The effect of quinine on the electroretinograms of children with pediatric cerebral malaria

Benedetto Falsini, Charles Riva, Jonathan Lochhead, Armand Movaffaghy, Peter A. Winstanley, Edward K. Mberu, Charles E. Riva, Malcolm E. Molyneux, Terrie E. Taylor, Simon P. Harding

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)1342-1345
Number of pages4
JournalJournal of Infectious Diseases
Publication statusPublished - 2003

Keywords

  • Cerebral Malaria
  • Electroretinogram
  • Quinine

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