Browsing by Author "Kansu, Leyla"

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Benign Paroxysmal Positional Vertigo After Nonotologic Surgery: Case Series
(2015) Kansu, Leyla; Aydin, Erdinc; Gulsahi, Kamran; 25838683
Benign paroxysmal positional vertigo is one of the most common types of vertigo caused by peripheral vestibular dysfunction. Although head trauma, migraine, longterm bed rest, Menie're disease, viral labyrinthitis, and upper respiratory tract infections are believed to be predisposing factors, most cases of benign paroxysmal positional vertigo are idiopathic. Ear surgery is another cause, but after nonotologic surgery, attacks of benign paroxysmal positional vertigo are rare. We describe three cases of benign paroxysmal positional vertigo attacks after non-otologic surgery (one patient after a nasal septoplasty and two patients after dental endodontic treatment) and discuss the pathophysiological mechanismof benign paroxysmal positional vertigo seen after non-otologic surgery, its diagnosis and treatment
Benign Paroxysmal Positional Vertigo Diagnosed in a Patient with Idiopathic Cervical Dystonia
(2018) Coban, Kubra; Kansu, Leyla; Aydin, Erdinc; 0000-0002-4633-0983; 0000-0003-1707-7760; 0000-0001-6864-7378; AAJ-2032-2021; H-8232-2013; AAJ-2379-2021
Idiopathic cervical dystonia (CD) is a focal dystonia characterized by involuntary contraction of the muscles of the neck causing twisting movements and abnormal head and neck postures. Its etiology is unclear: however. intracerebral neuronal circuit pathologies are highly considered. On the contrary, benign paroxysmal positional vertigo (BPPV) is the most common peripheral vertigo diagnosed. We present a patient with CD suffering from severe vertigo who was diagnosed with BPPV. This is a very unique case representing the co-occurrence of a rare central nervous system pathology and a peripheral inner ear disease. The cause and effect relation between two pathologies is under scope. We present a 55-year-old woman with CD attended our clinic with severe vertigo and nausea. Left posterior semicircular canal BPPV (PSCC BPPV) was diagnosed. Involuntary head and neck muscle contractions caused by CD appear to have contributed to the development of BPPV in this case. However, increased neuronal activities causing CD could also have led to BPPV in the vestibular nuclear level. Further investigations are essential. Peripheral vestibular pathologies and their association with CD are not clearly determined in the literature so far. To our knowledge, there are no other cases reported regarding this co-occurrence.
Benign Paroxysmal Positional Vertigo Following Electroconvulsive Therapy
(2019) Kansu, Leyla
Patients with severe major depression most commonly undergo electroconvulsive therapy (ECT). Although this procedure is usually safe and the complication rates are very low, some side-effects and medical complications are observed. The reported adverse effects are generally minor in severity, and vertigo is one of these complications. We presented a case of benign paroxysmal positional vertigo (BPPV) occurring after ECT and aimed to discuss the pathophysiological mechanism of this condition. To the best of our knowledge, there are no other case reports regarding the co-occurrence.
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.
High riding jugular bulb: Is it an etiological factor for benign paroxysmal positional vertigo?
(2021) Çoban, Kuebra; Kansu, Leyla; Ergun, Tarkan; Aydin, Erdinc
Introduction: High jugular bulb (HJB) is usually discovered incidentally; however, it may interfere with inner ear structures such as vestibular aqueduct (VA), facial nerve, and the posterior semicircular canal (PSCC). Objective: The aim is to investigate the incidence of HJB in benign paroxysmal positional vertigo patients with PSCC involvement (PSCC-BPPV). Materials and Methods: The study group included 53 consecutive, PSCC-BPPV patients, diagnosed in our clinic. Following the diagnosis, their high resolution computed temporal bone tomography were performed. The control group consisted of 90 patients, who attended to our clinic for various complaints, and to whom high resolution computed tomography of the temporal bone was conducted. Results: The incidence of HJB in the study group was 41.5% (n = 22). The incidence of ipsilateral HJB in this group was 28.3% (n = 15). The incidence of HJB in the control group was 11.1% (n = 10) (P < 0.001). The closest distance between HJB and PSCC canal in the control and study groups was 1.61 +/- 0.74 mm and 1.17 +/- 0.37 mm, respectively (P = 0.098). Conclusion: The HJB is significantly more frequent in PSCC-BPPV patients. Furthermore, the rate of incidence of HJB in the ipsilateral ears of these patients is significantly higher. Venous hypertension or the turbulence may cause strong pulsations, which influence the detachment of the otoconia into the PSCC.
Post-traumatic Delayed Peripheral Facial Palsy
(2018) Kansu, Leyla
Peripheral facial palsy in children is very rare in comparison to adults. The most common cause is idiopathic. Another rare cause of peripheral facial palsy in children is trauma. It occurs after head trauma, mostly due to temporal bone fracture as an early onset paralysis after trauma. Early onset facial palsy is usually due to direct damage to the facial nerve whereas there is some controversy about the etiology of late onset facial palsy. In this article, a child patient whose peripheral facial palsy developed six days after a head injury is presented, and the etiopathogenesis and the treatment of delayed traumatic facial palsy after temporal bone fracture is discussed.
