Şafak Hatırnaz

Prof. Dr. Şafak Hatırnaz

orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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21 June 2018 in Journal of Turkish Society of Obstetric and Gynecology
Verified
Journal Article
Open access
ŞHŞafak Hatırnaz
Şafak Hatırnaz
BABarış Ata
Barış Ata
EHEbru Saynur Hatırnaz
Ebru Saynur Hatırnaz
Michael DahanMichael Dahan
Michael Dahan
STSamer Tannus
Samer Tannus
STSeang Lin Tan
Seang Lin Tan
In vitro maturation (IVM) is one of the most controversial aspects of assisted reproductive technology. Although it has been studied extensively, it is still not a conventional treatment option and is accepted as an alternative treatment. However, studies have shown that IVM can be used in almost all areas where in vitro fertilization (IVF) is used and it has a strong place in fertility protection and Ovarian Hyperstimulation syndrome management. The aim of this systematic review was to address all aspects of the current knowledge of IVM treatment together with the evolution of IVM and IVF.

SASeda Şahin Aker
Seda Şahin Aker
Eser AgarEser Agar
Eser Agar
ANDREA TINELLIANDREA TINELLI
ANDREA TINELLI
ŞHŞafak Hatırnaz
Şafak Hatırnaz
FOFırat Ortaç
Fırat Ortaç
Background: The objective of this study is to evaluate the effect of HPV diagnosis on the sexual function and anxiety levels of Turkish women. Methods: A total of 274 female patients who tested positive with HPV were included in the study and categorized into four groups: Group 1 (HPV 16/18 with normal cytology), Group 2 (HPV 16/18 with abnormal cytology), Group 3 (other high-strain HPV with normal cytology), and Group 4 (other high-strain HPV with abnormal cytology). All patients filled out the Beck Anxiety Inventory (BAI) and Female Sexual Function Index (FSFI) at the time when they tested positive for HPV and during the two-month and six-month follow-ups. Results: Significant increases were observed in BAI scores in all four groups, whereas significant decreases were observed in total FSFI scores in Groups 1 and 2 only(p < 0.05). BAI scores of Groups 1 and 2 were significantly higher than those of Groups 3 and 4 (p < 0.05). FSFI scores of Groups 1 and 2 measured during the sixth-month follow-up were significantly decreased (p = 0.004 and p < 0.001, respectively). Conclusions: Our findings suggest that patients with HPV 16 and 18 positivity and abnormal cytological findings are more likely to have high anxiety and sexual dysfunction.

1 June 2017 in Journal of Turkish Society of Obstetric and Gynecology
Verified
Journal Article
Open access
ŞHŞafak Hatırnaz
Şafak Hatırnaz
MPMine Kanat Pektaş
Mine Kanat Pektaş
This study aimed to show whether transferring day 5 embryos resulted in higher implantation and pregnancy rates than transferring day 3 embryos in Turkish women undergoing an intracytoplasmic sperm injection (ICSI) cycle. A total of 190 women who had ICSI after retrieval of more than four oocytes on the day of fertilization check were randomly assigned to undergo embryo transfer either on day 3 or day 5. Day 3 and day 5 transfers were statistically similar with respect to the age of woman (p=0.107), duration of infertility (p=0.528), cause of infertility (p=0.850), number of collected oocytes (p=0.119), number of metaphase II oocytes (p=0.178), number of fertilized oocytes (p=0.092), and number of transferred embryos (p=0.556). The number of grade 1 embryos was significantly higher in day 5 transfers than in day 3 transfers (p=0.001). Day 3 and day 5 embryo transfers had statistically similar implantation, clinical pregnancy, twinning, and live birth rates (p=0.779, p=0.771, p=0.183, and p=0.649, respectively). The live birth rates in singleton pregnancies conceived after day 3 and day 5 embryo transfers were statistically similar (p=0.594). The efficacy of blastocyst transfer is not inferior to that of embryo transfer on cleavage stage. Performing blastocyst transfer may have benefits because it is associated with acceptable pregnancy rates and morphologic assessment on day 3 has limited predictive value for subsequent embryonic development.

