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Dive into the research topics where Ahmet Örnek is active.

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Featured researches published by Ahmet Örnek.


Jcr-journal of Clinical Rheumatology | 2013

Disease severity in adult patients of Turkish ancestry with familial mediterranean fever living in Germany or Turkey. Does the country of residence affect the course of the disease

Arnd Giese; Ahmet Örnek; L. Kilic; Mustafa Kurucay; Süleyman Nahit Şendur; Elke Lainka; Bernhard F. Henning

BackgroundThe environment may affect the course of familial Mediterranean fever (FMF). ObjectiveThe objective of this study was to compare disease severity between adult FMF patients in Turkey (TR) and Germany (G). MethodsAdult FMF patients of Turkish ancestry on colchicine living in Turkey (n = 40) or G (n = 35) were compared. Disease severity, C-reactive protein (CRP), and erythrocyte sedimentation rate were assessed. ResultsGroups differed significantly in the following aspects: age at onset of disease (TR: 15.6, G: 10.8 years; P = 0.02), delay between onset and initiation of colchicine treatment (TR: 6.8 years, G: 14.9 years; P < 0.001), female gender (TR: 80%, G: 57.1%; P = 0.04), and duration of disease (TR: 14.4 years, G: 23.4 years; P < 0.001). There was no significant difference in colchicine treatment concerning average dosing and duration of therapy. No significant difference could be found between the 2 groups in CRP and disease severity as assessed by the score of Pras et al. (Am J Med Genet. 1998;75:216–219) even after adjusting for potential confounding variables. Mean erythrocyte sedimentation rate was significantly higher among patients living in G (TR: 13.2 mm/first hour, G: 26.3 mm/first hour; P < 0.001). Among patients living in Germany, there was a significant difference in age at FMF onset depending on their country of birth (born in TR: 14.9 years, born in G: 6.9 years; P = 0.0001). ConclusionsIn adult FMF patients living in Turkey or Germany, no difference in disease activity or CRP could be found. German patients were younger at onset of disease and had a longer delay between onset and initiation of colchicine treatment.


International Journal of Medical Sciences | 2016

Clinical and Subclinical Femoral Vascular Complications after Deployment of two Different Vascular Closure Devices or Manual Compression in the Setting of Coronary Intervention

H. Yeni; Meissner Axel; Ahmet Örnek; Thomas Butz; Petra Maagh; Gunnar Plehn

Background: In the past two decades vascular closure devices (VCD) have been increasingly utilized as an alternative to manual compression after percutaneous femoral artery access. However, there is a lack of data confirming a significant reduction of vascular complication in a routine interventional setting. Systematic assessment of puncture sites with ultrasound was hardly performed. Methods: 620 consecutive patients undergoing elective or urgent percutaneous coronary intervention were randomly allocated to either Angioseal (AS; n = 210), or Starclose (SC; n = 196) or manual compression (MC; n = 214). As an adjunct to clinical evaluation vascular ultrasonography was used to assess the safety of each hemostatic method in terms of major and minor vascular complications. The efficacy of VCDs was assessed by achievement of puncture site hemostasis. Results: No major complications needing transfusion or vascular surgery were observed. Furthermore, the overall incidence of clinical and subclinical minor complications was similar among the three groups. There was no differences in the occurrence of pseudoaneurysmata (AS = 10; SC = 6; MC = 10), arteriovenous fistula (AS = 1; SC = 4; MC = 2) and large hematoma (AS = 11; SC = 10; MC = 14). The choice of access site treatment had no impact in the duration of hospital stay (AS = 6.7; SC = 7.4; MS = 6.4 days). Conclusions: In the setting of routine coronary intervention AS and SC provide a similar efficacy and safety as manual compression. Subclinical vascular injuries are rare and not related to VCD use.


Journal of Vascular Access | 2015

Transradial versus transfemoral approach in coronary angiography: a matched pair analysis of cath lab equipment costs.

Gunnar Plehn; Ahmet Örnek; Georgios Gkiouras; Julia Vormbrock; Petra Maagh; Thomas Butz; Axel Meissner

Introduction There is an ongoing struggle to understand the potential economic benefits that radial access may offer. Cost savings are thought to primarily occur after the procedure. The aim of our study was to analyze cath lab expenses resulting from transradial (TRA) and transfemoral approaches (TFA). Methods A total of n = 1890 matched pairs of patients were analyzed. A traditional Judkins catheter strategy was pursued for coronary angiography. Three large databases were merged to collect and compare procedural data as material, medication costs and fluoroscopy time. Results Compared to TFA diagnostic catheterization from TRA was associated with significantly lower procedural costs (€181.0 versus €167.5; p<0.001). Extra costs in TFA were primarily produced by frequent use of vascular closure devices (VCDs) in 86% of patients. However, the potential saving amount related to VCD use was only partly realized due to the higher number of extra catheters (0.53 ± 0.9 versus 0.23 ± 0.6; p<0.001) and hydrophilic guidewires (0.088 ± 0.3 versus 0.014 ± 0.1; p<0.001) used in TRA. Weak correlations were observed between the total number of cases and fluoroscopy time (r = −0.13; p<0.001) as well as material costs (r = 0.31; p<0.001). Conclusions Significant cost savings can be realized by TRA at the procedural level even when adhering to a conventional Judkins catheter strategy. Hydrophilic guidewires and additional catheters are the main cost drivers in TRA. In contrast to fluoroscopy time material costs steadily increase during the early stage of the TRA learning curve.


