Browsing by Author "Ozluoglu, Levent N."

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Clinical Interpretation of Positional Nystagmus Provoked by both Dix-Hallpike and Supine Head-Roll Tests
(2022) Hizal, Evren; Jafarov, Sabuhi; Erbek, Seyra H.; Ozluoglu, Levent N.; 35894530
BACKGROUND: Both the Dix-Hallpike test and the supine head-roll test can provoke positional nystagmus in a group of benign paroxysmal positional vertigo patients, including but not limited to those with multiple canal involvement. This study aimed to determine the incidence and interpret the clinical significance of positional nystagmus provoked by both the Dix-Hallpike and the supine head-roll tests. METHODS: The results of video-nystagmography sessions recorded in the computer database that included both the Dix-Hallpike and the supine head-roll tests were examined. RESULTS: The records belonging to 2880 video-nystagmography sessions of 2387 patients were examined. Nystagmus was detected in both the Dix-Hallpike and the supine head-roll tests of 131 (5.5%) patients. The video images belonging to 142 session records of 122 patients were accessed and further analyzed. The diagnosis was posterior canal BPPV in 9.0%, and lateral canal BPPV in 62.3%. More than one canal was involved in 3.3%, one rehabilitation maneuver was performed in 75.0%, and recurrence was observed in 7.4% of those patients. CONCLUSION: In both geotropic and apogeotropic variants of lateral canal BPPV, nystagmus can be observed during the Dix-Hallpike test in addition to the supine head-roll test. In patients with posterior canal benign paroxysmal positional vertigo, nystagmus can also be observed in the head-roll test. To reach a correct and comprehensive diagnosis and apply appropriate treatment in benign paroxysmal positional vertigo, the Dix-Hallpike test and the head-roll test should be completely performed on both sides, and the results of those tests must be interpreted concomitantly.
Cochlear Implant Failure in the Pediatric Population
(2021) Ozer, Fulya; Yavuz, Haluk; Yilmaz, Ismail; Ozluoglu, Levent N.; 0000-0003-3320-204X; 34551468; F-6315-2015
Background and Objectives: In cochlear implant (CI) surgery, the results and causes of revision and reimplantation may guide surgeons in establishing surgical protocols for revision surgery with safe audiological outcomes. The aim of this study was to review our experience in terms of etiology, surgical strategy, and hearing outcomes in pediatric patients who underwent CI removal and reimplantation. Subjects and Methods: All patients received implants of the same brand. Pre and postoperative Categories of Auditory Performance score and aided free-field pure tone audiometry thresholds were noted. In vivo integrity tests were performed for each patient and the results of ex vivo tests of each implant were obtained from manufacturer. Results: A total of 149 CIs were placed in 121 patients aged <18 years. The revision rate in children was 6.7% (10/121 children). Six patients had a history of head injury leading to a hard failure. The causes of reimplantation in others were soft failure (n=1), electrode migration (n=1), infection (n=1), and other (n=1). All patients showed better or similar postreimplantation audiological performance compared with pre-reimplantation results. Conclusions: It is very important to provide a safe school and home environment and educate the family for reducing reimplantation due to trauma. Especially for active children, psychiatric consultation should be continued postoperatively.
Congenital Cholesteatoma Together with Ossicular Chain Anomaly
(2017) Kansu, Leyla; Ozluoglu, Levent N.; 0000-0003-1707-7760; 0000-0002-2150-0237; 27272309; H-8232-2013; AAI-8020-2021
Cholesteatomas that occur under an intact tympanic membrane in the absence of prior surgical procedures or perforation are defined as congenital cholesteatomas. These entities are rarely seen, because they do not cause any major symptoms unless they touch the ossicular chain. Likewise, isolated congenital ossicular anomalies that occur independently of external ear anomalies and craniofacial dysplasia are also rarely seen. Here, we report a patient who presented with congenital cholesteatoma associated with anomalies of the ossicular chain and discuss its pathogenesis.
Facial Palsy Following Embolization of A Dural Arteriovenous Fistula
(2016) Ozluoglu, Levent N.; Koycu, A.; Jafarov, S.; Hizal, E.; Boyvat, F.; 0000-0002-7302-4199; 0000-0002-9699-6783; 0000-0002-2150-0237; 0000-0003-1290-3509; 26329900; AAI-8044-2021; A-5853-2018; F-4230-2011; AAI-8020-2021; AAF-3650-2021
Intracranial arteriovenous malformations are infrequent. Advances in endovascular treatment techniques have promoted the use of endovascular embolization in management of intracranial arteriovenous malformations. Transvenous or transarterial embolization procedures are effective options in the treatment of the arteriovenous fistulas. However, complications such as cranial nerve palsies may occur. Here, we present a case of right-sided lower motor neuron facial paralysis due to embolization of an intracranial dural arteriovenous fistula that have presented with clinical findings on the left eye. Facial functions of the patient improved from total weakness to House-Brackmann grade II, following facial nerve decompression surgery.
