Namık Kemal Duru
Military Medical Academy
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Featured researches published by Namık Kemal Duru.
Gynecological Endocrinology | 2010
Cihangir Mutlu Ercan; Mehmet Sakinci; Namık Kemal Duru; İbrahim Alanbay; Kazim Emre Karasahin; Iskender Baser
Objective. To evaluate whether a change takes place in antimullerian hormone (AMH) levels reflecting the ovarian reserve after laparoscopic endometrioma stripping surgery and to demonstrate if there is any correlation between AMH levels and the sizes of endometriomas. Method. Fourty-seven women participated as the study group in this prospective controlled trial, 33 of whom (70.2%) had unilateral and 14 (29.7%) of whom had bilateral endometriomas. Pre- and post-operative serum AMH levels were measured and compared with 17 normo-ovulatory control cases and also correlated with endometrioma sizes. Result(s). Mean pre-operative AMH levels of the study group and the normo-ovulatory control cases did not reveal a statistically significant difference (1.62 ± 1.09 ng/ml and 2.06 ± 0.51 ng/ml, P > 0.05). Mean level of post-operative serum AMH of the study group decreased from 1.62 ± 1.09 to 1.39 ± 1.16. However, this reduction was not statistically significant. (P > 0.05). Pre- and post-operative AMH levels do not reveal a correlation with the size of endometrioma in both group of patients with either unilateral or bilateral endometrioma. Conclusion(s). The presence of the endometrioma does not impair the AMH levels. Laparoscopic endometrioma stripping surgery do not appear to cause a damage in the AMH secreting healthy ovarian tissue, in the short-term follow-up. Laparoscopic stripping surgery of endometriomas in experienced hands is currently a valid approach.
European Journal of Obstetrics & Gynecology and Reproductive Biology | 2011
Cihangir Mutlu Ercan; Namık Kemal Duru; Kazim Emre Karasahin; Hakan Coksuer; Murat Dede; Iskender Baser
OBJECTIVE To evaluate the ovarian reserve after laparoscopic stripping of unilateral endometriomas by comparing the operated and non-operated ovaries. STUDY DESIGN Bilateral ovarian volumes, antral follicle counts, and stromal blood flows were assessed by ultrasonography and anti-mullerian hormone (AMH) levels were analysed in 36 patients who had undergone laparoscopic cystectomy for unilateral ovarian endometrioma. RESULTS Mean antral follicle counts (AFC) of the operated side ovaries were significantly lower on the second postoperative day (3.1 ± 2.4 vs 5.2 ± 3.7; p<0.05) and in the third month (3.7 ± 2.1 vs 6.4 ± 2.7; p<0.05). Pulsatility indices of the operated ovaries were significantly decreased on the second postoperative day (2.22 ± 0.46 vs 1.76 ± 0.51; p<0.05) while resistance indices were increased (0.81 ± 0.06 vs 0.88 ± 0.13; p<0.05). Doppler parameters had recovered and a non-significant decrease in AMH levels of the patients was recorded in the third month after surgery (2.03 ± 0.41 ng/mL vs 1.95 ± 0.62 ng/mL; p>0.05). CONCLUSION Although laparoscopic stripping of endometriomas seems to affect the ovarian reserve in terms of AFCs, it does not have a significant negative impact at the end of three months as assessed by ovarian volumes, Doppler indices and AMH levels. Endometrioma surgery techniques are important in preserving normal functioning ovaries and further studies are necessary for optimising these surgical approaches.
Gynecological Endocrinology | 2006
Yaprak Engin-Üstün; Cem Korkmaz; Namık Kemal Duru; Iskender Baser
Aim. To compare pregnancy outcomes between three sperm retrieval techniques – electroejaculation, testicular sperm extraction (TESE) and prostatic massage – in spinal cord-injured men. Method. Forty-four patients who became paraplegic due to spinal cord injuries by land mines and bullets, and who underwent infertility treatment during 1998–2005, were included. Eight men were treated with rectal probe electroejaculation, 26 with TESE and ten with prostatic massage. The pregnancy rate and live birth rate resulting from the embryo transfers of all cycles were calculated. Results. Eight singleton pregnancies were achieved, two in the electroejaculation group, four in the TESE group and two in the prostatic massage group. Live birth rate was not significantly different between the three groups. Conclusion. Our results show that the different sperm retrieval techniques used to obtain semen in spinal cord-injured men resulted in similar pregnancy outcomes.
