Leyla Kansu
Başkent University
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Featured researches published by Leyla Kansu.
Acta Oto-laryngologica | 2010
Leyla Kansu; Suat Avci; Ismail Yilmaz; Levent N. Ozluoglu
Abstract Conclusions: Recurrence of posterior canal benign paroxysmal positional vertigo (PC-BPPV) developed in one-third of patients when followed for an average of 5 years from diagnosis. History of head trauma and Ménières disease contributed significantly to recurrence (p < 0.05). History of head trauma as an etiologic cause was more frequent in patients with recurrence of PC-BPPV. Objectives: To estimate recurrence in the long-term follow-up of patients with PC-BPPV after successful canalith repositioning maneuvers, and to determine which factors contribute to recurrence. Methods: The charts of 118 patients with PC-BPPV were reviewed. Data of patients were recorded from the initial evaluation and treatment. Follow-up was performed at mean of 64 ± 7.7 months after the initial phase. The Dix-Hallpike maneuver was performed for diagnosis, and all patients were treated by the canalith repositioning maneuver, which was repeated every 3 days until the patients were symptom-free or results of the Dix-Hallpike maneuver were negative. Results: At diagnosis, the most common etiology was idiopathic in 55 patients (46.6%). Recurrence occurred in 39 of 118 patients (33.1%). Recurrence occurred within the first 2 years in 21 of the 39 patients (53.8%). History of head trauma was a more frequent finding in patients who developed recurrence (12 of 39, 30.8%).
International Journal of Pediatric Otorhinolaryngology | 2012
Leyla Kansu; Ismail Yilmaz
INTRODUCTION Approximately 10% of patients with peripheral facial nerve palsy are children. Facial nerve palsy is usually idiopathic. An uncommon cause is herpes zoster oticus (Ramsay Hunt syndrome). This syndrome usually affects adults and is rare in children. METHODS We reviewed the literature and describe the cause, clinical manifestations, and treatment of Ramsay Hunt syndrome. We also report a case of the syndrome in a 12-year-old boy. CONCLUSION Ramsay Hunt syndrome is characterized by peripheral facial paralysis associated with herpetic eruption on the auricula and external ear, and by vestibulocochlear dysfunction. It occurs by reactivation of latent varicella-zoster virus (VZV) in the geniculate ganglion, affecting the seventh and eighth cranial nerves. The diagnosis is based on history and physical findings. Treatment of Ramsay Hunt syndrome uses a combination of high-dose corticosteroids and acyclovir. Although the prognosis is better in children than in adults, it is not good enough.
Auris Nasus Larynx | 2009
Leyla Kansu; Erdinc Aydin; Suat Avci; Ali Kal; Sansal Gedik
OBJECTIVE The goals of this study were to evaluate the long-term results of endoscopic endonasal dacryocystorhinostomy (DCR) with or without a posterior mucosal flap and to compare the surgical success rates of that procedure in patients with a nasolacrimal duct obstruction. PATIENTS AND METHODS We retrospectively investigated the results of 78 endoscopic endonasal DCRs performed at the Baskent University, Department of Otolaryngology between December 2000 and March 2007 on 74 patients with a lacrimal obstruction. The patients were divided into two groups. During surgery, the posterior mucosal flap was preserved in 27 patients (group A) and removed in 47 patients (group B). All patients underwent intubation with a silicone tube at the conclusion of surgery. The silicone tube was removed within 6 months after surgery. The mean follow-up period was 36 months (range, 2-78 months). The results obtained were then compared. RESULTS Granulation tissue and synechia developed between the lateral nasal wall and the middle turbinate in one patient in group A (revision surgery was not required). In group B, granulation tissue at the rhinostomy opening was found in seven patients, and in four of those subjects, the granulation tissue obstructed the neo-ostium. These four patients underwent a second operation. In group B, synechia was noted between the middle turbinate and the lateral nasal wall in two of 47 patients. In group A, the procedure was successful for all patients except one in whom granulation tissue developed, and in group B, the surgical success rate was 88.3%. CONCLUSION In endoscopic endonasal DCR, the closure of bare bone with a posteriorly based nasal mucosal flap that creates an anastomosis between the lacrimal sac mucosa and the nasal mucosa decreases the formation of granulation tissue. But, there is no significant difference of success rate between two groups.
