Why the study?
What is the tissue origin of elevated serum enzyme activities after direct-current countershock?
What is the tissue origin of elevated serum enzyme activities after direct-current countershock?
Elevated serum enzymes following direct-current countershock originate from skeletal muscle rather than myocardial injury.
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Clinicians should not interpret post-countershock CPK rises as myocardial injury; this Level 3 evidence leaves open prospective confirmation.
Konttinen et al. (1969) studied this question.
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