Omur Aydin

Prof. Dr. Omur Aydin

orcid

Research Focus & Metrics

Academic Career Length

26Years (2001-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 May 2018 in BMC Pulmonary Medicine
Verified
Journal Article
Open access
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HTHesham Tarraf
Hesham Tarraf
OAOmur Aydin
Omur Aydin
DMDilsad Mungan
Dilsad Mungan
MAMohammad Albader
Mohammad Albader
BMBassam Mahboub
Bassam Mahboub
AHAbdelkader El Hasnaoui
Abdelkader El Hasnaoui
Asthma is a common chronic respiratory disease leading to morbidity, mortality and impaired quality of life worldwide. Information on asthma prevalence in the Middle East is fragmented and relatively out-dated. The SNAPSHOT program was conducted to obtain updated information. SNAPSHOT is a cross-sectional epidemiological program carried out in five Middle Eastern countries (Egypt, Turkey, Kuwait, Saudi Arabia, and the United Arab Emirates, the latter three grouped into a Gulf cluster) to collect data on asthma, allergic rhinitis, benign prostatic hyperplasia and bipolar disorder. The survey was carried out by telephone in a random sample of the adult general population with quotas defined according to country demographics. The analysis presented in this paper focuses on asthma. Subjects were screened for asthma based on criteria from the global Asthma Insights and Reality studies. Current prevalence (last 12 months) was estimated. Multivariate logistic regression analyses were used to investigate risk factors related to asthma and the association with allergic rhinitis and other co-morbidities. Quality of life was assessed using the three-level EQ-5D questionnaire. 2124 out of the 33,486 subjects enrolled in the SNAPSHOT program fulfilled the criteria for asthma. The adjusted prevalence of asthma ranged from 4.4% [95% CI: 4.0–4.8%] in Turkey, to 6.7% [95% CI: 6.2–7.2%] in Egypt and 7.6% [95% CI: 7.1–8.0%] in the Gulf cluster. Prevalence was higher (p < 0.0001) in women than men and increased with age (p < 0.0001). Co-morbidities occurred more frequently in asthma subjects compared to the non-asthma population (38% vs. 15% p < 0.0001). Subjects with asthma reported a lower (p < 0.0001) EQ-VAS score (68.2 ± 22.9) compared to the general population (78.1 ± 17.5). The risk factors associated with asthma were age, gender, country, and certain co-morbidities, namely respiratory, cardiovascular, gastrointestinal, nervous, and neurological diseases. The observed adjusted prevalence of asthma in the Middle East ranges from 4.4% to 7.6%, which is comparatively lower than the reported prevalence in Europe and North America. Asthma has a negative impact on quality of life, and is associated with high levels of co-morbid diseases, indicating a need for physicians to check for co-morbidities and ensure they are managed correctly in all asthma patients.

3 February 2011 in International Archives of Allergy and Immunology
Verified
Journal Article
Open access
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ÖGÖzlem Göksel
Özlem Göksel
OAOmur Aydin
Omur Aydin
CACetin Atasoy
Cetin Atasoy
SASerdar Akyar
Serdar Akyar
YDYavuz Selim Demirel
Yavuz Selim Demirel
SBSevim Bavbek
Sevim Bavbek
Background: Hypersensitivity to contrast media (CMs) may be common and serious. Aim: To evaluate the prevalence of CM hypersensitivity, risk factors associated with it and the role of skin testing in its diagnosis. Methods: A structured questionnaire was administered to patients who underwent computed tomography during a 1-year period. Skin tests with CMs, including skin prick tests (SPTs), intradermal tests (IDTs) and patch tests (PTs), were conducted on CM reactors (n = 24). Volunteers who tolerated CM exposure or had never been exposed to any CMs served as controls (n = 37). Results: A total of 1,131 patients (630 females and 501 males; mean age 55 ± 14.2 years) were enrolled in the study. The prevalence of historical and current CM reactors was 33/1,131 (2.92%) and 8/1,105 (0.72%), respectively. The skin was the most affected site, with mild to moderate reactions. Female gender, a history of doctor-diagnosed asthma, drug allergy, food allergy and psychiatric diseases were significant risk factors. The sensitivities of SPTs and early readings of IDTs in the diagnosis of immediate reactions were 0 and 20%, respectively, and the specificities were 94.6 and 91.4%, respectively. For early readings of IDTs, the positive predictive value (PPV) and negative predictive value (NPV) were 40 and 80%, respectively. For nonimmediate reactions, the sensitivities of delayed readings of IDTs and PTs were 14.3 and 25%, respectively; specificity was 100% for both tests. The PPV was 100% for both of these tests, and the NPVs were 85.4 and 82.4%, respectively. Conclusions: Our findings are comparable with the incidence, profile and risk factors associated with CM hypersensitivity reported previously. Skin testing with CMs has a high specificity, but its role in diagnosis is limited due to low sensitivity.

