Abdullah Durmaz

Gulhane Military Medical Academy, Engüri, Ankara, Turkey

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Publications (36)21.89 Total impact

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    ABSTRACT: 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.
    The Journal of craniofacial surgery. 07/2014;
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    ABSTRACT: The aim of this study was to define the types of endoscopic endonasal resection for sinonasal malignancies according to their origin and extension. Patients who underwent endoscopic endonasal surgery for the removal of malignant tumors of the nasal passages, paranasal sinuses, and the anterior cranial base between 2003 and 2010 were included in the study. Patients' data were collected retrospectively. Patients were grouped according to types of endoscopic tumor resection as follows: type I: en bloc resection, type II: resection of intranasal free part piecemeal and origin of tumor en bloc, type III: resection of intranasal free part and origin of tumor piecemeal with curative intent, and type IV: resection of intranasal free part and origin of tumor piecemeal with palliative intent or removal of tumor with positive margin. The follow-up period varied from 2 to 7 years (mean, 4.35 years). Twenty patients were included in the study. Five patients underwent type I, 6 patients type II, 4 patients type III, and 5 patients underwent type IV resection. No local tumor recurrence was seen after types I, II, and III resections, whereas 2 patients (10%) with the type IV resection had a local recurrence. Distant metastasis was observed in 4 patients (20%) postoperatively (1 patient in type I, 1 patient in type III, and 2 patients in type IV resection). Disease-specific death was 15% (1 case in type I and 2 cases in type IV). Classification of endoscopic tumor resection used in the present study may help preoperative planning.
    The Journal of craniofacial surgery 01/2014; · 0.81 Impact Factor
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    ABSTRACT: Objective In this study, we aimed to investigate the presence and copy number of six different viruses in tonsillar tissue samples removed surgically because of chronic recurrent tonsillitis or chronic obstructive tonsillar hypertrophy. Methods In total, 56 tissue samples (tonsillar core) collected from 44 children and 12 adults were included in this study. The presence of viruses was investigated using a new TaqMan-based quantitative real-time PCR assay. Results Of the 56 tissue samples, 67.9% (38/56) were positive for at least one of the six viruses. Epstein-Barr virus was the most frequently detected virus, being found in 53.6% (30/56), followed by human parvovirus B19 21.4% (12/56), human adenovirus 12.5% (7/56), human cytomegalovirus 5.4% (3/56), BK polyomavirus 1.8% (1/56), and herpes simplex virus 1.8% (1/56). Precancerous or cancerous changes were not detected in the tonsillar tissue samples by pathologic examination, whereas lymphoid hyperplasia was observed in 24 patients. In contrast to other viruses, B19 virus was present in high copy number in tonsillar tissues. The rates of EBV and B19 virus with high copy number (> 500.000 copies/ml) were higher in children than in adults, and a positive relationship was also found between the presence of EBV and the presence of B19 virus with high copy number (P = 0.037). Conclusions It is previously reported that some viral agents are associated with different chronic tonsillar pathologies. In the present study, the presence of B19 virus in tonsillar core samples was investigated quantitatively for the first time, and our data suggests that EBV infections could be associated with B19 virus infections or could facilitate B19 virus replication. However, further detailed studies are needed to clarify this observation.
    International Journal of Pediatric Otorhinolaryngology. 01/2014;
  • Acta Radiologica 10/2013; 54(8):973. · 1.33 Impact Factor
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    ABSTRACT: Surgical approaches to the anterior cranial base have changed considerably with the introduction of endonasal endoscopic surgery. This study aims to define the factors which help in selecting the optimal surgical approach for the treatment of anterior cranial base encephaloceles. Patients who received treatment for anterior cranial base encephaloceles at our department between 1996 and 2011 were included in the study. Patients' charts were reviewed retrospectively to collect the necessary data. Treatment periods were classified as before 2000, between 2000 and 2005, and after 2005. The relationship between the treatment period, localization of encephalocele, symptoms related with the lesion, size of skull base defect, and selected treatment modality were investigated. Twenty-five patients, aged between 1 and 61 years with anterior encephaloceles were included in the study. Patients with small asymptomatic frontonasal and trans-ethmoidal encephaloceles (n = 5) were followed without surgery. An external approach with or without subfrontal craniotomy was mainly preferred for resection of sincipital encephaloceles (n = 10), especially with facial deformity. A subfrontal craniotomy approach was used for resection of basal encephaloceles in two cases before 2000. Two cases with sincipital encephaloceles and six cases with basal encephaloceles underwent pure endonasal endoscopic surgery after 2000. Cranial base defects of every size could be repaired using the endoscopic approach. Hydrocephalus and meningitis were the two complications seen after craniotomy in a follow-up period of 13-26 (mean 14.5) months. An external approach with or without craniotomy is needed for encephaloceles with external mass and facial deformity. Otherwise, sincipital and basal encephaloceles can be repaired successfully using the endonasal endoscopic approach.