9 February 2017 in The Journal of Maternal-Fetal & Neonatal Medicine
Verified
Journal Article
Closed access
ŞHŞafak Hatırnaz
Şafak Hatırnaz
OGOğuz GÜLER
Oğuz GÜLER
SBSerdar Başaranoğlu
Serdar Başaranoğlu
CTCengiz Tokgöz
Cengiz Tokgöz
GKGokhan S. Kılıç
Gokhan S. Kılıç
Study objective: Comparing surgical outcomes of a novel surgical technique endometrial myomectomy (EM) to serosal myomectomy (SM) during ceserean section (CS). Design: Retrospective cohort study (Canadian task force classification level II 1). Setting: Private hospital. Patients: Fourty-six women with leiomyomas during cesarean section Interventions: Endometrial myomectomy and serosal myomectomy during cesarean section between 2013 and 2016. Main outcome measures: Total 22 consequtive cases (Group 1) underwent EM in the last 2 years. The control group created from SM (Group 2) cases performed before EM implemented in our practice. Group 2 was matched based on anteriorly located intramural or submucosal leiomyoma. The size, location and number of leiomyoma, hematological course during pre- and postoperative period, the need for blood transfusion, duration of surgery, and any prolongation of hospital stay also documented. Results: Median number of leiomyoma was higher in EM than in SM (p = 0.001). Median myomectomy procedure time and amount of intra-operative bleeding in SM were higher than EM (respectively, p = 0.005 and p = 0.001). In terms of other variables, there is no difference between the two myomectomy groups (p > 0.05). Conclusion: This novel technique EM is a safe, feasible surgical technique compared with SM. Besides the less intra-operative blood loss, it also has the potential to diminish the risk of abdominal adhesion formation.

28 March 2022 in Journal of Turkish Society of Obstetric and Gynecology
Verified
Journal Article
Open access
ŞHŞafak Hatırnaz
Şafak Hatırnaz
EHEbru Saynur Hatırnaz
Ebru Saynur Hatırnaz
AKAşkı Ellibeş Kaya
Aşkı Ellibeş Kaya
KHKaan Hatırnaz
Kaan Hatırnaz
Canan Soyer caliskanCanan Soyer caliskan
Canan Soyer caliskan
Michael DahanMichael Dahan
Michael Dahan
A small proportion of infertile women experience repeated oocyte maturation abnormalities (OMAS). OMAS include degenerated and dysmorphic oocytes, empty follicle syndrome, oocyte maturation arrest (OMA), resistant ovary syndrome and maturation defects due to primary ovarian insufficiency. Genetic factors play an important role in OMAS but still need specifications. This review documents the spectrum of OMAS and to evaluate the multiple subtypes classified as OMAS. In this review, readers will be able to understand the oocyte maturation mechanism, gene expression and their regulation that lead to different subtypes of OMAs, and it will discuss the animal and human studies related to OMAS and lastly the treatment options for OMAs. Literature searches using PubMed, MEDLINE, Embase, National Institute for Health and Care Excellence were performed to identify articles written in English focusing on Oocyte Maturation Abnormalities by looking for the following relevant keywords. A search was made with the specified keywords and included books and documents, clinical trials, animal studies, human studies, meta-analysis, randomized controlled trials, reviews, systematic reviews and options written in english. The search detected 3,953 sources published from 1961 to 2021. After title and abstract screening for study type, duplicates and relevancy, 2,914 studies were excluded. The remaining 1,039 records were assessed for eligibility by full-text reading and 886 records were then excluded. Two hundred and twenty seven full-text articles and 0 book chapters from the database were selected for inclusion. Overall, 227 articles, one unpublished and one abstract paper were included in this final review. In this review study, OMAS were classified and extensively evaluatedand possible treatment options under the light of current information, present literature and ongoing studies. Either genetic studies or in vitro maturation studies that will be handled in the future will lead more informations to be reached and may make it possible to obtain pregnancies.

9 October 2017 in Archives of Gynecology and Obstetrics
Verified
Journal Article
Closed access
PDF file
STSamer Tannus
Samer Tannus
ŞHŞafak Hatırnaz
Şafak Hatırnaz
Justin TanJustin Tan
Justin Tan
BABaris Ata
Baris Ata
STSeang Lin Tan
Seang Lin Tan
Michael DahanMichael Dahan
Michael Dahan