We have data from Finapress NIBP system recorded through the bitscope easy software for 30 min. We wish to perform an ultra short term blood pressure variability. Could anyone suggest possible tools/methods/literature about the same?
Hi Apar,
you can use this data for univariat and bivariat analyses. Univariat analyses exploit only the beat-to-beat blood pressure (most often systolic BP). The applied processing schemes resemble very much the analysis strategies that are applied for heart rate variability analysis (see e.g. Article Noninvasive measurement of blood pressure variability: Accur...
; this is just one example with a methodological focus; there are many articles, which calculate blood pressure variability parameters in specific applications). Bivariat analyses refer to baroreceptor sensitivity, i.e. the interdepencency of heart rate and blood pressure variability on short time scales (Article Comparison of various techniques used to estimate spontaneou...
).Greetings, Sebastian
Hi Apar,
In addition to what Sebastian has mentioned, always start from the research question, otherwise you'll be lost among several indexes of BP variability which have different underlying physiological mechanisms.
I have asked similar questions before and the discussion may be helpful
https://www.researchgate.net/post/How_to_perform_spectral_analysis_for_blood_pressure_variability
https://www.researchgate.net/post/How_to_perform_transfer_function_analysis_of_respiratory_and_cardiovascular_time_series
The beatscope software can give you beat by beat systolic and diastolic blood pressure and some other parameters like the beat time, etc but pay attention that the time of the beat in beatscope is diastolic time not systolic and this may matter when you want to perform baroreflex analysis. If you have simultaneous ECG I recommend to use ECG instead of pulse to extract beat times for baroreflex analysis. If you needed help in performing baroreflex analysis let me know we had several experiments with such measure as the outcome and developed MATLAB algorithms for processing blood pressure signal and performing baroreflex analysis.
Good Luck
Ali
There are various telemetry devices from datasci.com that can measure BP, ECG, or both. The associated analysis application computes variability.
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