Evidence mapPaperPMID 30617468Full record

ArticleEuropean journal of applied physiology2019

Cuff inflation time significantly affects blood flow recorded with venous occlusion plethysmography.

Rehan T Junejo, Clare J Ray, Janice M Marshall

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Article in European journal of applied physiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

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8citing papers in PubMed
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8 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Rehan T JunejoInstitute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.ORCID http://orcid.org/0000-0002-0670-8339
Clare J RayInstitute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.ORCID http://orcid.org/0000-0001-7410-1013
Janice M MarshallInstitute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK. j.m.marshall@bham.ac.uk.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe tested whether the values of limb blood flow calculated with strain-gauge venous occlusion plethysmography (VOP) differ when venous occlusion is achieved by automated, or manual inflation, so providing rapid and slower inflation, respectively.

methodIn 9 subjects (20-30 years), we calculated forearm blood flows (FBF) values at rest and following isometric handgrip at 70% maximum voluntary contraction (MVC) when rapid, or slower inflation was used.

resultRapid and slower cuff inflation took 0.23 ± 0.01 (mean ± SEM) and 0.92 ± 0.02 s, respectively, reflecting the range reported in published studies. At rest, FBF calculated from the 1st cardiac cycle after rapid and slower inflation gave similar values: 10.5 ± 1.4 vs. 9.6 ± 1.3 ml dl

conclusionThese findings confirm that the 1st cardiac cycle following venous occlusion should be used when calculating FBF using VOP and, but importantly, indicate that cuff inflation should be almost instantaneous; just ≥ 0.9 s leads to substantial underestimation, especially at high flows.

Indexed as

PlethysmographyAdultBlood Flow VelocityExerciseFemaleForearmHand StrengthHemodynamicsHumansMaleRegional Blood FlowYoung AdultBlood flowCuff inflationHyperaemiaVenous occlusion plethysmography

Identifiers

PMID30617468
PMCPMC6394686

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.