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Öğe All Concha Bullosa: An Undefined Abnormality of the Lateral Nasal Wall(Springer, 2013) Toplu, Yuksel; Bayindir, Tuba; Karatas, Erkan; Akarcay, MustafaPneumatization of the turbinates, are the anatomic variations of lateral nasal wall. Turbinate pneumatization, refers to the existence of air cell inside the turbinates. Pneumatization of the middle turbinate is common, whereas rare in the superior and especially inferior turbinate. In this report we presented a case who has bilaterally pneumatization of all conchas.Öğe Angiographic embolization in epistaxis: Our clinical experience and results(2021) Cicek, Mehmet Turan; Yildirim, İsmail Okan; Bayindir, Tuba; Sarac, Kaya; Tan, Mehmet; Aslan, Mehmet; Ozer Ozturk, EbruAim: Nosebleed, more commonly called epistaxis is a general clinical problem, and the most of bleedings can be treated non-invasive approach. However, because of persistent and sometimes life-threatening bleeding, additional treatment such as super-selective embolization may be required. In this study, we report our data on the endovascular treatment of persistent epistaxis. Materials and Methods: Between January 2010 and December 2019, all patients who were followed up at Inonu University Turgut Ozal Medical Center Otorhinolaryngology Clinic due to recurrent persistent nosebleed and required endovascular treatment were retrospectively screened. Demographic data, cause of epistaxis, localization of the bleeding, the clinical significance of the bleeding, interventional approach, complications related to treatment, and results were evaluated. Results: All of 18 patients with intractable epistaxis were included in the study. Depending on the etiology of epistaxis, patients were determined into three groups: idiopathic epistaxis (10/18), iatrogenic or traumatic epistaxis (7/18), and nasopharyngeal cancer (1/18). Nine of 18 patients required blood transfusions. The internal maxillary artery was embolized unilaterally in 12 of 18 (66%) and bilaterally in 2 of 18 (11%) procedures. Four patients were not embolized because of bleeding originated from ethmoidal branches of the ophthalmic artery. These four patients were operated on (endoscopic ethmoidectomy and bleeding control). Long-term success rates of embolization were 14 of 14. Major complications (transient hemiparesis) occurred in one patient after embolization. Conclusion: Endovascular approach proves to be effective for intractable and fatal epistaxis. Embolization has a good risk-benefit ratio in persistent bleeding. However, if bleeding is originated by the ethmoidal branches of the ophthalmic artery, embolization may not be performed to avoid visual complications.Öğe Angiographic embolization in epistaxis: Our clinical experience and results(2021) Cicek, Mehmet Turan; Yildirim, Ismail Okan; Bayindir, Tuba; Sarac, Kaya; Tan, Mehmet; Aslan, Mehmet; Ozer Ozturk, EbruAbstract: Aim: Nosebleed, more commonly called epistaxis is a general clinical problem, and the most of bleedings can be treated non-invasive approach. However, because of persistent and sometimes life-threatening bleeding, additional treatment such as super-selective embolization may be required. In this study, we report our data on the endovascular treatment of persistent epistaxis. Materials and Methods: Between January 2010 and December 2019, all patients who were followed up at Inonu University Turgut Ozal Medical Center Otorhinolaryngology Clinic due to recurrent persistent nosebleed and required endovascular treatment were retrospectively screened. Demographic data, cause of epistaxis, localization of the bleeding, the clinical significance of the bleeding, interventional approach, complications related to treatment, and results were evaluated. Results: All of 18 patients with intractable epistaxis were included in the study. Depending on the etiology of epistaxis, patients were determined into three groups: idiopathic epistaxis (10/18), iatrogenic or traumatic epistaxis (7/18), and nasopharyngeal cancer (1/18). Nine of 18 patients