Background and Aim: In unilateral sudden sensorineural hearing loss (SSNHL), the vestibular system may be involved in addition to the auditory system. Several hearing assessments have shown that the disease course and the patient's improvement, at least two step of vestibular assessments can help in better control of the patient's balance function. The aim of this study was to evaluate the results of cervical vestibular evoked myogenic potentials (cVEMP) and video head impulse test (vHIT) used for assessment of saccule and semicircular canals before and after steroid therapy.
Methods: Twenty three patients with SSNHL were evaluated for auditory and vestibular function before and after steroid therapy. The results of cVEMP and vHIT were compared between intact and impaired ears and between pretest/posttest stages before and after treatment.
Results: For 26.08% of patients, the cVEMP response was absent in the affected ear, but after treatment it was reported for all patients. There was a significant difference in vestibulo-ocular reflex (VOR) gain for both posterior and anterior semicircular canals of affected ear before and after treatment, but it was not significantly different after treatment as VOR gain increased.
Conclusion: Dysfunction of nervous and vestibular systems in SSNHL is possible. Steroid therapy can improve the vestibular function and hearing of these patients. Therefore, vestibular evaluation can be used to determine the extent of lesions in SSNHL.
Keywords: Unilateral sudden sensorineural hearing loss; vestibular evoked myogenic potentials; saccule; semicircular canals; video head impulse test
Background and Objective: Deep vein thrombosis and pulmonary embolism are fatal problems following brain trauma that, if left untreated, can dramatically increase mortality. Therefore, the present study aimed to evaluate deep vein thrombosis, pulmonary embolism and related factors in patients with traumatic brain injury. Materials and Methods: This cross-sectional study was performed on 38 patients with isolated brain trauma in the intensive care unit. The study tool was a checklist that was completed as a file reading. The information required for the study was also collected through Doppler ultrasound and computed tomography angiography reports. The obtained data were analyzed in SPSS software using Chi-square and Fisher tests. The significance level of the tests was considered 0.05.
Results:The mean age of study participants was 51.5± 18.3 years. In this study, 5.3% and 2.6% of participants had deep vein thrombosis and pulmonary embolism, respectively. There was a significant difference between the group with deep vein thrombosis and without deep vein thrombosis in the length of hospital stay, the mean length of stay in the ICU and the mean time of complete bed rest (CBR). Conclusion: According to the effective variables in the development of thrombosis in this study, the development of related interventions to reduce the incidence of deep vein thrombosis and pulmonary embolism can minimize disability and mortality due to these diseases.
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