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Dive into the research topics where Abdullah Durmaz is active.

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Featured researches published by Abdullah Durmaz.


Annals of Otology, Rhinology, and Laryngology | 2010

Relationship between Postoperative Recurrence Rate and Eosinophil Density of Nasal Polyps

Fuat Tosun; Hasan Huseyin Arslan; Yildirim Karslioglu; M. Salih Deveci; Abdullah Durmaz

Objectives Nasal polyps develop as a result of chronic inflammation, mostly accompanied by pronounced eosinophil leukocyte infiltration. In this study we aimed to investigate the relationship between eosinophil density in nasal polyps and the postoperative recurrence rate of this disease. Methods Forty-two patients who underwent endoscopic sinus surgery for massive nasal polyposis by one surgeon were included in the study. The eosinophil leukocyte densities in nasal polyps were determined retrospectively on histologic slides by use of computer-assisted image analysis software. The patients were assigned to group 1, in whom nasal polyps contained up to 3 eosinophils per 1,000 urn2, and group 2, in whom nasal polyps contained 4 or more eosinophils per 1,000 um2. The postoperative recurrence rates of nasal polyps were compared in the two groups. Results There were 20 patients in group 1 and 22 patients in group 2. Postoperative polyp recurrence was detected in 5 of 20 patients (25.0%) in group 1 and in 18 of 22 patients (81.8%) in group 2 during the 30-month postoperative follow-up period (p < 0.05). Conclusions The eosinophil density of nasal polyps can be used to get an estimate of the postoperative recurrence risk. Eosinophil-rich nasal polyps have a higher postoperative recurrence rate.


Journal of Craniofacial Surgery | 2009

Impact of endoscopic sinus surgery on sleep quality in patients with chronic nasal obstruction due to nasal polyposis.

Fuat Tosun; Kismet Kemikli; Sinan Yetkin; Fuat Özgen; Abdullah Durmaz; Mustafa Gerek

Objective: The aim of this study was to investigate the effect of endoscopic sinus surgery on sleep quality in a patient group who has chronic nasal obstruction resulting from nasal polyposis. Methods: Twenty-seven patients with nasal polyposis, filling at least 50% of each nasal passage, were enrolled in the study. Assessment of nasal patency was determined by nasal endoscopy and acoustic rhinometry. All patients underwent endoscopic sinus surgery with polypectomy. Sleep quality was evaluated, using visual analog scale, Epworth sleepiness scale, and polysomnography before and 3 months after the surgery. Results: Nasal resistance decreased significantly after the surgery (P < 0.01). Snoring scores were significantly improved postoperatively (P < 0.01) and completely disappeared in 9 of 27 patients. A significant improvement occurred in mean daytime sleepiness scores in the postoperative period (4.14) as compared with the preoperative values (9.44; P < 0.01). There was no significant difference between preoperative (6.85) and postoperative (5.53) mean values of apnea-hypopnea index (P = 0.55). Conclusions: Endoscopic sinus surgery with polypectomy significantly improves sleep quality, including snoring and daytime sleepiness in patients with chronic nasal obstruction due to nasal polyposis. However, it has a limited benefit on apnea-hypopnea index scores.


Journal of Craniofacial Surgery | 2008

Transnasal endoscopic repair of choanal atresia: results of 13 cases and meta-analysis.

Abdullah Durmaz; Fuat Tosun; Nadir Yldrm; Murat Sahan; Cagr Kvrakdal; Mustafa Gerek

Transnasal endoscopic approach for the repair of choanal atresia (CA) has gained favor in recent years. However, the studied cohorts are too small to make a comprehensive comment on this approach. The aim of this study was to evaluate the effects of different techniques, used for the removal of CA under endoscopic guidance, on surgical outcome and effectiveness of transnasal endoscopic approach in these patients as a whole. We present the results of transnasal endoscopic repair of CA in 13 patients and made a meta-analysis of similar studies in the literature. Mean success rate with transnasal endoscopic repair was 85.3% in a total of 238 cases in 20 studies that met the inclusion criteria. Only the history of previous surgery for CA seemed to significantly decrease the postoperative success rate (P = 0.029). Rate of revision surgery did not significantly differ between mixed, bony, or membranous atresia (P = 0.395). Likewise, simple perforation or complete excision of the atretic plate under endoscopic view (P = 0.513), use or no use of mucosal flap to seal the denuded bone of the choana (P = 0.472), and postoperative stenting or no stenting (P = 0.252) have proved not to considerably have influence on the surgical outcome. Death of perioperative bleeding was the single major complication in 1 case among all of the study groups. In conclusion, types of CA, excision method, and stenting have no significant effect on surgical outcome of CA. Irrespective of the technique used for the excision and the repair of atretic plate, transnasal endoscopic approach with higher success rate and minimal postoperative morbidity is a good choice for the repair of CA.


Journal of Medical Case Reports | 2008

Primary parotid tuberculosis mimicking parotid neoplasm: a case report.