required blood transfusions. The internal maxillary artery was embolized unilaterally in 12 of 18 (66%) and bilaterally in 2 of 18 (11%) procedures. Four patients were not embolized because of bleeding originated from ethmoidal branches of the ophthalmic artery. These four patients were operated on (endoscopic ethmoidectomy and bleeding control). Long-term success rates of embolization were 14 of 14. Major complications (transient hemiparesis) occurred in one patient after embolization. Conclusion: Endovascular approach proves to be effective for intractable and fatal epistaxis. Embolization has a good risk-benefit ratio in persistent bleeding. However, if bleeding is originated by the ethmoidal branches of the ophthalmic artery, embolization may not be performed to avoid visual complications.Öğe ANİ İŞİTME KAYIPLI HASTALARDA RUTİN HEMOGRAM İÇİNDEKİ İNFLAMATUAR MARKIRLARIN PROGNOZA ETKİSİ(2021) TAN, Mehmet; CENGİZ, Deniz Uğur; KARAKAŞ, Oguz; Bayindir, TubaBu çalışma; ani işitme kayıplı (AİK) hastaların hemogram sonuçlarının hastalığın derecesi ve prognozuna etkisini değerlendirmektedir. Çalışmaya, 2015-2020 yılları arasında kliniğimizde AİK tanısı konulan 325 hastanın 70’i dâhil edildi. Hastaların tedavi öncesindeki rutin hemogram parametreleri ve işitme testleri incelendi. Hastalar ile benzer özelik taşıyan sağlıklı bireylerden kontrol gurubu oluşturuldu. Hastalar işitme kaybı derecesi kaybına göre de 3 guruba ayrıldı. Çalışmamızda; hemoglobin, trombosit hacmi (MPV), platelet, nötrofil, nötrofil lenfosit oranı (NLO) ve platelet lenfosit oranı (PLO), platelet x nötrofil / lenfosit (PxN/L) değerleri karşılaştırıldı. AİK’lı gurup ile kontrol gurubu arasında hemoglobin, nötrofil, lenfosit, MPV, PLO, NLO, PxN/Ldeğerleri açısından istatiksel fark saptandı. Hastalığın tanı aşamasında yapılan rutin ve ucuz bir tetkik ile AİK tanısında ve prognozunda bu parametreler yeni bir belirteç olarak kullanılabilir.Öğe Assessment of mucosal changes associated with nasal splint in a rabbit model(Assoc Brasileira Otorrinolaringologia & Cirurgia Cervicofacial, 2015) Tan, Mehmet; Kalcioglu, M. Tayyar; Sahin, Nurhan; Bayindir, Tuba; Samdanci, Emine; Filiz, AliyeIntroduction: There is no consensus on duration of the nasal splint after nasal septum surgeries. The pressure of nasal splint on the mucosa may cause tissue necrosis and nasal septum perforation. Objectives: To investigate the histopathological changes of the nasal mucosa caused by nasal splints in a rabbit model. Methods: No splint was used in group A. Bilateral silicone nasal splints were placed for five, ten, and 15 days in groups B, C, and D, respectively. Biopsy of the nasal mucosa was performed after removal of splint. Histopathologic evaluations were performed. The severity and depth of the inflammation were scored. Results: Group A had a normal histological appearance. Comparison of the results of groups B, C, and D with group A demonstrated statistically significant differences with regards to the severity of histopathological findings. There was no statistically significant difference between groups B and C. There were statistically significant differences between the groups B and D, and also between groups C and D. Conclusions: Longer duration of nasal splint had a higher risk for septal perforation. Therefore, removal of the splint as soon as possible may be helpful for preventing potential perforations. (C) 2015 Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervico-Facial. Published by Elsevier Editora Ltda. All rights reserved.