Thermal Vestibulometry after Head Injury
Journal Title: Nepal Journal of Neuroscience - Year 2010, Vol 7, Issue 1
Abstract
The main purpose of this study is to determine the site of lesion in head injury cases by a procedure called thermal vestibulometry. Thermal vestibulometry was done in eleven normal subjects and ten patients of head injury. MSPV (maximum slow phase velocity) was calculated and plotted in a curve where ordinate was represented by MSPV and abscissa by different caloric temperatures. Resulting curve was studied by comparing the vestibulogram of individual head injury group with the maximum and minimum values of the control group of patients in order to arrive at a diagnosis. Out of ten cases of head injury, five patients showed hypofunctioning vestibulograms, two patients showed recruitment, two patients showed hyperactivity with or without decruitment and three cases showed normal vestibulograms. Nature of hearing loss of every deaf patient was compared with the vestibulogram of that individual case to know whether the auditory and the vestibular lesions of an individual were same or not. Hypofunction was a sign of a peripheral vestibular lesion. Presence of recruitment was diagnosed as a peripheral phenomenon. Hyperactivity with values of MSPV above the normal reference value was termed as a central phenomenon. The phenomenon of decay or decruitment which is always taken as a central phenomenon in audiometry, was found to be either peripheral or central in thermal vestibulometry. When compared with the site of origin of a deaf patient, it was found that the site of vestibular lesion may not be the same as that of the auditory lesion
Authors and Affiliations
Akhil Chandra Sarma, MS
Keywords
Related Articles
- EP ID EP370159
- DOI -
- Views 124
- Downloads 0
Analysis of morphology of the basilar-superior cerebellar
Morphological information of aneurysms is important for performing surgical clipping or endovascular coiling. Basilar-superior cerebellar artery (BA-SCA) aneurysms are rare types of intracranial aneurysms. There have bee...
Study of the Outcome Differences among the Ischemic Stroke Subtypes basedon TOAST Classifi cationat TribhuvanUniversity Teaching Hospital, Nepal
The objective of this study was to explore the outcome differen cesamong is chemic stroke sub types based on “Trial of ORG 10172 in Acute Stroke Treatment (TOAST)” system in a tertiary referral hospital. A hospital based...
Single Stage Clipping of Bilateral Middle Cerebral Aneurysms
Surgical management of bilateral intracranial aneurysms is difficult. In the case of bilateral Middle Cerebral Arteng (MCA) aneurysms, the various options of surgical treatment are, a unilateral approach, supraorbital ke...
A Child with Roberts Syndrome: A Case Report
rare birth defect causing, skeletal deformities, particularly symmetrical limb reduction and craniofacial anomalies. For any child with limb and craniofacial bony malformations, this syndrome should be considered in the...
Burr Hole Biopsy in Brain Lesions
Out of all brain tumors, half are malignant, so early detection and diagnosis is important to plan management. For early diagnosis, investigation through Computed Tomograph (CT) and Magnetic Resonance Imagina (MRI) are u...