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Dive into the research topics where Ismet Aslan is active.

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Featured researches published by Ismet Aslan.


Otolaryngology-Head and Neck Surgery | 2002

Does the addition of hyperbaric oxygen therapy to the conventional treatment modalities influence the outcome of sudden deafness

Ismet Aslan; Cagatay Oysu; Bayram Veyseller; Nermin Baserer

OBJECTIVE : To investigate the therapeutic effects of the addition of hyperbaric oxygen (HBO) therapy to the conventional therapies in sudden deafness (SD) and to investigate the influence of patient age on the effectiveness of HBO therapy. STUDY DESIGN AND SETTING : We undertook a retrospective review of 50 cases of SD treated at a tertiary university hospital. Twenty-five patients (group 1) were treated with betahistine hydrochloride, prednisone, and daily stellate ganglion block. A second group (group 2) of 25 patients received the same basic treatment with the addition of HBO therapy. RESULTS : The mean hearing gain was 20.0 dB in group 1 and 37.9 dB in group 2 (P < 0.05). In group 2 patients, the mean gains were 51.4 and 23.3 dB for those younger and older than 50 years (P < 0.05) and 48.9 and 14.5 dB for those younger and older than 60 years (P < 0.001), respectively. In patients older than 60 years, the mean gains were 14.5 and 14.4 dB in group 2 and group 1, respectively (P > 0.05). CONCLUSIONS : The addition of HBO therapy to the conventional treatment significantly improves the outcome of SD, especially in patients younger than 50 years. Additional HBO therapy provides limited benefit in patients older than 50 years and no benefit in patients older than 60 years.


International Journal of Pediatric Otorhinolaryngology | 2001

Temporal bone imaging findings in Waardenburg's syndrome.

Cagatay Oysu; Aslihan Oysu; Ismet Aslan; Mehmet Tinaz

OBJECTIVE (a) To report computed tomography findings of eight new cases with Waardenburgs syndrome (WS) type I and review reported temporal bone radiographic and histopathological findings in WS with hearing loss; (b) To determine the frequency of inner ear pathologies that may contraindicate cochlear implantation. METHODS A review of 1166 pediatric patients with sensorineural hearing loss revealed 12 cases (1%) with WS, whose family screenings disclosed additional 12 subjects with the same disorder. Among these 24 cases, eight had WS type I and were subjected to computed tomography scanning of temporal bone. Imaging findings of 28 cases reported previously in English literature were evaluated together with our eight patients. RESULTS Malformation of the inner ear was found in none of the nine WS type I cases evaluated here, while the frequency of internal acoustic canal malformation was 11%. Regardless of the subtypes of the syndrome, 6 of 36 cases (17%) had radiological abnormality of the inner ear. Malformation and/or absence of the semicircular canals were the most common congenital abnormality of the inner ear. Hypoplasia of the cochlea was present in 3 of 36 cases (8%). CONCLUSIONS Abnormality of bony labyrinth in WS with congenital deafness is not a frequent finding, particularly in WS type I. Therefore, the otologist and audiologist must keep in mind that most of these cases are suitable for cochlear implantation regarding inner ear anatomy.


Annals of Otology, Rhinology, and Laryngology | 2002

Incidence of Cochlear Involvement in Hyperbilirubinemic Deafness

Cagatay Oysu; Arif Ulubil; Ismet Aslan; Nermin Baserer

Neonatal hyperbilirubinemia remains an important cause of childhood deafness, especially in developing countries. After neonatal hyperbilirubinemia, the auditory neural pathways, cochlea, or both may be affected. In this study, we aimed to determine the incidence of cochlear impairment and the appropriate means of hearing screening in hyperbilirubinemic neonates. A retrospective review of 1,032 pediatric patients with hearing loss revealed 67 cases (6.5%) of severe hyperbilirubinemia in the neonatal period. Thirty of these patients had neonatal hyperbilirubinemia as the single identifiable risk factor for hearing loss. In 26 of 30 cases (87%), otoacoustic emissions (OAEs) were absent, whereas in the remaining 4 cases (13%), robust emissions were detected despite an absent auditory brain stem response (ABR). Auditory screening of newborns with jaundice by OAEs possesses a significant risk of undiagnosed deafness. On the other hand, if the ABR is used as the single means of screening, auditory neuropathic conditions will probably be underlooked. Therefore, we recommend dual screening of hearing by ABR and OAEs in hyperbilirubinemic newborns.