Öğe Association Between Helicobacter pylori and Pharyngolaryngeal Carcinomas: Role in Development and Prognostic Significance(Galenos Yayincilik, 2019) Bayindir, Tuba; Bayindir, Yasar; Firat Koca, Cigdem; Demir, Ismail; Otlu, BarisHelicobacter pylori is a worldwide common bacteria that infects humans. This Gram-negative microorganism is microaerophilic, spiral or curved shaped, and urease, catalase and oxidase-positive. It has the ability to live in the acidic environment of the gastric mucosa. It has been shown that H. pylori plays a role in the development of gastric ulcers and malignant lesions. Furthermore, it was reported that H. pylori may be a cause of several systemic illnesses such as cardiovascular, dermatologic, immunologic, neurologic, hematologic, ophthalmologic, gynecologic, endocrine, and hepatobiliary diseases. In addition, positive or negative correlations between H. pylori infection and rhinitis, sinusitis, adenoiditis or adenoid hyperplasia, otitis media, tonsillitis, or tonsil hypertrophy have been demonstrated in various studies in the literature. However, H. pylori's role in the pathogenesis or association with these diseases remains controversial. Some studies reported that systemic immune and inflammatory responses against H. pylori might cause some systemic diseases as well as different types of malignancies. Although there are studies about the role of H. pylori in benign and malignant diseases of the upper and lower respiratory tract, further studies are needed to reveal the pathophysiological relationship between H. pylori infection and respiratory diseases. The aim of this review was to summarize the studies that reported either a positive or negative relationship between H. pylori and benign and malignant diseases of the respiratory tract.Öğe Congenital Aplasia of the External Ear Canal and Total Dehiscence of Mastoid-Tympanic Segment of the Facial Nerve as a Cause of Recurrent Facial Paralysis(Lippincott Williams & Wilkins, 2013) Toplu, Yuksel; Kalcioglu, Mahmut Tayyar; Karatas, Erkan; Bayindir, TubaFacial nerve (FN) macrodehiscence, in contrast to microdehiscence, generally occurs as a result of chronic otitis media and is rarely seen congenitally. A patient with normal hearing who had no history of ear disease or ear operation came to the clinic with recurrent facial paralysis (FP) and frequent blockage of the external ear canal with epithelial debris complaints. In the explorative ear surgery, we observed that the posterior wall of the external ear canal or tympanic ring was absent, a large external ear cavity was covered with a thin skin, the FN was under the skin, and the tympanic-mastoid segment of the FN and chorda tympani extending to the stylomastoid foramen was completely open. FP episodes were associated with the unprotected FN. To prevent an attack of FP, and to self-clean the external ears, mastoid obliteration surgery was performed, and the mastoid segment of the FN was covered with a conchal cartilage graft. This case was diagnosed as congenital aplasia of the external ear canal due to the tympanic bone aplasia-mastoid bone hypoplasia, and the dehiscence of the mastoid-tympanic segment of the FN, and as a cause of recurrent FP, has never to date been identified.Öğe Cutaneous Myiasis in a Malignant Wound of the Head and Neck Region(Lippincott Williams & Wilkins, 2012) Bayindir, Tuba; Cicek, Mehmet T.; Atambay, Metin; Kizilay, AhmetMyiasis is a parasitic infestation of vital tissue of humans or other mammals by dipterous larvae. Human myiasis is a rare clinic condition but more frequently seen in tropical and subtropical areas, in patients who have poor hygiene, have bad housing conditions, are with mental retardation, or have advanced age. We report a case of myiasis in a malignant wound (squamous cell carcinoma) in the head and neck region because a few literature reports were seen in this localization. The patient's treatment was antisepsis, larval removal, and general care preventions, whereas standard treatment options or guidelines are not available.Öğe Do Comorbidities Influence Objective and Subjective Recovery Rates of Nasal Polyposis?