Archives of Gynecology and Obstetrics | 1999
Bahri Ustunsoz; A. Alemdarogˇlu; Nail Bulakbasi; Ali İhsan Uzar; Namık Kemal Duru
Abstract. A 20 cm hepatic hydatid cyst with daughter cysts, was diagnosed in a primigravida in the fifteenth week of pregnancy and was managed percutaneously. No complications occurred and the patient subsequently gave birth to a healthy baby.
Korean Journal of Radiology | 2008
Bahri Ustunsoz; Sahin Ugurel; Namık Kemal Duru; Yasar Ozgok; Ayfer Ustunsoz
Objective We wanted to present the results of percutaneous management of ureteral injuries that were diagnosed late after cesarean sections (CS). Materials and Methods Twenty-two cases with 24 ureteral injuries that were diagnosed late after CS underwent percutaneous nephrostomy (PN), antegrade double J (DJ) catheter placement and balloon dilatation or a combination of these. The time for making the diagnosis was 21 ± 50.1 days. The injury site was the distal ureter in all cases (the left ureter: 13, the right ureter: 7 and bilateral: 2). Fifteen complete ureteral obstructions were detected in 13 cases. Ureteral leakage due to partial (n = 4) or complete (n = 3) rupture was noted in seven cases. Two cases had ureterovaginal fistula. All the cases were initially confirmed with antegrade pyelography and afterwards they underwent percutaneous nephrostomy. Balloon dilatation was needed in three cases. Antegrade DJ stents were placed in 10 cases, including the three cases with balloon dilatation. Repetititon of percutaneous nephrostomy with balloon dilatation and DJ stent placement was needed in one case with complete obstruction. All the cases were followed-up with US in their first week and then monthly thereafter for up to two years. Results Eighteen ureters (75%) were managed by percutaneous procedures alone. A total of six ureter injuries had to undergo surgery (25%). Conclusion Percutaneous management is a good alternative for the treatment of post-CS ureteral injuries that are diagnosed late after CS. Percutaneous management is at least preparatory for a quarter of the cases where surgery is unavoidable.
Gynecological Endocrinology | 2009
Cihangir Mutlu Ercan; Namık Kemal Duru; Mehmet Sakinci; İbrahim Alanbay; Kazim Emre Karasahin; Iskender Baser
Polycystic ovary syndrome (PCOS) is one of the most common reproductive endocrinopathy and a major cause of infertility. PCOS may be associated with chronic anovulation and endometrial hyperplasia. Conservative treatment should be considered in young women wishing to preserve their fertility. Standard treatment for complex endometrial hyperplasia is the use of high-dose progesterone, whereas we preferred levonorgestrel-releasing intrauterine system (LNG-IUS) as a last resort in our patient who was resistant to oral gestagens. We present a case with complex atypical endometrial hyperplasia treated conservatively in a long-term period first by oral gestagens, then by LNG-IUS. In our case, LNG-IUS was more effective than oral systemic progestins, not only for reducing the menstrual blood loss but also for improving the pathological findings. After extraction of LNG-IUS rapid achievement of pregnancy was carried out by intracytoplasmic sperm injection and embryo transfer and she took home twin babies. To the best of our knowledge, this is the first successful twin pregnancy case with ICSI and ET in a patient with oral gestagen resistant endometrial complex/atypical hyperplasia achieved after application of LNG-IUS. In complex atypical hyperplasia, LNG-IUS should be kept in mind as an effective alternative treatment modality before assisted reproductive technology (ART).
European Journal of Obstetrics & Gynecology and Reproductive Biology | 2014
Cihangir Mutlu Ercan; Özlem Seçilmiş Kerimoğlu; Mehmet Sakinci; Cem Korkmaz; Namık Kemal Duru; Ali Ergün
OBJECTIVE To present our in vitro fertilization outcomes after implementation of the Turkish government policy limiting the number of transferred embryos to one, in women under the age of 35, and two, in women over age 35; and to demonstrate the feasibility of this policy. STUDY DESIGN We retrospectively reviewed the records of 423 patients who underwent ovarian stimulation, oocyte pick-up, intracytoplasmic sperm injection and embryo transfer due to primary or secondary infertility over a 22-month time interval. Clinical pregnancy was defined as a fetal heartbeat in the seventh gestational week. Embryo transfers were carried out on day 3 or 5. Descriptive statistics are given as the number of subjects and percentages. RESULTS A total of 353 embryo transfers were performed: 261 (73.9%) were single-embryo transfer (244 (69.1%) elective and 17 (4.8%) non-elective) and 92 (26.1%) were double-embryo transfer. Of the 244 elective single-embryo transfers, 6.6% (n=16) were performed using frozen-thawed embryos. The average patient age was 29.6±4.5 years in the single-embryo group and 36.5±2.4 years in the double-embryo group. The cumulative pregnancy rates per oocyte pick-up were similar in both groups: 41% (n=107) in the single-embryo group and 43.4% (n=40) in the double-embryo group (p=0.678). The cumulative live birth rate of the single-embryo group (32.1%) was not statistically different from the double-embryo group (35.8%) (p=0.518). The twin pregnancy rate after single-embro transfer was significantly lower than with double-embryo transfer (2.8% (n=3) vs. 32.5% (n=13); p<0.001) and 62.5% of the twin pregnancies occurred in women 35 years or older who underwent double-embryo transfer. No significant difference in the spontaneous abortion rates was recorded between the single- and double-embryo transfer groups (16 (6.1%) vs. 6 (6.5%); p=0.894). CONCLUSION Single-embryo transfer results in a pregnancy rate comparable to double-embryo transfer, with a significantly reduced multiple pregnancy rate. Double-embryo transfer in patients over age 35 should be reconsidered because of the resulting high rate of multiple pregnancy.
