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  • Title: Early identification of acute myocardial infarction and prognosis in relation to mode of transport to hospital.
    Author: Herlitz J, Karlson BW, Liljeqvist JA, Strömbom U, Holmberg S.
    Journal: Am J Emerg Med; 1992 Sep; 10(5):406-12. PubMed ID: 1642702.
    Abstract:
    Of 2,840 consecutive patients who were admitted to the emergency department of a Swedish university hospital due to suspected acute myocardial infarction (AMI), only 25% were reached by the mobile coronary care unit (MCCU), and only 4% simultaneously fulfilled traditional criteria for prehospital thrombolysis (ie, had ST-segment elevation on admission electrocardiogram and a delay time of less than 6 hours). In the subset of patients who fulfilled criteria for a confirmed AMI, 31% were reached by an MCCU and 11% fulfilled criteria for prehospital thrombolysis. Among patients with confirmed AMI, the hospital mortality rate was highest in patients transported by standard ambulance (19%) versus 15% in those transported by an MCCU and 8% in those transported by other means. The authors conclude that AMI patients transported by ambulance are high-risk patients for early death. Prehospital thrombolysis might reduce their rate of mortality. However, according to the authors' experience only a minor fraction of patients are available for prehospital thrombolysis.
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