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  1. Article ; Online: Fertility preservation in early-stage endometrial cancer and endometrial intraepithelial neoplasia: A single-center experience.

    Ayhan, Ali / Tohma, Yusuf Aytac / Tunc, Mehmet

    Taiwanese journal of obstetrics & gynecology

    2020  Volume 59, Issue 3, Page(s) 415–419

    Abstract: Objective: The purpose of this study was to define the pregnancy and oncologic outcomes after fertility-sparing treatment of atypical hyperplasia (AH)/endometrial intraepithelial neoplasia (EIN) and early-stage endometrioid endometrial cancer (EEC).: ... ...

    Abstract Objective: The purpose of this study was to define the pregnancy and oncologic outcomes after fertility-sparing treatment of atypical hyperplasia (AH)/endometrial intraepithelial neoplasia (EIN) and early-stage endometrioid endometrial cancer (EEC).
    Materials and methods: The retrospective cohort study included patients who had applied to Başkent University's Ankara Hospital between January 2007 and October 2018 with either AH/EIN (n: 27; Group A) or EEC (n: 30; Group B), and who had the desire to preserve their fertility. The medical records of all patients included in the study were reviewed retrospectively from the hospital records.
    Results: There were 2 (7.4%) and 5 (16.7%) recurrences, whereby one patient from Group A and two patients from Group B underwent staging surgery. In Group A, 8 patients attempted pregnancy after their treatment and 4 of them (50%) became pregnant, while 3 of them (37.5%) had a live birth. In Group B, there were 17 patients who wanted to become pregnant following treatment of the disease; 8 of them (47%) became pregnant after treatment, 5 of them (16.6%) had a live birth, 1 experienced intrauterine exitus (at 21st gestational week, 350 g), and 2 currently have ongoing pregnancies.
    Conclusion: Hysteroscopic resection of visible lesions and full endometrial curettage prior to hormonal therapy as a fertility-preserving approach for women of reproductive age with endometrial malignancies can achieve promising oncologic and obstetric responses.
    MeSH term(s) Adult ; Antineoplastic Agents, Hormonal/adverse effects ; Carcinoma in Situ/pathology ; Carcinoma in Situ/therapy ; Endometrial Hyperplasia/pathology ; Endometrial Hyperplasia/therapy ; Endometrial Neoplasms/pathology ; Endometrial Neoplasms/therapy ; Female ; Fertility Preservation/methods ; Humans ; Hysteroscopy/methods ; Infertility, Female/chemically induced ; Infertility, Female/prevention & control ; Neoplasm Staging ; Precancerous Conditions ; Pregnancy ; Retrospective Studies ; Treatment Outcome
    Chemical Substances Antineoplastic Agents, Hormonal
    Language English
    Publishing date 2020-05-13
    Publishing country China (Republic : 1949- )
    Document type Evaluation Study ; Journal Article
    ISSN 1875-6263
    ISSN (online) 1875-6263
    DOI 10.1016/j.tjog.2020.03.014
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  2. Article ; Online: Early pregnancy after bariatric surgery: a single-institute preliminary experience

    Günakan, Emre / Buluş, Hakan / Tohma, Yusuf Aytaç

    Turkish journal of medical sciences

    2020  Volume 50, Issue 1, Page(s) 171–176

    Abstract: Background/aim: Pregnancy after bariatric surgery is an issue of growing importance with increasing number of women undergoing bariatric surgery. Therefore, in this study we present patients who conceived after sleeve gastrectomy and evaluate the ... ...

    Abstract Background/aim: Pregnancy after bariatric surgery is an issue of growing importance with increasing number of women undergoing bariatric surgery. Therefore, in this study we present patients who conceived after sleeve gastrectomy and evaluate the obstetric outcomes.
    Materials and methods: This retrospective case-control study includes 23 women who conceived after laparoscopic sleeve gastrectomy. Patients were evaluated in two groups according to the number of months between surgery and conception (group 1: ≤12 months; group 2: >12 months).
    Results: The mean body mass index of patients before surgery and at the time of conception was 46.6 kg/m2 and 29.7 kg/m2, respectively. Nine patients (39.1%) had a history of infertility. There was no statistical difference between groups 1 and 2 for haemoglobin, ferritin, and 25-OH Vit-D levels or maternofoetal complication rates and pregnancy outcomes. Enteral nutrition requirements and intravenous iron replacement needs were higher in group 1, although this difference was not statistically significant.
    Conclusion: Pregnancy in the first years after sleeve gastrectomy seems to have similar obstetric outcomes compared to pregnancies occurring later, but it remains a controversial issue. Although the results did not have statistical significance in our study, well-designed prospective series may determine the role of enteral nutrition and intravenous iron replacement in patient management.
    MeSH term(s) Adult ; Bariatric Surgery/methods ; Female ; Gastrectomy/methods ; Humans ; Laparoscopy ; Pregnancy ; Pregnancy Outcome ; Retrospective Studies
    Language English
    Publishing date 2020-02-13
    Publishing country Turkey
    Document type Journal Article
    ZDB-ID 1183461-4
    ISSN 1303-6165 ; 1300-0144
    ISSN (online) 1303-6165
    ISSN 1300-0144
    DOI 10.3906/sag-1909-139
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  3. Article ; Online: Diet and pravastatin administration prior to

