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Dive into the research topics where Münir Demir Bajin is active.

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Featured researches published by Münir Demir Bajin.


Archives of Otolaryngology-head & Neck Surgery | 2013

Comparison of voice and swallowing parameters after endoscopic total and partial arytenoidectomy for bilateral abductor vocal fold paralysis: a randomized trial.

Taner Yılmaz; Nilda Süslü; Gamze Atay; Serdar Özer; Rıza Önder Günaydın; Münir Demir Bajin

IMPORTANCE Total arytenoidectomy is claimed to increase risk of aspiration and cause more voice loss than other operations performed for bilateral abductor vocal fold paralysis (BVFP). However, objective evidence for such a conclusion is lacking. There is no study comparing swallowing and voice after total and partial arytenoidectomy. OBJECTIVE To compare voice and swallowing parameters after endoscopic total and partial arytenoidectomy for BVFP. DESIGN, SETTING, AND PARTICIPANTS In this prospective, randomized, double-blind, case-control study conducted at a tertiary referral university, the study population comprised 20 patients with BVFP. INTERVENTIONS Endoscopic total and partial arytenoidectomy. MAIN OUTCOMES AND MEASURES Decannulation, duration of operation, Voice Handicap Index, acoustic and aerodynamic analysis, postoperative breathing ability, subjective comparison of preoperative and postoperative voice, speech intensity, and functional outcome swallowing scale. RESULTS Median duration of partial and total arytenoidectomies were 59 and 49 minutes, respectively. This difference was statistically significant (P = .04). Comparisons of preoperative and postoperative Voice Handicap Index, acoustic and aerodynamic measures, postoperative breathing ability, subjective comparison of preoperative and postoperative voice, speech intensity, and functional outcome swallowing scale were not statistically significantly different between both groups. CONCLUSIONS AND RELEVANCE Endoscopic total and partial arytenoidectomy are very successful static surgical options for BVFP. Partial takes longer than total arytenoidectomy. They both provide a comfortable airway, acceptable voice, and acceptable deglutition. It may be a sound practice to perform partial arytenoidectomy initially for primary BVFP cases and reserve total arytenoidectomy for revision cases. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT01824849.


Laryngoscope | 2010

The effects on cardiac functions and arterial blood gases of totally occluding nasal packs and nasal packs with airway.

Ehab Zeyyan; Münir Demir Bajin; Kudret Aytemir; Taner Yılmaz

To evaluate the effects on cardiac functions and blood arterial gases of totally occluding nasal packs and nasal packs with airway.


Archives of Otolaryngology-head & Neck Surgery | 2013

Recurrent Contact Granuloma Experience With Excision and Botulinum Toxin Injection

Taner Yılmaz; Nilda Süslü; Gamze Atay; Serdar Özer; Rıza Önder Günaydın; Münir Demir Bajin

IMPORTANCE Contact granuloma is a difficult-to-treat laryngeal disorder associated with vocal abuse, habitual throat clearing, and laryngopharyngeal reflux. It has a high propensity for persistence and recurrence despite many treatment alternatives. OBJECTIVE To present our experience with recurrent contact granuloma treated with microlaryngoscopic excision and botulinum toxin injection. DESIGN Case series. The follow-up period had a mean (range) of 41 (11-88) months. SETTING Tertiary referral university clinic. PARTICIPANTS Twenty patients with recurrent, grade 3 and grade 4 contact granuloma whose lesion was excised at least once after failure of conservative treatments. INTERVENTIONS Microlaryngoscopic excision and botulinum toxin type A injection into the region of the bilateral thyroarytenoid and lateral cricoarytenoid muscles. MAIN OUTCOMES AND MEASURES Disappearance of contact granuloma. RESULTS Seventeen patients were cured of their contact granuloma. Three patients experienced recurrences: 2 received botulinum toxin injection only as outpatients and recovered. The other patient required reexcision and reinjection under general anesthesia. These 3 patients were free of granuloma at their last follow-up. CONCLUSIONS AND RELEVANCE After failed conservative treatment, microlaryngoscopic excision and botulinum toxin type A injection is successful in the treatment of recurrent contact granuloma. Removing recurrent granulomas can result in a low recurrence rate if botulinum toxin type A is added at the time of removal.


