 non-PCOS (control) patients. INTERVENTION(S) Determination of plasma sCD40L and homocysteine levels. MAIN OUTCOME MEASURE(S) Plasma sCD40L, fasting glucose, fasting insulin, homeostatic model assessment insulin resistance index (HOMA-IR), LH, FSH, E(2), total T, DHEAS, total cholesterol, high- and low-density lipoprotein cholesterol, triglyceride, homocysteine, and high-sensitivity C-reactive protein (hsCRP). RESULT(S) The mean serum fasting insulin and HOMA-IR levels were significantly higher in the PCOS group. The mean serum homocysteine level was significantly higher in the PCOS group. Despite a trend for higher high-sensitivity C-reactive protein levels in the PCOS group, the difference did not reach statistical significance. The mean plasma sCD40L level in the PCOS group was significantly higher than that in the control group (5.14 +/- 3.65 ng/mL vs. 3.45 +/- 2.64 ng/mL, respectively). CONCLUSION(S) Polycystic ovary syndrome is associated with elevated levels of sCD40L and homocysteine.


Acta Obstetricia et Gynecologica Scandinavica | 2002

Hyperlipidemic pancreatitis during pregnancy

Ibrahim Bildirici; Ibrahim Esinler; Ozgur Deren; Tekin Durukan; Burhan Kabay; Lutfu S. Onderoglu

A case of acute pancreatitis associated with type V hyperlipoproteinemia is reported. A 26-year-old-woman was referred to our department with nausea, vomiting, and severe abdominal pain at 24 weeks gestation. Elevation of pancreatic enzymes with profound hypertriglyceridemia (60 mmol/L) was noticed, and a diagnosis of hyperlipidemic pancreatitis was made on the day of admission. Because she had no history of non-gestational hyperlipidemia, the observed hyperlipidemia was thought to be gestational in origin. The treatment consisted of nasogastric decompression, intravenous hyperalimentation, insulin infusion, and plasma exchanges. Progressive abatement of the symptoms occured, and on the fifth day of admission, complete resolution was observed. On the seventh day of hospitalization, advancing preterm labor and associated fetal distress was diagnosed, which necessitated a cesarean delivery. The infant was lost due to severe immaturity. Pancreatic pseudocyst formation complicated the postpartum period, which was managed by percutaneous drainage. Early diagnosis, close monitoring, consistent supportive treatment and awareness of complications are the key points in the management of gestational pancreatitis.


Reproductive Biomedicine Online | 2009

Single intramural leiomyoma with normal hysteroscopic findings does not affect ICSI–embryo transfer outcome

Gurkan Bozdag; Ibrahim Esinler; Kubra Boynukalin; T. Aksu; S. Gunalp; Timur Gurgan

Where there is no distortion of the endo-myometrial junction, the effect of an intramural leiomyoma on reproductive performance is controversial. The current study compared the performance of patients having a single leiomyoma and intact endometrium confirmed by hysteroscopy (study group) with that of controls having intact endometrium alone in intracytoplasmic sperm injection (ICSI) cycles. A total of 61 consecutive infertile patients were retrospectively enrolled into the study group from a computerized IVF database. The control group consisted of 444 age-matched patients undergoing ICSI-embryo transfer without any endocervical or intrauterine pathology confirmed by both transvaginal ultrasonography and office hysteroscopy. The baseline characteristics, performance of ovarian stimulation and embryological data were similar between the two groups. The clinical pregnancy per embryo transfer (36 versus 38%) and implantation rate (20 versus 19%) were also comparable. Although the miscarriage rate tended to be higher in the leiomyoma group (27 versus 19%), the difference did not reach statistical significance. In conclusion, in the presence of intact endometrium, a single intramural leiomyoma does not seem to have a deleterious effect on ICSI cycles. Before ICSI is attempted, hysteroscopy may be useful for ruling out distortion of the endometrium due to leiomyoma in selected cases.


International Journal of Gynecology & Obstetrics | 2009

Repeat LEEP conization in patients with cervical intraepithelial neoplasia grade 3 and positive ectocervical margins

Ali Ayhan; F. Kubra Boynukalin; Suleyman Guven; N. Utku Dogan; Ibrahim Esinler; Alp Usubutun

To evaluate the effectiveness of repeat loop electrosurgical excision procedure (LEEP) conization in patients with cervical intraepithelial neoplasia (CIN) grade 3 and positive ectocervical margins.

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T. Aksu

Hacettepe University

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Suleyman Guven

Karadeniz Technical University

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