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Öğe Aspirin use in branch retinal vein occlusion in diabetic and hypertensive patients(2013) Önder H.I.; Tunç M.; Yüksel H.; Önder E.; Kaya M.Purpose: The aim was to investigate whether aspirin use is a risk factor in Branch retinal vein occlusion in hypertensive and diabetic patients. Materials and Methods: The study included 30 hypertensive patients who were diagnosed branch retinal vein occlusion. Visual acuity, width of retinal hemorrhages, macular edema and retinal neovascularization were compared between aspirin using and non-using patients. Results: Of the 30 cases, 18 were using aspirin, 12 were not. Visual acuity less than 0.1 was observed in 10 of 18 aspirin using patients and 3 of 12 non-using patients (p = 0.09). There was no correlation between visual acuity and wide of retinal hemorrhage. Conclusion: The use of aspirin in patients with well controlled hypertension and diabetes may positively effect the visual outcome.Öğe Comparison of Deep Learning Models for Body Cavity Fluid Cytology Images Classification(Institute of Electrical and Electronics Engineers Inc., 2022) Ucan M.; Kaya B.; Kaya M.Disease detection is successfully performed in many medical fields using medical images and deep learning architectures. Deep learning architectures used in many fields such as brain images, gastroenterological images and chest x-rays support doctors in the detection of diseases. By using deep learning architectures, diseases can be detected more accurately and faster. With faster detection of diseases, treatment can be started more quickly. Early and accurate diagnosis of cytology images is also very important. After the cytology samples are taken from the patients in general health screenings, they should be interpreted by specialist doctors. The aim of this study is to detect benign and malignant cells from cytology images quickly and accurately. In this study, the Body Cavity Fluid Cytology Images dataset, which includes the data of a total of 21 patients with 14 malignant and 7 benign samples, was used. The dataset contains 693 images of 256x192 size. The images in the dataset are trained using the still popular ResNet50, GoogleNet and AlexNet classification architectures. The classification results obtained were compared with other studies using the same data set. As a result of the test processes, AlexNet architecture achieved 97.26%, GoogleNet architecture 98.12% and ResNet50 architecture 99.13% classification accuracy. The ResNet50 architecture with the best classification result achieved 99.25% specificity, 98.75% sensitivity and 99.13% accuracy. Training and testing in this study showed that the ResNet50 architecture classifies cytology images most successfully. © 2022 IEEE.Öğe A comparison of early primary realignment and delayed urethroplasty in the management of posterior urethral injuries in children(2000) Otçu S.; Kaya M.; Dokucu A.I.; Önen A.; Öztürk H.; Azal Ö.F.; Aydin G.Early or late treatment modialities may be instituted in urethral injuries related to trauma. Forty-six boys with urethral injuries that were treated were retrospectively analysed to review our results with early primary realignment and delayed urethroplasty. Thirty-six children were treated with early primary realignment while 10 had a delayed urethroplasty. Urethral strictures developed in 14 cases (39 %) of the realignment group and in 2 cases (12 %) of the urethroplasty patients. The primary realignment patients had a more unfavorable outcome when compared to the delayed repair group. We believe that delayed urethroplasty should be favored to early primary alignment in childhood posterior urethral injuries.Öğe The effect of lidocain infiltration applied pre or postoperatively on postoperative pain after inguinal hernia repair(2003) Önen A.; Kararmaz A.; Tosyali A.N.; Otiçu S.; Öztürk H.; Dokucu A.I.; Kaya M.Aim: To compare the effect of lidocain infiltration applied pre or postoperatively on postoperative pain after inguinal hernia repair. Method: Eighty-one children between 2 to 9 years of age who underwent inguinal hernia repair were reviewed prospectively. The patients were divided into three groups. Control group patients (n=20) underwent herniectomy alone. Five mg/kg lidocain 1% was infiltrated into the incision area 5 minutes before incision in preincisional group (n=35) and at the end of operation in postincisional (n=26) group. The severity of postoperative pain was evaluated by 4 staged pain scale. Results: Sixty-nine were boys and 12 were girls. Thirty-six had right-sided, 31 had left-sided, and 14 had bilateral inguinal hernia. The mean age was 3.6±1.9 years in control, 4.3±2.01 years in preincisional, and 3.3±1.6 years in postincisional group. The mean postoperative pain score was 0.65±0.75 in pre-incisional group, 0.80±0.87 in post-incisional group, and 1.7±0.78 in control group. While there was no significant difference between study groups, the postoperative pain score was significantly higher in control group compared to lidocain groups (p<0.001). The first analgesic demand time was 128.4±46.08 minutes in pre-incisional, 83.6±29.88 in post-incisional, and 27.2±14.9 in control group. The first analgesic demand time was significantly higher in pre-incisional group compared to others (p<0.001). Conclusion: Perioperative local infiltration of lidocain, which does not need additional equipment and experience, seems to be easy to perform, safe, and effective in decreasing postoperative pain after hernioplosty. In addition, the pre-incisional infiltration of lidocain allows more long postoperative painless period.