Mehmet A. Osmanağaoğlu
Karadeniz Technical University
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Featured researches published by Mehmet A. Osmanağaoğlu.
Sao Paulo Medical Journal | 2006
Mehmet A. Osmanağaoğlu; Selen Osmanagaoglu; Hülya Ulusoy; Hasan Bozkaya
CONTEXT AND OBJECTIVE Despite the development of tertiary care facilities, intensive care and advanced blood banking techniques, pregnancy-related hypertensive disorders are the main cause of maternal mortality in most countries. Our purpose was to determine maternal outcome in pregnancies complicated by HELLP syndrome (hemolysis, elevated liver enzymes and low platelet count) that required intensive care management. DESIGN AND SETTING Retrospective study at Department of Obstetrics and Gynecology, and Department of Anesthesiology and Reanimation, Karadeniz Technical University, Trabzon, Turkey. METHODS 37 patients with HELLP syndrome admitted to the obstetric intensive care unit were analyzed retrospectively from 1992 to 2004. RESULTS All patients were hypertensive, with mean Glasgow coma score (GCS) of 11 +/- 3.96. Mean gestational age at delivery was 32 +/- 4.09 weeks. Delivery was vaginally in nine and by cesarean section in 27 patients. General anesthesia was used in 12 and spinal anesthesia in 25 patients. Maternal morbidity included acute renal failure (11%), disseminated intravascular coagulation (5%), acute lung edema (3%), severe ascites (11%), pleural effusion (3%), adult respiratory distress syndrome (11%), abruptio placenta (11%), cerebral edema (8%) and cerebral hemorrhage (40%). All patients required transfusions using blood products. There were 11 maternal deaths (30%). CONCLUSION Because of high maternal mortality and morbidity found among patients with HELLP syndrome, standard antenatal follow-up protocols should be applied, so as to obtain early diagnosis and improve the speed of transfer to obstetric departments with expertise in this field.
Archives of Gynecology and Obstetrics | 2005
Mehmet A. Osmanağaoğlu; Kenan Topcuoglu; Mehmet Özeren; Hasan Bozkaya
ObjectiveOur objective was to detect clinical evaluation of coagulation inhibitors in preeclamptic and normotensive pregnant women and to determine their important role in pathogenesis of preeclampsia.MethodsA total of 20 mild, 20 severe preeclamptic and 45 normotensive pregnant women were included in this study. The plasma value of antithrombin III (AT-III) activity, proteins C and S activity, PT, PTT, fibrinogen and platelet counts were determined.ResultsThe values AT-III were lower in women with severe preeclampsia than in controls (p<0.05). In all groups, there was no significantly difference in the concentration of protein C activity, protein S and fibrinogen (p>0.05). The plasma thrombocyte counts were significantly lower in severe preeclamptic women than in normotensive women (p<0.05). There was no significant difference in the prothrombin time value in all groups, but a significantly difference with regard to partial thromboplastin time between severe preeclamptic and the control group (p<0.0001). It was longer than the control.ConclusionThe markers of hemostasis activation such as protein S, protein C activity together with fibrinogen levels are not useful tools but the reduction of AT-III and platelet counts would seem useful in different pathological situations in pregnancy to predict and monitor the severity of the condition.