(Lippincott Williams & Wilkins, 2010) Akarcay, Mustafa; Ekici, Nur; Miman, Murat C.; Firat, Yezdan; Bayindir, Tuba; Selimoglu, ErolObjectives: To investigate the clinical and laboratory outcomes both objectively and subjectively in nasal polyposis patients with or without comorbidity (CoM; asthma and allergy). Patients and Methods: Thirty-three nasal polyposis patients (13 women and 20 men) were included into the study. Their mean age was 39.23 +/- 9.13 years. CoM(+) and CoM(-) nasal polyposis patients were compared with each other. Evaluations contained endoscopic nasal examination, acoustic rhinometry, rhinomanometry, visual analog scale score of nasal blockage, olfactory function score, respiratory function test, skin prick tests, and paranasal sinus computed tomography. Results: Recovery was statistically significant in all observed evaluations for endoscopic and radiologic staging, nasal obstruction, and sense of smell compared with the first evaluation in all patients regardless of the subgroups. Although objective measurements of respiratory functions did not show any change, clinical improvement was detected in CoM(+) patients with a decrease of need to their antiasthmatic medical treatment. Conclusions: Results of CoM(+) patients led to no statistical difference when compared with CoM(-) subgroup. When applying predefined nasal polyposis treatment protocol, the polyp patients with CoMs do not need close follow-up compared to the patients without CoMs.Öğe Does Aluminum Cause Ototoxicity in Rats?(Aves, 2011) Selimoglu, Erol; Bayindir, Tuba; Iraz, Mustafa; Gul, Mehmet; Durgun, Yesim; Erdem, Tamer; Kalcioglu, TayyarBackground: Aluminum (Al) is a nonessential and toxic metal to which humans are frequently exposed. Except one study which revealed adverse effects of serum Al levels on the auditory functions in hemodialysis patients, there is not any other study on the effects of Al on auditory functions. Study design: Acute and chronic effects of Al on rat auditory system were investigated in that randomized controlled study. Methods: Forty five male Sprague-Dawley rats were included. Rats were divided into six groups according to the dose and route of Aluminum chloride (AlCl3): in groups A (n=7), B (n=9), and C (n=9), intraperitoneally (IP) AlCl3 was injected in doses of 1 mg/kg, 5mg/kg, and 80mg/kg, respectively; in control group (group K, n=6), saline was injected IP; in groups D (n=7) and E (n=7) oral AlCl3 was administered in doses of 5mg/kg, and 50mg/kg, respectively. OAE measurement was performed for four times in IP AlCl3 groups; before and on the 1st, 7th, and 14th days after aluminum administration. In oral group OAE measurement was performed before and on the 1st, 2nd, and 3rd months after aluminum administration. The distortion product otoacoustic emissions (DPOAEs) at 2f1-f2 were recorded and analyzed. Histological examination of the cochlea was performed. Results: DPOAE measurements of all groups before and after AlCl3 administrations were not statistically different. Histological examination revealed normal stria vascularis, spiral ganglion and organ of cord in all groups. Conclusion: Neither acute nor chronic administration of AlCl3 in aforementioned doses and routes caused neither clinical nor histological ototoxicity.Öğe The effect of adenoid hypertrophy on maxillofacial development: an objective photographic analysis(Biomed Central Ltd, 2016) Koca, Cigdem Firat; Erdem, Tamer; Bayindir, TubaBackground: Deformity in the dental arc and facial skeleton by adenoid hypertrophy due to chronic mouth breathing is a well-known process. Most of the related studies have been based on cephalometric analyses. The aim of this study is to detect the presence of skeletal deformities on the soft tissue by analyzing distances and angles on photographs. Methods: Ninety-seven children having between 25 and 100 % of adenoids, ages 4-12 years (48 boys, 49 girls), and 90 cases having 0-25 % adenoid tissue, ages 4-12 years (54 boys, 36 girls), were studied by clinical history, physical examination (including endoscopy), and standardized clinical photographs. The children and parents were asked if any of the following were present in the children: snoring, sleep apnea, daytime sleepiness, poor school performance, mouth breathing during sleep, smoking parents, and restlessness during sleep. Results: The assessment of linear and angular measurements on the clinical photographs showed, in the group having thicker adenoids compared with controls, a statistically significant increase in the distance between nasion and tip and nasion and subnasale and in the angle between Frankfort horizontal plane-gnathion-angulus mandible; there was also a statistically significant decrease in the distance between endocanthion and exocanthion and the angles between tragion-angulus mandible and gnathion and between nasion-angulus mandible and gnathion. Conclusions: The analyses showed a significant increase in the anterior face height and increase in the angle between Frankfort horizontal plane-gnathion-angulus mandible and a retropositioned and posterior-rotated mandible due to thicker adenoids.