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Dive into the research topics where Nurettin Özgür Doğan is active.

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Featured researches published by Nurettin Özgür Doğan.


Academic Emergency Medicine | 2015

Comparison of the Glasgow-Blatchford and AIMS65 Scoring Systems for Risk Stratification in Upper Gastrointestinal Bleeding in the Emergency Department

Elif Yaka; Serkan Yılmaz; Nurettin Özgür Doğan; Murat Pekdemir

OBJECTIVES The aim of this study was to compare the performance of the Glasgow-Blatchford and the AIMS65 scoring systems as early risk assessment tools for accurately identifying patients with upper gastrointestinal (GI) bleeding who are at a low risk of requiring clinical interventions, including emergency endoscopy. The secondary objective was to compare their performance regarding relevant clinical outcomes. METHODS Data were collected prospectively over a 2-year period in the emergency department of a university hospital. Adult patients with upper GI bleeding from either variceal or nonvariceal sources were included. Composite clinical outcomes consisted of a need for surgical or endoscopic intervention, rebleeding, intensive care unit admission, or in-hospital mortality. Patients who required blood transfusions or suffered composite clinical outcomes were considered high-risk patients. Glasgow-Blatchford score (GBS) and AIMS65 score were calculated for each patient. The sensitivity and specificity of the scoring systems were calculated. The areas under the receiver-operating characteristic curve (AUC) of the scores were compared. RESULTS There were 254 patients in the study, of whom 163 (64.2%) were men. The median age was 61 years (interquartile range = 45 to 72 years). Among the patients, 211 (83.1%) underwent endoscopy, of whom 49 (19.3%) required endoscopic intervention to achieve hemostasis. Five (2%) patients required surgical intervention. Rebleeding was observed in 33 (13%) patients. A total of 143 (56.3%) patients received blood transfusions. A total of 152 (59.8%) were defined as high risk. Eighty-one (31.9%) experienced at least one component of the composite clinical outcomes, 18 (7.1%) of whom suffered in-hospital mortality. A GBS of 0 was observed in 16 patients (6.3%) in the study group. Two of these were high-risk patients. A total of 101 (39.8%) patients had AIMS65 scores of 0. Thirty-four of these were high-risk patients. A GBS of 0 had higher sensitivity than an AIMS65 score of 0 (98.68% vs. 77.6%). The negative predictive values of the GBS and AIMS65 of 0 were 87.5 and 66.3%, respectively. The GBS and AIMS65 were similar with regard to the composite outcome prediction, with AUCs of 0.795 (95% confidence interval [CI] = 0.74 to 0.843) and 0.746 (95% CI = 0.688 to 0.798), respectively (p = 0.137). The scores were also similar with respect to predicting in-hospital mortality (AUCs of 0.85 vs. 0.81; p = 0.342). The GBS was superior to the AIMS65 in identifying high-risk patients, with AUCs of 0.896 (95% CI = 0.85 to 0.93) and 0.771 (95% CI = 0.714 to 0.821; p < 0.001), respectively. The GBS was also more accurate than the AIM65 in predicting the need for blood transfusions (AUCs of 0.904 vs. 0.796; p < 0.001) and interventions (AUCs of 0.727 vs. 0.647; p = 0.05). CONCLUSIONS These results suggest that the GBS has superior sensitivity relative to the AIMS65 in identifying patients who were not likely to require interventions, including emergency endoscopy. Additional work to determine the use in real-time decision making may be warranted and helpful in providing guidance to clinicians.


American Journal of Emergency Medicine | 2013

Evaluation of geriatric patients with trauma scores after motor vehicle trauma

Yunsur Cevik; Nurettin Özgür Doğan; Murat Daş; Onur Karakayalı; Orhan Delice; Cemil Kavalci

INTRODUCTION The aim of this study was to investigate the factors affecting in-hospital mortality among geriatric trauma patients who presented to the emergency department (ED) following a motor vehicle collision. METHODS A retrospective cohort study was carried out in a high-volume tertiary care facility in the central Anatolian Region. Clinical data were extracted from hospital databases for all eligible geriatric patients (either driver, passenger or pedestrian) with entries dated between January 1, 2007, and December 31, 2009. Multivariate logistic regression analysis was used to assess the in-hospital mortality effects of variables including demographic characteristics, trauma mechanisms, injured body parts and various trauma scores. RESULTS There were 395 geriatric motor vehicle trauma presentations to the ED during the 3-year period. Of these patients, 371 (93.9%) survived, and 24 (6.1%) died in the ED, operating room or intensive care unit. The multivariate logistic regression model included the following variables: heart failure, cranial trauma, abdominal trauma, thoracic trauma, pelvic trauma, Glasgow Coma Score and Injury Severity Score (ISS). These variables were chosen because univariate analysis indicated that they were potential predictors of mortality. The multivariate logistic regression showed that the presence of heart failure (OR: 20.2), cranial trauma (OR: 3.6), abdominal trauma (OR: 26.9), pelvic trauma (OR: 9.9) and ISS (OR: 1.2) were predictors of in-hospital mortality in the study population. CONCLUSION In our study, heart failure, cranial trauma, abdominal trauma, pelvic trauma, and ISS were found to be the most important predictors of in-hospital mortality among geriatric motor vehicle trauma patients.