    Archives of Oto-Rhino-Laryngology 09/2012; · 1.29 Impact Factor
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    ABSTRACT: Pollybeak deformity due to abundant fibrosis formation in the supratip region after rhinoplasty is still a common problem. The aim of this study was to investigate the effects of a modified subcutaneous approximation suture on pollybeak deformity of soft tissue origin. Three groups, each consisting of eight rabbits, were included in the study. Nasal skin was elevated with an open rhinoplasty approach in all groups. During closure of the skin, to minimize supratip dead space, a horizontal subcutaneous approximation suture was used in group I, external tape fixation was used in group II, and no further action was taken for supratip skin approximation in the control group. Full-thickness supratip skin biopsy specimens reaching down to the underlying cartilage tissue were taken from each subject on the 60th day after the operation. Thicknesses of subcutaneous scar tissues were measured histologically in all groups and compared. The mean thickness of the subcutaneous scar tissues was significantly lower (0.98 ± 0.32 mm) in group I than in group II (1.65 ± 0.61 mm; p = 0.036) and the control group (1.72 ± 0.49 mm; p = 0.019). However, there were no significant differences between group II and the control group in the mean thickness of subcutaneous scar tissues (p = 1.000). The findings of this study indicate that the subcutaneous approximation suture is effective for preventing excessive scar tissue formation in the supratip area after rhinoplasty in rabbits. Further clinical studies are needed to determine its efficacy in humans.
    American Journal of Rhinology and Allergy 07/2012; 26(4):e111-4.
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    ABSTRACT: 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. Before-and-after study. Tertiary university hospital. 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. 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. 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.
    Otolaryngology Head and Neck Surgery 02/2012; 147(1):98-101. · 1.73 Impact Factor
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    ABSTRACT: Congenital clefts of the larynx are rare and usually found dorsally. An anterior or ventral cleft of the larynx is extremely rare. Only a few patients with this defect have been reported in the literature. The purpose of this paper is to present a patient having an anterior and posterior laryngeal cleft together. A 20-year-old man presented with a history of dysphonia since childhood. He did not report symptoms of swallowing or respiration, and had no history of neck trauma. Findings of videolaryngoscopy showed a grossly abnormal larynx. The anterior commissure was wider than normal, and the vocal folds did not show a fusion anteriorly. There was an interarytenoid cleft posteriorly. A neck CT with 3D reconstruction demonstrated a ventral cleft or nonfusion of the thyroid cartilage with a posterior cricoid cleft. Barium swallow study was in normal limits. Since the patient did not have any problem with swallowing or respiration, no surgical intervention was planned, and the patient was put on speech therapy, which revealed improvement in voice. To our knowledge, this is the first case of a combined laryngeal cleft. The diagnosis is established by the clinical symptoms, endoscopic evaluation, and radiographic examinations including 3D and barium studies.
    Archives of Oto-Rhino-Laryngology 01/2012; 269(1):345-8. · 1.29 Impact Factor
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    ABSTRACT: The external branch of the superior laryngeal nerve gives off many branches above the upper pole of the thyroid gland. Differentiating the branch innervating the cricothyroid muscle from the others may be important during surgery. Therefore, we aimed to demonstrate the branching pattern of this nerve in detail. In 34 human cadavers (59 sides), branches of the nerve were exposed and measurements related to them and neighboring structures were made. A cricothyroidal branch was present on all sides. This branch pierced the inferior pharyngeal constrictor muscle 3.9-17.6 mm above, 3.1-9.9 mm below, or at the level of the upper pole of the thyroid gland. On all sides, the nerve provided one or two thyroidal branches. The thyroidal branch was generally thinner than the cricothyroidal branch. But they were equal in size on three (5%) sides. The external laryngeal nerve provided two or three pharyngeal branches on all sides. These branches arose from the nerve 3.5-12.7 mm from the upper pole of the thyroid gland. Although the branch was generally thinner than the cricothyroidal branch, both branches were equal on four (6.7%) sides. Two cardiac branches were observed on two (3.3%) left sides. In conclusion, the cricothyroidal branch was generally thicker than the other branches. But on seven (11.8%) sides, thyroidal or pharyngeal branches and the cricothyroidal branch were equal in size. These data may be important during surgery as the surgeon may confuse the cricothyroidal branch with other branches of the external laryngeal nerve.
