We studied the effects of supplementing nitrous oxide-oxygen anaesthesia with halothane (1 MAC end-tidal concentration) on the motor evoked potential recorded in the extradural space of eight patients before corrective surgery for idiopathic adolescent scoliosis. The motor cortex was stimulated electrically through the scalp. An additional eight patients in whom anaesthesia was supplemented wit...

Background and Importance: The development of C5 root palsy is a well-known potential complication of cervical spine surgeries for the correction of cervical spondylotic myelopathy. It typically occurs unilaterally but on extremely rare occasions it might occur as a bilateral anomaly. The value of intraoperative neurophysiologic monitoring in detection of iatrogenic acute versus delayed onset C...

background: parkinson's disease (pd) is a neurodegenerative disorder impairing motor, verbal and other abilities. visual evoked potential (vep) assessment is a useful method for analysis of visual system and its function. the present study was designed in order to evaluate whether vep changes are associated with pd. m aterials and methods: in the present study, 100 subjects encompassing 40 pati...

background: multiple sclerosis (ms) is a chronic neurological disease that affects brain and spinal cord. the infratentorial region contains the cerebellum and brainstem. vestibular evoked myogenic potentials (vemps) are short-latency myogenic responses. cervical vestibular evoked myogenic potential (cvemp) is a manifestation of vestibulocolic reflex and ocular vestibular evoked myogenic potent...

background and aim: caffeine at low doses blocks adenosine receptors. these receptors are present in all parts of the body including auditory and vestibular system. this study aimed to evaluate the effects of caffeine on cervical vestibular evoked myogenic potential (cvemp). methods: in this interventional double-blind study, 40 cases (20 females and 20 males) aged 18-25 years were randomly ass...