    Zeyneloglu, Hulusi Bulent / Tohma, Yusuf Aytac / Gunakan, Emre / Abasıyanık, Mehmet Ali / Sozen, Ceren / Onalan, Gogsen

    Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology

    2022  Volume 42, Issue 6, Page(s) 2235–2240

    Abstract: In this study, we aimed to identify whether using statins may increase the chance of pregnancy ... ...

    Abstract In this study, we aimed to identify whether using statins may increase the chance of pregnancy in
    MeSH term(s) Cholesterol ; Diet ; Dyslipidemias/drug therapy ; Female ; Fertilization in Vitro/methods ; Humans ; Hydroxymethylglutaryl-CoA Reductase Inhibitors ; Lipids ; Male ; Pravastatin/therapeutic use ; Pregnancy ; Pregnancy Outcome ; Pregnancy Rate ; Retrospective Studies ; Semen
    Chemical Substances Hydroxymethylglutaryl-CoA Reductase Inhibitors ; Lipids ; Cholesterol (97C5T2UQ7J) ; Pravastatin (KXO2KT9N0G)
    Language English
    Publishing date 2022-03-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 604639-3
    ISSN 1364-6893 ; 0144-3615
    ISSN (online) 1364-6893
    ISSN 0144-3615
    DOI 10.1080/01443615.2022.2036968
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  4. Article ; Online: Granulocyte colony-stimulating factor in assisted reproductive technology treatment does not increase the risk of adverse perinatal outcomes in twin pregnancies.

    Atasoy Karakas, Latife / Esin, Sertac / Sahin Uysal, Nihal / Tohma, Yusuf Aytac / Onalan, Gogsen / Zeyneloglu, Hulusi Bulent

    Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology

    2023  Volume 43, Issue 1, Page(s) 2186776

    Abstract: The aim of the study is to compare the perinatal outcomes of twin pregnancies resulting from assisted reproductive technology (ART) treatment in which granulocyte colony-stimulating factor (G-CSF) was used with those in which it was not. In this ... ...

    Abstract The aim of the study is to compare the perinatal outcomes of twin pregnancies resulting from assisted reproductive technology (ART) treatment in which granulocyte colony-stimulating factor (G-CSF) was used with those in which it was not. In this retrospective study, the clinical data of 122 dichorionic diamniotic twin pregnancies were reviewed. Pregnancies were divided into two groups, G-CSF-treated and non-G-CSF treated. Maternal age, gestational week at birth, oligohydramnios, gestational hypertension, pre-eclampsia, preterm birth, first-trimester bleeding, gestational diabetes, rupture of membrane, foetal congenital anomalies, admission to the neonatal intensive care unit, birth weight (BW), small for gestational age, BW discordance, Apgar score and placental weight were compared between the groups.IMPACT STATEMENT
    MeSH term(s) Pregnancy ; Infant, Newborn ; Female ; Humans ; Pregnancy, Twin ; Retrospective Studies ; Premature Birth ; Placenta ; Pregnancy Outcome ; Reproductive Techniques, Assisted ; Birth Weight ; Granulocyte Colony-Stimulating Factor
    Chemical Substances Granulocyte Colony-Stimulating Factor (143011-72-7)
    Language English
    Publishing date 2023-03-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 604639-3
    ISSN 1364-6893 ; 0144-3615
    ISSN (online) 1364-6893
    ISSN 0144-3615
    DOI 10.1080/01443615.2023.2186776
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  5. Article ; Online: May myo-inositol and d-chiro-inositol (40:1) treatment be a good option on normal-weighted polycystic ovary syndrome patients without insulin resistance?