American Journal of Emergency Medicine | 2014

The accuracy of mainstream end-tidal carbon dioxide levels to predict the severity of chronic obstructive pulmonary disease exacerbations presented to the ED.

Nurettin Özgür Doğan; Alp Şener; Gul Pamukcu Gunaydin; Ferhat İçme; Gülhan Kurtoğlu Çelik; Havva Şahin Kavaklı; Tugba Atmaca Temrel

INTRODUCTION The end-tidal carbon dioxide (ETCO2) measurement was considered as an essential tool for the assessment of several conditions in emergency medicine. However, the diagnostic role of capnography in dyspneic patients still remains unclear. We aimed to analyze the alteration of the ETCO2 levels in chronic obstructive pulmonary disease (COPD) exacerbations and its role in the decision-making process. METHODS All the individuals who were presented to the emergency department (ED) after COPD exacerbations were prospectively enrolled in the study. The patients were excluded if they refused to give informed consent, intubated after initial assessment, and had uncertain COPD diagnosis. The ETCO2 measurement using a mainstream capnometer was undertaken in the pretreatment and post-treatment period of COPD exacerbations. RESULTS A total of 102 patients were enrolled in the study. Pre-ETCO2 and post-ETCO2 levels were positively correlated with arterial partial carbon dioxide pressure levels (r=0.756, P<.001 and r=0.629, P<.001, respectively). The median pre-ETCO2 level was 32.0 (30.5-40.5) in discharged patients and 39.0 (31.0-53.5) in admitted patients. After the initial therapy in the ED was completed, the median post-ETCO2 level was found to be 32.0 (28.0-37.5) in discharged patients and 36.0 (32.0-52.0) in admitted patients. Although a statistically significant difference was observed in the pretreatment period (P=.043), no difference was observed in post-treatment period between ETCO2 levels (P=.107). CONCLUSION End-tidal carbon dioxide levels were higher in admitted patients when compared with discharged patients on arrival to the ED. ETCO2 measurement has very little contributions while evaluating patients with COPD exacerbation in the ED.


Injury-international Journal of The Care of The Injured | 2015

The significance of routine thoracic computed tomography in patients with blunt chest trauma

Seref Kerem Corbacioglu; Erhan Er; Sahin Aslan; Meltem Seviner; Gökhan Aksel; Nurettin Özgür Doğan; Sertaç Güler; Aysen Bitir

PURPOSE The purpose of this study is to investigate whether the use of thoracic computed tomography (TCT) as part of nonselective computed tomography (CT) guidelines is superior to selective CT during the diagnosis of blunt chest trauma. SUBJECTS AND METHODS This study was planned as a prospective cohort study, and it was conducted at the emergency department between 2013 and 2014. A total of 260 adult patients who did not meet the exclusion criteria were enrolled in the study. All patients were evaluated by an emergency physician, and their primary surveys were completed based on the Advanced Trauma Life Support (ATLS) principles. Based on the initial findings and ATLS recommendations, patients in whom thoracic CT was indicated were determined (selective CT group). Routine CTs were then performed on all patients. RESULTS Thoracic injuries were found in 97 (37.3%) patients following routine TCT. In 53 (20%) patients, thoracic injuries were found by selective CT. Routine TCT was able to detect chest injury in 44 (16%) patients for whom selective TCT would not otherwise be ordered based on the EP evaluation (nonselective TCT group). Five (2%) patients in this nonselective TCT group required tube thoracostomy, while there was no additional treatment provided for thoracic injuries in the remaining 39 (15%). CONCLUSION In conclusion, we found that the nonselective TCT method was superior to the selective TCT method in detecting thoracic injuries in patients with blunt trauma. Furthermore, we were able to demonstrate that the nonselective TCT method can change the course of patient management albeit at low rates.


