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Dive into the research topics where Cavidan Gulerman is active.

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Featured researches published by Cavidan Gulerman.


Journal of Womens Health | 2009

The relationship between obesity and fecundity.

Nafiye Yilmaz; Sevtap Kilic; Mine Kanat-Pektas; Cavidan Gulerman; Leyla Mollamahmutoglu

OBJECTIVE Obesity is an important factor that might reduce fecundity. In order to determine the underlying physiological mechanisms and risk factors, the obesity-fecundity association is investigated in relation to parity, menstrual cycle regularity, smoking habits, and age. METHODS This was a retrospective cohort study of 22,840 women who gave birth between January 2006 and January 2007 in the Dr Zekai Tahir Burak Womens Health Research and Education Hospital. Age, parity, prepregnancy body mass index (BMI) values, time to pregnancy data related to smoking, and reproductive, medical, and gynecological history were obtained from the medical records. RESULTS Fecundity was reduced for overweight and obese women compared with optimal weight women, and this reduction was more evident for obese primiparous women. Fecundity remained reduced for overweight and obese women with normal menstrual cycles. Obese and overweight women were found to smoke significantly more than the optimal weight group. CONCLUSIONS Obesity was found to be associated with reduced fecundity for all weight-adjusted groups of women and persisted for women with regular cycles. Weight loss should be encouraged initially during the treatment of infertile overweight and obese women.


Fertility and Sterility | 2011

A comparison of the effects of three different luteal phase support protocols on in vitro fertilization outcomes: a randomized clinical trial

Turgut Var; Esra Tonguc; Melike Doğanay; Cavidan Gulerman; Tayfun Gungor; Leyla Mollamahmutoglu

OBJECTIVE To evaluate the effects of three different luteal phase support protocols on pregnancy and implantation rates, as well as luteal phase hormone profile in intracytoplasmic sperm injection-ET cycles. DESIGN A prospective, randomized study. SETTING A tertiary teaching and research hospital. PATIENT(S) Two hundred eighty-eight patients who were undergoing intracytoplasmic sperm injection with a long protocol of controlled ovarian hyperstimulation. INTERVENTION(S) Group 1 (E(2) + P) received daily P plus 4 mg of E(2), group 2 (hCG + P) received P plus 1,500 IU of hCG, and group 3 (P only) received daily vaginal P gel. Blood samples were drawn on the day of hCG administration, as well as 7 and 10 days after the hCG for the E(2) and P measurements. MAIN OUTCOME MEASURE(S) The clinical pregnancy rate. RESULT(S) No difference existed between the E(2) + P and hCG + P groups with respect to pregnancy rate, but it was significantly lower in the P-only group.The implantation rate was significantly lower in the P-only group than in the other groups.The highest miscarriage rate was in the P-only group (38%). CONCLUSION(S) In assisted reproductive technology cycles including treatment with GnRH agonist, adding 4 mg of oral E(2) to P during the luteal phase significantly increased the pregnancy and implantation rates and decreased the miscarriage rate compared with the use of P only.


Journal of Obstetrics and Gynaecology Research | 2008

The correlation of plasma homocysteine with insulin resistance in polycystic ovary syndrome

Nafiye Yilmaz; Mine Kanat Pektaş; Esra Tonguc; Sevtap Kilic; Cavidan Gulerman; Tayfun Gungor; Leyla Mollamahmutoglu

Aim:  This study aims to investigate the existence of any relationship between homocysteine levels and insulin resistance in Turkish women with polycystic ovary syndrome.


Fertility and Sterility | 2010

Comparison of the effectiveness of single versus double intrauterine insemination with three different timing regimens

Esra Tonguc; Turgut Var; Gogsen Onalan; Sibel Altinbas; Aytekin Tokmak; Nafiye Karakaş; Cavidan Gulerman

OBJECTIVE To compare double insemination with two different single insemination regimens. DESIGN Prospective study. SETTING Tertiary education and research hospital. PATIENT(S) Four hundred and fifty patients with unexplained infertility, male factor, and ovulatory dysfunction underwent controlled ovarian hyperstimulation with gonadotropin. INTERVENTION(S) The patients were divided randomly into three groups: patients in group 1 underwent a single preovulatory intrauterine insemination (IUI) performed 24 hours after hCG administration. Patients in group 2 underwent two IUIs performed 12 and 36 hours after hCG administration. Patients in group 3 underwent a single periovulatory IUI performed 36 hours after hCG administration. MAIN OUTCOME MEASURE(S) Pregnancy rate. RESULT(S) The total pregnancy rate per patient was 14.2 % (64 pregnancies in 450 patients). Group 1 had 17 pregnancies (11.3%), while groups 2 and 3 had 21 (14.0%) and 26 (17.2%) pregnancies, respectively. The difference between the three groups in regard to pregnancy rates was statistically not significant. CONCLUSION(S) Despite the 36th hour being the preferred timing for IUI, there was no difference regarding pregnancy rates between single 24th hour and double 12th- and 36th-hour inseminations. This finding suggests that the 24th-hour IUI might be preferred in demanding situations.


