ABSTRACT

Introduction Indications Components of an ambulatory ECG monitoring laboratory Recording devices and storage of transmitted data Continuous ambulatory ECG monitoring Intermittent and memory loop AECG monitoring Artifacts and errors Scanning and analysis techniques Personnel, training requirements, and quality control Recorder maintenance and preparation Preparation Selection of lead system Electrode placement Preparation of electrode site Patient instruction, pre-examination procedures Removal of the Holter recorder Device selection and duration of recording for AECG monitoring Conclusions

INTRODUCTION Cardiac arrhythmias are common disorders with a spectrum ranging from

benign premature atrial conditions (PACs) to lethal ventricular fibrillation (VF) causing stroke or sudden cardiac death. The occurrence of these arrhythmias during a brief physical examination or a standard 12-lead electrocardiogram (ECG) is low. In addition, certain cardiac events are seen only during sleep, exercise or mental and emotional stress, thus requiring longer periods of monitoring. ECG recordings for extended periods can provide an accurate diagnosis and symptom-arrhythmia correlation.