Academic Emergency Medicine | 2014

Comparison of Short‐term Infusion Regimens of N‐Acetylcysteine Plus Intravenous Fluids, Sodium Bicarbonate Plus Intravenous Fluids, and Intravenous Fluids Alone for Prevention of Contrast‐induced Nephropathy in the Emergency Department

Ahmet Kama; Serkan Yılmaz; Elif Yaka; Erkan Dervisoglu; Nurettin Özgür Doğan; Emre Erimşah; Murat Pekdemir

BACKGROUND There is no evidence regarding the several short-term prophylaxis protocols for contrast-induced nephropathy (CIN) that may be most feasibly convenient in emergency settings. OBJECTIVES The purpose of this study was to compare the efficacies of short-term CIN prophylaxis protocols of normal saline, N-acetylcysteine (NAC) plus saline, and sodium bicarbonate plus saline in emergency department (ED) patients at moderate or high risk of CIN after receiving intravenous (IV) contrast agent. METHODS This single-center, randomized, nonblinded clinical trial was conducted in the ED with adult patients requiring contrast-enhanced computed tomography (CT). Patients with moderate to high risk of CIN according to the Mehran risk score, who consented to participate, were eligible. Patients with continuous renal replacement therapy or who reported contrast allergy were excluded. Enrolled patients were randomly assigned to receive 150 mg/kg NAC in 1000 mL of 0.9% sodium chloride (NaCl), 150 mEq of sodium bicarbonate in 1000 mL of 0.9% NaCl, or 1000 mL of IV saline infusion, all given at 350 mL/hr for 3 hours. All of the patients were administered less than 100 mL of nonionic, low-osmolality contrast agent. The primary outcome of CIN was defined as a 25% increase or a greater than 0.5 mg/dL increase in the serum creatinine level 48 to 72 hours later compared with the baseline measurement. RESULTS A total of 107 patients were randomized to NAC (n = 36), sodium bicarbonate (n = 36), and saline prophylaxis (n = 35). The mean age of the patients was 71 years (95% confidence interval [CI] = 65 to 77 years), and 58 (54.2%) were male. The groups were similar regarding baseline characteristics and nephropathy risks. Of the 16 (14.9%) patients who eventually developed CIN, seven (19.4%) were in the NAC plus saline group, four (11.1%) were in the sodium bicarbonate plus saline group, and five (14.2%) were in the saline group. There were no significant differences between the groups in terms of the prevention of CIN (p = 0.60). CONCLUSIONS None of the short-term protocols with normal saline, NAC, or sodium bicarbonate was superior in ED patients requiring contrast-enhanced CT who had a moderate or high risk of CIN.


Human & Experimental Toxicology | 2015

A randomized trial comparing intravenous paracetamol, topical lidocaine, and ice application for treatment of pain associated with scorpion stings.

G Aksel; S Güler; Nurettin Özgür Doğan; Şk Çorbacioğlu

Objective: Appropriate treatment for scorpion-associated pain was not previously studied in detail in the literature. The aim of this study was to compare the efficacy of three treatment modalities in patients with painful scorpion stings using visual analog scale (VAS) scores. Materials and Methods: A randomized study was carried out during a 1-year period in patients with scorpion stings who did not have any systemic signs or symptoms. Patients were treated with intravenous paracetamol, topical lidocaine, or ice application. Pain intensity was evaluated using VAS score at the time of presentation to emergency department and at 30th, 60th, 120th, and 240th minutes. Changes in VAS scores from baseline were recorded. Results: A total of 130 patients were included in the statistical analysis. Significant reduction in pain intensity was observed with topical lidocaine group when compared with the ice application group (p < 0.001) and paracetamol group (p < 0.001) in all selected time intervals. The median reduction in scores at 30 min after therapeutic intervention was 25.0 mm for topical lidocaine, 14.5 mm for ice application, and 10.0 mm for intravenous paracetamol. No adverse events were reported. Discussion: Our results revealed that topical lidocaine is superior to both intravenous paracetamol and local ice application and its effect lasts several hours after envenomation. conclusion: Topical lidocaine is an effective and safe treatment in scorpion sting associated with pain in patients with nonsystemic signs and symptoms.


Human & Experimental Toxicology | 2015

Can initial lactate levels predict the severity of unintentional carbon monoxide poisoning

Nurettin Özgür Doğan; A Savrun; S Levent; Gp Günaydın; Gk Çelik; H Akküçük; Y Çevik

Introduction: Accidental carbon monoxide (CO) intoxication is a major cause of unintentional poisoning. This study aimed to determine the value of initial lactate levels in patients with CO poisoning and to evaluate its utilization in the emergency department (ED). Methods: A retrospective cross-sectional study was carried out among patients with CO intoxication, who were admitted to the ED between April 1, 2011 and April 1, 2012. The study data were extracted from a hospital database system using International Classification of Diseases-10 diagnosis codes. The patients were analyzed according to lactate levels, carboxyhemoglobin (COHb) levels, electrocardiographic manifestations, and clinical features at admission to the ED. Results: A total of 74 patients with CO poisoning were enrolled in this study. The average COHb value of the patients was 21.5 ± 13.9%. A total of 50 patients (67.6%) received normobaric oxygen treatment and 24 patients (32.4%) received hyperbaric oxygen (HBO) treatment. The patients who received HBO treatment had increased lactate levels compared with patients receiving normobaric oxygen treatment (2.3 mmol/L vs. 1.0 mmol/L, p < 0.001). The lactate levels were positively correlated with COHb values (r = 0.738, p < 0.001). We determined that a lactate level of 1.85 mmol/L has a sensitivity of 70.8% and a specificity of 78.0% to predict the HBO treatment needed in CO poisoning. Conclusion: In evaluating patients with CO poisoning, an initial lactate level could be taken into consideration as an adjunctive parameter of severity, together with the clinical criteria and levels of COHb.


