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11. Useful Information
What is Blood Pressure?
Blood pressure is a measure of the force of blood flowing against the walls of
the arteries. Arterial blood pressure is constantly changing during the course of
the heart’s cycle.
The highest pressure in the cycle is called the Systolic Blood Pressure; the lowest
is the Diastolic Blood Pressure. Both pressures, the Systolic and Diastolic, are
necessary to enable a physician to evaluate the status of a patient’s blood pressure.
What is Arrhythmia?
Arrhythmia is a condition where the heartbeat rhythm is abnormal due to flaws in
the bio-electrical system that drives the heartbeat. Typical symptoms are skipped
heartbeats, premature contraction, an abnormally rapid (tachycardia) or slow
(bradycardia) pulse.
What is Afib?
Atrial fibrillation (also called Afib or AF) is a quivering or irregular heartbeat
(arrhythmia) that can lead to blood clots, stroke, heart failure and other heart-
related complications. During atrial fibrillation, the heart’s two upper chambers (the
atria) beat chaotically and irregularly — out of coordination with the two lower
chambers (the ventricles) of the heart. Episodes of atrial fibrillation can come and
go, or you may develop atrial fibrillation that doesn’t go away and may require
treatment.
Afib indicator function detects the possibility of Afib with an accuracy of 94.2%
(with sensitivity of 95.5% and specificity of 93.8%) as demonstrated in the study*
with Single-lead ECG as reference measurement.
*M. Ishizawa, T. Noma, T. Minamino et al., Multiple measurements with
automated blood pressure monitor can detect atrial fibrillation with high
sensitivity and specificity in general cardiac patients, ESC Congress 2018
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