Hakan Birkent; Serdar Karahatay; Timur Akcam; Abdullah Durmaz; Onder Ongoru

IntroductionTuberculosis of the parotid gland is a rare clinical entity which causes some difficulties in diagnosis because of the similarities in presentation to that of a neoplasm. Diagnosis mainly relies in the treating physician having a high index of suspicion. The diagnosis is generally overlooked by otolaryngologists and most cases are undergoing unnecessary surgery.Case presentationA 20-year-old male presented with a mass in the right parotid region. The mass had been present for one year. Physical examination revealed a mobile, non-tender mass occupying the superficial lobe of the right parotid gland. Radiologic investigations revealed a well-defined, solid, mass lesion located in the posterior part of the superficial lobe of the right parotid gland. A provisional diagnosis of a neoplasm of the parotid gland was made and a right superficial parotidectomy was performed. Histopathologic examination of the specimen was reported as tuberculosis of the parotid gland. The patient was commenced on antitubercular chemotherapy.ConclusionAlthough rare, tuberculosis should be kept in mind and considered in the differential diagnosis of patients presenting with a solitary tumor in the parotid gland in order to avoid unnecessary surgery.


Laryngoscope | 2011

Transparapharyngeal and transpterygoid transposition of a pedicled occipital galeopericranial flap: a new flap for skull base reconstruction.

Carlos M. Rivera-Serrano; Carl H. Snyderman; Ricardo L. Carrau; Abdullah Durmaz; Paul A. Gardner

We present the anatomic and cadaveric foundations for novel modifications of the occipital galeopericranial flap for reconstruction of ventral skull base defects.


Journal of Craniofacial Surgery | 2008

Spontaneous Involution of Nasopharyngeal Angiofibroma

Fuat Tosun; Metin Onerci; Abdullah Durmaz; Sahin Ugurel

There are several studies addressing regression of residual nasopharyngeal angiofibroma after surgery, but spontaneous regression of this tumor has been reported in only 2 cases. We present a case of nasopharyngeal angiofibroma that has involuted spontaneously in the last 5 years. The tumor had been diagnosed at another institute. Computed tomography taken in 2002 had revealed the tumor occupying the entire sphenoid sinus and the pterygopalatine fossa, extending to the cavernous sinus and the infratemporal fossa on the right side. The vascularization of the tumor had been mainly from the internal maxillary artery on angiography. The internal maxillary artery had been occluded with a coil, but branches of internal carotid artery could not be embolized due to high risks of complications. In 2004 the patient was seen at our institute, and this time, repeated angiography revealed rich vascularization from the internal carotid artery. The patient did not accept any treatment and was put on follow-up. He had no complaint in January 2007. The tumor was seen to disappear completely, except a little remnant at the right pterygopalatine fossa on computed tomography. This is the third reported case in the literature with spontaneous regression of nasopharyngeal angiofibroma.


Journal of Craniofacial Surgery | 2011

Unexpected tumor incidence in surgically removed unilateral and bilateral nasal polyps.

Hasan Huseyin Arslan; Yusuf Hidir; Abdullah Durmaz; Yldrm Karslioglu; Fuat Tosun; Mustafa Gerek

Objective: The objective of the study was to investigate the postoperative tumor incidence on routine histopathologic examination of surgical specimens in patients who underwent endoscopic sinus surgery with the preoperative diagnosis of unilateral or bilateral nasal polyposis. Methods: Patients who underwent endoscopic sinus surgery with the preoperative diagnosis of unilateral or bilateral nasal polyposis between 2000 and 2009 were included in the study as the 2 separate groups. In both groups, tumor incidence that had been noticed on routine postoperative histopathologic examination was recorded retrospectively. Patients who had a preoperative diagnosis other than nasal polyposis, determined on biopsy, were excluded. Results: Of 251 patients included, 197 had the preoperative diagnosis of bilateral nasal polyposis, and 54 had unilateral nasal polyposis. No tumor was diagnosed on postoperative histopathologic examinations in patients with preoperative bilateral nasal polyposis. Seven patients (12.96%) with the preoperative diagnosis of unilateral nasal polyposis had tumors on postoperative histopathologic examinations. Two of these 7 patients had malignant tumors that were reported preoperatively by intranasal biopsy as inflammatory polyps. Conclusions: Diagnosis of a neoplasia is an extremely rare situation, unless there are special findings of tumor in patients with preoperative diagnosis of bilateral nasal polyposis. On the other hand, histopathologic examinations should be carried out in every case operated with preoperative diagnosis of unilateral nasal polyposis, as the tumor incidence is higher.


Journal of Craniofacial Surgery | 2011

Optimum height from the roof of the choana for seeking the sphenoid ostium.

