Improving aspirin prophylaxis after myocardial infarction in primary care: collaboration in multipractice audit between primary care audit group and health authority.

The Antiplatelet Trialists’ Collaboration provided convincing evidence of benefits of aspirin prophylaxis in patients after myocardial infarction,1 but many such patients do not receive it.2 3 Since most patients are followed up in primary care, practices need to implement methods of improving aspirin prophylaxis in these patients. The aim of this multipractice audit led by a primary care audit group was to assess and improve levels of prescribing of prophylactic aspirin for patients after myocardial infarction in Leicestershire.