Many of the terms explained here were coined during the development of BPER. They describe what actually happens between two blood pressure readings – explained at the source.
also: BPER
A blood pressure event recorder does not record a single blood pressure value, but the complete course over time. BPER documents the ongoing pulse-pressure curve – beat by beat. This makes visible what a snapshot fundamentally cannot show.
beat-accurate blood pressure measurement
Beat-to-beat blood pressure measurement captures blood pressure from one heartbeat to the next. Conventional devices turn a measurement into two numbers – systolic and diastolic – an average of a brief moment. Beat-to-beat recording, by contrast, preserves the dynamics between the beats and makes short-term fluctuations traceable.
BDII · second-order variability
Blood pressure fluctuates on two levels. Slow first-order fluctuations follow the daily rhythm – higher in the morning, lower at night. Second-order blood pressure variability (BDII), by contrast, refers to the subtle changes in the short-term pulse-pressure rhythm from heartbeat to heartbeat. It only becomes visible when the continuous pressure curve is recorded – not a single value.
The pulse-pressure rhythm describes the individual interplay of pulse and pressure over the ongoing cardiac cycle. It is the bridge between the electrical activity of the heart and the mechanical work of the circulation – in other words, what actually arrives in the vascular system. This rhythm cannot be read from a single number; it only shows up in the recorded curve.
An apparent contradiction with a clear meaning: continuous within each measurement – the pressure curve is recorded without gaps – and intermittent across the day, because such recordings are repeated at different times. This creates a realistic picture without having to wear anything on your body permanently.
For a measurement to be precise, it has to be properly calibrated. The calibration logic behind BPER uses controlled pressure variations – without any physical activity required – to adjust the measurement. The guiding idea: measure precisely first, then interpret. Because a plausible value is not yet a precise reading.
Measure first. Then interpret. Not the other way round.
“The wave”
With every heartbeat, a pressure wave travels through the arteries. Its shape reveals more than two numbers: how the heart is working and how elastically the vessels respond. BPER records this waveform instead of reducing it to an average – making the mechanical side of circulation visible.
Five steps for your next doctor’s appointment – plus a printable template for noting down your observations.
This is how it usually sounds
“I felt strange again last night. A kind of stumble, and it gave me a fright.”
“Let’s keep an eye on it.”
The guide shows you how to describe it instead and which questions to ask. What is usually missing are the numbers from exactly those two minutes – and those are what the BPER records, beat by beat.
BPER records the complete pulse-pressure curve – beat by beat. For everyone who wants not only to measure their blood pressure, but to understand it.
Configure now