[Environment and permanent cardiac pacing].

The increasing technological sophistication of cardiac pacemakers make them potentially more vulnerable to electrical interference. The clinical consequence are of variable importance depending on the type of pacemaker and the nature of the interference. Electrical interference is present in the domestic, industrial and, above all, the medical environment. Apart from controlling the sources of emission, prevention requires standards of protection for the casing and electronic circuitry. Patient education remains primordial.