Delay in the diagnosis of spermatic cord torsion (SCT) is still a sign
ificant cause of testicular loss in children. The aim of this experime
ntal study was to assess the diagnostic Value of serum creatine kinase
(CK) in the early period following SCT. Forty male rats were assigned
randomly into five similar groups: group A, control; group B, sham, r
ight testis exposed, manipulated, and blood sampling at 6th h; group C
, right SCT, blood sampling at 2nd h; group D, right SCT, blood sampli
ng at 4th h; and group E, right SCT, blood sampling at 6th h. CK and i
ts isoenzymes were measured in the sera of all animals. All testes wer
e removed and examined histopathologically. Significant increases in s
erum CK levels compared to control and sham groups were observed at 4
and 6 h following SCT. The major increase in CK was observed in the CK
-MM isoenzyme fraction. Histologic pictures showed varying degrees of
edema, Vascular congestion, and hemorrhage in the testicular tissue, b
ut no necrosis in any of the study groups. These results showed that s
erum CK levels in rats in the early period following SCT increase sign
ificantly before necrosis of testicular tissue. This may be of value a
s a diagnostic test, to corroborate findings from clinical studies.