Researcher:
Arş, Eda

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Doctor

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Eda

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Arş

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Arş, Eda

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2017 - 20193

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Researcher Of Publications: search.filters.isAuthorOfPublication.9c18425d-9519-4a65-8308-a86d62c3cc8e

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    Conventional vs invert-grayscale X-ray for diagnosis of pneumothorax in the emergency setting
    (W B Saunders Co-Elsevier Inc, 2017) Unek, Orkun; Eren, Hakan Sevki; N/A; Musalar, Ekrem; Ekinci, Salih; Arş, Eda; Gürses, Bengi; Aktaş, Can; Doctor; Doctor; Doctor; Faculty Member; Faculty Member; N/A; N/A; N/A; School of Medicine; School of Medicine; Koç University Hospital; Koç University Hospital; Koç University Hospital; N/A; N/A; N/A; N/A; N/A; 113169; 24297
    Introduction: Pneumothorax is a pathologic condition in which air is accumulated between the visceral and parietal pleura. After clinical suspicion, in order to diagnose the severity of the condition, imaging is necessary. By using the help of Picture Archiving and Communication Systems (PACS) direct conventional X-rays are converted to gray-scale and this has become a preferred method among many physicians. Methods: Our study design was a case-control study with cross-over design study. Posterior-anterior chest Xrays of patients were evaluated for pneumothorax by 10 expert physicians with at least 3 years of experience and who have used inverted gray-scale posterior anterior chest X-ray for diagnosing pneumothorax. Results: The study included posterior anterior chest X-ray images of 268 patients of which 106 were diagnosed with spontaneous pneumothorax and 162 patients used as a control group. The sensitivity of Digital-conventional X-rays was found to be higher than that of inverted gray-scale images (95% CI (2,08-5,04), p < 0,01). There was no statistically significant difference between the gold standard and digital-conventional images (95% CI (0,45-2,17), p = 0,20), while the evaluations of the gray-scale images were found to be less sensitive for diagnosis (95% CI (3,16-5,67) p < 0,01). Conclusion: Inverted gray-scale imaging is not a superior imaging modality over digital-conventional X-ray for the diagnosis of pneumothorax. Prospective studies should be performed where diagnostic potency of inverted gray-scale radiograms is tested against gold standard chest CT. Further research should compare inverted gray-scale to lung ultrasound to assess them as alternatives prior to CT.
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    Valsalva maneuver techniques for supraventricular tachycardias: Which and how?
    (Sage Publications Ltd, 2017) N/A; N/A; Ekinci, Salih; Karadana, Gökçe Akgül; Arş, Eda; Musalar, Ekrem; Aktaş, Can; Doctor; Doctor; Doctor; Doctor; Doctor; Faculty Member; N/A; N/A; N/A, N/A; N/A; School of Medicine; Koç University Hospital; Koç University Hospital; Koç University Hospital; Koç University Hospital; Koç University Hospital; Koç University Hospital; N/A; N/A; N/A; N/A; N/A; 24297
    Study objective: While some research has been done on Valsalva maneuvers in treating supraventricular tachycardia, there is no standardized algorithm on which technique has been the most effective for the termination of supraventricular tachycardias. In this study, we compare different Valsalva maneuver techniques in order to determine the exact technique needed for maximal vagal response. Methods: This was a repeated measures clinical study, which enlisted a sample of healthy adult volunteers. Participants performed four different Valsalva maneuver techniques (40 mm Hg10 s, 40 mm Hg15 s, 50 mm Hg10 s, and 50 mm Hg15 s) while lying in a supine position. The maneuvers were repeated three times. An electrocardiography printout was obtained during each trial, and heart rate differences between pre-maneuver and post-maneuver were measured. Results: Among the 97 volunteers who participated in the study, 7 were excluded because the target Valsalva maneuver pressures were not reached, and 1 volunteer was excluded due to T-wave inversion that developed after Valsalva maneuver. We enrolled 89 participants. There was no significant difference in the heart rate decrease among the four techniques. In addition, there was no difference between the vagal responses in terms of age, gender, and body mass index. Conclusion: This study shows that the four different Valsalva maneuver techniques were not superior to one another in terms of decreased heart rate.
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    Transverse process fractures: a clinical series and coronal injury of the spine
    (Elsevier, 2019) Gultekin, Guliz D.; Gulmen, Vehbi; Dilbaz, Suna; Zileli, Mehmet; N/A; Arş, Eda; Doctor; N/A; Koç University Hospital; N/A
    Background: Transverse process fractures in trauma patients frequently are diagnosed using computed tomography and result in severe pain and limitation of motion. However, there is no accepted standard of care. Thus, these fractures can be treated with excessive measures or inadequately treated. In this study, diagnosis and treatment of transverse process fractures are examined. Methods: The mechanisms of trauma, findings, and associated organ injuries of 50 patients with transverse process fractures and no other spinal injuries treated between 2013 and 2015 were recorded. The same treatment protocol was applied to each patient. The results of the treatments were examined retrospectively and recorded. Results: Deformation and edema of the fascia and muscles around the transverse process fractures were detected by computed tomography and magnetic resonance imaging. The average pain intensity of the patients before treatment was 8.8 of 10 on a visual analog scale and 5.2 of 10 after treatment with nonsteroidal anti-inflammatory drugs, muscle relaxants, flexible support corsets, and mobilization. Patients hospitalized for additional pathologies were primarily treated in thoracic surgery wards (11 of 15 patients). Transverse process fractures were caused by backward falls or blows to the back in 49 patients. Conclusions: Transverse process fractures can be treated quickly and effectively with the recommended protocol after excluding any accompanying organ injuries or other spinal injuries. Transverse process fractures most often occur during backward falls or blows to the back, commonly low-energy injuries. This trauma mechanism can be described as a "coronal injury of the spine."