International Journal of Rheumatic Diseases | 2017

Anxiety and depression in adult patients with familial Mediterranean fever: a study comparing patients living in Germany and Turkey

Arnd Giese; Ahmet Örnek; L. Kilic; Mustafa Kurucay; Süleyman Nahit Şendur; Elke Lainka; Bernhard F. Henning

To determine the prevalence of anxiety and depression among patients with familial Mediterranean fever (FMF) living in Germany or Turkey a prospective study was conducted.


International Journal of Medical Sciences | 2014

P wave dispersion and QT dispersion in adult Turkish migrants with familial mediterranean fever living in Germany.

Arnd Giese; Ahmet Örnek; Mustafa Kurucay; Kaffer Kara; Helmut Wittkowski; Faekah Gohar; Bjoern A. Menge; Wolfgang Schmidt; Christoph Zeidler

Background: Familial Mediterranean Fever (FMF) is a hereditary autoinflammatory disease associated with subclinical inflammation, which includes atherosclerosis arising from endothelial inflammation, which in turn increases the risk of atrial or ventricular arrhythmias. Conduction abnormalities can be detected using the electrocardiographic (ECG) indices P and QT dispersion (Pdisp and QTdisp). Currently, it is unknown whether patients with FMF are more likely to have abnormalities of these ECG indices. Moreover, existing studies were conducted in countries with higher FMF prevalence. We therefore perform the first prospective study assessing Pdisp and QTdisp in adult FMF patients in Germany, where prevalence of FMF is low. Method: Asymptomatic FMF patients (n=30) of Turkish ancestry living in Germany and age-matched healthy controls (n=37) were prospectively assessed using 12-lead ECG. Results: Patients and controls were comparable in gender and body mass index, and patients had higher erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and serum amyloid A (SAA) compared to controls (ESR: 23.7±14.3 vs. 16.1±13,3 mm/1sth, p=0.03, CRP: 0.73±0.9 vs. 0.26±0.4 g/dl, p=0.01, SAA: 3.14±4,8 vs. 0.37±0.3 mg/dl, p<0.01). No statistically significant difference between patients and controls respectively, for Pdisp (43.7±11.9 vs. 47.1±11.2ms, p=0.23), QTdisp (65.9±12.3 vs. 67.6±12.7 ms, p=0.58) or corrected QTdisp (cQTdisp: 73.9±15.0 vs. 76.0±13.3 ms, p=0.55) was found. No correlation could be found between Pdisp or QTdisp or cQTdisp and any of the biochemical markers of inflammation. Conclusion: FMF patients living in Germany show a Pdisp and QTdisp comparable to healthy controls, with no increased risk of atrial or ventricular arrhythmias indicated.


Schmerz | 2013

[Self-medication to treat pain in attacks of familial Mediterranean fever: aiming to find a new approach to pain management].

Arnd Giese; Ahmet Örnek; Mustafa Kurucay; L. Kilic; Süleyman Nahit Şendur; A. Münker; C. Puchstein; E. Lainka; H. Wittkowski; Bernhard F. Henning

BACKGROUND Familial Mediterranean fever (FMF) is an autoinflammatory disease characterized by bouts of fever and serositis. Morbidity caused by bouts as well as self-medication were assessed among patients of Turkish ancestry living in Germany (D) or Turkey (T) in order to evaluate current analgetic concepts from a patients perspective. MATERIAL AND METHODS D and T were asked about the 3 months preceding the interview. RESULTS A total of 40 D and 40 T were included; 35/40 D and 40/40 T were on colchicine. In the last 3 months, 61.3 % had ≥ 1 bout and suffered from peritonitis (87.8 %), fever (61.2 %), myalgia (45 %), pleuritis (42.8 %), arthralgia (36.7 %), and cephalgia (32.6 %). Of the patients, 65.3 % were bedridden during bouts, 61.2 % sought the attention of a physician, 53.1 % were unable to work or attend school, and 38.8 % were hospitalized. The following drugs were taken: NSAIDs (45.6 %), NSAIDs and paracetamol (42.6 %), and combinations of NSAIDs with other analgesics. NSAIDs (58.6 %) and paracetamol (20.7 %) were considered the most potent substances. CONCLUSION FMF inflicts substantial morbidity. Patients most commonly rely on NSAIDs and paracetamol to relieve symptoms of FMF bouts.


