Risk of death from heart attack varies according to when patients arrive at hospital, study finds

doi:10.1136/bmj.331.7514.422-h

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David Spurgeon

Quebec

Restoration of normal blood flow is delayed and risk of death is higher for some heart attack patients if they arrive at hospital between 5pm and 7am or on a weekend, a new study shows.

This is the finding of a study from the US healthcare organisation Kaiser Permanente, headed by Dr. David J. Magid, Clinical Research Unit, Kaiser Permanente Denver. It looked at data on 68 439 patients with an electrocardiography finding known as an ST-segment elevation myocardial infarction who were treated with fibrinolytic drugs at 1015 hospitals across the country and 33 647 patients with the same electrocardiography finding who were treated with …