Withings SCANWATCH HWA09 Quick Installation Manual page 27

Scan monitor

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What is an ECG?

How ScanWatch obtains an ECG:

- ECG, or electrocardiogram, is the graphical representation of the electrical activity of the heart. It can

detect certain cardiovascular pathologies.

- With each heartbeat, an electrical wave travels through your heart. This wave causes your heart to

contract and pump blood.

- In a doctor's office, a standard 12-lead ECG is usually taken. This 12-lead ECG records electrical signals

from different angles in the heart to produce twelve different waveforms. ScanWatch measures a waveform

simi lar to one of those twelve waveforms. This configuration is known as single-lead ECG.

- A single-lead ECG is able to provide information about heart rate and heart rhythm and enables

classification of Atrial Fibrillation (AFib). However, a single-lead ECG cannot be used to identify some other

conditions, like heart attacks. Single-lead ECGs are often prescribed by doctors for people to wear at home

or within the hospital so that the doctor can get a better look at the underlying rate and rhythm of the

heart.

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