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EN-61
ScanWatch
v1.0 | August, 2020
By measuring time intervals on an ECG, practitioners can find out if this electricity
travel is too slow, normal, too fast, or even irregular. Such indicators can point to
an oversized or overworked heart.
Which conditions can detect Withings ECG devices?
ECGs can detect a range of conditions, from angina pectoris to severe heart
attacks. Withings ECG devices focus on detecting atrial fibrillation. If you believe
you are having a heart attack, contact emergency services.
Results you may see
Normal Sinus Rhythm
A sinus rhythm means your heart is beating in a uniform pattern.
Atrial Fibrillation
Atrial fibrillation occurs when the two upper chambers of the heart move
chaotically instead of pumping regularly. The P wave on the ECG disappears and
is replaced by a jumpy baseline. The QRS complex occurs at “irregularly irregular”
intervals.
Inconclusive
An inconclusive result means the recording can’t be classified. This can happen
for many reasons:
• Heart rate is low:The heart rate obtained cannot be classified as a recording.
To obtain full analysis, the heart rate must be above 50 bpm during the
recording.
• Heart rate is high:The recording does not appear to show any signs of atrial
fibrillation, but a complete diagnosis is not possible for a heart rate above 100
bpm. To obtain full analysis, the heart rate must be below 100 bpm during the
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