Öğe The Effect of Beta Glucan on Cisplatin Ototoxicity(Springer India, 2014) Bayindir, Tuba; Iraz, Mustafa; Kelles, Mehmet; Kaya, Serdar; Tan, Mehmet; Filiz, Aliye; Toplu, YukselThis study was undertaken to investigate the effect of betaglucan in ameliorating cisplatin ototoxicity. Rats were divided into four groups: cisplatin (C), cisplatin plus beta glucan (CB), beta glucan (B), and control (K). Distortion product otoacoustic emissions were elicited in 0th, 1st, and 5th days. For the group C differences were observed at 8,003 and 9,515 Hz between 0th and 5th days' measurements. In the group CB there were differences at frequencies of 3,996, 4,757, 5,660, and 6,726 Hz between 0th and 5th days' measurements. For the group B there were significant recovery in some frequencies. The observation of significant deterioration in terms of hearing in the group treated with cisplatin plus betaglucan may be suggested that depended on the increase of permeability and tissue conductance into the inner ear which may be caused by betaglucan. Further long-term follow-up studies by using different doses may clarify this matter.Öğe The effect of COVID-19 on nasal mucociliary clearance(Taylor & Francis Ltd, 2022) Ozturk, Ebru Ozer; Aslan, Mehmet; Bayindir, TubaBackground The impacts of coronavirus disease-2019 (COVID-19) on nasal mucociliary clearance (MCC) have shown conflicting results. Objectives The aim of this study was to determine whether COVID-19 infections affect nasal mucociliary activity using the saccharin test to measure nasal MCC time. Material and Methods This prospective comparative investigation included 25 patients with COVID-19 infection and 25 healthy controls. The nasal MCC time was assessed using the saccharin test. Saccharin test was applied to COVID-19 patients between the 10th and 20th days of COVID-19 test positivity. Patients admitted to the otolaryngology outpatient clinic with non-nasal symptoms and no history of COVID-19 infection served as the control subjects. Results Age, gender distribution, smoking, and alcohol usage, and the existence of other systemic disorders had no statistically significant differences between the groups (p = 0.25, p = 0.77, p = 1.00, p = 0.28, p = 0.54, respectively). The COVID-19 group had a mean nasal MCC time of 12.00 +/- 2.51 min, compared to 9.77 +/- 2.51 min in the control group. The nasal MCC time in the COVID-19 group was statistically significantly longer (p = 0.043). Conclusions and Significance The COVID-19 infection negatively affects mucociliary activity and causes prolongation of MCC. As the nasal defense mechanism weakens in the early period after COVID-19 infection, susceptibility to respiratory infections may occur.Öğe The effect of resveratrol on the prevention of cisplatin ototoxicity(Springer, 2012) Erdem, T.; Bayindir, Tuba; Filiz, A.; Iraz, M.; Selimoglu, E.One of the most important adverse effects of cisplatin, a chemotherapeutic agent which is widely used in the treatment of cancer patients, is hearing loss. This has primarily been associated with the loss of inner ear hairy and spiral ganglion cells due to oxidative stress. Resveratrol is known to be an antioxidant agent, which has the theoretical potential of preventing cisplatin-related ototoxicity. This experimental study was approved by Animal Ethics Committee of Inonu University (2008-20) and supported by Inonu University Scientific Research Projects Support Fund (2009-17). Thirty-four 3-month-old