Öğe Effects of different intravaginal progesterone releasing devices on estrous synchronization and LH surge in fat-tailed ewes during non-breeding season(2007) Gungor O.; Cenesiz M.; Pancarci S.M.; Yildiz S.; Kaya M.; Kacar C.; Ozyurtlu N.The aims of this study were to compare two methods of estrus synchronization and to evaluate the effectiveness of the PMSG treatment combined with P4 application. Fifty non-lactating seasonal anestrus fat-tailed ewes were randomly assigned into five groups. The controlled internal drug release devices (CIDR) were applied during day 14 in group I and in group II. Progesterone impregnated sponges were applied during day 14 in group III and in group IV. And then 500 IU PMSG was injected in group I and III i.m. intravaginal devices removed. Ewes in group V served as controls. There was no difference between the groups in the peak value of LH and LH surge. Although LH surge was seen in the control group's 5 sheep, none of the control ewes expressed estrus. Different progestagen treatments have no different results when they are evaluated in terms of the success of the estrus synchronization. PMSG application, after P4 treatment, increased the success of the synchronization.Öğe Gastric volvulus secondary to paraesophageal hiatal hernia in a child: A case report(2001) Öztürk H.; Kaya M.; Otçu S.; Dokucu A.I.Gastric volvidus within a paraesophageal hiatal hernia is rarely seen in childhood. We report a twenty month old boy with gastric volvulus secondary to paraesophageal hernia. The gastric fundus bulged into the right hemithorax through esophageal hiatus. The hernia was reduced by laparatomy and a Boix-Ochoa antireflux procedure was performed. Postoperative upper GI contrast study demonstrated resolution of GER and a normal positioned stomach. The patient is symptom free at 8 months follow-up.Öğe Ocular findings in patients with waardenburg syndrome(Duzce University Medical School, 2013) Önder H.I.; Tunç M.; Yüksel H.; Silan F.; Kaya M.Waardenburg Syndrome (WS) is a heterogenous group of auditory-pigmentary syndromes.WS is characterized by the association of pigmentation abnormalities, including depigmented patches of the skin and hair, vivid blue eyes or heterochromia irides, and sensorineural hearing loss. Hearing loss and other phenotypic expression is highly variable. WS can be seen with a frequency of 1/20000 - 1/42000 in different populations. © 2013 Düzce Medical Journal.Öğe A rare cause of acute abdomen in childhood: primary omental torsion(2002) Ozturk H.; Kaya M.; Otcu S.; Kilinc N.We examined the fact that 12 years old obese girl who applied to our clinic with acute abdomen symptoms and we determined primer omental torsion (POT) at laparotomy in this case. This disease is rare in childhood and imitates the signs of acute appendicitis. Obesity and anatomic variations ofthe omentum are predisposingfactorsfor POI ln this study we wanted to share our experiences in diagnosis and treatment ofPOIÖğe The value of micro-ELISA test in the diagnosis of Fasciola hepatica infection.(2013) Kaya M.; Beştaş R.; Çiçek M.; Önder A.; Kaplan M.A.In sero-diagnosis of parasitic infection, it is essential to inspect cross-reactivity between the target parasite and other parasites in order to assess diagnostic performance. The aim of this study was to determine the cut-off value of antibody titer for diagnosis of F. hepatica (FH) infection by using the micro-ELISA and diagnostic performance of this test. The study population consisted of the following groups: FH group (n=42), Echinococcus granulosus (EG) group (n=27) and control group (n=33). The micro-ELISA test for detection of anti-F. hepatica antibody was performed in all groups. The test was positive in all patients with FH, in 3 out of 27 (11%) patients with EG and in none of the control group. Mean antibody titer was significantly higher in the FH group compared to the EG group (23.8 ± 0.9 DU vs. 5.7 ± 1.2 DU; p < 0.001) and compared to the control group (23.8 ± 0.9 DU vs. 2.4 ± 0.2 DU; p < 0.001). When we used 11,5 DU as a cut-off value for sero-diagnosis of FH, the positive predictive value was 93.3%, negative predictive value was 100%, sensitivity was 100%, and specificity was 95%. Cross-reactions are an important issue in serological diagnosis of parasitic infections. The micro-ELISA test for FH antibody can not definitely discriminate fascioliasis from hydatid disease.
