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  1. Article: School Teachers' Knowledge and Attitudes about the Emergency Management of Traumatic Dental Injuries in Turkey.

    Kurnaz, S / Bayraktar, C

    Community dental health

    2021  Volume 38, Issue 3, Page(s) 215–219

    Abstract: Objective: The emergency management of traumatized teeth is critical to their long-term outcomes. In school-aged children, most traumatic dental injuries (TDI) occur at school and teachers are often required to manage dental trauma (DT) emergencies. ... ...

    Abstract Objective: The emergency management of traumatized teeth is critical to their long-term outcomes. In school-aged children, most traumatic dental injuries (TDI) occur at school and teachers are often required to manage dental trauma (DT) emergencies. Therefore, the aim of this study was to determine teachers' knowledge and attitudes about TDI.
    Research design: Survey in 147 randomly selected schools in 53 cities in Turkey. A questionnaire enquiring about demographic data, knowledge of DT, and knowledge of first aid related to DT was distributed to primary school teachers.
    Results: 1,634 completed questionnaires were returned (65% response rate). 92.5% of the teachers were not satisfied with their DT knowledge, and almost all (97.8%) had never received DT training, although 28.1% had witnessed at least one case of DT. In the case of tooth avulsion, 26.4% believed that an avulsed tooth would be permanently lost, whereas 28.9% knew that a permanent tooth could be replanted.
    Conclusions: Knowledge of emergency management of TDI among schoolteachers in Turkey is inadequate, and training on their emergency management should be provided.
    MeSH term(s) Child ; Health Knowledge, Attitudes, Practice ; Humans ; School Teachers ; Surveys and Questionnaires ; Tooth Avulsion/therapy ; Tooth Injuries/therapy ; Turkey
    Language English
    Publishing date 2021-08-31
    Publishing country England
    Document type Journal Article
    ZDB-ID 631156-8
    ISSN 0265-539X
    ISSN 0265-539X
    DOI 10.1922/CDH_00375Kurnaz05
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  2. Article: Evaluation of platelet indices as a useful marker in papillary thyroid carcinoma.

    Dincel, O / Bayraktar, C

    Bratislavske lekarske listy

    2017  Volume 118, Issue 3, Page(s) 153–155

    Abstract: Objectives: Our aim was to investigate platelets (PLT) and their indices - mean platelet volume (MPV), platelet distribution width (PDW) and plateletcrit (PCT) - in the differential diagnosis of benign and malignant thyroid disorders.: Background: ... ...

    Abstract Objectives: Our aim was to investigate platelets (PLT) and their indices - mean platelet volume (MPV), platelet distribution width (PDW) and plateletcrit (PCT) - in the differential diagnosis of benign and malignant thyroid disorders.
    Background: Platelet and platelet indices recently started to be defined as an useful clinical marker in cancer patients. Their higher reproducibility rates and low cost provide them a wide range of usage.
    Material and methods: One-hundred and sixty patients were divided into three groups retrospectively. Group 1: papillary thyroid carcinoma patients (n = 65). Group 2: multi-nodular goiter patients (n = 65). Group 3: normal healthy subjects (n = 30). PLT, MPV, PDW and PCT measurements were compared between groups, and p < 0.05 was accepted as significant.
    Results: PDW was found to be significantly decreased in Group 1 (p < 0.01), and PCT was observed to be significantly increased in Group 1 (p < 0.01). There were no significant differences in PLT and MPV results.
    Conclusion: Statistically significant increases in PCT and decreases in PDW were observed in papillary thyroid cancer patients when compared with other groups. Platelet indices may be used as useful clinical markers in the differential diagnosis of benign and malignant thyroid disorders (Tab. 1, Fig. 2, Ref. 21).
    MeSH term(s) Adult ; Biomarkers ; Carcinoma, Papillary/blood ; Case-Control Studies ; Diagnosis, Differential ; Female ; Goiter, Nodular/blood ; Humans ; Male ; Mean Platelet Volume ; Middle Aged ; Reproducibility of Results ; Retrospective Studies ; Thyroid Cancer, Papillary ; Thyroid Neoplasms/blood
    Chemical Substances Biomarkers
    Language English
    Publishing date 2017-03-20
    Publishing country Slovakia
    Document type Journal Article
    ZDB-ID 127421-1
    ISSN 0006-9248
    ISSN 0006-9248
    DOI 10.4149/BLL_2017_030
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  3. Article ; Online: Relationship between increased carotid artery stiffness and idiopathic subjective tinnitus.