    Clinical Anatomy 08/2011; 25(1):32-9. · 1.16 Impact Factor
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    ABSTRACT: Isolated hypermobile tongue is extremely rare. We present a case of isolated hypermobile tongue that caused several life-threatening airway obstructions during sleep. The tongue could reach to the nasopharynx and clear and moisten the nasopharynx by its movement.
    The Journal of craniofacial surgery 07/2011; 22(4):1529-31. · 0.81 Impact Factor
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    ABSTRACT: We present the anatomic and cadaveric foundations for novel modifications of the occipital galeopericranial flap for reconstruction of ventral skull base defects. Anatomic description. Using cadaveric dissections and measurements, we investigated the feasibility of transposing pedicled occipital galeopericranial flaps into the nasal cavity and skull base. Two fresh and five preserved human specimens were dissected. Pedicled occipital flaps were transposed into the nasal cavity via a transparapharyngeal-transpterygoid corridor into the nasopharynx. It was demonstrated that the pedicled occipital galeopericranial flap reaches the anterior skull base. Pedicled occipital flaps transposed into the nasal cavity can reach the anterior skull base and provide another option for vascularized reconstruction in selected patients.
    The Laryngoscope 05/2011; 121(5):914-22. · 1.98 Impact Factor
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    ABSTRACT: 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. 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. 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). 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.
    The Journal of craniofacial surgery 05/2011; 22(3):1077-9. · 0.81 Impact Factor
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    ABSTRACT: Regional vascularized flaps, such as the pericranial and temporoparietal fascia flaps, are currently used for reconstruction of skull base defects after endoscopic endonasal surgery whenever local vascularized flaps, such as the nasoseptal flap, are not available. Two different transposition pathways, infratemporal transpterygoid and subfrontal, have been proposed for regional flaps. The objective of this study was to describe and assess the feasibility of the transposition of a vascularized pedicled flap from the occipital galeopericranium via the prevertebral space corridor into the nasopharynx. Ten heads were injected with colored silicone. An endoscopic endonasal anterior craniofacial resection and panclival approach were performed in each specimen. The occipital flap was harvested using a previously described technique. The prevertebral corridor, extending from the neck to the nasopharynx, was dissected superficial to the paraspinal muscles. Computed tomography-based image guidance was used to assess the relationship between the corridor and adjacent neurovascular structures. Length of the corridor and pedicle and area of the donor flap were measured. The flap was harvested and successfully transposed into the nasopharynx using the proposed corridor in all studied specimens (10 heads, 20 sides). All flaps provided complete coverage of the skull base defects. The average length of the pedicle was 70.5 (SD, 6.5) mm, and the average length and width of the flap were 99.9 (SD, 14.6) mm and 59.3 (SD, 10.9) mm, respectively. The average length of the prevertebral corridor was 49.7 (SD, 4.8) mm. The occipital flap has favorable anatomic characteristics for use in skull base reconstruction. Transposition of the flap via the prevertebral corridor is a suitable option for vascularized reconstruction of expanded endonasal skull base defects when other local or regional flaps are not available. Additional clinical studies are necessary to define its role in endoscopic endonasal surgery.
    The Journal of craniofacial surgery 05/2011; 22(3):848-53. · 0.81 Impact Factor
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    ABSTRACT: 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. 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. 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. 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.