Wistar albino female rats weighing 210-270 g were used in the study. The animals were allocated into four groups: in cisplatin group (Group A), a single dose of 12 mg/kg cisplatin was administered intraperitoneally to 10 rats; in cisplatin + resveratrol group (Group B), a single dose of 12 mg/kg cisplatin and 10 mg/kg resveratrol were administered intraperitoneally for 5 days to 10 rats; in resveratrol group (Group C), 10 mg/kg resveratrol was administered intraperitoneally for 5 days to seven rats and in control group (Group D), resveratrol solvent (5% alcohol-95% physiological saline) was administered intraperitoneally for 5 days to seven rats. Resveratrol administration has begun 1 day before cisplatin administration in the group treated with cisplatin and resveratrol combination. Distortion product otoacoustic emission (DPOAE) (Grason Stadler, Madison, USA) measurements were performed in the same ear of all rats (right ear) under general anesthesia at baseline, 1st and 5th days after drug administration. Statistically significant distortion product amplitude reductions were found in the cisplatin group at 1,418, 2,003, 3,363, 5,660, 8,003 and 9,515 Hz frequencies. Whereas in the cisplatin + resveratrol group, statistically significant difference was found between 1st and 5th day measurements only at 3,996 Hz frequency. No significant differences were noted between the measurements either in the resveratrol or in the control groups. According to these results, cisplatin-related ototoxicity has been greatly prevented by resveratrol use.Öğe Effectiveness of MESNA on the success of cholesteatoma surgery(W B Saunders Co-Elsevier Inc, 2014) Kalcioglu, M. Tayyar; Cicek, Mehmet T.; Bayindir, Tuba; Ozdamar, Osman IlkayImportance: It is important that chronic otitis media with cholesteatoma be treated successfully in patients to protect them from having repeated surgeries with related surgical co-morbidities and hearing loss. Objective: To evaluate the effectiveness of MESNA usage on the residual cholesteatoma rates of the patients who underwent surgery due to chronic otitis media with cholesteatoma. Design: Retrospective single-institution study of a prospectively collected database. Setting: Tertiary University Hospital. Participants: Nine hundred and thirty-four patients underwent surgery due to chronic otitis media between September 2000 and March 2012 by the same surgeon. One hundred and forty-one cases out of 934 patients were selected who had cholesteatoma for the study. These randomly selected 141 cases were divided into two groups as follows: I. Forty-six cases were applied MESNA (Sodium 2-mercaptoethanesulfonate) intraoperatively, and II. Ninety-five cases were not applied MESNA intraoperatively. The cases that were followed-up at least one year were included in this study. Intervention: MESNA (Ureomitexan, MESNA, Baxter oncology, Germany) was diluted with saline (20% MESNA and 80% saline) that was applied, and then a waiting period of approximately 5 min followed to start to dissect cholesteatoma matrix. Main outcomes and measures: Residual cholesteatoma rates between intraoperative MESNA, a disulfide bond breaking chemical agent, applied and MESNA non-applied cases in the postoperative follow-up period were compared for the success of the surgery. Results: MESNA was used in 46 patients out of 141 cases intraoperatively. Twenty-four of these patients underwent CWD (canal wall down), and twenty-two patients underwent CWU (canal wall up) mastoidectomy. For the other 95 subjects, 56 patients with CW.D and 39 with CWU mastoidectomy, MESNA was not applied. Residual cholesteatoma rates were found to be significantly higher in MESNA non-applied group than MESNA applied group (p <0.05). Residual cholesteatoma rates between CWD and CWU mastoidectomy procedures were not statistically significant (p > 0.05). Conclusions and relevance: MESNA application that breaks disulfide bonds in the structure of the matrix in cholesteatoma surgery may assist the elimination of the disease, and increase surgical success by facilitating the elevation of the epithelium. Thereby, it causes a decrease in the possibility of remaining residual epithelium after surgery, which decreases the need for second-look surgery. (C) 2014 Elsevier Inc. All rights reserved.