[Holter monitoring. Value in silent myocardial ischemia].

The inclusion of the digital system in the Holter recording and analyzing systems and the development of micro-computers have multiplied the possibilities and increased the accuracy of this technique. Analysis of the ST segment has resulted in a definition of the silent myocardial ischaemia syndrome. It has also made it possible to evaluate the importance of myocardial ischaemia in daily life and to assess the efficacy of anti-ischaemic treatments.