Fourlead
Fourlead is a term used to describe a configuration in electrocardiography that employs four surface electrodes to monitor the heart’s electrical activity. It is commonly used for basic rhythm detection, heart rate monitoring, and simple arrhythmia screening, particularly in settings where a full 12-lead ECG is unavailable or impractical, such as bedside monitoring, emergency departments, ambulatory devices, or wearable sensors.
Configuration and operation: A four-lead setup attaches four electrodes to the patient, with the device determining
Applications and limitations: Four-lead systems are valued for simplicity, speed, and portability. They enable continuous bedside
Variations and devices: Four-lead configurations appear in a range of devices, from inpatient monitors to wearable
See also: Electrocardiography, Lead (electrophysiology), 12-lead ECG, Cardiac monitoring.