The dangers of electrocardiography in general practice.

The use of the electrocardiograph by general practitioners was studied by scrutiny of 100 successive referrals to the Department of Clinical Electrophysiology. 31% of referrals were on patients with chronic, recurrent chest pain and a further 13% were on patients with a recent episode of acute chest pain. The ECG is of limited diagnostic value in patients with chest pain, and it may be both misleading and time-wasting when used inappropriately by general practitioners.