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Dive into the research topics where Ethem Poyrazoglu is active.

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Featured researches published by Ethem Poyrazoglu.


Otolaryngology-Head and Neck Surgery | 2008

Comparison of paper-patch, fat, and perichondrium myringoplasty ın repair of small tympanic membrane perforations

Engin Dursun; Salim Dogru; Atila Gungor; Hakan Cincik; Ethem Poyrazoglu; Taner Ozdemir

OBJECTIVE: To compare the effectiveness of paper-patch, fat, and perichondrium myringoplasty in the treatment of chronic tympanic membrane perforations smaller than 3 mm. SUBJECTS AND METHODS: This investigation included 45 patients with chronic tympanic membrane perforations smaller than 3 mm. The patients were equally divided into 3 main groups according to surgical procedures. Each group consisted of 3 subgroups, which had 1-mm, 2-mm, and 3-mm perforations. The patients underwent paper-patch, fat, or perichondrium myringoplasty via transcanal approach under local anesthesia. Healing of perforation, hearing improvement, and complications were investigated. RESULTS: Closure rates of the perforations in the paper-patch, fat, and perichondrium myringoplasty groups were 66.7%, 86.7%, and 86.7%, respectively. There were no statistically significant differences in tympanic membrane closure rates between techniques with regard to size. CONCLUSION: Three techniques were found to be feasible for tympanic membrane perforations smaller than 3 mm.


Otology & Neurotology | 2004

Mastoid osteomas: report of two cases.

Atila Gungor; Hakan Cincik; Ethem Poyrazoglu; Omer Saglam; Hasan Candan

Objective: To discuss the differential diagnosis of two cases with mastoid mass. Study Design: Case report and review of the literature. Setting: The study was carried out in Gulhane Military Medical Academy, Haydarpasa Training Hospital, Istanbul, Turkey. Patient, Intervention, and Results: Both cases were 23-year-old males. They admitted to our clinic with masses behind their left ears that had been progressively enlarging for 5 years. In both cases, coronal and axial computerized tomography scans revealed a wide-based lesion involving temporal bone cortex. The cases were operated on for diagnosis and for correction of the cosmetic deformity. Histopathological examinations were consistent with mixed and spongiotic osteoma. Conclusions: Mastoid osteoma is a rare, benign tumor of bone. It may cause cosmetic deformity such as external mass or an auricular protrusion. Other neoplasms of the mastoid region, such as osteosarcoma and osteoblastic metastasis, should be considered for the differential diagnosis.


Otology & Neurotology | 2006

Effects of topical application of mitomycin-C and 5-fluorouracil on myringotomy in rats.

Hakan Cincik; Atila Gungor; Engin Cekin; Omer Saglam; Sukru Yildirim; Ethem Poyrazoglu; Hasan Candan

OBJECTIVE The effects of topical application of Mitomycin-C (MMC) and 5-fluorouracil (5-FU) for maintaining myringotomy patency were investigated in this experimental study. STUDY DESIGN We performed simple myringotomy with a knife on 140 tympanic membranes of 70 rats. Rats were divided in two study groups and a control group. Each study group had 60 tympanic membranes, and the control group had 20. We applied Mitomycin-C (0.4 mg/ml) in Group A, 5-fluorouracil (50 mg/ml) in Group B topically, and sterile saline in the control group for 10 minutes. Examination was made with otoendoscope on days 1, 3, 5, 7, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, and 70, and patency rates were recorded. RESULTS MMC and 5-FU Groups remained open for a mean of 46.17 days and 14.62 days, respectively. The control ears healed within 10.4 days. Fibrosis of the MMC-treated group was the same as that of 5-FU-treated groups. Fibrosis of both study groups was significantly lower than that of the control group. CONCLUSIONS MMC is more effective than 5-FU, which is more effective than the simple myringotomy procedure in extending the patency of myringotomies in rat tympanic membranes (p < 0.05). Both medications are useful as an adjunct in preventing myringotomy closure.


American Journal of Otolaryngology | 2003

The effectiveness of hyperbaric oxygen treatment in tracheal reconstruction with auricular cartilage grafts (experimental study).

Atila Gungor; Ethem Poyrazoglu; Hakan Cincik; Murat Sali; Hasan Candan

PURPOSE Tracheal stenosis or neoplastic changes, as well as, traumatic, congenital, or iatrogenic causes may require extensive tracheal resections. Complications like vascularization insufficiency and structural support problems occur nearly in all cases when end-to-end anastomosis of trachea is not feasible. Hyperbaric oxygen (HBO) treatment is a well-known method for the management of grafts and flaps that have vascularization problems. In this study, the effect of hyperbaric oxygen treatment on wound healing after tracheal reconstruction with auricular cartilage graft (ACG) has been evaluated. METHODS Thirty-two rabbits were divided into 2 groups: study group (n = 16) and control group (n = 16). The anterior halves of the six tracheal rings were resected, and the defects were repaired with autogenic auricular grafts. Hyperbaric 100% pure oxygen was administered to the study group at 2.4 atmospheres of absolute pressure 2 times a day for 1 week. The control group did not receive any therapy except proper control of the wound. RESULTS It was observed that in the study group, inflammation, fibrosis, and necrosis were less, whereas epithelialization and maturation were early and neovascularization and neochondrification were more than the control group only at specific weeks. But all tracheas in both groups showed excellent healing without graft rejection and excessive granulation tissue formation. Furthermore, there was no statistically difference between the 2 groups. CONCLUSIONS Auricular cartilage grafts is a valuable management method of tracheal defects, and hyperbaric oxygen treatment is a good supplementary method in healing period of cartilage autografts.