Relation of Actinomyces with Tonsillar Hypertrophy and Antibiotic Use
(2017) Kansu, Leyla; 0000-0003-1707-7760; 29392046; H-8232-2013
Objective: This study aimed to investigate the incidence of actinomyces in tonsillar tissues of patients undergoing tonsillectomy and to determine the association among tonsillar volume, preoperative antibiotic use, and presence of actinomyces in tonsil tissues. Methods: In this study, 142 patients who underwent tonsillectomy in last four years were included. Of the total patients, 97 (66.9%) were children and 47 (33.1%) were adults. The patients' age, sex, preoperative antibiotic use, tonsillar volume, and presence of actinomyces in tonsillar tissues were recorded. Results: Actinomyces was identified in tonsillar tissues of 16 (16.4%) pediatric and 21 (44.6%) adult patients. Of all pediatric patients positive for actinomyces, 13 were males and three were females whereas of all adult patients positive for actinomyces, 14 were males and seven were females. Tonsillar tissue volumes in both pediatric and adult patients positive for actinomyces were statistically higher than the actinomyces negative ones. Antibiotic use was higher and the incidence of actinomyces was lower in pediatric patients than in adult patients positive for actinomyces. Conclusion: Our study results revealed that actinomyces was prominent in adult patients with tonsillar hypertrophy. In addition, the frequent use of antibiotic decreased the incidence of actinomyces in tonsillar tissues.
The relationship between superior attachment of the uncinate process of the ethmoid and varying paranasal sinus anatomy: an analysis using computerised tomography
(2019) Kansu, Leyla
Objective: The purpose of this research was to examine how attachment of the uncinate process superiorly (SAUP) relates to possession of an agger nasi cell, pneumatisation of the middle turbinate and the measurements of the base of the skull anteriorly. The study was carried out using computerised tomography (CT). Methods: The study involved CT imaging captured from 727 individuals with persistent sinusitis- 1454 images in total, featuring coronas section of the paranasal sinus. The frequency of SAUP, existence of an agger nasi cell, pneumatisation of the middle turbinate and how high the lamella measured laterally, were all noted. Landsberg and Friedman's classification scheme for SAUP was utilised. Statistical analysis used the chisquared test. Results: In 1.65% of cases, SAUP was not identifiable. With regard to class of SAUP, the most frequent was type 2, then, in descending order of frequency, types 1, 4, 3, 5 and 6. The frequencies noted were 27.6%, 19.8%, 15.4%, 14.5%, 12.0% and 9.0%, respectively. An agger nasi cell was visualised in 894 images (61.07%). There was pneumatisation of the middle turbinate in 395 images (27.17%). The lamina cribrosa measured 5.58mm on average. Conclusion: There were significant correlations between the type of SAUP and the existence of agger nasi cells or of concha bullosa. However, the type of SAUP was not statistically significant in predicting the height of the lamina cribrosa.
Sex differences in adult craniofacial parameters
(2015) Avci, Suat; Ergun, Tarkan; Aydin, Erdinc; Kansu, Leyla; 25935592
To compare normal male and female craniofacial parameters in adults and evaluate associations of sex and intercochlear distance with other craniofacial parameters. In 60 normal adults (30 men and 30 women) who had no otitis media, craniofacial parameters were measured retrospectively on two-dimensional reformatted computed tomography scans. Compared with women, men had significantly greater mean osseous auditory tube length, cartilaginous auditory tube length, mastoid length, intercochlear distance, sella to posterior nasal spine distance, sella to basion distance, and nasopharynx sagittal area. The intercochlear distance was significantly correlated with mastoid depth, midpoint of the pharyngeal opening distance, sella to nasion distance, and nasopharynx sagittal area and inversely with angle of the auditory tube. Most men and women had Korner septum present, and mean thickness of Korner septum was significantly greater in men than women. Some craniofacial parameters, especially vertical parameters, differ with sex. These differences begin in childhood and continue in adulthood. Sex must be considered when planning a craniofacial morphologic study, and results of a craniofacial morphologic study should be evaluated with caution when there is no sex matching of the patient and control groups.
Shrinkage of Nasal Mucosa and Cartilage During Formalin Fixation
(2017) Kansu, Leyla; Aydin, Erdinc; Akkaya, Hampar; Avci, Suat; Akalin, Nalan; 0000-0003-1707-7760; 0000-0001-6864-7378; 0000-0003-2155-8014; 0000-0002-7070-6901; 28552840; H-8232-2013; AAJ-2379-2021; ABG-2028-2020; O-3636-2018
Background: After resection, specimens are subjected to formalin fixation during histological processing. This procedure can result in tissue shrinkage, with the amount of shrinkage related to tissue composition and tissue type. Aims: To evaluate the shrinkage of nasal mucosa and cartilage tissue and compare differences in shrinkage after resection, after formalin fixation, and during microscopic examination to understand differences in the rate of shrinkage of different tissue types. Study Design: Animal experimentation. Methods: Fresh nasal septa were excised from sheep (10 mm diameter in 40 sheep and 20 mm diameter in 40 sheep). The mucosa was separated from one side of the cartilage, with the contralateral mucosa remaining attached to the cartilage. Specimen diameters were measured in situ, after resection, after fixation for 6 or 24 hours (10% formalin), and during microscopic examination. Results: There were no differences between the in situ and after resection diameters of any tissue components (free mucosa, mucosa attached to cartilage, and cartilage) of all nasal specimens (10-or 20-mm diameter and 6or 24-hour fixation). However, significant shrinkage occurred between resection and after-fixation. Regarding tissue specimens that were fixed for different durations (6 or 24 hours), we observed a significantly smaller mean tissue diameter in specimens fixed for 24 hours versus those fixed for 6 hours for mucosa attached to cartilage (in the 10-mm diameter after-fixation samples), free mucosa (in the 20-mm diameter after-fixation samples), mucosa attached to cartilage (in the 20-mm diameter after-fixation and microscopic measurement samples), and cartilage (in the 20-mm diameter after-fixation samples). Tissue shrinkage was greatest in free mucosal tissue and least in cartilage. Conclusion: These results should be considered when evaluating patients undergoing surgical procedures for nasal cavity and paranasal sinus malignancies. Surgical margins should be measured before fixation or evaluated if possible before fixation and shrinkage.