Annals of Emergency Medicine | 2017

Intranasal Lidocaine in Acute Treatment of Migraine: A Randomized Controlled Trial

Nazire Avcu; Nurettin Özgür Doğan; Murat Pekdemir; Elif Yaka; Serkan Yılmaz; Cansu Alyeşil; Latif Erdem Akalın

Study objective: The study aims to evaluate the efficacy and safety of intranasal lidocaine administration for migraine treatment. Methods: This single‐center, double‐blind, randomized, controlled trial was conducted in a tertiary care emergency department. Included patients met the migraine criteria of the International Headache Society. Patients were randomized to intranasal lidocaine or saline solution; all participants received 10 mg of intravenous metoclopramide. Patient pain intensity was assessed with an 11‐point numeric rating scale score. The primary outcome measure was the change in pain scores at 15 minutes; secondary outcomes were changes in pain intensity after pain onset and need for rescue medication. Results: Patients (n=162) were randomized into 2 groups with similar baseline migraine characteristics and numeric rating scale scores. The median reduction in numeric rating scale score at 15 minutes was 3 (interquartile range [IQR] 2 to 5) for the lidocaine group and 2 (IQR 1 to 4) for the saline solution group (median difference=1.0; 95% confidence interval 0.1 to 2.1). The reduction in pain score at 30 minutes was 4 (IQR 3 to 7) for the lidocaine group and 5 (IQR 2 to 7) for the saline solution group (median difference=1.0; 95% confidence interval 0.1 to 2.1). Need for rescue medication did not differ between the groups, and local irritation was the most common adverse event in the lidocaine group. Conclusion: Although intranasal lidocaine was found no more efficacious than normal saline solution in our study, future studies should focus on patients who present earlier after headache onset.


American Journal of Emergency Medicine | 2017

Comparison of loop and primary incision & drainage techniques in adult patients with cutaneous abscess: A preliminary, randomized clinical trial

İbrahim Ulaş Özturan; Nurettin Özgür Doğan; Onur Karakayalı; Asım Enes Özbek; Serkan Yılmaz; Murat Pekdemir; Selim Suner

Objectives The aim of this study is to compare efficacy of loop drainage and standard incision & drainage (I&D) in adult patients with cutaneous abscess in the emergency department. Methods This study is an interventional, parallel group, randomized clinical trial. Adult patients with cutaneous abscess were randomized into loop drainage and standard I&D groups. The primary outcome was defined as change in diameter of abscess and cellulitis 7 days after procedure. Secondary outcome measures were pain intensity at the end of the procedure and procedure duration. Also patient satisfaction, need for antibiotics and repetitive drainage were recorded. Results A total of 46 patients were included in the study (23 in each group). Both groups had similar baseline characteristics. Median abscess diameters were 3.2 (1.9–4.0) cm and 3.0 (2.4–4.8) cm in loop drainage and I&D groups respectively. In the loop drainage group there was a − 0.6 cm (95% CI: − 1.7–0.5) difference in abscess diameter compared to the I&D group. There was also a reduction in cellulitis diameter (− 1.3 cm, 95% CI: − 3.4–0.8). No statistically significant difference was found between groups in patient satisfaction, use of antibiotics or need for repetitive drainage. Conclusion This preliminary study revealed that, loop drainage technique is similar to standard I&D technique in abscess resolution and complications. (Clinical Trials Registration ID: NCT02286479)


Turkish journal of emergency medicine | 2016

Social media, FOAMed in medical education and knowledge sharing: Local experiences with international perspective

Arif Alper Cevik; Gökhan Aksel; Haldun Akoglu; Serkan Emre Eroglu; Nurettin Özgür Doğan; Yusuf Ali Altunci

Social media, through the Internet and other web-based technologies, have become a means of communication and knowledge-sharing. In this article, we provide details about the social media traffic of various scientific activities, the organizations of which we have played an active role in. We also provide information in our native language through our FOAMed website, which has been published for about 30 months, with us acting as editors. We are comparing these local and limited ventures with examples from the world and aim to remind that social media sources play a very important role in sharing knowledge in medical training and encouraging local initiatives, like ours, with limited resources.

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Gülhan Kurtoğlu Çelik

Yıldırım Beyazıt University

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