European Archives of Oto-rhino-laryngology | 2014

Histopathological changes in nasal mucosa with nasal septum deviation

Tawakir Kamani; Taner Yılmaz; Selçuk Sürücü; Münir Demir Bajin; Rıza Önder Günaydın; Oğuz Kuşçu

Histopathological changes in septal and nasal mucosa of patients with nasal septum deviation are not well known. Biopsies of septal and lateral nasal mucosae from both sides of nose were obtained from 20 patients undergoing septoplasty and control group of 10 patients undergoing head and neck surgery. Histopathological changes including lymphocytic infiltration and squamous metaplasia were compared. This study determined significantly higher rate of squamous metaplasia and lymphocytic infiltration in septal mucosa opposite the deviation compared to control group. Furthermore, there was a significantly higher rate of lymphocytic infiltration in the lateral nasal wall mucosa opposite the deviation when compared to control group. Increased lymphocytic infiltration and squamous metaplasia are observed on both sides of nasal mucosa; however, they are more severe on the side opposite the deviation. Septal deviation predisposes to chronic mucosal inflammation and squamous metaplasia, both of which may render patients susceptible to chronic rhinosinusitis.


Acta Oto-laryngologica | 2015

The effect of midline crossing of lateral supraglottic cancer on contralateral cervical lymph node metastasis

Taner Yılmaz; Nilda Süslü; Gamze Atay; Rıza Önder Günaydın; Münir Demir Bajin; Serdar Özer

Abstract Conclusion: The degree of midline crossing of lateral supraglottic cancer does not significantly change its rate of contralateral cervical metastasis. The rate of occult metastasis is too high to take the risk of contralateral regional recurrence. We support routine bilateral neck dissection even in lateral supraglottic cancers with no or minimal midline crossing. Objectives: Data on the rate of contralateral cervical metastasis of laterally located supraglottic cancer, the effect of its degree of midline crossing on contralateral cervical metastasis, and its treatment are still controversial. Methods: This was a retrospective cohort, chart review involving 305 surgically treated patients with T1–3 squamous cell carcinoma of the supraglottic larynx. In all, 184 patients had bilateral neck dissection; 86 N0 contralateral necks were followed up. Thirty-five patients who needed postoperative radiation therapy because of the primary tumor or ipsilateral neck dissection specimen also received radiation therapy to the contralateral neck. The degree of midline crossing at the epiglottis was measured on a laryngectomy specimen with a ruler and expressed as ‘no,’ ‘<5 mm’ or ‘≥5 mm.’ Results: The rates of occult and overall contralateral metastasis in our series were 16% and 28%, respectively. There was no statistically significant difference between contralateral neck metastasis and recurrence rates in the neck dissection, follow-up, and irradiation groups according to the degree of midline crossing.


Cochlear Implants International | 2016

Consensus statement: Long-term results of ABI in children with complex inner ear malformations and decision making between CI and ABI

Levent Sennaroglu; Vittorio Colletti; Thomas Lenarz; Manuel Manrique; Roland Laszig; Helge Rask-Andersen; Nebil Göksu; Erwin Offeciers; Shakeel Saeed; Robert Behr; Yildirim A. Bayazit; J. W. Casselman; Paul R. Kileny; Daniel J. Lee; Robert V. Shannon; Mohan Kameswaran; Abdulrahman Hagr; Andrzej Zarowski; Mark S. Schwartz; Burcak Bilginer; Ameet Kishore; Gonca Sennaroglu; Esra Yucel; Sarp Sarac; Ahmet Atas; Lilian Colletti; Martin O'Driscoll; In Seok Moon; Lutz Gärtner; Alicia Huarte

Consensus statement : Long-term results of ABI in children with complex inner ear malformations and decision making between CI and ABI


International Journal of Pediatric Otorhinolaryngology | 2014

Endolaryngeal dilatation versus laryngotracheal reconstruction in the primary management of subglottic stenosis

Rıza Önder Günaydın; Nilda Süslü; Münir Demir Bajin; Oğuz Kuşçu; Taner Yılmaz; Ömer Faruk Ünal; Umut Akyol

OBJECTIVES The scope of the study is to compare endolaryngeal dilatations (ED) with laryngotracheal reconstruction with cartilage grafting (LTRCG) in terms of restenosis. METHODS Pediatric subglottic stenosis patients treated in Hacettepe University, between 2002 and 2012 were retrospectively evaluated. Patients who had ED or LTRCG as primary management were included in the study. EDs were grouped into bronchoscopic dilatation (BD), laser incision and balloon dilatation (LBD) and cold knife incision and balloon dilatation (CKBD). The groups were evaluated in terms of restenosis and decannulation rates. RESULTS There were 35 patients (9 females, 26 males; mean age 4.42). LTRCG was performed in 16 patients (9 anterior and 7 anterior and posterior grafts). EDs were performed in 19 patients with 6 CKBDs, 7 LBDs and 6 BDs. There were 3 grade II, 13 grade III cases in the LTRCG group while 4 grade I, 6 grade II, 8 grade 3 and 1 grade 4 in the ED group. Overall decannulation rate was 97% (34/35) in all patients. Restenosis was higher in the ED group (63.2%) than the LTRCG group (31.3%) with rates of CKBD 16.7% (1/6), LBD 71.4% (5/7) and BD 100% (6/6). Restenosis rates were found to be increasing with higher grades (grade I-25%, grade II-66%, grade III-85%). CONCLUSION ED may need more repetitive interventions than LTRCG due to restenosis. Less restenosis might be observed when balloon is used for dilatation and cold knife for mucosal incisions.