1 January 2018 in World Allergy Organization Journal
Verified
Journal Article
Open access
ZSZeynep Celebi Sözener
Zeynep Celebi Sözener
BABegum Gorgulu Akin
Begum Gorgulu Akin
DMDilsad Mungan
Dilsad Mungan
BSBetul Ayse Sin
Betul Ayse Sin
ZMZeynep Misirligil
Zeynep Misirligil
SBSevim Bavbek
Sevim Bavbek
Data are limited regarding the effectiveness of omalizumab in patients with eosinophilic granulomatosis with polyangiitis (EGPA). Our aim was to evaluate the clinical and functional effectiveness of omalizumab in patients with EGPA in long-term follow-up. This study was a retrospective chart review of patients with EGPA who were treated with omalizumab injections between May 2012 and April 2018. Once treatment with omalizumab was started, data were collected at various time points: baseline, the 16th week, 1st year, and annually until the last evaluation. Eighteen patients (16F/2M) with a mean age of 48.61 ± 11.94 years were included. Data were available for all patients for the first year, 12 patients for the second year, 10 patients for the third year, 8 patients for the fourth year and 5 patients for the fifth year. All patients were on mean dosage of 15.77 ± 7.6 mg/day oral corticosteroid (OCS) as daily bases for mean 8.61 ± 4 years besides high-dose inhaler corticosteroid/long-acting beta agonist. Antineutrophil cytoplasmic antibodies (ANCA) were positive in 2 patients, and 8 patients were diagnosed as having vasculitis by skin biopsy, one patient had polyneuropathy, and one patient had cardiac involvement.By considering the individual responses of patients and the level of improvement at the last evalulation, 10 (55.6%) patients responded completely, 1 responded partially, and 7 (38.9%) had no improvement. Omalizumab worked as a steroid-sparing agent in all patients and the daily OCS dose was reduced with a mean dosage of 6.28 mg/day at the end of the first year. The mean OCS reduction time for the whole group was 4 months. A reduction in asthma exacerbations/hospitalizations, improvement in forced expiratory volume in 1 second, and no decrease in the eosinophil count during treatment with omalizumab were also observed. Omalizumab improved asthma control in some patients with EGPA with uncontrolled asthma by reducing asthma exacerbations and oral steroid requirement. However, more data are needed before recommending widespread use of omalizumab in patients with EGPA.

30 July 2013 in Allergy
Verified
Journal Article
Closed access
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SÖS. Kepil Özdemir
S. Kepil Özdemir
IYİ. Yılmaz
İ. Yılmaz
OAOmur Aydin
Omur Aydin
SBS. Büyüköztürk
S. Büyüköztürk
AGA. Gelincik
A. Gelincik
SBS. Bavbek
S. Bavbek