    The Journal of craniofacial surgery 03/2011; 22(2):751-4. · 0.81 Impact Factor
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    ABSTRACT: YAfiLILARDA ‹fi‹TME KAYBI VE ‹fi‹TME C‹HAZI KULLANIMI ÖZ Girifl: Bu araflt›rmada yafll›lardaki iflitme kay›plar›n›n özellikleri ve iflitme cihazlar›n›n kullan›m durumlar› ile hasta memnuniyetinin araflt›r›lmas› amaçlanm›flt›r. Gereç ve Yöntem: ‹flitme cihaz› önerilen altm›fl befl yafl ve üzerindeki olgular›n 1 y›l sonra iflitme cihaz›ndan memnuniyetlerini 1'den 10'a kadar derecelendirmeleri istendi. ‹flitme cihaz› al-mayan ve alan olgular›n demografik özellikleri ve iflitme kayb› özellikleri karfl›laflt›r›ld›. ‹flitme ciha-z› alan olgular, saf ses ortalamalar›na göre (50dB ve küçük, 50dB'den büyük), yüksek frekans or-talamalar›na göre (75dB ve küçük, 75dB'den büyük) ve konuflmay› ay›rt etme skorlar›na göre (%60 ve küçük, %60'dan büyük) ikili gruplara ayr›larak iflitme cihaz›ndan memnuniyetleri karfl›lafl-t›r›ld›. Bulgular: Çal›flmaya dahil edilen 50 olgudan 34'ünün (%68) iflitme cihaz›n› ald›¤› ve 16's›n›n (%32) iflitme cihaz›n› almad›¤› bulundu. Ortalama cihaz memnuniyeti 4.6±4.1 idi. ‹flitme cihaz› alan olgular›n yafl ortalamalar› daha fazla (p=0.006), saf ses ve yüksek frekans ortalamalar› daha yüksek (s›ras›yla p=0.016; p=0.034), konuflmay› ay›rt etme skorlar› daha düflük bulundu (p=0.014). ‹flitme cihaz› alan olgular ikili gruba ayr›larak bak›ld›¤›nda memnuniyetleri aras›nda is-tatistiksel olarak fark yoktu (s›ras›yla p=0.939; p=0.072; p=0.852). Saf ses ortalamas› >50 dB olan olgular›n daha fazla oranda iflitme cihaz› ald›klar› bulundu (p=0.008 Ki kare=7.123). Sonuç: ‹flitme cihaz› önerilen yafll›larda, yafl artt›kça, saf ses ve yüksek frekans ortalamalar› artt›kça, konuflmay› alma skorlar› azald›kça iflitme cihaz› kullan›m›n›n artt›¤›n› gözlemledik. ‹flitme kayb›n›n fliddeti iflitme cihaz› memnuniyetini etkilememektedir. Anahtar Sözcükler: Yafll›l›k; ‹flitme Kayb›; ‹flitme Cihazlar›. ABSTRACT Introduction: In this research, it is aimed to investigate properties of hearing loss, status of using of hearing aids, and satisfaction with hearing aids in elderly. Materials and Method: Hearing aid proposed elderly patients were asked one year later to rate their satisfaction from one to ten points. Properties of hearing loss and demographics were compared between hearing aids users and non-users. Hearing aids users were divided into groups according to averages of pure tone (£50dB and >50dB), high frequency thresholds (£75dB and >75dB), and speech discriminations (£60% and >60%). Satisfaction was compared between these groups. Results: 34 of 50 cases (68%) in the study group used a hearing aid and 16 (32%) didn't. Mean satisfaction rate was 4.6±4.1. Hearing aids users were older (p=0.006), had greater pure tone and high frequency averages than non-users (p=0.016; p=0.034, respectively), but speech discriminations were lower (p=0.014). There were no statistically differences with respect to sat-isfaction, when hearing aids users were divided into two groups each according to pure tone averages, high frequency averages and speech discriminations (p=0.939; p=0.072; p=0.852, respectively). Patients with >50dB hearing loss showed a greater tendency to use hearing aids (p=0.008, chi square= 7.123). Conclusion: We observed that use of hearing aids increased through older age, greater pure tone and high frequency averages and with lower speech discriminations in the elderly. Severity of hearing loss didn't affect satisfaction with hearing aids in the study.
    Turkish Journal of Geriatrics. 01/2011; 14:122-127.
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    ABSTRACT: The aim of the study was to evaluate the clinical features and treatment outcomes of patients with a thyroglossal duct cyst (TGDC) or fistula. The records of 49 patients (9 female, 40 male; mean age: 23.16 +/- 1.13 years; range 6 to 56 years) operated on between January 1995 and July 2009 were reviewed retrospectively. Patient's age, sex, duration of symptoms, clinical features, pre-operative diagnostic tests, treatment, histopathologic diagnosis, and post-operative complications were noted. All patients underwent the Sistrunk procedure. Fifteen patients (30.6%) were < or = 20 years old, while 3 (6.1%) patients were 40 years old at the time of operation. There was cyst formation in 26 patients (53.1%) and fistula formation in 23 patients (46.9%). The lesions of 41 patients (83.7%) were located in the midline, while the lesions of 8 patients (16.3%) were located in the paramedian neck (5 left side, 3 right side). The most common presenting symptoms were painless mass in the midline of the neck and recurrent suppuration of fistula formation. Neck ultrasonography (USG) was the most common pre-operative diagnostic procedure and was performed on all patients with cyst formations. There were no major complications postoperatively. There was recurrence in only one patient after the Sistrunk procedure. One patient was incidentally diagnosed with thyroid papillary carcinoma after histopathological examination. A TGDC is the most common congenital mass in the neck and is usually located midline. USG is suggested for a clinically suspected TGDC. The Sistrunk procedure is a safe and successful technique with low complication and recurrence rates. Even though carcinomas arising in TGDCs are uncommon, histopathological examination must be routinely performed to confirm the diagnosis and rule out malignancy.
