Objective: Drug induced sleep endoscopy (DISE) is a valuable tool which is used in the diagnosis of obstructive sleep apnea (OUA). The aim of this study is to evaluate inter-rater and intra-rater consistency of DISE. Methods: 36 OSA patients with Apnea-hypopne index>5 included in this study. DISE was performed and recorded digitally for all patients, by the first author (OA1). VOTE scores were noted to procedure report in patients' charts. Video records of DISE were blindly evaluated six months after the last procedure, by observer 1 for the second time (OA2) and by observer 2 (OB) for the first time. DISE was evaluated by using VOTE classification. OA1 and OA2 scores were compared to determine intra-rater reliability and OA2 and OB scores were compared to determine inter-rater reliability. Results: Inter-rater consistency of DISE was poor to good. Highest consistency rate was found in velum at anteroposterior configuration, while the lowest was found in the same level at lateral configuration. Intra-rater consistency of DISE was moderate to excellent. Highest consistency rate was found in epiglottis at lateral configuration, while the lowest was found in oropharynx level. Conclusion: OSA is condition with possible serious complications. DISE is a tool that could change the course of treatment in OSA. The validity of DISE is quite acceptable although a golden standard classification tool could enable us to "speak the exact same language" and will surely increase the diagnostic success of DISE.

To evaluate the effectiveness of radiofrequency (RF) ablation of the inferior tubinates in patients with and without allergic rhinitis. Methods: A prospective study including 47 patients who underwent radiofrequency ablation. The patients were divided into two groups according to allergic rhinitis status. The sinonasal outcome test-22 (SNOT-22), peak nasal flowmetry and the ''Connecticut Chemosensory Clinical Research Center'' test were administered in all patients before and after surgery. Results: Thirty-four patients with allergic rhinitis and 13 without were assessed. Both groups showed a significant improvement in SNOT-22 scores, peak flowmeter results, and olfactory function after the procedure (p<0.05). There was no significant difference between the groups for peak flowmeter results and olfactory function (p>0.05). Conclusion: RF ablation has positive effects on nasal airflow, quality of life and olfaction in patients with and without allergic rhinitis. However, it would be useful to note that patient satisfaction would be less in patients with allergic rhinitis.

Anahtar Sözcükler: Fistül, kist, sistrunk operasyonu Aim: In this study, we aimed to discuss the examination findings, clinical features and treatment methods in 72 patients, who were operated for thyroglossal duct cyst, in the light of the relevant literature. Methods:We retrospectively analyzed the medical reports of 72 patients who were operated due to thyroglossal duct cyst in our clinic.Results: Forty-eight patients were male and 24 were female. The age at presentation ranged from 10 to 56 years (average age: 16.8±15.7 years). The most common complaint was fistula point at the middle region of the neck (58%). Rarely, a nodule or intermittent secretion was being at the middle of the neck in patients. Fistula point or nodule was settled at the midline of the neck and thyrohyoid zone in 16 patients. Clinic presentation was a fistula in 38 patients and a cyst in 34 patients. Sistrunk operation was performed in all patients.Conclusion: Thyroglossal duct cyst should be considered in the differential diagnosis of patients presenting with neck swelling and discharge from the midline. Thyroglossal duct cysts should be treated surgically due to the risk of malignant transformation. Sistrunk surgery, with its low recurrence rate and low risk of complications, is the gold standard in the treatment of thyroglossal duct cysts. Keywords: Fistulas, cysts, sistrunk operation Abs tractYa z›fl maAd re si/Ad dressforCor res pon den ce:Cemal Hacı