Internal carotid blood flow velocity in children with cerebral palsy by Doppler Ultrasound method
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Children with cerebral palsy show significantly reduced cerebral blood flow velocities. This suggests generalized bilateral brain damage rather than localized issues in hemiplegic cases.
Area of Science:
- Neurology
- Pediatrics
- Vascular Medicine
Background:
- Cerebral palsy (CP) is a group of disorders affecting movement and posture, often linked to early brain damage.
- Understanding cerebral blood flow (CBF) is crucial for assessing neurological function in pediatric conditions.
- Noninvasive Doppler ultrasound offers a valuable tool for evaluating CBF in children.
Purpose of the Study:
- To assess noninvasively cerebral blood flow in children diagnosed with cerebral palsy.
- To compare CBF parameters between children with CP and healthy controls.
- To investigate potential lateralization of CBF deficits in children with spastic hemiplegia.
Main Methods:
- Utilized Doppler ultrasound to measure internal carotid artery blood velocities in 30 children with CP and healthy controls.
- Recorded average maximal blood velocity (A/L) and end-diastolic blood velocity (d).
- Assessed velocities before and during contralateral common carotid artery compression.
Main Results:
- Children with cerebral palsy exhibited significantly lower A/L and d values compared to healthy children.
- No significant difference in A/L or d was observed between affected and non-affected sides in children with spastic hemiplegia.
- CBF parameters remained similar before and during common carotid artery compression in hemiplegic children.
Conclusions:
- Mean cerebral blood flow is decreased in children with cerebral palsy.
- The absence of lateralization in hemiplegic children suggests generalized bilateral brain damage.
- Doppler ultrasound is effective for evaluating hemispheric cerebral circulation in pediatric neurological disorders.
Abstract:
Cerebral blood flow assessed noninvasively by Doppler ultrasound technique in 30 children with cerebral palsy. The average maximal blood velocity (A/L) and end-diastolic blood velocity (d) of internal carotid artery were measured before and during brief digital compression of contralateral common carotid artery. Both A/L and d values in children with cerebral palsy were significantly lower than those observed in normal healthy children. In 13 children with spastic hemiplegia, no significant difference in either A/L or d was seen between the non-affected side and affected side both before and during brief digital compression. This data suggests that mean cerebral blood flow decreases in our children with cerebral palsy, and that no lateralization of the decrease in hemispheric cerebral circulation in hemiplegic children may explain by supposing the existence of generalized bilateral brain damage in those subjects.