Taiwanese Journal of Obstetrics & Gynecology | 2010

Randomized trial of vaginal prostaglandin E2 versus oxytocin for labor induction in term premature rupture of membranes.

Cigdem Kunt; Mine Kanat-Pektas; Ayse Nur Cakir Gungor; Raziye Keskin Kurt; Mustafa Ozat; Cavidan Gulerman; Tayfun Gungor; Leyla Mollamahmutoglu

OBJECTIVE The aim of this study was to compare the efficacy and safety of a prostaglandin E(2) (PGE(2)) vaginal insert with those of oxytocin for labor induction. The present study also examined whether its use reduces the rate of cesarean delivery in term pregnancies with premature rupture of membranes (PROM) and low Bishop scores. MATERIALS AND METHODS A total of 240 women with singleton pregnancies at >or= 37 weeks, no prior uterine scar, vertex presentations, reactive nonstress tests, PROM for >or= 12 hours and Bishop scores of <or= 6 were randomly assigned to receive either oxytocin or vaginal PGE(2). The primary outcomes were time from induction to delivery and mode of delivery. RESULTS The time from labor induction to active labor onset was significantly shorter in the oxytocin group than in the PGE(2) group (4.9 +/- 4.1 vs. 8.5 +/- 3.6 hours; p = 0.02). The time from induction to delivery was also significantly shorter in the oxytocin group (3.4 +/- 1.5 vs. 9.6 +/- 4.7 hours; p = 0.02). Cesarean delivery rates were statistically similar in the oxytocin and PGE(2) groups (18.3 vs. 20.0%; p = 0.81). Neonatal outcomes were comparable in both groups. Comparable results were observed for nulliparous women included in the study population. CONCLUSION Oxytocin treatment seems to be superior to vaginal administration of PGE(2) to induce labor in term pregnancies complicated with PROM and unfavorable services.


Journal of Maternal-fetal & Neonatal Medicine | 2009

Medical or surgical abortion and psychiatric outcomes

Nafiye Yilmaz; Mine Kanat-Pektas; Sevtap Kilic; Cavidan Gulerman

Aim. The objectives of this study are to compare the risk of psychological depression after medical and surgical abortions in first two trimesters and to evaluate the risk factors for post-abortion depression. Method. A retrospective study was conducted throughout 367 women who underwent surgical abortion and 458 women who underwent medical abortion between January 2006 and January 2007 in Dr. Zekai Tahir Burak Womens Health Hospital. Women were assessed by clinical psychologists one week after the intervention. The clinical characteristics and psychological assessment of these women were statistically correlated by means of non-parametric tests. Results. Of the study population, 27.1% was diagnosed with post-abortion depression. The frequency of post-abortion depression was 34.3% in surgical abortion patients and 22.8% in medical abortion patients. The women who underwent surgical abortion were found to have significantly elevated risk of post-abortion depression. The women with a high risk of post-abortion depression were significantly younger and had a more frequent history of psychiatric and depressive disorders. Conclusion. An important quotient of women experiences post-abortion mood depression which is significantly more frequent after surgical abortion. Women with past psychiatric and anxiety disorders should be carefully monitored for depression when they would undergo an abortion.


Gynecological Endocrinology | 2012

Serum brain natriuretic peptide and C-reactive protein levels in adolescent with polycystic ovary syndrome

Rüya Deveer; Yaprak Engin-Üstün; Sema Uysal; Filiz Akın Su; Seval Sarıaslan; Cavidan Gulerman; Leyla Mollamahmutoglu

Objective: Our primary aim was to investigate whether N-terminal pro-brain natriuretic peptide (NT-proBNP) increases in adolescent with polycystic ovary syndrome (PCOS) compared with healthy controls and secondary aim was to determine whether metabolic and hormonal differences exist between groups. Methods: In this cross-sectional study, 25 adolescent patients with PCOS and 25 normal ovulatory control not suffering from PCOS were involved in the study. Fasting serum NT-proBNP, C-reactive protein (CRP), homocystein, insulin levels and biochemical and hormonal parameters were measured. Results: Serum NT-proBNP was not significantly different in PCOS subjects (0.62 ± 0.80 vs 1.12 ± 1.51 ng/mL, p = 0.154). The mean serum fasting insulin levels (22.64 ± 10.51 vs 13.32 ± 3.97 mIU/mL, p = 0.001) and Homeostasis Model Assessment Insulin–Resistance Index (HOMA-IR) levels (5.16 ± 1.81 vs 2.97 ± 0.89, p = 0.001) were significantly high in the study group. The median serum CRP levels were not significantly different between groups (1 [1–12] vs 1 [1–19] g/dL, p = 0.286). Conclusions: The present study demonstrated that the levels of BNP, CRP and homocystein were not different in PCOS subjects. Serum insulin levels and HOMA-IR were significantly higher in PCOS subjects. Possible serum markers for PCOS-related metabolic abnormalities and cardiovascular events, may not present in the adolescent years.