    Bayraktar, C / Taşolar, S

    European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery

    2017  Volume 274, Issue 5, Page(s) 2125–2130

    Abstract: Tinnitus is defined as perception of sound with no external stimulus, and can separate into pulsatile and non-pulsatile types. Arterial stiffness is a parameter that can predict the cardiovascular event and associated with incidence of stroke. It has ... ...

    Abstract Tinnitus is defined as perception of sound with no external stimulus, and can separate into pulsatile and non-pulsatile types. Arterial stiffness is a parameter that can predict the cardiovascular event and associated with incidence of stroke. It has been shown that increased arterial stiffness may lead to microvascular damage in brain. Our aim was to assess the arterial stiffness of the carotid system in the development and severity of idiopathic subjective tinnitus. Forty subjective tinnitus patients and 40 age- and sex-matched controls were enrolled in the study. The parameters obtained from the participants included pure tone hearing (dB), serum lipid profile (mg/dl), fasting glucose (mg/dl), blood pressure (mmHg), and body mass index (BMI, kg/m
    MeSH term(s) Adult ; Aged ; Audiometry, Pure-Tone/methods ; Blood Flow Velocity/physiology ; Blood Pressure/physiology ; Carotid Artery, Common/pathology ; Carotid Artery, Common/physiopathology ; Carotid Intima-Media Thickness ; Female ; Humans ; Male ; Middle Aged ; Prognosis ; Severity of Illness Index ; Statistics as Topic ; Tinnitus/diagnosis ; Tinnitus/physiopathology ; Vascular Stiffness/physiology
    Language English
    Publishing date 2017-05
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1017359-6
    ISSN 1434-4726 ; 0937-4477
    ISSN (online) 1434-4726
    ISSN 0937-4477
    DOI 10.1007/s00405-016-4440-4
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  4. Article ; Online: Injury Mechanism of Button Batteries in the Nasal Cavity and Possible Mitigation Strategies During Impaction.

    Sancaktar, Mehmet Eser / Bayraktar, Cem / Bakırtaş, Mustafa

    The Laryngoscope

    2020  Volume 130, Issue 10, Page(s) 2487–2493

    Abstract: Objective/hypothesis: Button batteries (BBs) impacted in the nasal cavity can cause several complications. Understanding the injury mechanism and developing possible mitigation strategies can reduce these complications.: Study design: Cadaveric sheep ...

    Abstract Objective/hypothesis: Button batteries (BBs) impacted in the nasal cavity can cause several complications. Understanding the injury mechanism and developing possible mitigation strategies can reduce these complications.
    Study design: Cadaveric sheep nasal septum model.
    Methods: Lithium, alkaline, silver oxide, and zinc-air BBs were placed on segments of the nasal septum of cadaveric sheep. The BB voltage, tissue temperatures, and pH were measured every 30 minutes for 6 hours. Subsequently, 5 drops of lemon juice, apple cider vinegar, tea, Coke (Coca-Cola Co., Atlanta, GA), tap water, and normal saline were applied separately to the other segments with the lithium BBs every 10 minutes for 3 hours. The visible injuries and the necrosis depths were assessed through the tissue temperatures, pH, and the voltage changes.
    Results: Both nonlithium and lithium BBs increased tissue pH without significant temperature changes. The 3V lithium BBs led to the greatest depth of necrosis, with a voltage loss of approximately 50% within the first 2 hours. Lemon juice and apple cider vinegar were the most effective liquids for reducing visible injury, pH, and necrosis without increasing the temperature during pre-removal time period.
    Conclusion: Nonlithium and lithium BBs caused alkaline tissue injury in a nasal septal model. Given the hazard severity, expedited BB removal is critical. For situations when removal cannot be immediately performed, further in vivo study is needed prior to considering human use of any pre-removal mitigation strategies in the nasal cavity.
    Level of evidence: NA Laryngoscope, 130:2487-2493, 2020.
    MeSH term(s) Animals ; Cadaver ; Disease Models, Animal ; Electric Power Supplies/adverse effects ; Foreign Bodies/complications ; Hydrogen-Ion Concentration ; Lithium ; Nasal Cavity ; Necrosis ; Sheep
    Chemical Substances Lithium (9FN79X2M3F)
    Language English
    Publishing date 2020-07-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80180-x
    ISSN 1531-4995 ; 0023-852X
    ISSN (online) 1531-4995
    ISSN 0023-852X
    DOI 10.1002/lary.28913
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  5. Article: The effect of perirenal fat stranding on infectious complications after ureterorenoscopy in patients with ureteral calculi.