1 June 2018 in Respiratory Medicine
Verified
Journal Article
Open access
DMDilsad Mungan
Dilsad Mungan
OAOmur Aydin
Omur Aydin
BMBassam Mahboub
Bassam Mahboub
MAMohammad Albader
Mohammad Albader
HTHesham Tarraf
Hesham Tarraf
AHAbdelkader El Hasnaoui
Abdelkader El Hasnaoui
Asthma affects millions worldwide resulting in a significant disease burden. However, data on asthma burden from the Middle East is limited. This analysis describes the asthma burden in Egypt, Turkey and a Gulf cluster (Kuwait, Saudi Arabia and United Arab Emirates) as part of the SNAPSHOT program. SNAPSHOT was an observational, cross-sectional program carried out by telephone in a random sample of the adult general population of the five above mentioned countries. Quotas were defined per country demographics. Subjects were considered to have asthma if they fulfilled the screening criteria, based on the global Asthma Insights and Reality studies. Data collected included demographics, physician consultations, and asthma control (measured by the Asthma Control Test; ACT). Quality of life was assessed using the EuroQol Five-Dimension questionnaire (EQ-5D); and limitations to daily activities using the modified Sheehan Disability Scale (SDS). 939 subjects answered questions related to asthma burden. Overall, 367 (44.2%) reported uncontrolled asthma (ACT≤19), and reported significantly lower EQ-5D-3L utility values (0.6 ± 0.4) and EQ-VAS scores (60.7 ± 24.2) compared to controlled subjects (0.8 ± 0.3 and 75.3 ± 19.8 respectively) (p < 0.0001). A significantly higher proportion with uncontrolled asthma also reported experiencing impact on activities of daily living compared to subjects with controlled asthma (p < 0.0001). Overall, 355 (37.8%) asthma subjects were followed by a physician. However, most visits were unscheduled (695;78.0%). Uncontrolled asthma imposes a significant burden in these Middle Eastern countries resulting in increased frequency of healthcare use, lower quality of life, and a higher impact on daily life compared to controlled asthma.

20 March 2019 in International Archives of Allergy and Immunology
Verified
Journal Article
Closed access
PDF file
RKReşat Kendirlinan
Reşat Kendirlinan
Reyhan GümüşburunReyhan Gümüşburun
Reyhan Gümüşburun
PÇPamir Çerçi
Pamir Çerçi
EÖEmre Özbek
Emre Özbek
SASeda Altıner
Seda Altıner
SBSevim Bavbek
Sevim Bavbek
Background: Rapid drug desensitization (RDD) induces a temporary tolerance to chemotherapeutics that induce hypersensitivity reactions (HSRs). Purpose: Our objective is to report our experience with RDD to platins, taxanes, etoposide, doxorubicin, and irinotecan. Methods: The study was conducted as a retrospective chart review of patients with symptoms of HSRs to chemotherapeutics. HSRs were classified as grade I, II, or III, based on their severity. Skin prick/intradermal tests were performed with implicated chemotherapeutics. A 12-step RDD protocol was used. Results: The study consisted of 38 women and 3 men (mean age 53.3 ± 11.6 years). Patients had ovarian (n = 13, 31.8%), breast (n = 10, 24.4%), colon (n = 7, 17%), lung (n = 4, 9.8%), and other cancers (n = 7; endometrial sarcoma, testicular cancer, uterine cancer, ampulla of Vater tumor, choledochal tumor, peritonitis carcinomatosa, and Merkel cell carcinoma, n = 1, respectively). Twenty-two patients experienced HSRs to platins, 15 to taxanes, and 4 to other chemotherapeutics (doxorubicin, irinotecan, and etoposide). A total of 122 RDDs (47 to platins, 52 to taxanes, 23 to other chemotherapeutics) were performed. In 25 (61%) patients no reactions occurred during RDD, but breakthrough reactions developed in 16 patients (39%) with platins (n = 11), taxanes (n = 3), doxorubicin (n = 1), and irinotecan (n = 1). RDD procedures could not be completed in only 2 patients with grade II breakthrough reactions to carboplatin and oxaliplatin. Conclusion: In our experience, 98.3% of 122 RDDs were completed. We found that RDD was safe and effective in this the largest series of RDD with chemotherapeutics in our country.