Comparisons of Auditory and Vestibular Functions After Septorhinoplasty Performed with the Micro-compass Saw Technique and the Classical Technique

Audiological Evaluation and Cochlear Reserve in Posterior Canal Benign Paroxysmal Positional Vertigo

“…Otoacoustic emission (OAE) distribution of the studied patients by DPOAE was absent in 4 cases (20%), passed in 3 patients (15%) and partially passed in 13 cases (65%) (Table 3). Table (5) showed a significant positive correlation between age and pure tone audiometry, as PTA increased by increase of the age in the studied PC-BPPV patients. Correlation coefficient (r) and regression analysis between age of patients and pure tone audiometry at 250 Hz, demonstrated a significant weak positive correlation (r=0.2218, p = 0.042), at 500 Hz revealed a significant positive correlation (r=0.4184, p=0.009), at 1000 Hz revealed a significant positive correlation (r = 0.4164, p=0.009), at 2000 Hz revealed a significant positive correlation (r = 0.5255, p = 0.007), at 4000 Hz revealed a significant positive correlation (r=0.5288, p=0.007) and at 8000 Hz revealed a significant positive correlation (r = 0.6678, p = 0.004).…”

“…Distortion product OAE are objective tests utilized to evaluate the activity of the outer hair cells, it can detect compromised cochlear function in the lack of audiometric hearing loss [4] . It is important to detect the potential contribution of posterior canal BPPV to function of cochlear outer hair cells, by application of Otoacoustic emission (DPOAE and TEOAE) and to investigate changes of PTA thresholds (PTT) in patients suffering from posterior canal BPPV [5] . This work aimed to assess the audiological and cochlear reserve in posterior canal BPPV.…”