Özkan Öztürk

ORCID: 0000-0003-4715-0906
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About
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Research Areas
  • Assisted Reproductive Technology and Twin Pregnancy
  • Reproductive Biology and Fertility
  • Reproductive Health and Technologies
  • Prenatal Screening and Diagnostics
  • Sperm and Testicular Function
  • Ovarian function and disorders
  • Reproductive System and Pregnancy
  • Orthopedic Surgery and Rehabilitation
  • Neonatal and fetal brain pathology
  • Orthopaedic implants and arthroplasty
  • Neonatal Respiratory Health Research
  • Total Knee Arthroplasty Outcomes
  • Elbow and Forearm Trauma Treatment
  • Gynecological conditions and treatments
  • Gastrointestinal disorders and treatments
  • Ultrasound in Clinical Applications
  • Endometriosis Research and Treatment
  • Congenital Heart Disease Studies
  • Ectopic Pregnancy Diagnosis and Management
  • Sexual Differentiation and Disorders
  • Male Reproductive Health Studies
  • Global Socioeconomic and Political Dynamics
  • Genetic Syndromes and Imprinting
  • Unemployment and Economic Growth
  • demographic modeling and climate adaptation

Amasya Üniversitesi
2022-2024

The Centre for Reproductive & Genetic Health
2022-2024

MRC Centre for Reproductive Health
2022-2024

S.B. Keçiören Eğitim ve Araştırma Hastanesi
2018-2021

Erzurum Regional Training and Research Hospital
2020-2021

Hacettepe University
2018-2019

Ergani Devlet Hastanesi
2019

Kurume Institute of Technology
2018

Sağlık Bilimleri Üniversitesi
2018

University Gastroenterology
2018

The aim of this study was to analyse the semen quality patients before and after gonadotoxic therapy.We evaluated in 314 over a 26 year period. diagnostic categories were leukaemia (n = 13); lymphoma 128); testicular cancer 102); benign conditions other malignant neoplasms 58). degree azoospermia or oligozoospermia for each disease category recorded. We then analysed recovery time category.The mean patient age 27.9 years (range 13-65 years). A total 1115 post-treatment samples from patients....

10.1093/humrep/deh671 article EN Human Reproduction 2005-02-03

Gastrointestinal (GI) complications after cardiac surgery with cardiopulmonary bypass (CPB) are uncommon significant morbidity and mortality rates.From 1988 to 1995, 36 GI were identified in 3158 patients who underwent (1.14% incidence). The rate was 13.9%. Complications included hemorrhage the tract 22, perforated ulcer 3, acute cholecystitis pancreatitis 2, mesenteric ischemia diverticulitis 1 liver failure 2 patients.Clinical risk factors advanced age, combined coronary artery grafting...

10.1016/s1010-7940(96)80337-x article EN European Journal of Cardio-Thoracic Surgery 1996-01-01

Abstract Background The patterns of medication use among elderly inflammatory bowel disease patients vary due to several factors. This study aims present the outcomes immunomodulator therapy in both geriatric and non-geriatric patient groups, highlighting differences treatment effectiveness, reasons for discontinuation, incidence side effects between two groups. Methods A retrospective database was established by reviewing records aged 18 older who received at our clinic over a seven-year...

10.1093/ecco-jcc/jjae190.0832 article EN Journal of Crohn s and Colitis 2025-01-01

A new multiparameter sensor that combines electrochemical and fibre-optic technology was used for continuous in-vivo investigation of pH, carbon dioxide partial pressure (PCO2), oxygen (PO2), bicarbonate concentration (HCO3–), base excess, saturation (O2Sat) early in human pregnancy. The inserted into the amniotic cavity placental bed 16 pregnancies at 10–15 weeks gestation, before termination under general anaesthesia. Amniotic fluid retroplacental blood from same site were also aspirated...

10.1093/humrep/14.11.2901 article EN Human Reproduction 1999-11-01

YouTube is the most popular and largest video portal a source of information in all areas. In our study, we aim to investigate quality videos on spondylolisthesis detail parameters for low-quality videos. A search was made by using keyword "spondylolisthesis" portal. 50 watched were included study. The duration videos, view counts, like dislike number comments, date published, video's release time noted. Popularity determined Video Power Index (VPI) evaluated with DISCERN (Quality Criteria...

10.1016/j.inat.2020.100827 article EN cc-by-nc-nd Interdisciplinary Neurosurgery 2020-07-10

Objectives To determine fetal haemodynamic responses to hyperoxaemia and hypoxaemia in early pregnancy. Design Repeated measurements acute experiments. Setting Experimental physiology laboratory. Methods Non ‐ invasive Doppler ultrasound of the umbilical vein, ductus venosus, common carotid arteries 12 lambs (0.27–0.56 gestation) during maternal under ketamine anaesthesia. The effect gestational age, hyperoxaemia, were assessed based on analysis variance for dependent P ≤ 0.05 was considered...

10.1111/j.1471-0528.2001.00096.x article EN BJOG An International Journal of Obstetrics & Gynaecology 2001-04-01

"Successful pregnancy in globozoospermia with severe oligoasthenospermia after ICSI." Journal of Obstetrics and Gynaecology, 30(8), pp. 869–870

10.3109/01443615.2010.515321 article EN Journal of Obstetrics and Gynaecology 2010-11-01

Severely reduced fetal growth has been linked to gonadal dysfunction. The aim of this study was explore the link between birthweight and subsequent male infertility using Aberdeen Maternity Neonatal Databank (AMND).Assuming 80% power at 5% significance level, a minimum 126 men (63 in each group) required show mean difference 0.5 (SD = 1) standardized scores cases controls. Men born locally with unexplained factor (n 79) were identified from clinic database. normal semen parameters, attending...

10.1093/humrep/16.10.2238 article EN Human Reproduction 2001-10-01

Crimean-Congo haemorrhagic fever (CCHF) is a tick-borne disease endemic in Turkey since 2002. Çorum one of the leading five cities which CCHF seen most. We studied characteristics patients with tick bites our emergency department (ED) and determined fatality rate city for first time. retrospectively analysed admitted to ED from medical files 21,680 5-year period. The number definite diagnosis who have died was determined. Our results demonstrated that 6.78%. Among patients, blood samples 970...

10.1177/0049475513519625 article EN Tropical Doctor 2014-01-15

The positioning of the intra-aortic balloon catheter in descending aorta is vital for successful pumping. With transesophageal echocardiography, could be properly and rapidly positioned aorta.

10.1016/1010-7940(93)90150-a article EN European Journal of Cardio-Thoracic Surgery 1993-01-01
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