    Colak, Eser / Ozcimen, Emel Ebru / Tohma, Yusuf Aytac / Ceran, Mehmet Ufuk

    The journal of obstetrics and gynaecology research

    2020  

    Abstract: Aim: To investigate the effectiveness of myo-inositol and d-chiro-inositol (MI:DCI) (40:1) treatment in normal-weight polycystic ovary syndrome (PCOS) patients without insulin resistance.: Methods: This retrospective case-control study included PCOS ... ...

    Abstract Aim: To investigate the effectiveness of myo-inositol and d-chiro-inositol (MI:DCI) (40:1) treatment in normal-weight polycystic ovary syndrome (PCOS) patients without insulin resistance.
    Methods: This retrospective case-control study included PCOS patients without insulin resistance who were diagnosed in the gynecology and obstetrics clinic of Başkent University Konya Practice and Research Hospital between January 2016 and October 2019 and received at least 6 months of MI:DCI (40:1) treatment. The patients were divided into two groups according to body mass index (BMI). Twenty-nine anovulatory patients without insulin resistance with a BMI of 18-25 were included in group 1 (normal-weight group), whereas 17 patients without insulin resistance with BMI > 25 were included in group 2 (obese/overweight group). Ovulation status of both groups was compared after MI:DCI treatment.
    Results: Ovulation was detected in 23 of 29 patients in the normal-weight group, whereas it was detected only in 5 of 17 patients in the obese/overweight group; this difference was statistically significant (P < 0.001) (Table 2, Figure 1). Post-treatment progesterone levels of both groups were compared and in the normal-weight PCOS group was significantly higher than the obese/overweight group (P < 0.001) (Table 2, Figure 2). In addition, spontaneous pregnancy following treatment was observed in six of the seven (85.7%) patients in the normal-weight group who wanted to conceive, whereas it was observed in only two of the six (33.3%) patients in the obese/overweight group who wanted to conceive.
    Conclusion: Our results showed that MI:DCI (40:1) treatment may be a first-line treatment in normal-weight PCOS patients without insulin resistance.
    Language English
    Publishing date 2020-09-28
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 1327307-3
    ISSN 1447-0756 ; 1341-8076
    ISSN (online) 1447-0756
    ISSN 1341-8076
    DOI 10.1111/jog.14505
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  6. Article ; Online: Dydrogesterone primed luteal phase stimulation may be better than follicular phase stimulation in patients with diminished ovarian reserve.

    Zeyneloglu, Hulusi Bulent / Tohma, Yusuf Aytac / Gunakan, Emre / Onalan, Gogsen / Eryılmaz, Tahir

    Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology

    2021  Volume 37, Issue 11, Page(s) 1000–1002

    Abstract: Objective: In this study, we aimed to compare the efficacy of luteal phase stimulation (LPS) and follicular phase stimulation (FPS) in two separate menstrual cycles (2-5 months intervals) of the same patient, utilizing LPS with dydrogesteron only.: ... ...

    Abstract Objective: In this study, we aimed to compare the efficacy of luteal phase stimulation (LPS) and follicular phase stimulation (FPS) in two separate menstrual cycles (2-5 months intervals) of the same patient, utilizing LPS with dydrogesteron only.
    Methods: This retrospective case control study was conducted with patients with diminished ovarian reserve (DOR) (Group 1) and infertile patients with Anti-Müllerian hormone >1.2 ng/mL (Group 2) undergoing two ovarian stimulations (FPS and LPS with dydrogesteron only) and two oocyte retrievals in two separate menstrual cycles (2-5 months intervals) in the Division of Reproductive Endocrinology and Infertility of Baskent University, Ankara, between April 2019 and December 2019.
    Results: In group 1, the number of frozen embryos was significantly higher in LPS when compared to FPS; 1.71 vs. 0.54, (
    Conclusion: LPS may be beneficial especially in the patients with diminished ovarian reserve with follicular asynchronization in the menstrual onset. In addition, it should be kept in mind that dydrogesterone only may be used instead of gonadotropin-releasing hormone antagonist to prevent possible luteinizing hormone rise in LPS.
    MeSH term(s) Adult ; Dydrogesterone/administration & dosage ; Female ; Follicular Phase ; Humans ; Luteal Phase ; Ovarian Reserve ; Ovulation Induction/methods ; Progestins/administration & dosage ; Retrospective Studies
    Chemical Substances Progestins ; Dydrogesterone (90I02KLE8K)
    Language English
    Publishing date 2021-05-04
    Publishing country England
    Document type Comparative Study ; Journal Article
    ZDB-ID 639237-4
    ISSN 1473-0766 ; 0951-3590
    ISSN (online) 1473-0766
    ISSN 0951-3590
    DOI 10.1080/09513590.2021.1922885
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  7. Article: Repeated dose of prostaglandin E2 vaginal insert when the first dose fails.

