[Various systems of long-term ECG (Holter) monitoring in clinical practice].

Seven various 24-hour ambulatory ECG systems from six producers (Trendsetter 9000A--Del Mar Avionics, Epicardia HC and PC--Medicomp, Epicardia FD--Hellige, Spacelabs 90,101-Spacelabs, Medilog 4000--Oxford, Laser Holter 8000T--Marquette) were used over a 4-year period to gather the experience with a total of 449 24-hour ECG recordings. The quality of the automatic analysis, the mode of access to the ECG data, control and correction possibilities, operator time consumption, report quality, costs and availability of consumeables were individually evaluated. In the country's specific conditions/shortage of some type of consumeables), Laser Holter 8000T was regarded as the most useful device followed by Epicardia FD and Medilog 4000.