Avtor/Urednik		Žgur, T
Naslov		Spremembe motoričnih in somatosenzoričnih izvabljenih odzivov pri bolnikih po možganski kapi
Tip		monografija
Kraj izdaje		Ljubljana
Založnik		Medicinska fakulteta
Leto izdaje		1993
Obseg		str. 94
Jezik		slo
Abstrakt		Motor (MEP) and somatosensory evoked potentials (SEP) were assessed during the 2nd week and 6 months after stroke in 40 patients suffering from a unilateral ischemic stroke localised in the territory of the middle cerebral artery. Motor and sensory neurologic deficit resulting from stroke was assessed in 40 patients. Eighteen patients out of 30 tested during the second week after stroke were reevaluated again after 6 months. Another 10 patients were assessed 6 months after stroke only. Testing comprised clinical examination with determination of muscle force, tone, tendon jerks, arm function score and sensory scores. MEP of biceps brachii, abductor digiti minimi and tibialis anterior muscles were evoked by magnetic excitation of motor cortex. SEP evoked by electrical median nerve stimulation were recorded above brachial plexus, neck, frontal and central regions of head. The MEP and SEP findings were correlated to clinical signs and the value of MEP in prediction of final clinical outcome was determined. MEP analysis showed changes suggesting axonal and/or cellular type of corticospinal tract lesion and the reduction in corticospinal tract excitability. Correlation of MEP parameters and muscle force showed relation of MEP to the function of the corticospinal system responsible for the execution of gross powerful movements and not only the relation to selective pyramidal function responsible for the execution of fine skillful finger movements. Muscle tone and tendon jerks showed correlation to correlation to MEP in the cronic phase after stroke indicating the correlation of spasticity to the reduction of corticospinal influences. Plantar response in extension didn't show direct plantar response only to the critical part of corticospinal system. SEP showed good preservation of subcortical potentials P15 and N17 and the absence or abnormality of frontal cortical potentials P20 and N30 and central potentials N20 and P28.(trunc.)
Deskriptorji		CEREBROVASCULAR DISORDERS EVOKED POTENTIALS, SOMATOSENSORY MOTOR CORTEX EVOKED POTENTIALS MEDIAN NERVE ELECTROMAGNETIC FIELDS MUSCLE CONTRACTION ARM