Middle-Ear Resonance Frequency and Eustachian Tube Function in Players of Wind Instruments
(2021) Ozer, Fulya; Ozer, Cem; Erbek, Seyra; Ozluoglu, Levent N.; 0000-0002-8453-6069; 0000-0002-6641-5300; 0000-0001-5381-6861; 34412053; AAJ-2445-2021; ABH-1785-2020; ABC-1809-2020
Introduction: The effect of the continuous forced expiration action of players of wind instruments to produce sound, on the eustachian tube functions and the middle-ear resonance frequency (RF), has not been investigated in the literature to date. The aim of this study is to evaluate eustachian tube functions and the middle-ear RF of players of wind instruments. Methods: In this prospective case-control clinical study, a study group of 28 players of wind instruments in the orchestra (28 participants, 56 ears) and a control group of 34 volunteers (34 participants, 68 ears) were included. The eustachian function of wind instrument players in a symphony orchestra was measured using an automatic eustachian tube function test in acoustic tympanometry and the RF of the middle ear was determined in multifrequency tympanometry. Results: There was a statistically significant difference among the musicians, especially in players of woodwind instruments, in terms of dysfunction of the eustachian tubes (p = 0.048). In the musicians, the pre- and postperformance RF mean values for all ears were 925 and 1,020 Hz, respectively, and these were significantly different (p = 0.004). Conclusion: This is the first study to uses multifrequency tympanometry to examine the middle-ear RF and eustachian tube function of wind instrument musicians in an orchestra. Eustachian tube dysfunction was found to be more prominent and a higher RF of the middle ear was seen after a performance, especially in players of wood wind instruments. However, the effect of these on the professional performance of players of wind instruments should be investigated in future work.
Transient Velopharyngeal Insufficiency After Calcified Stylohyoid Ligament Resection
(2020) Cam, Osman Halit; Kocdor, Pelin; Ozluoglu, Levent N.; 0000-0001-9253-1412; 0000-0002-2150-0237; 32371704; AAP-1533-2020; AAD-7236-2021; AAI-8020-2021
Elongation of the stylohyoid process or calcification of the stylohyoid ligament is known as the Eagle syndrome. Mostly, it is seen incidentally on imaging or with extreme suspicion and usually patients are asymptomatic. Surgery is the preferred method in symptomatic patients. Transcervical or transoral methods may be preferred as surgical route. A 28-year-old female patient who had formerly underwent tonsillectomy presented with throat and ear pain. A neck computed tomography was performed, and the patient was diagnosed as Eagle Syndrome. Surgery was recommended. Patient developed transient velopharyngeal insufficiency on postoperative day 4. Ventilation exercise and follow-up was recommended. Complaints of the patient decreased on the 15th day. It should be kept in mind that stylohyoid ligament may be calcified in young age group and middle age group patients with dysphagia or odynophagia, and differential diagnosis should be performed. Another issue is the condition of velofaringeal insufficiency which may occur due to the damage of the pharynx muscles by deep dissection during surgery.
Upright positioning-related reverse nystagmus in posterior canal benign paroxysmal positional vertigo and its effect on prognosis
(2020) Jafarov, Sabuhi; Hizal, Evren; Bahcecitapar, Melike; Ozluoglu, Levent N.; 0000-0002-2150-0237; 0000-0002-9699-6783; 0000-0002-7302-4199; 32597824; AAI-8020-2021; A-5853-2018; AAI-8044-2021
BACKGROUND: Positional nystagmus elicited by the Dix-Hallpike maneuver often reverses its direction as the patient is re-seated from the provoking head hanging position. The incidence of reverse nystagmus and its association with prognosis in posterior canal benign paroxysmal positional vertigo (pcBPPV) is not clear. OBJECTIVE: To determine the incidence of upright positioning-related reverse nystagmus and its association with the success of canalith repositioning (Epley) maneuver (CRM) treatment in pcBPPV. METHODS: The records of patients that had been tested with video-nystagmography in a tertiary care center, between October 2016 and March 2019, were reviewed. Data were obtained from detailed analysis of video recordings of 321 patients with typical pcBPPV. RESULTS: Reverse nystagmus was determined in 85% of the patients with pcBPPV. The number of CRMs required for treatment was lower in patients with reverse nystagmus (1.32 +/- 0.68) compared to patients without reverse nystagmus (1.81 +/- 0.98) (p < 0.001). There was not a statistically significant relationship between reverse nystagmus and recurrence (p = 0.623). CONCLUSIONS: The absence of reverse nystagmus on upright positioning during the Dix-Hallpike test predicts poor success for the CRM, as repetitive repositioning maneuvers might be required to achieve successful treatment in pcBPPV.