Browsing by Author "Akdogan, M. Volkan"

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Assessment of Vestibular Function in Adults with Prelingual Hearing Loss Using c/oVEMP Tests
(2020) Tanyeri, Oya; Akdogan, M. Volkan; Hizal, Evren; Buyuklu, A. Fuat; 0000-0001-9710-9974; 0000-0002-9699-6783; 32066551; AAJ-4584-2021; A-5853-2018
OBJECTIVES: The aim of the present study was to compare the vestibular system integrity of individuals with normal hearing with that of prelingual hearing impaired individuals. It is well known that ocular vestibular evoked myogenic potentials (oVEMPs) reflect utricular function, whereas cervical vestibular evoked myogenic potentials (cVEMPs) reflect saccular function.Therefore,oVEMP and cVEMP tests were applied to evaluate the vestibular system integrity of hearing impaired individuals participating in the research. MATERIALS and METHODS: The study group consisted of sensorineural prelingual hearing-loss volunteers aged from 18 to 60 years, whereas the control group consisted of age- and gender-matched healthy volunteers. cVEMP and oVEMP tests were performed to evaluate the integrity of the vestibular system, and the results were compared with those of the control group. RESULTS: The study included 20 (76.9%) women and 6 (23.1%) men in the study group; on the other hand, the control group consisted of 19 (73.196) women and 7 (26.9%) men. There was a difference between the study group and the control group when oVEMP and cVEMP responses were compared, and the response percentage was higher in the control group. The response rates of oVEMP and cVEMP in patients with prelingual hearing loss were 44.2 % and 59.6%, respectively. There was also a statistically significant difference between the groups for oVEMP amplitude and cVEMP P1 latency (p <= 0.05). CONCLUSION: These findings suggest that prelingual hearing loss is related to both utricular and saccular dysfunctions. However, oVEMPs were more often abnormal in prelingual deaf patients than cVEMPs, suggesting that utricular dysfunction may be more common than saccular dysfunction.
Evaluation of the nasal septal body in pediatric patients
(2021) Coban, Kubra; Ozer, Fulya; Akdogan, M. Volkan; 0000-0001-5381-6861; ABC-1809-2020
Objective: The nasal septal body (NSB) is a fusiform shaped dynamic structure and the widest part of the anterior septum. It consists of a thickened septal cartilage, bone, glandular, and vasoactive structures covered by mucous membranes. Hence, it plays a role in nasal airflow and humidification. This study evaluated the size of this structure in pediatric patients with allergic rhinitis and other sinonasal pathologies. Methods: The study was conducted at the Baskent University Hospital otolaryngology department between 2015 and 2019. A total of 117 children were enrolled, including 96 patients and 21 controls. The study group was divided into 3 sub-groups: group 1, with sinonasal pathologies and allergic rhinitis; group 2, with sinonasal pathologies only; and group 3, with allergic rhinitis only. The widest horizontal part of the NSB was measured on paranasal coronal computed tomography sections. Results: The mean NSB width in the patient and control groups were 1.00 +/- 0.19 cm and 0.90 +/- 0.16 cm, respectively. The NSB was significantly larger in the patient groups compared to the controls (p=0.032). There was no significant difference among the study sub-groups in terms of NSB width (p=0.215). A significant positive correlation was found between age and NSB in the patient and control groups (r=0.366, p=0.000 and r=0.632, p=0.002, respectively). There was a significant correlation between age and NSB in group 1 and group 2 (r=0.354, p=0.015 and r=0.447, p=0.010, respectively). Conclusion: The nasal septal body is significantly larger in children with comorbid sinonasal pathologies and allergic rhinitis compared to the control group.
Letter to the editor regarding 'Evaluation of vitamin D levels in children with primary epistaxis'
(2017) Akdogan, M. Volkan; Hizal, Evren; 0000-0001-9710-9974; 0000-0002-9699-6783; 28648890; AAJ-4584-2021; A-5853-2018
The Role of Meteorologic Factors and Air Pollution on The Frequency of Pediatric Epistaxis
(2018) Akdogan, M. Volkan; Hizal, Evren; Semiz, Mustafa; Topal, Ozgul; Akkas, Hakan; Kabatas, Aydin; Erbek, Selim S.; 0000-0001-9710-9974; 0000-0002-9699-6783; 0000-0001-6305-5023; 0000-0003-4825-3499; 30273433; AAJ-4584-2021; A-5853-2018; ABI-6777-2020; B-7604-2019
Fluctuations in atmospheric temperature, humidity, and air pollution are associated with the incidence of epistaxis. To date, no study in the literature has evaluated the effect of air pollution and meteorologic conditions on the pediatric population. We aimed to evaluate the effect of meteorologic factors and air pollution on the frequency of epistaxis in children. Children presenting to an outpatient clinical setting at a tertiary care hospital during a 5-year period ( July 1, 2009, to June 30, 2014) and diagnosed with epistaxis formed the study population. Daily temperature and humidity parameters and average daily atmospheric water vapor pressure, average daily concentration of particulate matter < 10 mu m in diameter, and sulfur dioxide readings were obtained. The distribution of daily parameters was analyzed. Of the 1,559 children with the primary diagnosis of epistaxis, data from 1,330 children were analyzed after excluding patients with coexisting pathologies. Positive correlations were found between the frequency of epistaxis and both the average daily temperature and the difference between the maximum and minimum daily temperature. There was a negative correlation between the epistaxis frequency and the average daily humidity, the difference between the maximum and minimum daily humidity, the average daily concentration of particulate matter, and the sulfur dioxide levels. Our findings suggest that epistaxis in children is related to high temperatures and low humidity.