    Demirelli, Erhan / Öğreden, Ercan / Bayraktar, Cemil / Tosun, Alptekin / Oğuz, Ural

    Asian journal of urology

    2021  Volume 9, Issue 3, Page(s) 307–312

    Abstract: Objective: Perirenal fat stranding (PFS) is linear areas of soft-tissue attenuation in the perirenal space on non-contrast computed tomography. The present study aimed to investigate whether PFS is associated with infectious complications after ... ...

    Abstract Objective: Perirenal fat stranding (PFS) is linear areas of soft-tissue attenuation in the perirenal space on non-contrast computed tomography. The present study aimed to investigate whether PFS is associated with infectious complications after ureterorenoscopy (URS) in patients with ureteral calculi in any location.
    Methods: The data of 602 patients with ureteral stones who underwent URS were analyzed retrospectively. The patients were divided into two groups as Group 1 (PFS not detected) and Group 2 (PFS detected). Gender, and age of patients, size, side, and location of the stone, operation time, double-J stent insertion status, perioperative ureter injury, postoperative infection after URS and related complications, and duration of hospital stay were compared.
    Results: While PFS was not detected in 530 patients, PFS was detected in 72 patients. The mean age, male/female ratio, side and localization of the stones, operation time, and perioperative insertion of the double-J after lithotripsy were statistically similar (
    Conclusion: According to the results of the present study, patients with ureteral stones accompanied by PFS are much more prone to ureteral injuries and infectious complications such as urinary tract infection, fever, and sepsis after URS.
    Language English
    Publishing date 2021-11-20
    Publishing country Singapore
    Document type Journal Article
    ZDB-ID 2831144-9
    ISSN 2214-3882
    ISSN 2214-3882
    DOI 10.1016/j.ajur.2021.11.006
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  6. Article ; Online: Evaluation of Nasal Mucociliary Clearance Time in COVID-19 Patients.

    Çeçen, Ayse / Bayraktar, Cem / Özgür, Abdulkadir / Akgül, Gökhan / Günal, Özgür

    The Journal of craniofacial surgery

    2021  Volume 32, Issue 8, Page(s) e702–e705

    Abstract: Background: Coronavirus Disease 2019 (COVID-19) is a viral pandemic emerging in East Asia and spreading rapidly to the rest of the world and continuing in our country. The number of studies examining the symptoms of the otolaryngology system and organs ... ...

    Abstract Background: Coronavirus Disease 2019 (COVID-19) is a viral pandemic emerging in East Asia and spreading rapidly to the rest of the world and continuing in our country. The number of studies examining the symptoms of the otolaryngology system and organs in COVID-19 patients is limited. The purpose of this study is to show whether COVID-19 infections cause any changes in nasal physiology in adult patients by measuring the mucociliary clearance (MCC) time with the saccharin test.
    Methods: One hundred one patients with laboratory-confirmed COVID-19 infection (group 1, n = 42 smokers and group 2, n = 59 nonsmokers) and 87 individuals without COVID-19 infection as the control group (group 3, n = 33 smokers and group 4, n = 54 nonsmokers) were included in the study. A saccharin test was used to evaluate the nasal MCC time.
    Results: Mucociliary clearance test averages of the groups were determined as 473.571 ± 263.684, 442.966 ± 228.463, 468.333 ± 267.367, 412.629 ± 192.179 seconds, respectively. When the test durations were examined, the group with the most prolonged MCC duration was determined as the smoking COVID (+) patient group (473.571 ± 263.684 seconds). The second group, with the most prolonged MCC duration, was determined as the smoking control group (468.333 ± 267.367 seconds). No statistically significant difference was found in intergroup mucociliary clearance time (P = 0.760).
    Conclusion: Although the authors found that smoking and viral infections prolong the MCC duration in our study, they did not find a statistically significant difference between the groups in terms of MCC duration.
    MeSH term(s) Adult ; COVID-19 ; Humans ; Mucociliary Clearance ; Nasal Mucosa ; Nose ; SARS-CoV-2 ; Smoking
    Language English
    Publishing date 2021-05-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1159501-2
    ISSN 1536-3732 ; 1049-2275
    ISSN (online) 1536-3732
    ISSN 1049-2275
    DOI 10.1097/SCS.0000000000007699
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  7. Article: Evaluation of choroidal thickness measurements in pediatric obstructive sleep apnea syndrome patients.

