Similar to caloric and rotational chair tests, vHIT reflects the function of the entire semicircular canal VOR pathway but cannot identify whether a peripheral vestibular sensory organ or vestibular nerve is damaged. The diagnostic value of vHIT is high (sensitivity of 87.9% and specificity of 94.8%) for VN, and other types of acute vertigo and its positive predictive and negative predictive values have been reported as 85.3% and 95.8%, respectively. 9 vHIT, as a high-frequency measure tool, is a useful complement to caloric and rotational tests.
| CONCLUSIONSThe present study showed that vHIT results were different in VN and SHLV groups, which may underlie different aetiologies of VN and SHLV; thus, further study will be necessary to confirm these results and determine the different aetiologies.The exclusive transcanal endoscopic tympanoplasty with tragal perichondrium is feasible, high success rate and good hearing results.This method also had the advantages of the minimised, better cosmetic results and free of suture.
CONF LICT OF I NTERESTSNone to be declared.
O R C I D
Li-Chun Hsieh