What question did this study set out to answer?

This research aims to develop a mathematical model to characterize diurnal blood pressure variation more accurately.

June 1, 1992HypertensionOpen Access

A new model for diurnal blood pressure profiling. Square wave fit compared with conventional methods.

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Why the study?

Does a square wave fit model better characterize diurnal blood pressure variation compared to conventional methods in patients with essential hypertension?

Population

23 hospitalized patients with mild-to-moderate untreated essential hypertension

Comparison

Square wave fit mathematical model for diurnal… vs Conventional methods including segmentation by…

Design

Other

Follow-up

24-hour

Authors

RIR N IdemaErasmus MC EGE. S. GelsemaUniversity Medical Center Groningen GWG. J. WentingErasmus MC

Discussion

Member takes

Implication

May refine objective BP rhythm assessment in hypertension; leaves open any impact on risk stratification or therapy.

Key Points

This research aims to develop a mathematical model to characterize diurnal blood pressure variation more accurately.
Analyzed 24-hour continuous intra-arterial blood pressure measurements in 23 hospitalized patients.
Developed a square wave fit model to assess circadian variance and compared its performance to conventional methods.
Utilized least-square error criteria for individual segmentation of blood pressure profiles.
Square wave fit accounted for 66% of circadian variance in mean arterial pressure, exceeding Fourier model (59%) and clock time analysis (50%).
Minnesota Cosinor method provided the poorest description of variance at 47%.
Observer bias in visual segmentation highlighted the need for more objective assessment tools.

Structured PICO

Does a square wave fit model better characterize diurnal blood pressure variation compared to conventional methods in patients with essential hypertension?

Population

23 hospitalized patients with mild-to-moderate untreated essential hypertension

Intervention

Square wave fit mathematical model for diurnal blood pressure profiling

Comparator

Conventional methods including segmentation by visual inspection, clock time, Minnesota Cosinor Method, and harmonic modeling

Outcome

Fraction of circadian variance of mean arterial pressure accounted for by the modelsurrogate

A square wave fit model provides a simpler and more accurate description of circadian blood pressure variance than conventional methods.

Cite This Study

Idema et al. (1992) studied this question.

synapsesocial.com/papers/6a75928efd25b6479067a451 https://doi.org/10.1161/01.hyp.19.6.595

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A new model for diurnal blood pressure profiling. Square wave fit compared with conventional methods.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

A new model for diurnal blood pressure profiling. Square wave fit compared with conventional methods.

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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