European Archives of Oto-rhino-laryngology | 2010
Leyla Kansu; Hakan Akman; Sina Uckan
For the closure of oroantral fistula, many techniques have been described. There are advantages and disadvantages of all these techniques. We present a technique in which nasoseptal cartilage graft is used for the closure of the oroantral communication.
Journal of Maxillofacial and Oral Surgery | 2015
Leyla Kansu; Erdinc Aydin; Kamran Gulsahi
Benign paroxysmal positional vertigo is one of the most common types of vertigo caused by peripheral vestibular dysfunction. Although head trauma, migraine, long-term bed rest, Ménière 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 non-otologic 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 mechanism of benign paroxysmal positional vertigo seen after non-otologic surgery, its diagnosis and treatment.
Clinical Anatomy | 2010
Suat Avci; Tarkan Ergun; Erdinc Aydin; Leyla Kansu
Few authors have studied differences in craniofacial morphology of adults with chronic otitis media (COM). We sought to compare the craniofacial measurements of patients with COM with otherwise healthy adults. The study group included 120 adult patients. The control group had 30 men and 30 women without evidence of otitis media; a COM group consisted of 30 men and 30 women with COM. Craniofacial measurements were assessed retrospectively using a two‐dimensional reformatted CT method. Multiple linear (bony and cartilaginous auditory tube length, size of the mastoid, height of the jugular bulbus, intercochlear distance, bitemporal distance, distance between pharyngeal orifices, and some cephalometric cranial base distances), angular (auditory tube angle, cranial base angle), and area (axial and sagittal nasopharynx size) measurements were performed. In addition, petrosquamosal (Körners) septum prevalence and size were evaluated. No statistically significant differences were found regarding craniofacial variables except mastoid size (mastoid depth and length). None of the craniofacial parameters showed significant differences between adults with COM and adults without evidence of otitis media, when age, sex, and race were considered. No statistically significant differences were found when mastoid size was compared with unilateral and bilateral COM. No statistically significant difference was found between mastoid size of the intact side and involved side of the unilateral patients with COM. Patients with unilateral and bilateral COM may be in the same group, genetically or environmentally, as far as mastoid size is concerned. Small mastoid size correlates with COM, but development of clinical disease should be under the control of different factors. Clin. Anat. 2010. 23:374–385,
Balkan Medical Journal | 2017
Leyla Kansu; Erdinc Aydin; Hampar Akkaya; Suat Avci; Nalan Akalın
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 6- or 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.
Surgical and Radiologic Anatomy | 2015
Suat Avci; Tarkan Ergun; Erdinc Aydin; Leyla Kansu
PurposeTo compare normal male and female craniofacial parameters in adults and evaluate associations of sex and intercochlear distance with other craniofacial parameters.MethodsIn 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.ResultsCompared 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 Körner septum present, and mean thickness of Körner septum was significantly greater in men than women.ConclusionsSome 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.
Journal of Oral and Maxillofacial Surgery | 2013
Leyla Kansu; Ismail Yilmaz
A 66-year-old man presented with impaired balance, tinnitus, sensation of blockage, and hearing loss in his left ear, which developed after dental treatment for dental pain 4 days previously. Treatment of the carious left upper second molar tooth had included pulp extirpation, canal expansion, and tooth filling under local anesthesia with articaine and epinephrine. Impaired balance decreased spontaneously within 3 days of dental treatment, but tinnitus and hearing loss persisted. Pure tone audiogram showed profound sensorineural hearing loss in the left ear, with a downslope from 40 to 100 dB, and an abnormal speech discrimination score (50%). Treatment included intravenous prednisolone, intratympanic dexamethasone, and oral betahistine and trimetazidine. The patient had improved hearing and resolution of tinnitus. Sudden hearing loss is rare after dental treatment, and awareness of this complication may prompt early referral for treatment and may improve recovery and prognosis.
European Archives of Oto-rhino-laryngology | 2017
Leyla Kansu; Levent N. Ozluoglu
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.