Yusuf Hidir; Bilal Battal; Abdullah Durmaz; Bulent Karaman; Fuat Tosun

Objective: The purpose of this study was to investigate the optimum height that the sphenoid sinus ostium can be probed safely from the roof of choana in a large group of patients. Methods: The study was performed retrospectively. The 200 sphenoid ostia of the 100 patients whose thin-section computed tomography (CT) including the sphenoid sinus region, made for various reasons, were included in the study. The height of the sphenoid ostium and the skull base from the choana roof were measured on sagittal images of CT. Also, by calculating the ratio of first measurement to the second one, the location of the sphenoid ostium at the anterior wall of sphenoid sinus was determined proportionally. Results: The mean height of the sphenoid ostium from the choana roof was 10.9 (SD, 2.3) mm (range, 5.7-21.5 mm), and the mean height of skull base along the anterior wall of sphenoid sinus from the choana roof was 21.3 (SD, 3.2) mm (range, 13.3-30.6 mm). The ratio of the first measurement to the second measurement was 0.5 (SD, 0.08) (range, 0.29-0.77). Conclusions: In conclusion, under endoscopic view, the sphenoid sinus ostium can be safely probed between 13.3 mm (the minimum skull base height) and 5.7 mm (the minimum sphenoid sinus ostium height) distance upward from the choana, but determining the height of the sphenoid sinus ostium preoperatively on CTs for each patient separately will increase the chance of success in probing the sphenoid sinus.


Otolaryngology-Head and Neck Surgery | 2011

Relationship between Nasal Valve Changes and Nasalance of the Voice

Mustafa Gerek; Abdullah Durmaz; Umit Aydin; Hakan Birkent; Yusuf Hidir; Fuat Tosun

Objective It is well known that the nasal cavity and paranasal sinuses affect the acoustic characteristics of the voice as resonators. Any expansion in nasal valve area, the narrowest segment of the nasal cavity, affects the nasal resistance and therefore has the potential to alter the nasalance. The aim of this study was to investigate the effect of nasal valve changes on nasalance of the voice by using an external nasal dilator strip that widens the nasal valve area. Study Design Before-and-after study. Setting Tertiary university hospital. Subjects and Methods Healthy volunteer subjects who had no nasal or voice-related complaints were enrolled in the study. All subjects underwent acoustic rhinometry and nasometry before and while wearing a commercially available external nasal dilator strip. The data with and without the nasal strip were compared. Results Twenty-five subjects were enrolled in the study. After the application of nasal strips, statistically significant increases were observed in the minimal cross-sectional area of the nasal valve. However, there were no significant changes in the nasalance measurements. Conclusion Despite increasing the nasal valve area, application of the nasal strips did not cause any significant change in nasalance scores in healthy subjects, showing no relationship between the nasal valve and nasalance of the voice.


Journal of Craniofacial Surgery | 2014

EVALUATION OF THE CHANGES IN THE NASAL CAVITY DURING THE MIGRAINE ATTACK

Hasan Huseyin Arslan; Erkan Tokgöz; Uzeyir Yildizoglu; Abdullah Durmaz; Semai Bek; Mustafa Gerek

Objectives There are some subjective symptoms involving the nasal cavity such as nasal congestion during a migraine attack. In this study, we aimed to evaluate the possible changes occurring in the nasal cavity during headache in patients with migraine. Materials and Methods Patients with migraine were studied. The control group consisted of patients with tension-type headache. The severity of the headache and accompanying complaints were assessed using visual analog scale, and the nasal mucosa was assessed through anterior rhinoscopy and endoscopy. Resistance of the nasal cavity was evaluated through anterior rhinomanometry. Data obtained during the attack periods and attack-free periods were compared. Results Twenty-five patients with migraine and 15 patients with tension-type headache were enrolled. It was found that 19 patients (76%) of the group with migraine and 5 patients of the group with tension-type headache were experiencing nasal congestion during the attack and that the differences between the groups were statistically significant (P < 0.05). The average of total nasal resistance in the patients with migraine was 0.57 ± 0.60 kPa/L/sn during migraine attacks and 0.28 ± 0.14 kPa/L/sn during attack-free periods. The average of total nasal resistance in the patients with tension-type headache was 0.32 ± 0.14 kPa/L/sn during attack periods and 0.31 ± 0.20 kPa/L/sn during attack-free periods. In the group with migraine, the change of nasal resistance between during the attack and attack-free periods was found statistically significant, whereas there was no statistically significant difference in the group with tension-type headache. Conclusions According to the results of this study, complaints regarding nasal obstruction and nasal airway resistance increase during migraine attacks. Cause-and-effect relationship between nasal obstruction and pain is not clear, and clinical trials are needed to determine the effect of nasal obstruction treatment (mucosal decongestion, etc) on the complaint of pain.

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Fuat Tosun

Military Medical Academy

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Mustafa Gerek

Military Medical Academy

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Yusuf Hidir

Military Medical Academy

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Hakan Birkent

Military Medical Academy

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Umit Aydin

Military Medical Academy

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Bulent Satar

University of California

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Sergül Ulus

Military Medical Academy

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