Gynecological Endocrinology | 2008
Seyit Temel Ceyhan; Umit Goktolga; Emre Karasahin; İbrahim Alanbay; Namık Kemal Duru
Severe ovarian hyperstimulation syndrome (OHSS) is a serious and potentially fatal complication of ovarian stimulation. A 29-year-old nulligravid patient with anovulatory infertility was treated with in vitro fertilization. Six days after embryo transfer, the patient presented with complaint of abdominal bloating, nausea, vomiting and shortness of breath. Severe late-onset OHSS, with massive ascites and pleural effusion, was diagnosed. Posterior colpotomy was performed under general anesthesia, a Foley catheter was inserted into the posterior cul-de-sac, and bilateral chest drainage tubes were left for continuous drainage. In total, 13.2 liters of ascites and 6.1 liters of pleural fluid were drained in 8 days. Continuous drainage of ascites and pleural effusion improved the patients comfort without need for repeated transvaginal and thoracic aspirations.
Journal of Obstetrics and Gynaecology | 2013
Uğur Keskin; Namık Kemal Duru; Cihangir Mutlu Ercan; Murat Dede; Müfit Cemal Yenen; Ali Ergün
This study is aimed to evaluate the impact of laparoscopic salpingostomy on ovarian stromal blood flow indices in patients with ectopic pregnancy, and to compare the ovarian stromal blood flow indices with matched paired healthy women. We included 37 patients who underwent laparoscopic salpingostomy and 37 age- and parity-matched women as controls. The main outcome was the differences in ovarian volume, antral follicle count (AFC), and ovarian stromal blood flow indices between the study group participants after the surgery and the healthy controls. Comparison of the ovarian parameters between the study group after the surgery and the control group revealed no significant differences in terms of ovarian volume (p = 0.783), AFC (p = 0.253), ovarian stromal S/D ratios (p = 0.054), pulsatility index (PI; p = 0.938) and resistance index (RI; p = 0.041). In addition, comparison of the ovarian parameters before and after the surgical treatment revealed no significant differences in the ovarian volume (p = 0.141), AFC (p = 0.084), ovarian stromal S/D ratios (p = 0.187), PI (p = 0.102) and RI (p = 0.108). In conclusion, laparoscopic salpingostomy does not affect ovarian function in terms of ovarian stromal blood flow indices, ovarian volume, and AFC.
International journal of Gynecology, Obstetrics and Neonatal Care | 2015
Ayse Gungor; Cem Korkmaz; M. Ozekinci; Ali Seven; Nüket Unsal; Namık Kemal Duru
The effect of obesity on ovarian response to ovulation induction and on in vitro fertilization (IVF) outcome is controversial. This controversy might stem from the fact that almost all studies on the subject use body mass index (BMI) for obesity measurement. We aimed to determine which obesity measure predicts the possible effect of obesity on ovarian response in IVF patients. In this retrospective study, patients who presented for IVF and underwent an antagonist protocol were included. Their histories and cycle properties were recorded, as well as their BMI and waist-tohip (W/H) ratios. A total of 35 patients were included. While normal BMI significantly lowered the gonadotropin dose, normal W/H ratio increased the antral follicle count (AFC). Both BMI and W/H ratio did not significantly affect either the number of oocytes retrieved or the metaphase II oocytes. Ovulation induction during IVF cycles can overcome the adverse effects of obesity on ovarian reserve. Large-sample-sized, well-designed studies must be performed to clarify the best obesity measurement method for infertility treatment and to determine the real effect of obesity on IVF success.