Öğe The Effects of a New Hemostatic Agent on Hearing in Rats(Aves, 2010) Kalcioglu, M. Tayyar; Bayindir, Tuba; Iraz, Mustafa; Kaya, Serdar; Can, SermetObjective: Ankaferd Blood Stopper (ABS), a standardized mixture of five plants, has been used as a hemostatic agent. Studies have shown the hemostatic effectivity of this agent that suggests a potential usage in otological surgeries. However,side effects on hearing of this agent are unknown. In this study, hearing affection of local and systemic usage of ABS was investigated by using distortion product otoacoustic emissions (DPOAEs). Materials and Methods: Thirty-two male Wistar rats were used. The animals were divided into four groups. Baseline DPOAE measurements were performed. Subsequently, intratympanic ABS administration to the firstgroup and intratympanic saline administration to the second group were performed. Intraperitoneal ABS was injected to the third group. The fourth group was not administered any intervention. Side effects of ABS on hearing were evaluated by repeated DPOAE measurements carried out before and at 1st, 7th, and 40th days following the applications. Results: On days 7 and 40; measurement parameters of DPgrams of intratympanic ABS group were found to have significantly deteriorated in some frequencies (p(0.05). The measurements of the other groups revealed no significant differences (p>0.05). Hearing loss was not observed in systemic absorption group but, determined in intratympanic application group. Conclusion: Our findings may suggest that hearing loss may be either due to ototoxic side effect of ABS, prolonged mass effect of it, or because of inflammation. Further studies with longer follow up period and histopathological examinations are needed to answer these existing questions.Öğe Effects of Covid-19 on the audio-vestibular system(W B Saunders Co-Elsevier Inc, 2021) Tan, Mehmet; Cengiz, Deniz Ugur; Demir, Ismail; Demirel, Sumeyye; Colak, Sanem Can; Karakas, Oguz; Bayindir, TubaPurpose: It was aimed to investigate the effects of COVID-19 infection on hearing and the vestibular system. Methods: Twenty-six patients whose treatment had been completed and who had no previous hearing or balance complaints were included in the study. Patients diagnosed with the disease by PCR were included in the study. Patients with at least one month of illness were included in the study. The hearing of patients was evaluated with transient evoked otoacoustic emissions (TEOAE) and pure-tone audiometry. Bedside tests, the European Evaluation of Vertigo scale (EEV), Video Head Impulse Test (vHIT), Ocular Vestibular Myogenic Evoked Potential (oVEMP), Cervical Vestibular Myogenic Evoked Potential (cVEMP) and Videonystagmography (VNG) tests were applied to evaluate the vestibular system. Results: A statistically significant difference was found between the COVID-19 positive and control groups according to the mean values of the 4000 Hz and 8000 Hz in both the right and left ears (p < 0.05). No statistically significant difference was found in the other frequencies and TEOAE. No statistically significant difference was found between the COVID-19 positive and control groups in terms of their normal or pathological VNG saccade, optokinetic and spontaneous nystagmus values (p > 0.05). The normal and pathological VNG head shake values were found to be significantly different between the COVID-19 positive and control groups (p < 0.05). Conclusion: The high frequencies in audiometry in the COVID-19 positive group were worse than those in the control group. In the vestibular system, especially in oVEMP and cVEMP, asymmetric findings were obtained in comparison to the control group, and a low gain in vHIT was shown. This study shows that the audiovestibular system of people with COVID-19 infection may be affected.