(Continuous Electrocardiogram, Continuous ECG, Ambulatory ECG
Monitoring) What is a Holter monitor? The Holter monitor is a
type of electrocardiogram (ECG or EKG) used to monitor the ECG
tracing continuously for a period of 24 hours or longer. A
standard or "resting" ECG is one of the simplest and fastest
procedures used to evaluate the heart. Electrodes (small,
plastic patches) are placed at certain locations on the chest
and abdomen. When the electrodes are connected to an ECG machine
by lead wires, the electrical activity of the heart is measured,
interpreted, and printed out for the doctor's information and
further interpretation. When symptoms, such as dizziness,
fainting, low blood pressure, prolonged fatigue, and
palpitations, continue to occur without a definitive diagnosis
obtained with a resting ECG, your doctor may request an ECG
tracing to be run over a long period of time, using the Holter
monitor. Certain dysrhythmias and arrhythmias (abnormal heart
rhythms), which can cause the symptoms noted a