Otolaryngology-Head and Neck Surgery | 2006

Histologic effects of injection snoreplasty and radiofrequency in the rat soft palate.

Ethem Poyrazoglu; Salim Dogru; Bülent Saat; Atila Gungor; Engin Cekin; Hakan Cincik

OBJECTIVE: This study was undertaken to compare the effects of radiofrequency and injection snoreplasty on the histological structure of the soft palate in an animal model. STUDY DESIGN AND SETTING: This is a blinded, controlled histologic evaluation of rat soft palates that underwent separate palatal interventions. Fifty rats were divided into 5 groups of 10 rats (Group 1 = injection snoreplasty [IS], Group 2 = IS + steroid, Group 3 = saline injection, Group 4 = radiofrequency ablation [RFA], and Group 5 = no intervention). The animals were sacrificed after 24 hours, 1 week, 3 weeks, and 5 weeks. Then the soft palates were subjected to histological analysis. RESULTS: Histological analysis demonstrated normal remucosalization in all specimens, with fibrosis increased in Group 1. Interstitial edema was minimal in Group 2. Keratinization was most apparent in Group 4. CONCLUSION: Radiofrequency and injection snoreplasty stiffen the rat soft palate compared with controls.


Operations Research Letters | 2006

Comparison of Uvulopalatopharyngoplasty, Laser-Assisted Uvulopalatoplasty and Cautery-Assisted Uvulopalatoplasty in the Treatment of Primary Snoring

Hakan Cincik; Engin Cekin; Bilal Cetin; Atila Gungor; Ethem Poyrazoglu

Objective: Our aim was to compare the postoperative pain and surgical results of uvulopalatopharyngoplasty (UPPP), laser-assisted uvulopalatoplasty (LAUP), and cautery-assisted uvulopalatoplasty (CAUP) procedures in the treatment of primary snoring. Methods: 54 patients were stratified according to a modified Friedman staging system (MFSS) for sleep-disordered breathing. Tonsil size (1, 2, 3) and palatal position scale (grade 1–2) and body mass index <30 according to the MFSS were included for standardization. Three workgroups consisting of 18 patients each were formed and UPPP, LAUP and CAUP procedures were performed. The success of the surgical procedures was evaluated by applying the Epworth Sleepiness Scale to the patients, and the patients’ bed partners were asked to evaluate the snoring level preoperative and 45 days after the operation to determine any improvement in snoring complaints. Patients were followed for postoperative pain, secondary infection, bleeding, permanent velopharyngeal insufficiency and nasopharyngeal stenosis. Results: Snoring was relieved in 83.3% of UPPP and CAUP groups and in 88.8% of LAUP 45 days after operation. The mean pain duration was 5.71 days for the UPPP patients, 6.28 days for the LAUP patients and, 4.12 days for the CAUP patients. The mean pain score was 2.1 for the UPPP patients, 2.38 for the LAUP patients, and 1.6 for the CAUP patients. Only 1 patient was hospitalized due to pain in the LAUP group. Conclusion: The effectiveness of UPPP, LAUP and CAUP procedures were found to be similar (more than 83%). Postoperative pain was mostly seen in LAUP and UPPP cases. The CAUP procedure was easy and the least painful.


Oto-rhino-laryngologia Nova | 2002

Bilateral Facial Nerve Paralysis Secondary to Acute Myelogenous Leukemia

Atila Gungor; Hakan Cincik; Ethem Poyrazoglu; Murat Sali; Hasan Candan

Bilateral facial paralysis is a rare condition. We present a case of acute myeloblastic leukemia manifesting itself in bilateral hearing loss and bilateral facial paralysis. We suspected systemic disease because of the abnormal blood cell count of the case. The diagnosis of leukemia was made with histological examination of a bone marrow aspirate. Computed tomography and gadolinium-enhanced magnetic resonance imaging scans revealed bilateral infiltration of the mastoid bones, middle ears and facial nerves. One should always remember that bilateral facial paralysis may be the first sign of a life-threatening illness. If infiltration is observed in the air-filled cells of the mastoid bone, before emergency surgery is planned, the possibility of leukemic infiltration should be considered.


American Journal of Otolaryngology | 2005

The effects of mitomycin C and 5-fluorouracil/triamcinolone on fibrosis/scar tissue formation secondary to subglottic trauma: (Experimental study)

Hakan Cincik; Atila Gungor; Adem Cakmak; Atilla Omeroglu; Ethem Poyrazoglu; Sukru Yildirim; Engin Cekin; Hasan Candan


International Journal of Pediatric Otorhinolaryngology | 2004

The effects of incisional myringotomy and CO2 laser myringotomy on rat tympanic membranes

Ethem Poyrazoglu; Hakan Cincik; Atila Gungor; Berk Gürpinar; Sukru Yildirim; Hasan Candan


Medical Science Monitor | 2005

Effective dose of 5-fluorouracil for myringotomy in rats.

Hakan Cincik; Omer Saglam; Engin Cekin; Sukru Yildirim; Ethem Poyrazoglu

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Hakan Cincik

Military Medical Academy

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Atila Gungor

Military Medical Academy

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Hasan Candan

Military Medical Academy

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Engin Cekin

Military Medical Academy

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Sukru Yildirim

Military Medical Academy

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Murat Sali

Military Medical Academy

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Salim Dogru

University of Iowa Hospitals and Clinics

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Adem Cakmak

Military Medical Academy

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Berk Gürpinar

Military Medical Academy

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