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Published on: January 29, 2014
Auditory p300 event-related potentials in children with Sydenham's chorea
Hasan Hüseyin Ozdemir1, Kaan Demiroren2, Caner F Demir3
1Dicle University, Diyarbak?r, Turkey.
Insights
P300 event-related potentials (ERPs) revealed prolonged interpeak latencies in Sydenham's chorea (SC) patients, indicating cognitive impairment. Treatment improved these P300 ERPs, suggesting their utility in monitoring SC cognitive status.
Area of Science:
- Neuroscience
- Cognitive Science
- Pediatrics
Background:
- Sydenham's chorea (SC) is a childhood disorder with potential cognitive implications.
- P300 event-related potentials (ERPs) are objective neurophysiological markers of cognitive processing.
- The utility of P300 ERPs in assessing cognitive function in SC has not been previously investigated.
Purpose of the Study:
- To evaluate cognitive impairment in Sydenham's chorea patients using P300 event-related potentials (ERPs).
- To assess the potential of P300 ERPs as a biomarker for cognitive deficits in SC.
Main Methods:
- Auditory odd-ball paradigm was employed to elicit P300 ERPs in 17 SC patients and 20 healthy controls.
- Psychometric assessment was conducted using the Stanford-Binet intelligence test.
- P300 latency and amplitude measures were analyzed in pre- and post-treatment SC groups compared to controls.
Main Results:
- No significant differences in P300 latencies were observed between SC (pre- and post-treatment) and control groups.
- Mean interpeak latencies were significantly prolonged in both SC pre- and post-treatment groups compared to controls (p<0.05).
- A significant decrease in mean interpeak latencies was noted in the SC post-treatment group versus the SC pre-treatment group (p<0.05).
- Stanford-Binet intelligence test results showed no significant differences between SC patients and controls.
Conclusions:
- P300 ERPs, specifically interpeak latencies and amplitudes, show promise for detecting and monitoring cognitive impairment in Sydenham's chorea.
- P300 ERPs may serve as a sensitive neurophysiological tool to track cognitive changes associated with SC and its treatment.
Unlabelled:
P300 event-related potentials (ERPs), objective measures related to cognitive processing, have not been studied in Sydenham's chorea (SC) patients.
Purpose:
To assess cognitive impairment with P300 ERPs.
Method:
Seventeen patients with SC and 20 unaffected healthy children were included. Stanford-Binet test was used for psychometric assessment, and odd-ball paradigm was used for auditory ERPs.
Results:
There was no significant difference in P300 latencies between the SC-pretreatment group, SC-posttreatment group and control group (p>0.05). Mean interpeak latencies in SC-pretreatment group and SC-posttreatment group showed significant prolongation compared with the control group (p<0.05). Mean interpeak latencies in SC-posttreatment group were significantly decreased compared with SC-pretreatment group (p<0.05). Compared to controls, patients did not show significant difference in Stanford-Binet intelligence examination.
Conclusion:
This report suggests that interpeak latencies and amplitudes of P300 ERPs could be useful for detecting and monitoring cognitive impairment in SC patients.