    Bayraktar, Cem / Şimşek, Ali

    The Turkish journal of pediatrics

    2017  Volume 59, Issue 1, Page(s) 62–67

    Abstract: Bayraktar C, Şimşek A. Evaluation of choroidal thickness measurements in pediatric ...

    Abstract Bayraktar C, Şimşek A. Evaluation of choroidal thickness measurements in pediatric obstructive sleep apnea syndrome patients. Turk J Pediatr 2017; 59: 62-67. Choroidal vascular impairment and obstructive sleep apnea syndrome (OSAS) related disorders have been shown in adults, but there have been no investigations with regard to the choroidal thickness measurements in children with OSAS. Our aim was to investigate this relationship in the early childhood period, which correlates with OSAS peak incidence due to adenotonsillar enlargement. One-hundred and nine pediatric OSAS patients and 42 age-sex matched controls were enrolled in this study. Nocturnal pulse oximetry was used to define the OSAS patients. Demographic data like age, sex and body-mass index were recorded. All of the subjects underwent complete otolaryngologic and ophthalmologic examination including visual acuity, intraocular pressure, central corneal thickness, axial length and choroidal thickness measurements. Overall, the 1,000 μm and 1,500 μm nasal choroid measurements were found to be significantly lower in the patient group (p < 0.05). However, only a poor inverse correlation emerged between the body-mass index (BMI) and the foveal center measurements in the patients. Observed alterations in the choroid may signify the initial impairment of known OSAS-related eye disorders, like glaucoma, floppy eyelid syndrome, and non-arteritic ischemic optic neuropathy. Ophthalmologists, otolaryngologists and pediatricians working together as a team may be able to prevent future eye diseases.
    Language English
    Publishing date 2017
    Publishing country Turkey
    Document type Journal Article
    ZDB-ID 123487-0
    ISSN 0041-4301
    ISSN 0041-4301
    DOI 10.24953/turkjped.2017.01.010
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  8. Article ; Online: Increased Concomitant Nasal Procedure Frequency in Bilateral Endoscopic Dacryocystorhinostomy.

    Bayraktar, Cem / Şimşek, Ali

    The Journal of craniofacial surgery

    2017  Volume 28, Issue 4, Page(s) 980–982

    Abstract: The etiology of primary nasolacrimal duct obstruction (NLDO) is unknown, and the disease may exist bilaterally in a small number of patients. Dacryocystorhinostomy (DCR) surgery is the recommended treatment for these patients, but concomitant nasal ... ...

