Serum LD-1 activity in suspected acute myocardial infarction.

  title={Serum LD-1 activity in suspected acute myocardial infarction.},
  author={W. Gerhardt and Stefan Hofvendahl and Lars Ljungdahl and Jonas Waldenstr{\"o}m and Nils Tryding and Thomas Sven Pettersson and Oscar O. Ohlsson},
  journal={Clinical chemistry},
  volume={29 6},
We have studied the diagnostic value of measuring lactate dehydrogenase (LD) isoenzyme 1 in serum of 331 cases of suspected acute myocardial infarction (AMI). At a discriminatory level of 200 U/L (Scandinavian Committee on Enzymes, recommended method for the determination of LD) LD 1 verified the diagnosis in 96% of the AMI cases and excluded it in 96% of the not-AMI cases when samples were drawn 24-72 h after onset of pain. The correlation between 24-h S-LD-1 and 16-h S-CK B activities was 0… CONTINUE READING

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