    Karadağ, Ceyda / Esin, Sertaç / Tohma, Yusuf Aytaç / Yalvaç, Ethem Serdar / Başar, Tuğrul / Karadağ, Burak

    Turkish journal of obstetrics and gynecology

    2021  Volume 18, Issue 1, Page(s) 50–55

    Abstract: Objective: To compare the obstetric and neonatal outcomes of patients treated with repeated-dose prostaglandin E2 (dinoprostone) vaginal insert when the first dose fails.: Materials and methods: This retrospective study included 1.043 pregnant women ... ...

    Abstract Objective: To compare the obstetric and neonatal outcomes of patients treated with repeated-dose prostaglandin E2 (dinoprostone) vaginal insert when the first dose fails.
    Materials and methods: This retrospective study included 1.043 pregnant women who received dinoprostone for labor induction between November 2012 and August 2015. Pregnant women were divided into two groups according to the number of dinoprostone administrations: group 1, single-dose dinoprostone (n=1.000), and group 2, repeated-dose dinoprostone (n=43). Intrapartum, postpartum, and neonatal outcomes of the pregnant women were compared.
    Results: Vaginal delivery rate was 65% in group 1 and 30.2% in group 2 (p=0.001). The need for the neonatal intensive care unit was found in 44 pregnant women (4.4%) in group 1 and 6 pregnant women (13.6%) in group 2 (p=0.006).
    Conclusion: When obstetric and neonatal data were evaluated in our study, we observed that dinoprostone administration was associated with increased cesarean rates and adverse neonatal outcomes with repeated-dose dinoprostone when the first dose failed.
    Language English
    Publishing date 2021-03-14
    Publishing country Turkey
    Document type Journal Article
    ISSN 2149-9322
    ISSN 2149-9322
    DOI 10.4274/tjod.galenos.2021.34119
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  8. Article ; Online: Risk factors for cervical stromal involvement in endometrioid-type endometrial cancer.

    Toprak, Serhat / Sahin, Eda Adeviye / Sahin, Hanifi / Tohma, Yusuf Aytac / Yilmaz, Ercan / Meydanli, Mehmet Mutlu

    International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics

    2021  Volume 153, Issue 1, Page(s) 51–55

    Abstract: Objective: The aim of this study was to identify predictors of cervical stromal involvement in women with endometrioid-type endometrial cancer (EEC).: Methods: A total of 795 patients with EEC who underwent comprehensive surgical staging including ... ...

    Abstract Objective: The aim of this study was to identify predictors of cervical stromal involvement in women with endometrioid-type endometrial cancer (EEC).
    Methods: A total of 795 patients with EEC who underwent comprehensive surgical staging including pelvic and para-aortic lymph node dissection between January 2007 and December 2018 were retrospectively analyzed. Data including age, menopausal status, serum CA-125 levels, tumor size, lymphovascular space invasion (LVSI), depth of myometrial invasion, positive peritoneal cytology, cervical stromal involvement, histologic grade, recurrence, and follow-up duration were recorded.
    Results: Median follow up was 49 months. Cervical stromal invasion was found in 88 patients. Multivariate analysis revealed that presence of LVSI (hazard ratio [HR] 2, 95% confidence interval [CI] 1.02-4.25, P = 0.045), a primary tumor diameter of at least 3 cm (HR 3, 95% CI 1.31-7.25, P = 0.010), and at least 50% deep myometrial invasion (HR 2.7, 95% CI 1.37-5.41, P = 0.004) were independent risk factors for cervical stromal involvement in patients with EEC.
    Conclusion: Our study results suggest that presence of LVSI, a primary tumor diameter of at least 3 cm, and LVSI of at least 50% seem to be independent predictors of cervical involvement in women with EEC.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Carcinoma, Endometrioid/pathology ; Endometrial Neoplasms/pathology ; Female ; Humans ; Lymph Nodes/pathology ; Lymphatic Metastasis/pathology ; Middle Aged ; Neoplasm Invasiveness/pathology ; Neoplasm Recurrence, Local/pathology ; Neoplasm Staging ; Peritoneum/pathology ; Retrospective Studies ; Risk Factors
    Language English
    Publishing date 2021-01-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80149-5
    ISSN 1879-3479 ; 0020-7292
    ISSN (online) 1879-3479
    ISSN 0020-7292
    DOI 10.1002/ijgo.13449
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  9. Article ; Online: Granulocyte colony-stimulating factor for intracytoplasmic sperm injection patients with repeated implantation failure: which route is best?†.

