May 1, 1997HeartOpen Access

Reproducibility of the signal averaged P wave: time and frequency domain analysis.

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Population

30 patients total

Design

Cohort

Follow-up

up to one week

Authors

PSPeter J. StaffordImperial College London JCJ. CooperNetComposites (United Kingdom)JFJ.C. FothergillUniversity College of the North

Discussion

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Implication

P wave duration reproducibility supports serial monitoring; leaves open validity of spatial velocity or energy measures in research.

Structured PICO

Population

30 patients total (20 patients: 10 with documented paroxysmal atrial fibrillation and 10 normal controls studied on three occasions; plus a further 10 patients studied on a single occasion)

Intervention

Signal averaged P wave recordings (time and frequency domain analysis)

Outcome

Reproducibility of P wave duration, spatial velocity, and energies contained in frequency bands from 20, 30, and 60-150 Hz of the P wave spectrumsurrogate

P wave duration derived from signal averaging is reproducible in the short and medium term, but frequency domain and spatial velocity analyses are poorly reproducible due to spontaneous variation in P wave morphology.

Cite This Study

Stafford et al. (1997) studied this question.

synapsesocial.com/papers/6a718b1af44fa9f079df5330 https://doi.org/10.1136/hrt.77.5.412

Topics

Atrial fibrillation Persistent AF management

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Reproducibility of the signal averaged P wave: time and frequency domain analysis.

Discussion

Member takes

Implication

Structured PICO

Cite This Study

Topics

Reproducibility of the signal averaged P wave: time and frequency domain analysis.

Discussion

Member takes

Implication

Structured PICO

Cite This Study

Also Consider

Topics

Also Consider