International Journal of Pediatric Otorhinolaryngology | 1998

Sudden total bilateral deafness due to asymptomatic mumps infection

Murat Ünal; Sami Katircioglu; M Can Karatay; Yusufhan Suoglu; Burak Erdamar; Ismet Aslan

Mumps is the most common cause of unilateral acquired sensorineural hearing loss in children. Although it usually affects the salivary glands. the inner ear may be involved. Deafness is usually unilateral, sudden in onset, profound and permanent. Bilateral total sensorineural hearing loss had been rarely reported in English literature. We present a case of total deafness due to asymptomatic mumps infection.


Oral Oncology | 2011

Induction chemotherapy with docetaxel and cisplatin is highly effective for locally advanced nasopharyngeal carcinoma

Meltem Ekenel; Serkan Keskin; Mert Basaran; Canan Ozdemir; Rasim Meral; Musa Altun; Ismet Aslan; Sevil Bavbek

Radiotherapy (RT) with concomitant chemotherapy (CT) has improved the therapeutic outcome of patients with locally advanced nasopharyngeal carcinoma (LANC). However, the importance of induction CT before definitive therapy is still undefined. Patients (n=59) who had LANC were included in this retrospective study. They received induction CT consisting of cisplatin and docetaxel followed by definitive RT with cisplatin. The median age was 49 years (18-68). All patients were of stages II (15%), III (63%) and IV (22%). Fifty eight patients could receive 3 cycles of CT. Except one patient, there was no grade 3 or 4 toxicity during induction CT. Chemoradiotherapy could be given to 49 patients (83%). Twelve percent of patients had complete response after induction CT and this number had increased to 95% after the completion of the therapy. Objective responses (complete and partial) were 100% after the completion of the therapy. Median follow up time was 29 months. Nine patients had relapse (2 had local only, 4 distant, 3 local and distant). Three patients who had both local and distant relapse died during follow-up. Three year overall and progression free survival rates were 94.9% and 84.7%, respectively. Induction CT with docetaxel and cisplatin is a feasible and tolerable treatment for patients with LANC.


International Journal of Pediatric Otorhinolaryngology | 2011

Vitamin D levels in children with recurrent tonsillitis

Salih Aydin; Ismet Aslan; Ismail Yildiz; Bedia Agachan; Bahar Toptas; Sadik Toprak; Kemal Deger; Mehmet Faruk Oktay; Emin Ünüvar

AIM Although recurrent tonsillitis can be the consequence of defects in immune system, the exact etiology of recurrent tonsillitis is not clear. In this study, our aim was to determine the serum vitamin D levels and vitamin D receptor polymorphism among children undergone tonsillectomy due to the recurrent tonsillitis. METHODS A 106 children undergone tonsillectomy due to recurrent tonsillitis and a 127 healthy children aging between 2 and 12 years were enrolled in this study, to determine serum 25-hydroxyvitamin D level and vitamin D receptor gene polymorphisms (Apa1, Taq 1, fok1). Serum vitamin D level was measured with ELISA (nmol/L) and receptor gene polymorphism was determined by PCR. Vitamin D serum level below 80nmol/L was accepted as insufficient. RESULTS The average serum vitamin D level was 176±79nmol/L in recurrent tonsillitis group and 193±56nmol/L in control group. There was no significant difference between the groups (p=0.13). In recurrent tonsillitis group, 18% (n=15) of children had their serum vitamin D levels below 80nmol/L. The vitamin D receptor gene polymorphism (APA1, TAQ 1, FOK 1) in each group was compared (AA, Aa, aa, TT, Tt, tt, FF, Ff, ff). There was no significant difference between the two groups. The vitamin D serum levels and receptor sub-genotypes are also compared, and there was no significant difference between the groups. CONCLUSION There is no difference between the serum vitamin D level and receptor gene polymorphism among children with recurrent tonsillitis and healthy children. But vitamin D insufficiency is more prevalent in children with recurrent tonsillitis group (18%).


Annals of Allergy Asthma & Immunology | 2008

Allergic vs nonallergic rhinitis : which is more predisposing to chronic rhinosinusitis?

Aslı Gelincik; Suna Büyüköztürk; Ismet Aslan; Salih Aydin; Ferhan Özşeker; Bahattin Çolakoğlu