Journal of Perinatal Medicine | 2004
Mehmet A. Osmanağaoğlu; İnanç Erdoğan; Ülkü Zengin; Hasan Bozkaya
Abstract Aim: To compare perinatal outcome of patients with HELLP syndrome to that of patients with chronic hypertension and superimposed preeclampsia on chronic hypertension without HELLP syndrome. Methods: We retrospectively evaluated the perinatal outcome of 147 pregnancies complicated by the HELLP syndrome, chronic hypertension, and superimposed preeclampsia on chronic hypertension without HELLP syndrome. Results: Gestational age at delivery and birthweights were lower among women with HELLP syndrome than among women with superimposed preeclampsia and chronic hypertension (P < 0.05). There were no statistically significant differences among the three groups with respect to intrauterine growth retardation, respiratory distress syndrome, intraventricular hemorrhage, necrotizing enterocolitis, Apgar score, admission to neonatal intensive care unit, overall rate of cesarean delivery and cesarean delivery rate for fetal distress. The total perinatal mortality rate was 17% (28/147) and was more frequent in the HELLP group (27%). Multivariate logistic regression analysis showed that gestational age at delivery (RR 0.45) and birthweight (RR 0.99) were risk factors for adverse outcome. Conclusions: Perinatal outcome is primarily influenced by gestational age at delivery and birthweight independent of the severity of the hypertensive status of pregnant women.
Australian & New Zealand Journal of Obstetrics & Gynaecology | 2005
Mehmet A. Osmanağaoğlu; Gulseren Dinc; Selen Osmanagaoglu; Hasan Dinç; Hasan Bozkaya
Objective: To compare the cerebral magnetic resonance (MR) and electroencephalogram (EEG) findings in pre‐eclamptic and eclamptic pregnant women.
International Scholarly Research Notices | 2011
Mehmet A. Osmanağaoğlu; Turhan Aran; Suleyman Guven; Cavit Kart; Özgür Özdemir; Hasan Bozkaya
Objective. Conjoined twin is a rarely seen congenital anomaly together with severe mortality and morbidity. The more common types of conjoined twins include the thoracopagus type, where the fusion is anterior, at the chest, and involves the heart. We are reporting one case of conjoined thoracopagus twins diagnosed by ultrasonography at 11 weeks. Case Report. In a multigravid pregnant woman who has been admitted to our clinic with a diagnosis of conjoined twins, thoracopagus, by ultrasonography at an 11-week gestation, termination of the pregnancy was performed. Conclusion. Making an early diagnosis with ultrasonographic examination gives the parents a chance to elect pregnancy termination.
European Journal of Obstetrics & Gynecology and Reproductive Biology | 2003
Mehmet A. Osmanağaoğlu; Hasan Bozkaya; Mehmet Özeren; Ümit Çobanoğlu
A retroperitoneal liposarcoma that marginally involved the right kidney and ovary was presented clinically as an adnexial mass in a 61-year-old woman. At laparatomy a large retroperitoneal mass in addition to the right kidney and ovary was removed totally. A well-differentiated retroperitoneal liposarcoma was detected in histological speciment. Adjuvant irradiation was given. The 5-year survival rate of retroperitoneal liposarcoma is low. Curative resection remains the main treatment for primary and recurrent liposarcomas.
Journal of Obstetrics and Gynaecology | 2013
Ç. Bayram; Mehmet A. Osmanağaoğlu; Turhan Aran; Suleyman Guven; Hasan Bozkaya
A total of 57 pregnant women, who were admitted to the outpatient clinic having high visual analogue scale (VAS) and a history of chronic pelvic pain before pregnancy, were evaluated with the international pelvic pain assessment form (IPPAF). Gynaecological disorders, pain at ovulation, dysmenorrhoea, level of cramps with period and suspicion of endometriosis were determined to be higher in the pre-term group (p < 0.05). Regarding urological disorders, pain when the bladder was full, pain with urination, a positive answer to the question, ‘Does your urgency bother you?’ and suspicion of interstitial cystitis were also determined to be higher in the pre-term group (p < 0.05). Thus, the total IPPAF scores were significantly higher in the pre-term group (p < 0.05). The pregnant women with a higher total IPPAF score before pregnancy may thus have a higher probability of pre-term labour.
