Browsing by Author "Goya, C."

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Can Computerized Tomography Hounsfield Unit Values Be Useful in the Differential Diagnosis of Pleural Effusion
(Tabriz University of Medical Sciences, 2020) Durmaz, F.; Ozgokce, M.; Ayyildiz, V.A.; Cilingir, B.M.; Goya, C.
Introduction: We aimed to investigate the efficacy of Hounsfield unit (HU) attenuation measured on computed tomography (CT) as a non-invasive method for pleural effusion characterization. Methods: Patients with pleural effusion who underwent thoracic CT imaging and thoracentesis within a maximum of three days were included in this retrospective study (15 transudate and 36 exudate). By drawing a circular region of interest (ROI) on the section with the thickest pleural effusion in terms of anteroposterior diameter in the upper-medial-lower zone on axial images, a total of three HU values, one from each level, were averaged. An independent t-test was applied to the CT attenuation (HU) values for the transudate-exudate differentiation. A receiver operating characteristic (ROC) analysis was then made. Results: The mean attenuation±standard deviation (minimum-maximum) value for the patients with transudate was 2.17±3.76 ((-7.5)-7.5) HU, whereas the mean HU value for the patients with exudate was 8.38±6.2 ((-6)-22). The independent t test made for the transudate-exudate differentiation revealed a statistically significant difference (P=0.001). In the ROC analysis carried out to determine the cut-off value of the attenuation value of pleural effusion in the transudate-exudate differentiation, the area under the curve was found to be 82.8%. When the cut-off value was taken as 2.75HU for the area under the curve, sensitivity was found to be 84%, and specificity was 60%. Conclusion: Although CT-HU values are statistically significant in the differential diagnosis of transudate-exudate, there is still a need to establish a correlation with other tomographic findings and clinical laboratory findings. © 2020 The Author(s).
Carotid Intima-Media Thickness and Lipid Profile in Children Patients With Hypothyroidism
(Yuzuncu Yil Universitesi Tip Fakultesi, 2022) Çetin, M.; Eren, A.; Bitkin, E.Ç.; Yürektürk, E.; Goya, C.; Karaman, K.
Hypothyroidism is a condition where there is a decrease or absence of thyroid hormone production as a result of a disorder occurring anywhere in the hypothalamo-pituitary-thyroid axis. There are very few studies in the literature reporting on the effect of hypothyroidism on lipid metabolism and carotid intima-media thickness (CIMT) in children. The present study was designed to determine whether hypothyroidism is associated with an increase in the CIMT and lipid levels in patients under thyroid hormone replacement therapy. The study included 30 children (under thyroid hormone replacement therapy) diagnosed with hypothyroidi and a control group comprising 30 healthy, euthyroid children. All the patients were examined for clinical characteristics, and the serum lipid levels and the CIMT were measured. Mean age was 8.47 ± 5.22 years in the patient group and 8.82 ± 4.91 years in the control group. Patient group TSH value was significantly higher than control group (9.95 ± 18.43, 1.93 ± 1.04, p = 0.021, respectively). The t otal cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and TG values were similar in both group (p = 0.065, p = 0.429, p = 0.219, and 0.391, respectively). CIMT values of the patient and control groups did not differ significantly ( 0.40 ± 0.08 and 0.39 ± 0.07, p = 0.920, respectively) In this study, contrary to the rare studies in the children's age group in the literature, no significant changes in lipid pr ofile and CIMT were detected in patients with hypothyroidism. Further prospective studies are needed to substantiate these findings in children with hypothyroidism. © 2022, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Concurrence of Prenatally Diagnosed Cantrell Pentalogy and Short and Tight Umbilical Cord: a Possible Case of Hexalogy
(Yuzuncu Yil Universitesi Tip Fakultesi, 2016) Batur, A.; Goya, C.; Yavuz, A.; Hamidi, C.; Cetincakmak, M.G.
Cantrell pentalogy is a rather rare syndrome characterised by complete or partial ectopia cordis; together with omphalocele, congenital heart diseases, and defects in the pericardium, lower sternum and anterior diaphragm. In this article, our aim is to present the ultrasonographic evidence of the concurrence of a short umbilical cord and the Cantrell syndrome, which we believe will contribute to the literature. © 2016 Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Is There Correlation Between Flow Volume and Kt/V Ratio in Upper Arm Arteriovenous Fistula in Patients End Stage Renal Failure
(Tabriz University of Medical Sciences, 2023) Turko, E.; Gunduz, A.M.; Gurbuz, A.F.; Durmaz, F.; Dundar, I.; Goya, C.; Yokus, A.
Introduction: Chronic kidney disease is irreversible and may result in end-stage renal failure (ESRF). The kidney replacement program is determined by calculating Kt/V ratios, one of the dialysis efficiency indicators in treatment planning in routine dialysis applications in ESRF patients. We aimed to investigate whether there is a correlation between flow rate and Kt/V ratio. Methods: All patients were evaluated by B-mode ultrasonography (US) and color doppler ultrasonography (CDUS). The anastomosis line diameter was measured in the B-mode US. The fistula flow rate was calculated in a spectral examination at the anatomical location where the fistulized flow was best obtained at the anastomosis level. Patients with a fistula flow rate above 300 mL/min in CDUS examinations were considered reasonable flow rates. The fistula flow rate in these patients was compared with the Kt/V ratios. Spearman’s rank correlation coefficient was calculated since the normal distribution condition was not met to determine the relationship between variables. Results: The results of this study showed a high level (r=0.72, P=0.001) of positive and statistically significant correlation between flow rate and Kt/V ratio in upper arm arteriovenous fistula in patients with end stage renal failure. Conclusion: We found a highly positive and statistically significant correlation between fistula flow rate and Kt/V ratio. Low Kt/V ratios have different causes. Low fistula flow should be considered first in low Kt/V values. © 2023 The Author(s).