BACKGROUND The impact of allergy on chronic rhinosinusitis (CRS) is controversial. OBJECTIVE To evaluate whether a history of CRS is more prevalent in patients with allergic rhinitis than in those with nonallergic persistent rhinitis. METHODS A total of 115 patients (78 females; mean age, 31.9 years; age range, 14-64 years) with persistent rhinitis were included in the study. A 7-point analog scale was used to report the severity of individual and global CRS symptoms and to determine the impact of rhinosinusitis symptoms on quality of life. The allergic status of the patients was evaluated using skin prick tests for common inhalant allergens, and asthma was evaluated by means of history, physical examination, and respiratory function tests. Rhinoscopy and paranasal sinus computed tomography were used to determine CRS. RESULTS Asthma and CRS were not significantly different in allergic and nonallergic patients. Nasal polyps were found equally in both groups (8 patients). However, mean Lund-Mackay staging scores, postnasal drainage, dental pain, and global CRS scores were significantly higher in patients with nonallergic rhinitis (P = .045, P = .001, P = .02, and P = .01, respectively). No significant correlations, except for dental pain (correlation coefficient, 0.250; P = .008), were found between Lund-Mackay scores and CRS symptoms. In rhinoscopy, the only conspicuous difference was nasal purulence in allergic patients (P = .002). CONCLUSION Allergic and nonallergic rhinitis may contribute similarly to the development of CRS.


Annals of Otology, Rhinology, and Laryngology | 2002

Management of Carotid Artery Invasion in Advanced Malignancies of Head and Neck Comparison of Techniques

Gunter Hafiz; Erkan Kiyak; Ismet Aslan; Nermin Baserer; Mehmet Tinaz; Engin Yazicioglu; Necdet Biliciler

The objective of this study was to retrospectively investigate a single institutions experience with carotid artery resection performed as part of an oncological procedure and to determine acute and convalescent complication and survival rates. We performed a record review of 28 patients with head and neck malignancy invading the carotid artery. Immediate carotid artery resection and ligation on an emergent basis was performed on 12 patients (group 1), elective resection and ligation was performed on 8 patients (group 2), and elective resection and revascularization was performed on 8 patients (group 3). In group 1, although 1 patient survived for 1 year and 1 patient survived for 2 years, 1 patient died of severe neurologic deficit, 2 patients experienced neurologic deficit with good recovery, and 1 patient was moderately disabled. In group 2, 2 patients survived without disease for 5 years, and 2 patients experienced neurologic deficit, 1 with good recovery and the other with complete recovery. In group 3, only 1 patient survived for 5 years, and within this group, 1 patient died of severe neurologic deficit, 1 patient had neurologic deficit with moderate recovery, and 1 patient had neurologic deficit with complete recovery. No significant difference in mortality and morbidity rate was observed between the “resection and ligation” group and the “resection and revascularization” group (p = .52, χ2 = 0.79). We conclude that the surgical treatment of patients with an invaded carotid artery, including carotid resection, provides a small but real chance of 5-year survival. The methods of carotid resection and repair should be guided by clinical presentation and by preoperative and intraoperative investigations.


Journal of Asthma | 2009

Methotrexate: Can it be a Choice for Nasal Polyposis in Aspirin Exacerbated Respiratory Disease?

Suna Büyüköztürk; Aslı Gelincik; Ismet Aslan; Salih Aydin; Bahattin Çolakoğlu

Nasal polyposis (NP) is considered a subgroup of chronic rhinosinusitis and is commonly associated with asthma, bronchiectasis, and cystic fibrosis. A certain subgroup of nasal polyposis is known as Aspirin Exacerbated Respiratory Disease (AERD), previously called Samters Triad or aspirin triad, comprising polyposis, asthma, and aspirin hypersensitivity and makes up almost 10% of cases of NP. Therapy of NP involves a combination of medical and surgical treatments. However, recurrences are common, particularly in patients with asthma and aspirin hypersensitivity. Both topical and systemic corticosteroids form the mainstay of conservative therapy for NP as well as a primary treatment and prevention for recurrences. They have been shown to improve nasal breathing, rhinitis symptoms, and reduce the size of NP, along with the rate of recurrence. There is great concern about the adverse effects of systemic steroids, especially when long-term usage is necessary to maintain improvement. So far, no knowledge exists about the effects of methotrexate (MTX) on NP of the patients with asthma. We report two patients whose NP dramatically reduced in size after a course of MTX therapy administered as an additional treatment for their steroid- dependent asthma.


Journal of Laryngology and Otology | 2001

Malignant triton tumour of the parapharyngeal space

Cagatay Oysu; Ismet Aslan; Bilge Bilgic; Engin Yazicioglu

We report the clinical course in a 25-year-old male patient of neurofibromatosis with malignant triton tumour (MTT). Triton tumour is a peripheral nerve sheath tumour with rhabdomyoblastic differentiation. This is relatively rare tumour of head and neck region and only 26 cases have been reported to date. The present case is the first reported MTT of parapharyngeal space, one of the most aggressive course among all head and neck MTTs, resulting in the death of the patient within three months following surgical resection. The aggressive nature of this tumour necessitates adjuvant therapeutic measures in addition to radical surgery in order to obtain better survival rates.

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