AI Article Synopsis
- The study aimed to examine how quinine affects the electroretinograms (ERGs) in children suffering from cerebral malaria (CM) in Malawi, involving 70 ERG tests on 34 children.
- A positive correlation was noted between the time since quinine infusion (quinine elapsed time - QET) and the amplitudes of specific ERG waves, indicating that longer QET led to better photoreceptor function.
- Overall, while quinine seemed to cause a temporary reduction in photoreceptor activity, no signs of eye damage were observed at the doses given to the children.
Article Abstract
To investigate the effects of quinine on the electroretinograms (ERGs) of children with cerebral malaria (CM), we recruited subjects during a single malaria season in Blantyre, Malawi. Seventy ERG investigations were performed, on 34 children with CM. Time recorded from completion of the most recent quinine infusion was termed "quinine elapsed time" (QET). In a subgroup of 16 children, whole-blood quinine concentrations were estimated in a sample of capillary blood, for validation. A significant positive association was found between QET and both maximal-response A-wave amplitude (MRAWA; P=.03) and cone A-wave amplitude (P=.04). Longitudinal analysis demonstrated a significant trend of increasing MRAWA with increasing QET (P=.03). Parenteral quinine administered in therapeutic doses to a pediatric population appears to cause a transient depression in photoreceptor function. No evidence of ocular quinine toxicity was found at the therapeutic doses used.
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| http://dx.doi.org/10.1086/374058 | DOI Listing |
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