Evidence map›Paper›PMID 29114227›Full record

ArticleFrontiers in physiology2017

Non-linear Heart Rate and Blood Pressure Interaction in Response to Lower-Body Negative Pressure.

Ajay K Verma, Da Xu, Amanmeet Garg, Anita T Cote, Nandu Goswami, Andrew P Blaber, Kouhyar Tavakolian

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.2field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 22 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 3 countries.

Ajay K VermaDepartment of Electrical Engineering, University of North Dakota, Grand Forks, ND, United States.
Da XuDepartment of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, Canada.
Amanmeet GargDepartment of Engineering Science, Simon Fraser University, Burnaby, BC, Canada.
Anita T CoteSchool of Human Kinetics, Trinity Western University, Langley, BC, Canada.
Nandu GoswamiInstitute of Physiology, Medical University of Graz, Graz, Austria.
Andrew P BlaberDepartment of Electrical Engineering, University of North Dakota, Grand Forks, ND, United States.
Kouhyar TavakolianDepartment of Electrical Engineering, University of North Dakota, Grand Forks, ND, United States.
Simon Fraser University · CAUniversity of North Dakota · USMedical University of Graz · ATWestern University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Early detection of hemorrhage remains an open problem. In this regard, blood pressure has been an ineffective measure of blood loss due to numerous compensatory mechanisms sustaining arterial blood pressure homeostasis. Here, we investigate the feasibility of causality detection in the heart rate and blood pressure interaction, a closed-loop control system, for early detection of hemorrhage. The hemorrhage was simulated via graded lower-body negative pressure (LBNP) from 0 to -40 mmHg. The research hypothesis was that a significant elevation of causal control in the direction of blood pressure to heart rate (i.e., baroreflex response) is an early indicator of central hypovolemia. Five minutes of continuous blood pressure and electrocardiogram (ECG) signals were acquired simultaneously from young, healthy participants (27 ± 1 years,

Indexed as

arterial blood pressurebaroreflexblood losscausalitycentral hypovolemiaheart ratehemorrhage

Identifiers

PMID29114227
PMCPMC5660688
OpenAlexW2765736107

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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 OpenQuestion graph.