    Zeyneloglu, Hulusi Bulent / Tohma, Yusuf Aytac / Onalan, Gogsen / Moran, Utkun

    Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology

    2019  Volume 40, Issue 4, Page(s) 526–530

    Abstract: The aim of this study was to assess whether the dual administration of granulocyte colony-stimulating factor (G-CSF) increases the effect of only systemic administration in patients with RIF. This retrospective study included 111 infertile normoresponder ...

    Abstract The aim of this study was to assess whether the dual administration of granulocyte colony-stimulating factor (G-CSF) increases the effect of only systemic administration in patients with RIF. This retrospective study included 111 infertile normoresponder cases with two or more unsuccessful
    MeSH term(s) Abortion, Habitual/etiology ; Abortion, Habitual/therapy ; Adult ; Drug Administration Routes ; Embryo Transfer/methods ; Female ; Fertilization in Vitro/adverse effects ; Fertilization in Vitro/methods ; Fertilization in Vitro/statistics & numerical data ; Granulocyte Colony-Stimulating Factor/administration & dosage ; Humans ; Infertility/etiology ; Infertility/therapy ; Live Birth ; Male ; Oocyte Retrieval/methods ; Ovulation Induction/methods ; Pregnancy ; Pregnancy Outcome ; Pregnancy Rate ; Sperm Injections, Intracytoplasmic/methods ; Turkey/epidemiology
    Chemical Substances Granulocyte Colony-Stimulating Factor (143011-72-7)
    Language English
    Publishing date 2019-09-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 604639-3
    ISSN 1364-6893 ; 0144-3615
    ISSN (online) 1364-6893
    ISSN 0144-3615
    DOI 10.1080/01443615.2019.1631772
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  10. Article: Prognostic impact of p16 and p53 gene expressions in stage 1a epithelial ovarian cancer.

    Günakan, Emre / Tohma, Yusuf Aytaç / Karakaş, Latife Atasoy / Akıllı, Hüseyin / Haberal, Asuman Nihan / Ayhan, Ali

    Obstetrics & gynecology science

    2020  Volume 63, Issue 4, Page(s) 464–469

    Abstract: Objective: Epithelial ovarian cancer (EOC) is rarely detected at stage 1a. Most of the patients have a good prognosis and there are limited factors that affect their survival. In the present study, we evaluated the p16 and p53 gene expressions of stage ... ...

    Abstract Objective: Epithelial ovarian cancer (EOC) is rarely detected at stage 1a. Most of the patients have a good prognosis and there are limited factors that affect their survival. In the present study, we evaluated the p16 and p53 gene expressions of stage 1a EOC patients. Prognostic effects of these gene expressions, as well as those of other factors on short term survival were analyzed.
    Methods: Our study included 29 patients. The specimens of the ovary with cancer were stained for p16 and p53. Gene expressions and other prognostic factors were evaluated.
    Results: The median age of the patients was 51 years (27-84). The mean numbers of dissected pelvic and paraaortic lymph nodes were 27 and 12, respectively. The mean follow-up time was 33.7±18.9 months. During this period, recurrence occurred in two patients. One of the patients had grade 2 mucinous carcinoma and died of the disease at month 12 after the recurrence occurred at month 7. The second patient had clear cell carcinoma and recurrence occurred at month 34. p16 and p53 gene expressions or other factors were not associated with overall survival (OS) or disease-free survival in the short term. The lower p16 positivity rate in the non-clear cell group was found to be statistically significant (P=0.003). Both p53 and p16 positivity rates were higher in the high-grade carcinoma.
    Conclusion: The levels of none of the common prognostic factors, including those of p16 and p53 gene expression, were associated with the progression-free survival or OS of stage 1a in the short term. Appropriate surgical staging and non-omission of subclinical metastases seem to be of central importance.
    Language English
    Publishing date 2020-06-19
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 2814367-X
    ISSN 2287-8580 ; 2287-8572
    ISSN (online) 2287-8580
    ISSN 2287-8572
    DOI 10.5468/ogs.19204
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