Publications by authors named "Bulent Urman"

Background: Subtle uterine lesions are abnormal intracavitary conditions that, while not causing significant anatomical changes, can adversely impact fertility. Identifying these "subtle" lesions is challenging due to arbitrary interpretation, varied management strategies, unclear clinical significance, and insufficient clinician training in recognizing them. Hysteroscopy offers direct visualization and the capacity to obtain targeted biopsies, making it an invaluable tool for the diagnosis and treatment of these often overlooked conditions.

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Introduction: The diagnostic workflow for endometrial carcinoma in postmenopausal asymptomatic women remains an ongoing dilemma. Whereas an ultrasonographic endometrial thickness greater than 4.0 or 5.

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Article Synopsis
  • - Hysteroscopy is an important gynecological procedure, but traditional training methods face ethical and safety concerns, increasing the need for simulation training to improve skills among medical students and residents.
  • - A systematic review analyzed studies from January 2000 to December 2023, finding that simulation training, especially with virtual reality, significantly enhances hysteroscopic skills, although the long-term retention of these skills and the development of related non-technical skills need further investigation.
  • - The findings suggest that simulation-based training is effective for skill improvement in hysteroscopy, but more rigorous research, including randomized trials, is crucial for confirming these benefits and exploring broader training outcomes.
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Study Question: Does medroxyprogesterone acetate (MPA) exposure in progestin-primed ovarian stimulation (PPOS) cycles cause molecular perturbations in the steroidogenic function and gonadotropin responsiveness of the granulosa cells?

Summary Answer: PPOS cycles are identical to traditional GnRH antagonist cycles not only for clinical IVF characteristics but also for gonadotropin receptor expression, response to gonadotropins, and steroidogenic function at the molecular level.

What Is Known Already: PPOS is increasingly used as an alternative to GnRH antagonists due to the inhibitory effect of progesterone on LH release by reducing GnRH pulsatility at the hypothalamic level. Although a growing body of evidence from clinical studies did not indicate significant differences between PPOS and antagonist protocols for IVF cycle characteristics and obstetrical outcomes, it is still unknown whether exposure of the antral follicle cohort to progesterone or its synthetic derivatives during ovarian stimulation causes any subtle molecular aberrations in terms of steroidogenesis and gonadotropin responsiveness.

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Objective: This review aims to consolidate current research on cervical elongation, a common but often overlooked complication in pelvic organ prolapse and hysteropexy procedures. It seeks to define, diagnose, and manage cervical elongation, aiming to establish standardized criteria and strategies to enhance clinical outcomes for this condition.

Data Sources: A comprehensive search of the PubMed/MEDLINE, Cochrane Library, and Web of Science databases was executed utilizing the keywords: "cervical elongation," "long cervix uteri," "Manchester," and "cervical amputation".

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Reproductive failure due to age, genetics and disease necessitates innovative solutions. While reproductive tissue transplantation has advanced, ongoing research seeks superior approaches. Biomaterials, bioengineering and additive manufacturing, such as three-dimensional (3D) bioprinting, are harnessed to restore reproductive function.

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Background Isthmocele or a scar defect is a relatively common consequence of cesarean section resulting in menstrual disturbances and infertility and may compromise the myometrial integrity of the uterus in women contemplating subsequent vaginal birth. Several preventive measures have been suggested, including the modification of surgical techniques used for the closure of the uterine incision. The current study aimed to compare the incidence of isthmocele and assess residual myometrial thickness in women who underwent single versus parallel layered closure to approximate the endo-myometrial layer during cesarean section.

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This study intended to investigate if gynecological cancers compromise ovarian function and reduce the success of assisted reproduction techniques (ART). No clinical and molecular data together is available on this issue for gynecological or other organ cancers. Steroidogenic pathways and DNA damage response characteristics of the granulosa cells retrieved from the 39 gynecological cancer patients were analyzed together with their clinical ART characteristics in comparison to 31 control ART patients.

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Objective: The aim of this study was to describe characteristics and outcomes of assisted reproductive technology (ART) cycles performed in 2019 in Turkey.

Material And Methods: One-hundred and sixty-five ART centers in Turkey were invited to submit data. The survey was sent to center directors via e-mail with anonymous links by Qualtrics™.

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Objective: To propose a new classification system (Urman-Vitale Classification System) for intrauterine adhesions (IUAs) and to evaluate anatomical and fertility outcomes after hysteroscopic adhesiolysis accordingly.

Methods: A retrospective analysis of consecutive patients treated over 11 years by a single operator in a tertiary care hospital. Women with sonographic suspicion of IUAs were scheduled for hysterosalpingography (HSG) and hysteroscopy for confirmation and treatment.

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Background: To date hysteroscopy is the gold standard technique for the evaluation and management of intrauterine pathologies. The cervical canal represents the access route to the uterine cavity. The presence of cervical stenosis often makes entry into the uterine cavity difficult and occasionally impossible.