Journal of Ultrasound in Medicine | 2014

Sonographic assessment of spleen size in Turkish migrants with Familial Mediterranean fever in Germany.

Ahmet Örnek; Mustafa Kurucay; Bernhard F. Henning; Nikolaos Pagonas; Renate Schlottmann; Wolfgang Schmidt; Arnd Giese

Familial Mediterranean fever (FMF) can be associated with splenomegaly. Prospective quantitative data are lacking. We performed a sonographic assessment of spleen size in patients with FMF and healthy control participants to assess its diagnostic value.


Schmerz | 2013

Schmerztherapeutische Bedarfsmedikation bei Attacken von familiärem Mittelmeerfieber

Arnd Giese; Ahmet Örnek; Mustafa Kurucay; L. Kilic; Süleyman Nahit Şendur; A. Münker; C. Puchstein; E. Lainka; H. Wittkowski; Bernhard F. Henning

BACKGROUND Familial Mediterranean fever (FMF) is an autoinflammatory disease characterized by bouts of fever and serositis. Morbidity caused by bouts as well as self-medication were assessed among patients of Turkish ancestry living in Germany (D) or Turkey (T) in order to evaluate current analgetic concepts from a patients perspective. MATERIAL AND METHODS D and T were asked about the 3 months preceding the interview. RESULTS A total of 40 D and 40 T were included; 35/40 D and 40/40 T were on colchicine. In the last 3 months, 61.3 % had ≥ 1 bout and suffered from peritonitis (87.8 %), fever (61.2 %), myalgia (45 %), pleuritis (42.8 %), arthralgia (36.7 %), and cephalgia (32.6 %). Of the patients, 65.3 % were bedridden during bouts, 61.2 % sought the attention of a physician, 53.1 % were unable to work or attend school, and 38.8 % were hospitalized. The following drugs were taken: NSAIDs (45.6 %), NSAIDs and paracetamol (42.6 %), and combinations of NSAIDs with other analgesics. NSAIDs (58.6 %) and paracetamol (20.7 %) were considered the most potent substances. CONCLUSION FMF inflicts substantial morbidity. Patients most commonly rely on NSAIDs and paracetamol to relieve symptoms of FMF bouts.


Schmerz | 2013

Schmerztherapeutische Bedarfsmedikation bei Attacken von familiärem Mittelmeerfieber@@@Self-medication to treat pain in attacks of familial Mediterranean fever: Auf der Suche nach einem schmerztherapeutischen Ansatz@@@Aiming to find a new approach to pain management

Arnd Giese; Ahmet Örnek; Mustafa Kurucay; L. Kilic; S.N. Şendur; A. Münker; C. Puchstein; E. Lainka; H. Wittkowski; Bernhard F. Henning

BACKGROUND Familial Mediterranean fever (FMF) is an autoinflammatory disease characterized by bouts of fever and serositis. Morbidity caused by bouts as well as self-medication were assessed among patients of Turkish ancestry living in Germany (D) or Turkey (T) in order to evaluate current analgetic concepts from a patients perspective. MATERIAL AND METHODS D and T were asked about the 3 months preceding the interview. RESULTS A total of 40 D and 40 T were included; 35/40 D and 40/40 T were on colchicine. In the last 3 months, 61.3 % had ≥ 1 bout and suffered from peritonitis (87.8 %), fever (61.2 %), myalgia (45 %), pleuritis (42.8 %), arthralgia (36.7 %), and cephalgia (32.6 %). Of the patients, 65.3 % were bedridden during bouts, 61.2 % sought the attention of a physician, 53.1 % were unable to work or attend school, and 38.8 % were hospitalized. The following drugs were taken: NSAIDs (45.6 %), NSAIDs and paracetamol (42.6 %), and combinations of NSAIDs with other analgesics. NSAIDs (58.6 %) and paracetamol (20.7 %) were considered the most potent substances. CONCLUSION FMF inflicts substantial morbidity. Patients most commonly rely on NSAIDs and paracetamol to relieve symptoms of FMF bouts.


Pediatric Rheumatology | 2013

PW01-009 – Markers of inflammation in adult FMF patients

Arnd Giese; Helmut Wittkowski; Ahmet Örnek; Mustafa Kurucay; Elke Lainka; Bernhard F. Henning

The therapeutic goal in Familial Mediterranean Fever (FMF) is to prevent attacks of clinically overt disease as well as to stop or reverse the development of amyloidosis and subsequent organ damage. The dosage of colchicine treatment is therefore generally adjusted according to clinical information and biochemical markers of subclinical inflammation.

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Arnd Giese

Ruhr University Bochum

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L. Kilic

Hacettepe University

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Elke Lainka

Boston Children's Hospital

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A. Münker

Ruhr University Bochum

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Gunnar Plehn

University of Düsseldorf

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Petra Maagh

Witten/Herdecke University

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