Journal of The Chinese Medical Association | 2017

Prostaglandin E2 induction of labor and cervical ripening for term isolated oligohydramnios in pregnant women with Bishop score ≤ 5

Hatice Kansu-Celik; Ozlem Gun-Eryılmaz; Nasuh Utku Dogan; Seval Haktankaçmaz; Mehmet Çınar; Saynur Yılmaz; Cavidan Gulerman

Background We aimed to evaluate the efficacy and safety of dinoprostone for cervical ripening and labor induction in patients with term oligohydramnios and Bishop score ≤ 5. Methods This was a prospective case–control study, which included 104 consecutive women with a Bishop score ≤ 5. Participants were divided into two groups. Women with term isolated oligohydramnios and Bishop score ≤ 5 underwent induction of labor with a vaginal insert containing 10‐mg timed‐release dinoprostone (prostaglandin E2; Group A, n = 40). The control group, Group B, consisted of 64 cases of pregnancy with normal amniotic fluid volume (amniotic fluid index ≥ 5 cm) and Bishop score ≤ 5, and was matched for patients age and parity. The primary outcome was time from induction to delivery; the secondary outcomes were the caesarean section (CS) rate, uterine hyperstimulation, rate of failed induction, and neonatal complications. Results The mean time interval from induction to delivery was not different between the two groups (p = 0.849), but there was a statistically significant difference between the groups in terms of the CS rate (p = 0.005). There were no differences between the groups in neonatal outcome or perinatal morbidity or mortality. Conclusion Dinoprostone appears to be a safe alternative for induction of labor in pregnancies with oligohydramnios. Induction of labor with dinoprostone in term pregnancies with isolated oligohydramnios is associated with increased rate of CS but there is no higher risk of perinatal complications.


Obstetrics and Gynecology International | 2013

Unattended Home Labor until Complete Cervical Dilatation Ending with Hospital Delivery: Analysis of 238 Pregnancies

Ozlem Gun Eryilmaz; Nasuh Utku Dogan; Cavidan Gulerman; Leyla Mollamahmutoglu; Nedim Cicek; Rüya Deveer

Objectives. Hospital fear and avoidance of the routine hospital obstetrical interventions cause some women with low-risk pregnancies to spend most of the active labor period at home, and subsequently they present to the hospital for delivery. Our aim was to analyze the maternal and neonatal outcomes of pregnancies with a planned hospital birth, yet spending the first stage of labor at home without a health provider and completing the delivery in the hospital setting. Methods. We retrospectively compared 238 pregnancies having home labor plus hospital delivery (study group) with 476 pregnancies that had spent the whole labor in the hospital setting, considering various maternal and neonatal outcomes. Results. Cesarean and episiotomy rates were lower (P < 0.0001 and P < 0.001, resp.), but neonatal intensive care unit admissions of the infants were more prevalent (P < 0.01) in the study group. Other maternal and neonatal outcomes including neonatal mortality were comparable. Conclusion. Although our preliminary data generally do support the safety of home active labor plus hospital delivery for low-risk pregnancies, the clinical implications of current data warrant further prospective trials.


Gynecological Endocrinology | 2013

The impact of single embryo transfer policy on pregnancy outcomes after legislative change.

Nafiye Yilmaz; Yaprak Engin-Üstün; Hasan Inal; Umit Gorkem; Yeşim Bardakcı; Cavidan Gulerman

Abstract We evaluated the effect of mandatory single embryo transfer (SET) on live birth rates and pregnancy outcomes in Turkey. A retrospective study was conducted in Zekai Tahir Burak Women’s Health Education and Research Hospital. Four hundred and four patients undergoing intracytoplasmic sperm injection (ICSI) cycles were included in the study. In Turkey, the number of embryos to be transferred in an assisted cycle was limited to three under normal circumstances until 6 March 2010. After that, new legislation was introduced to promote the application of SET. Outcomes were compared in periods of 1 year before and after the new law. We compared pregnancy outcomes of all assisted reproductive cycles in SET cycles (group 1: n = 281) with double embryo transfer (DET) cycles (group 2: n = 123). There were significant differences in oocyte number, multiple pregnancy, gestational age, birth weight and perinatal fetal morbidity between the groups (p = 0.023, 0.001, 0.001, 0.001, 0.001, respectively). But there were no differences in age, baseline FSH, infertility period, stimulation protocol, stimulation day, gonadotrophin dose, clinical pregnancy rate, abortion rate, live birth rate and cesarean rate (p > 0.05). These results suggest that under the new legislation multiple pregnancy rates and perinatal complications are significantly reduced without causing a significant decline in the pregnancy rates.

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Berna Seckin

Süleyman Demirel University

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Esma Sarıkaya

Yıldırım Beyazıt University

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Ayse Nur Cakir Gungor

Çanakkale Onsekiz Mart University

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