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Article Synopsis
  • The development of minimally invasive techniques has led to the widespread use of hysteroscopy in modern gynecology for evaluating and treating intrauterine issues.
  • Endometrial ablation (EA) is an effective procedure for treating heavy menstrual bleeding in patients who haven't responded to medication and prefer to keep their uterus.
  • A review of literature from 1994 to June 2022 found that hysteroscopic EA is generally safe and effective for managing abnormal uterine bleeding, highlighting the need for further research on its use in patients with premalignant lesions.
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Abnormal uterine bleeding (AUB) is a frequent symptom in perimenopausal women. It is defined as uterine bleeding in which the duration, frequency, or amount of bleeding is considered excessive and negatively affects the woman's quality of life (QoL) and psychological well-being. In cases of structural uterine pathology, hysterectomy (usually performed via a minimally invasive approach) offers definitive symptom relief and is associated with long-lasting improvement of QoL and sexuality.

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Oocyte pick-up (OPU) is considered as a minor surgical procedure and complications are very rare when performed by trained physicians. However, data on training standards are limited and assessment of proficiency is challenging. The aim of this study was to show the impact of physician experience on OPU performance in mono-follicular in vitro fertilization (IVF) cycles, using two measurable outcome parameters: successful oocyte retrieval and operative time.

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Research Question: What are the trends and changes in patient demographics and practices in treatment with assisted reproductive technology (ART) in Turkey over 25 years?

Design: Data on patient demographics, cycle characteristics and clinical outcome of 29,541 cycles in 22,867 women who underwent treatment with ART between 1996 and 2020 were analysed according to calendar years. Regression and interrupted time series analysis were used to assess changes in patient characteristics, trends and effects of interventions on outcome.

Results: From 1996 to 2020, the average age of women undergoing treatment with ART increased from 32.

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During the last decades, the number of couples with reproductive issues has substantially increased. Many different factors are implicated in reproductive failure, including uterine factors. Endometrial pathologies, such as endometrial polyps, hyperplasia, endometritis, and Mullerian anomalies, can also hinder embryo implantation.

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Research Question: What is the prevalence of T-shaped uteri among fertile women based on ESHRE/ESGE and Congenital Uterine Malformation by Experts (CUME) criteria?

Design: A prospective cohort study of 258 women of reproductive age with a history of at least one natural pregnancy resulting in live birth. Participants were recruited from the family planning clinic between January 2018 and March 2020. The ESHRE/ESGE classification of congenital anomalies of the female genital tract was used for describing abnormal findings.

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Objective: Assessment of the optimal number of follicular flushes on retrieval rate and quality of oocytes in mono-follicular in-vitro fertilization (IVF) cycles.

Material And Methods: A retrospective analysis of 246 oocyte pick-up procedures in mono-follicular IVF cycles of 226 poor responder women was performed. The primary endpoint was oocyte retrieval rate in the initial aspirate versus subsequent flushing episodes.

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Purpose: To evaluate the prevalence and factors associated with decision regret following oocyte cryopreservation (OC) in women with diminished ovarian reserve (DOR) and/or age-related fertility decline (ARFD).

Methods: A cross-sectional survey study was conducted to five hundred fifty-two women with DOR and/or ARFD who underwent OC between 2014 and 2019 in two private-assisted reproductive units in Istanbul, Turkey. Decision regret was measured using the validated Decision Regret Scale (DRS).

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To evaluate the expectations, experiences, and fertility awareness status of women who underwent social oocyte cryopreservation. Cohort survey study was conducted at an academic medical center. All women who underwent social oocyte cryopreservation between January 2015 and June 2016 were recruited.

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Introduction: We aimed to analyze the preliminary experience of a mini-plus percutaneous instrument (MpPc) setting in total laparoscopic hysterectomy (TLH).

Material And Methods: Forty-three women who underwent a mini-plus percutaneous total laparoscopic hysterectomy at a tertiary-care university-based teaching hospital and academic affiliated private hospital between May 2017 and 2018 were included. MpPc-TLH was performed through one optical trans-umbilical 5-mm trocar, one 5-mm ancillary port on the right side, either one 2.

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. The aim of this study was to assess postoperative incisional pain and cosmetic scores in mini-laparoscopic gynecological surgeries undertaken with different port sizes. .

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Objective: To evaluate the effect of endometrial volume (EV) on the live birth rates (LBR)s in fresh or frozen embryo transfer (ET) cycles.

Material And Methods: This is a prospective study including all women who underwent a fresh or frozen single blastocyst transfer between January 2017 and September 2018 in a university affiliated private hospital. Patients with advanced age (>42years), congenital uterine anomalies, endometrial or myometrial abnormalities, those with a difficult ET, those with only poor-quality blastocysts available for transfer, those in whom an optimal 3D TVUS image could not be obtained and those who were lost to follow-up were excluded.

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