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Ambulatory Electrocardiographic (Holter) Monitoring
Excerpt
Ambulatory electrocardiographic (ECG) (Holter) monitoring was introduced more than 20 years ago, providing a method for recording a patient's cardiac rhythm for 24 or more hours. Within the past 10 years, technologic advances in equipment have provided the capability for monitoring changes in the ST segment throughout a patient's daily activities [1.0].
Equipment Recording Systems
Most systems use reel-to-reel tapes or cassettes to record AM or FM analog signals and have calibration and event marker controls and an internal clock. Newer devices convert the signal to a digital format for storage. Intermittent recorders are patient- or time-activated recorders that store
This 100-word excerpt has been provided in the absence of an abstract.
Acknowledgments
Acknowledgments: The American College of Physicians thanks Drs. DiMarco and Philbrick and many internists, cardiologists, and surgeons for manuscript review.
Article and Author Information
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↵* This paper was authored by John P. DiMarco, MD, PhD; and John T. Philbrick, MD; and was developed for the Health and Public Policy Committee by the Clinical Efficacy Assessment Subcommittee: Lockhart B. McGuire, MD, Chair; Paul Calabresi, MD; Ernest L. Mazzaferri, MD; Albert G. Mulley, Jr., MD; Charles C. Smith, Jr., MD; Harold J. Sox, Jr., MD; Earl P. Steinberg, MD. Members of the Health and Public Policy Committee were: Paul F. Griner, MD, Chair; Thomas P. Almy, MD; F. Daniel Duffy, MD; John M. Eisenberg, MD; Richard G. Farmer, MD; Donald I. Feinstein, MD; C. S. Lewis, MD; Lockhart B. McGuire, MD; Steven A. Schroeder, MD; Lynn B. Tepley, MD; Quentin D. Young, MD. This paper was approved by the Board of Regents on 15 September 1989.
- © 1990 American College of Physicians