Öğe EFFECTS OF GAZE POSITION ON OCULAR VESTIBULAR EVOKED MYOGENIC POTENTIAL (oVEMP)(Dokuz Eylul Univ Inst Health Sciences, 2023) Cengiz, Deniz Ugur; Demir, Ismail; Colak, Sanem Can; Demirel, Sumeyye; Karababa, Ercan; Bayindir, TubaPurpose:To compare ocular vestibular evoked myogenic potential (oVEMP) responses obtained with superomedial and oblique gaze positions. Material and Methods:The oVEMP test was applied in 59 healthy subjects at superomedial, right oblique, and left oblique gaze positions. Stimuli were presented at 110 dB nHL with a frequency of 500 Hz. oVEMP responses were recorded via electrodes placed on the lower eyelids. Results:Higher N1-P1 amplitudes were obtained in oblique gaze positions in the stimulated ear direction compared to the superomedial position (p < 0.05). The asymmetry values obtained in the superomedial gaze position were lower than those obtained in oblique gaze positions (p < 0.05). The asymmetry values obtained in the Superomedial and oblique gaze positions had no effect on the N1, P1, and N1-P1 latencies of the waves obtained from the Conclusion:Superomedial and oblique gaze positions affect oVEMP waves. In patients in whom vestibular hypofunction is suspected, it is recommended to control oVEMP responses in oblique gaze positions as well as in superomedial gaze positions in the evaluation of the residual vestibular functions.Öğe Endoscopic Removal Technique of a Huge Ethmoido-Orbital Osteoma(Lippincott Williams & Wilkins, 2009) Miman, Murat C.; Bayindir, Tuba; Akarcay, Mustafa; Erdem, Tamer; Selimoglu, ErolOsteomas are slow-growing benign tumors of the paranasal sinuses. They originate from the sinus wall and generally fills the sinus cavity. Many osteomas arc asymptomatic and diagnosed incidentally on radiographs. The well-circumscribed, dense bony appearance on radiographs is usually diagnostic. Osteomas become symptomatic when they extend to the orbit or cranium. We report a rare case of ethmoido-orbital osteoma. Case reports and a review of the literature concerning osteoma and surgical techniques are presented. Treatment is not recommended in asymptomatic osteomas. If treatment is indicated, external or endoscopic approach can be chosen. The choice of surgical approach depends on the size of the lesion, location, and the experience of the surgeon.Öğe Evaluation of the Protective Effect of Beta Glucan on Amikacin Ototoxicity Using Distortion Product Otoacoustic Emission Measurements in Rats(Korean Soc Otorhinolaryngol, 2013) Bayindir, Tuba; Filiz, Aliye; Iraz, Mustafa; Kaya, Serdar; Tan, Mehmet; Kalcioglu, Mahmut TayyarObjectives. This experimental study investigated the possible protective effect of beta glucans on amikacin ototoxicity. Methods. Thirty-eight rats with normal distortion product otoacoustic emissions (DPOAEs) were divided into four groups. Group K was the control group. Group A was injected intramuscularly (i.m.) with amikacin 600 mg/kg/day between days 1-15. Group AB was given beta glucan gavage 1 mg/kg/day on days 0-15 and given amikacin 600 mg/kg/day i.m. on days 1-15. Group B was administered only beta glucan gavage, 1 mg/kg/day, on days 0-15.The DPOAEs were elicited in different frequency regions between 2,003 and 9,515 Hz, as distortion product diagrams (DPgrams), before and after the medication was administered, in all groups, on days 1, 5, 10, and 15. Results. No significant changes in the DPgrams were observed in group K. In group A, significant deterioration was observed at the 8,003 and 9,515 Hz frequencies on day 10, and at the 3,991, 4,557, 5,660, 6,726, 8,003, and 9,515 Hz frequencies on day 15. For group AB, statistically significant deterioration was observed at the 2,824, 8,003, and 9,515 Hz frequencies on day 15. The results for group B showed a significant improvement of hearing at the 2,378, 2,824, 3,363, and 3,991 Hz frequencies on day 1, at the 3,363, 3,991, and 8,003 Hz frequencies on day 10, and at the 8,003 Hz frequency on day 15. Conclusion. This study suggests that amikacin-induced hearing loss in rats may be limited to some extent by concomitant use of beta glucan.