    B-ENT 01/2011; 7(4):267-71. · 0.08 Impact Factor
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    ABSTRACT: 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. 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 microm2, and group 2, in whom nasal polyps contained 4 or more eosinophils per 1,000 microm2. The postoperative recurrence rates of nasal polyps were compared in the two groups. 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 followup period (p < 0.05). 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.
    The Annals of otology, rhinology, and laryngology 07/2010; 119(7):455-9. · 1.21 Impact Factor
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    ABSTRACT: Fascin is an actin-binding protein which is expressed in the basal areas of healthy squamous epithelium. Although overexpression of fascin has been shown in many tumours, the relationship between fascin and laryngeal squamous cell carcinoma has not previously been investigated, to the best of our knowledge. This study aimed to investigate the relationship between fascin expression and tumour behaviour in 30 cases of laryngeal squamous cell carcinoma. For all lesions, a section of paraffin-embedded tissue was immunohistochemically stained for fascin. The percentage of positive, stained cells was scored from one to five (one = 0-5 per cent, two = 6-25 per cent, three = 26-50 per cent, four = 51-75 per cent and five = 76-100 per cent), and the staining intensity from one to three (one = mild, two = moderate and three = strong). A total immunohistochemical fascin expression score was obtained by multiplying the staining percentage and intensity. The relationship between the total fascin score and each case's age, sex, tumour localisation, tumour-node-metastasis stage and differentiation was evaluated statistically. Various amounts of fascin expression were observed in all cases. There was a statistically significant relationship between high levels of fascin expression (i.e. a total fascin score of 10 or more) and the cases' tumour stage (p = 0.022), node stage (p = 0.024) and clinical stage (p = 0.014). In addition, worsening tumour differentiation was associated with an increasing fascin score, but this finding was statistically insignificant. These results suggest that laryngeal squamous cell carcinomas with high levels of fascin expression may be more aggressive than those with low expression levels. Further studies with larger series are needed to support these results and to clarify rationales.
    The Journal of Laryngology & Otology 11/2009; 124(2):194-8. · 0.68 Impact Factor
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    ABSTRACT: The parasphenoidal region is a difficult location to gain access to and contains a lot of vital neurovascular structures that have risk of injury during surgery. The transnasal endoscopic approach for this region has been described in several cadaveric studies in recent years. Herein we present a case of parasphenoidal myxoma, extending to the anteroinferior border of the cavernous sinus in a 48-year-old woman. The tumor was completely removed by the endoscopic transnasal transpterygoid approach. No postoperative complication was seen. The endoscopic transnasal transpterygoid approach may be a good alternative to external approaches in selective skull base tumors.
    Skull Base 09/2009; 19(5):349-52. · 0.66 Impact Factor
  • Abdullah Durmaz, S Karahatay, B Satar, H Birkent, Y Hidir
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    ABSTRACT: Conscious and deceptive exaggeration of hearing loss is termed pseudohypacusis. Even though the Stenger test has been used in the management of pseudohypacusis for almost a century, its sensitivity, specificity and predictive values for unilateral pseudohypacusis have not previously been reported, to our best knowledge. We investigated the efficiency of the Stenger test in detecting unilateral pseudohypacusis, accepting auditory brainstem response testing as the 'gold standard'. Candidates with questionable profound or total hearing loss were enrolled in the study. Pure tone audiometry, speech and tonal Stenger tests, and click test auditory brainstem response measurement were performed. Accepting auditory brainstem response testing as the gold standard, the sensitivity, specificity and predictive values of the Stenger test for unilateral, profound pseudohypacusis were assessed. Two hundred military candidates were enrolled in the study. The sensitivity and specificity of the Stenger test in verifying unilateral, profound hearing loss were 99.4 and 70 per cent, respectively. The positive and negative predictive values of the test were 87.5 and 98.4 per cent, respectively. The Stenger test is widely used for the evaluation of unilateral or asymmetrical pseudohypacusis. In our opinion, it is a powerfully reliable test. More difficult cases require objective electrophysiological testing to verify functional hearing loss and to exclude specific diagnoses that may imitate pseudohypacusis.
    The Journal of Laryngology & Otology 04/2009; 123(8):840-4. · 0.68 Impact Factor