Balkan Medical Journal | 2017

Classification and Current Management of Inner Ear Malformations

Levent Sennaroglu; Münir Demir Bajin

Morphologically congenital sensorineural hearing loss can be investigated under two categories. The majority of congenital hearing loss causes (80%) are membranous malformations. Here, the pathology involves inner ear hair cells. There is no gross bony abnormality and, therefore, in these cases high-resolution computerized tomography and magnetic resonance imaging of the temporal bone reveal normal findings. The remaining 20% have various malformations involving the bony labyrinth and, therefore, can be radiologically demonstrated by computerized tomography and magnetic resonance imaging. The latter group involves surgical challenges as well as problems in decision-making. Some cases may be managed by a hearing aid, others need cochlear implantation, and some cases are candidates for an auditory brainstem implantation (ABI). During cochlear implantation, there may be facial nerve abnormalities, cerebrospinal fluid leakage, electrode misplacement or difficulty in finding the cochlea itself. During surgery for inner ear malformations, the surgeon must be ready to modify the surgical approach or choose special electrodes for surgery. In the present review article, inner ear malformations are classified according to the differences observed in the cochlea. Hearing and language outcomes after various implantation methods are closely related to the status of the cochlear nerve, and a practical classification of the cochlear nerve deficiency is also provided.


Journal of Laryngology and Otology | 2014

New laryngoscope for endoscopic arytenoidectomies

Taner Yılmaz; Nilda Süslü; Münir Demir Bajin; Rıza Önder Günaydın; Serdar Özer; Gamze Atay

OBJECTIVE During an endoscopic arytenoidectomy, an intubation tube must be elevated anteriorly with the laryngoscope to ensure an adequate surgical field. This paper describes a new laryngoscope that has a canal along the outer wall of the body and a ridge which runs along the canal. METHOD Ten patients underwent endoscopic total arytenoidectomy using this new laryngoscope and 10 patients underwent the same operation using a regular laryngoscope. RESULTS The duration of all operations ranged between 25 and 65 minutes, with a median duration of 42.5 minutes. The median duration with the new laryngoscope was 39 minutes, and that with the regular laryngoscope was 49 minutes; this difference was statistically significant (p < 0.05). CONCLUSION This new laryngoscope shortened the duration of the endoscopic arytenoidectomy and facilitated the procedure by enlarging the surgical field. This new laryngoscope may be a beneficial surgical instrument for posterior endoscopic laryngeal operations.


International Journal of Pediatric Otorhinolaryngology | 2014

Oval window atresia: A novel surgical approach and pathognomonic radiological finding

Levent Sennaroglu; Münir Demir Bajin; Gamze Atay; Rıza Önder Günaydın; Burhanettin Gönüldaş; Merve Özbal Batuk; Burçe Özgen Mocan; Gonca Sennaroglu

OBJECTIVES The facial nerve usually occupies the oval window area in patients with oval window atresia. During exploration, if the facial nerve is discovered to lie in the oval window area, this is usually regarded as a contraindication for further surgical intervention. The aim of the present paper is to demonstrate the preoperative pathognomonic radiological sign and describe a new surgical approach for this difficult situation. METHODS 3 patients and 4 ears were operated due to conductive hearing loss by the same surgeon in a tertiary referral center. Their clinical presentation, radiological findings, surgical findings and final outcomes were evaluated and correlated. RESULTS Surgical findings were identical in all 4 ears: facial nerve was running over the oval window and tympanic portion was completely dehiscent. Incus long arm was medially displaced due to abnormal development of the stapes suprastructure. In each ear a successful vestibulotomy and teflon piston placement was achieved. Preoperative mean air-bone gap of 47.5dB was improved to 21.5dB. There were no complications. CONCLUSION Oval window atresia is a rare middle ear anomaly usually regarded as a contraindication for surgical intervention. In this study we present a novel surgical approach with succesful results. However the best approach is to inform the family by showing the nerve on tomography, showing the operation video, informing the family about the sensorineural hearing loss and letting the family choose the treatment option.

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