Evidence map›Paper›PMID 29085328›Full record

ReviewFrontiers in neurology2017

Definition and Diagnosis of the Trigeminocardiac Reflex: A Grounded Theory Approach for an Update.

Cyrill Meuwly, Tumul Chowdhury, Nora Sandu, Eugene Golanov, Paul Erne, Thomas Rosemann, Bernhard Schaller

Abstract readReview
In one paragraph

Review in Frontiers in neurology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

33 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Cyrill MeuwlyUniversity Hospital Basel, Basel, Switzerland.
Tumul ChowdhuryDepartment of Anaesthesiology and Perioperative Medicine, University of Manitoba, Winnipeg, MB, Canada.
Nora SanduDepartment of Pathology, University of Buenos Aires, Buenos Aires, Argentina.
Eugene GolanovDepartment of Neurosurgery, Houston Methodist Hospital, Houston, TX, United States.
Paul ErneUniversity Hospital Basel, Basel, Switzerland.
Thomas RosemannDepartment of Primary Care, University of Zurich, Zürich, Switzerland.
Bernhard SchallerDepartment of Primary Care, University of Zurich, Zürich, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe trigeminocardiac reflex (TCR) is defined as sudden onset of parasympathetic dysrhythmias including hemodynamic irregularities, apnea, and gastric hypermotility during stimulation of sensory branches of the trigeminal nerve. Since the first description of the TCR in 1999, there is an ongoing discussion about a more emergent clinical definition. In this work, the author worked out an approach to such an improved definition.

methodsIn this study, a grounded theory approach was used. Literature about TCR was systematically identified through PubMed (MEDLINE), EMBASE (Ovid SP), and ISI Web of Sciences databases from 1/2005 until 8/2015. TCR was defined as a drop of heart rate (HR) below 60 bpm or 20% to the baseline. A grounded theory approach was used to analyze and interpret the data through a synthesis by the researcher's perspectives, values, and positions.

resultsOut of the included studies, the authors formed available data to an update of the understanding of changes in hemodynamic parameters (HR and blood pressure) in a TCR. According to this update, an HR deceleration should be a constant observation to identify a TCR episode while a drop in blood pressure should probably not being fixed to a certain percentage of decrease.

conclusionThe here presented working definition improves our understanding of the TCR. It leads the way to a new understanding of the TCR for a proper clinical definition.

Indexed as

oculocardiacreflextrigeminocardiactrigeminocardiac reflex

Identifiers

PMID29085328
PMCPMC5649131

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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 OpenQuestion graph.