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June 9, 1975

Telemetry and Coronary Heart Disease

Author Affiliations

Beverly Hills, Calif

JAMA. 1975;232(10):1007. doi:10.1001/jama.1975.03250100009002

To the Editor.—  The editorial entitled "Telemetry—Best Detective in Tracing CHD" (229:1475, 1974) refers to the application of Holter monitoring in the detection of coronary heart disease.It would appear that the use of the term "telemetry" is confusing, in that the Holter system consists of a continuous electrocardiogram recorded on a small portable tape recorder through a direct heart wire attachment to the chest leads. There is no radio transmission of the signal to a radio receiver, such as occurs with usual telemetry equipment. This is a great advantage to the Holter system since the distance limitations of telemetry equipment and the vagaries of telemetry reception are avoided. We are certainly in full agreement with the medical content of the editorial.