    Abstract The etiology of primary nasolacrimal duct obstruction (NLDO) is unknown, and the disease may exist bilaterally in a small number of patients. Dacryocystorhinostomy (DCR) surgery is the recommended treatment for these patients, but concomitant nasal pathologies are believed to be related to decreased surgical success. The authors aim to assess the concomitant required nasal surgical procedure frequency for endoscopic surgical access retrospectively in bilateral and unilateral NLDO patients. Twenty-eight patients who underwent bilateral endoscopic DCR simultaneously and 30 patients who underwent unilateral endoscopic DCR were enrolled in this retrospective study. Required concomitant nasal procedure frequency was recorded. In the bilaterally applied DCR group, septoplasty, partial midline turbinectomy, and inferior nasal concha submucosal resection rates were 16 (57.1%), 5 (17.8%), and 3 (10.7%) patients, respectively. Septoplasty and concha bullosa resection were performed simultaneously in 2 patients. Also, uncinectomy was performed with septoplasty in 1 patient. The concomitant nasal surgery rate was 22 of 28 patients (78.6%). On the other hand, in the unilaterally applied DCR group, septoplasty, partial midline turbinectomy, and inferior nasal concha submucosal resection rates were 5 (16.7%), 1 (3.3%), and 2 (6.7%) patients, respectively. Both septoplasty and concha bullosa resection were done in 1 patient. Uncinectomy was performed on 1 (3.3%) patient. A concomitant surgery rate was observed in 8 of 30 patients (26.7%). Nasal pathology, which requires surgical intervention, is seen much more frequently in bilateral than in unilateral NLDO patients.
    Language English
    Publishing date 2017-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1159501-2
    ISSN 1536-3732 ; 1049-2275
    ISSN (online) 1536-3732
    ISSN 1049-2275
    DOI 10.1097/SCS.0000000000003502
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  9. Article ; Online: Endoscopic tympanoplasty: learning curve for a surgeon already trained in microscopic tympanoplasty.

    Doğan, Sedat / Bayraktar, Cem

    European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery

    2017  Volume 274, Issue 4, Page(s) 1853–1858

    Abstract: The aim of this study was to evaluate the learning curve of endoscopic tympanoplasty for a surgeon already trained in microscopic tympanoplasty. We analyzed the clinical records of 81 patients who underwent transcanal endoscopic type 1 tympanoplasty and ... ...

    Abstract The aim of this study was to evaluate the learning curve of endoscopic tympanoplasty for a surgeon already trained in microscopic tympanoplasty. We analyzed the clinical records of 81 patients who underwent transcanal endoscopic type 1 tympanoplasty and 30 control patients who underwent microscopic tympanoplasty between 2013 and 2015 in a tertiary hospital. All operations were performed by a single surgeon already trained in microscopic tympanoplasty. Patients were divided into four groups according to the date of surgery chronologically (group 1 early stage, group 2 intermediate stage, group 3 advanced stage and group 4 control). We evaluated the four groups according to surgery duration, audiometric results, and graft intake success. The operation duration shortened in accordance with the surgeon's experience and there were two subsequent steps during the learning curve: first, after 30 procedures; and second, after 60 procedures. The mean operation duration was 88.60 ± 21.10 min in group 1, and 62.00 ± 12.48 min in group 2. After 60 procedures, the mean operation duration was 43.81 ± 8.34 min in group 3. In the control group, the microscopic tympanoplasty duration was 69.93 ± 12.56 min. When we compared audiologic results (air conduction, bone conduction, and air-bone gap) and graft intake success rates, there were no significant differences between groups. Endoscopic tympanoplasty is a minimally invasive and effective technique. Mastering endoscopic tympanoplasty takes approximately 60 operations for a surgeon already trained in microscopic tympanoplasty. Graft intake success rates and hearing results are stable during the learning curve.
    MeSH term(s) Adolescent ; Adult ; Aged ; Audiometry ; Clinical Competence ; Endoscopy/education ; Female ; Humans ; Learning Curve ; Male ; Microsurgery ; Middle Aged ; Retrospective Studies ; Surgeons/education ; Tympanoplasty/education ; Tympanoplasty/methods ; Young Adult
    Language English
    Publishing date 2017-04
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1017359-6
    ISSN 1434-4726 ; 0937-4477
    ISSN (online) 1434-4726
    ISSN 0937-4477
    DOI 10.1007/s00405-016-4428-0
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  10. Article ; Online: Reply to the letter to the editor concerning "Endoscopic tympanoplasty: learning curve for a surgeon already trained in microscopic tympanoplasty".

    Doğan, Sedat / Bayraktar, Cem

    European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery

    2017  Volume 274, Issue 11, Page(s) 4061–4062

    Language English
    Publishing date 2017
    Publishing country Germany
    Document type Letter ; Comment
    ZDB-ID 1017359-6
    ISSN 1434-4726 ; 0937-4477
    ISSN (online) 1434-4726
    ISSN 0937-4477
    DOI 10.1007/s00405-017-4613-9
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