To assess the relationship between severity of malaria and progression of s
keletal muscle damage during initial treatment, we studied 28 Thai adults w
ith slide-positive falciparum malaria. Six had uncomplicated malaria (Group
1), 12 had severe non-cerebral malaria (Group 2) and ten had cerebral mala
ria (Group 3). There were no significant differences between baseline serum
creatine kinase (CK) levels in the three groups (P = 0.071). There was no
change in serum CK during the first 48 h of treatment in Group 1 cases. In
Group 2 patients, the median peak serum CK was nine times that at baseline
while in Group 3, serum CK peaked at a median concentration 20 times that a
t presentation. In Groups 2 and 3, the peak serum CK occurred at least 24 h
after presentation in more than half the patients, and was independent of
intramuscular injections and convulsions during initial therapy. These long
itudinal data suggest that: (i) severe falciparum malaria is associated wit
h skeletal muscle damage that increases during initial therapy especially i
n patients with coma; (ii) the effect of other major treatment or infection
-specific factors that are associated with muscle damage does not diminish
this relationship; and (iii) cerebral malaria in combination with a high ba
seline and rising serum CK should pre-empt monitoring and management strate
gies aimed at preserving renal function including renal dialysis. (C) 2000
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