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    The comparison of acoustic and psychic parameters of subjective tinnitus
    (Springer, 2012) Karatas, Erkan; Deniz, Murat
    We aim to assess the correlation between audiometric data, and psychotic and acoustic measures associated with subjective tinnitus (ST) and to clarify the importance of the psychological process in determining the degree of subjective annoyance and disability due to tinnitus. Fifty-four patients experiencing unilateral ST were allocated for the study. Acoustic assessment of patients including LDL (loudness discomfort levels), MML (minimum masking level) and RI (residual inhibition) was performed. Tinnitus Handicap Inventory (THI), Beck Depression Inventory (BDI) and Visual Analog Scale (VAS) tests were performed for the psychological aspects of subjective annoyance. RI was positive in 23 patients with 13 frequency-matched stimuli at 8,000 Hz. Masking treatment response was successful in 16 RI-positive patients. Mean and standard deviation (SD) of THI scores were 38.77 +/- A 23.63. Ten patients (%18.51) with tinnitus had a parts per thousand yen17 points score, which was significant for BDI. Mean and SD were 5.01 +/- A 2.31 for VAS-1 scores (severity of tinnitus), 7.98 +/- A 2.79 for VAS-2 (frequency and duration of tinnitus), 5.77 +/- A 2.72 for VAS-3 (discomfort level), 3.56 +/- A 3.30 for VAS-4 (attention deficit) and 3.31 +/- A 3.31 for VAS-5 (sleep disorders). A significant correlation was found between the tinnitus duration time, age, gender and THI scores (P < 0.05). There were statistically significant correlations between VAS 1, 2, 3 scores and LDL, MML and RI (P > 0.05). RI might be largely frequency dependent and was found as an indicator for the masking treatment response. We did not notice statistically significant correlations between audiometric data and THI and BDI. There were correlations between with VAS and LDL and with MML and RI. VAS was simpler and easier for the assessment of ST. We should consider the psychological aspects of ST and assess it as a symptom separately with acoustic and psychotic tests.
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    Intra- and postoperative electrically evoked stapedius reflex thresholds in children with cochlear implants
    (Elsevier Ireland Ltd, 2012) Baysal, Elif; Karatas, Erkan; Deniz, Murat; Baglam, Tekin; Durucu, Cengiz; Karatas, Zeynel Abidin; Mumbuc, Semih
    Objectives: The aim of this study was to investigate whether there is a significant correlation between intra- and postoperative electrically evoked stapedius reflex thresholds (eSRTs) in children with cochlear implants. Methods: Sixty-five pediatric cochlear implant users were included in this study. All patients had congenital prelingual hearing loss. The round window approach was used in all patients. The eSRTs were intraoperatively measured using the 1st, 3rd, 6th and 12th electrodes of the cochlear implant. The measurements taken during the first fitting of the device were taken again one month after surgery. We used paired-sample t-tests to determine the correlation between intra- and postoperative eSRTs. Results: The eSRT analysis revealed a statistically significant difference between the intra- and postoperative thresholds. A correlation analysis did not reveal any correlation between intra- and postoperative eSRTs. Conclusion: Intraoperative eSRT measurements were unable to predict early postoperative eSRTs. (C) 2012 Elsevier Ireland Ltd. All rights reserved.