International Scholarly Research Notices | 2014
Mehmet A. Osmanağaoğlu; S. Caner Karahan; Turhan Aran; Suleyman Guven; Elif Turgut; Ahmet Mentese; Hasan Bozkaya
Objective. To investigate serum levels of free β-HCG, progesterone, and ischemia-modified albumin (IMA) and their combined use in the prediction of first trimester abortions. Methods. A total of 156 pregnant women between 5 and 13 weeks of gestational age were included in this study. At admission, serum levels of free β-HCG, progesterone, and IMA were noted and all cases were divided into two groups; Group I (n = 77) resulted in abortion including missed abortion, incomplete/complete abortion, and inevitable abortion whereas Group II (n = 79) included normal pregnancies. Results. Compared to Group II, the significantly decreased value of free β-HCG progesterone and significantly increased value of IMA were found in Group I (P < 0.01, P < 0.01, P < 0.01, resp.). When combining all three parameters, sensitivity 75%, specificity 99%, PPV 98%, and NPV 76% were obtained. The multivariate logistic regression analysis revealed the free β-HCG, progesterone, and IMA independent factors in the prediction of abortions. Conclusions. The combined use of free β-HCG, progesterone, and IMA levels can be useful in the prediction of first trimester spontaneous abortions.
Journal of Obstetrics and Gynaecology | 2013
Mehmet A. Osmanağaoğlu; H. Usul; E. Yuluğ; M. Kesim; S. C. Karahan
This study was conducted to investigate the hormonal and histological changes in the ovaries with high doses of methylprednisolone administration for acute spinal cord injury (SCI). Group I (trauma group, eight rats) were subjected to laminectomy and SCI but received no treatment. Group II (steroid group, eight rats) were subjected to SCI and received methylprednisolone (30 mg/kg, intraperitoneally). Group III (control group, six rats) underwent a sham operation without trauma and treatment. Malondialdehyde (MDA) levels were significantly decreased in Group II (p < 0.05). The scores of histopathological damage of the ovaries in the three groups were found to be statistically comparable (p > 0.05). Serum anti-Müllerian hormone (AMH) levels in the steroid group was significantly lower compared with the control group (p < 0.05). High-dose methylprednisolone administration may effect ovarian reserve with reversible ovarian damage and can resolve lipid peroxidation in rats with spinal cord injury.
Journal of Obstetrics and Gynaecology | 2018
Turhan Aran; Ipek Pekgöz; Hasan Bozkaya; Mehmet A. Osmanağaoğlu
Abstract We hypothesised that the pressure on the cervix increases with advancing gestation and it may lead to a cervical shortening and cause preterm labour in women with weak pelvic floor muscles. The aim of this prospective study was to measure vaginal resting pressure and pelvic floor muscle strength in the first trimester of pregnancy and to investigate their effects on labour. A study was conducted on the pregnant women with a low risk for preterm birth. The pelvic floor muscle strength and vaginal resting pressure were assessed in 320 pregnant women at their first trimester with a vaginal pressure measurement device. Fifty-two pregnant women were hospitalised for tocolytic therapy because of spontaneous preterm labour. Thirty-two of them (10.2%) had a preterm delivery despite the tocolytic therapy. Both the vaginal resting pressure (p = .009, 95%CI: 0.8; 5.9) and the pelvic floor muscle strength (p = .01, 95%CI: 3.5; 13.1) were significantly lower in the women with a preterm labour. Impact statement What is already known on this subject? The pelvic floor muscles have an essential role in continence and provide support to the pelvic organs. They also have an impact on labour. The pelvic floor muscles should distend to allow the passage of the foetus during labour. The rotation and flexion of the foetal head is due to the pelvic floor resistance. The effect of a vaginal birth on the pelvic floor’s function is readily understood. On the other hand, the effect of the pelvic floor muscle function on labour is still controversial. What do the results of this study add? This prospective study showed that there is a negative association between the pelvic floor muscle strength and preterm labour. This is the first clinical study indicating that weak pelvic floor muscles may cause a preterm labour. What are the implications of these findings for clinical practice and/or further research? Pelvic floor physical therapy may be an alternative preventive strategy to reduce the risk of a spontaneous preterm birth.