Evidence map›Paper›PMID 29246828›Full record

ReviewHeart rhythm2018

The pathophysiology of the vasovagal response.

David L Jardine, Wouter Wieling, Michele Brignole, Jacques W M Lenders, Richard Sutton, Julian Stewart

Open access · greenAbstract readReview
In one paragraph

Review in Heart rhythm, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed
11.2field-weighted citation impact, top 1% 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

77 citing papers in PubMed, 150 citations in OpenAlex.

  1. Sensor detection and pacing for impending reflex syncope.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2026
    Review
  2. Cardioneuroablation: A Comprehensive Review.Reviews in cardiovascular medicine · 2026
    Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Now is the time to take syncope seriously.The British journal of cardiology · 2026
    Article
  9. Article
  10. Progressive baroreflex dysfunction and hypotension preceding VVS: a vicious cycle?Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Mesenteric blood flow and muscle sympathetic nerve activity during vasovagal syncope.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2025
    Article
  20. Article

17 more citing papers are in PubMed but not listed here.

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

6 authors at 6 institutions in 6 countries.

David L JardineDepartment of General Medicine, Christchurch Hospital, University of Otago, Christchurch, New Zealand. Electronic address: david.jardine@cdhb.govt.nz.
Wouter WielingDepartment of Internal Medicine, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands.
Michele BrignoleDepartment of Cardiology, Arrhythmologic Centre, Ospedali del Tigullio, Lavagna, Italy.
Jacques W M LendersDepartment of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands; Department of Internal Medicine III, Technical University Dresden, Dresden, Germany.
Richard SuttonNational Heart and Lung institute, Imperial College, London, United Kingdom.
Julian StewartDepartments of Pediatrics, Physiology, and Medicine, New York Medical College, Valhalla, New York.
Imperial College London · GBNew York Medical College · USPresidio Ospedaliero · ITTechnische Universität Dresden · DEUniversity of Amsterdam · NLUniversity of Otago · NZ

Funding

Cardiovagal baroreflex deficits impair neurovascular coupling and cognition in Postural Tachycardia SyndromeR01HL134674 · NHLBI · NEW YORK MEDICAL COLLEGE · PI STEWART, JULIAN M · 2017 to 2020
$2.5M
Mechanisms of Vasovagal SyncopeR01HL112736 · NHLBI · NEW YORK MEDICAL COLLEGE · PI STEWART, JULIAN M · 2013 to 2016
$2.1M
NHLBI NIH HHS R01 HL112736NHLBI NIH HHS R01 HL134674
6 · The paper itself

Abstract

In part I of this study, we found that the classical studies on vasovagal syncope, conducted in fit young subjects, overstated vasodilatation as the dominant hypotensive mechanism. Since 1980, blood pressure and cardiac output have been measured continuously using noninvasive methods during tilt, mainly in patients with recurrent syncope, including women and the elderly. This has allowed us to analyze in more detail the complex sequence of hemodynamic changes leading up to syncope in the laboratory. All tilt-sensitive patients appear to progress through 4 phases: (1) early stabilization, (2) circulatory instability, (3) terminal hypotension, and (4) recovery. The physiology responsible for each phase is discussed. Although the order of phases is consistent, the time spent in each phase may vary. In teenagers and young adults, progressive hypotension during phases 2 and 3 can be driven by vasodilatation or falling cardiac output. The fall in cardiac output is secondary to a progressive decrease in stroke volume because blood is pooled in the splanchnic veins. In adults a fall in cardiac output is the dominant hypotensive mechanism because systemic vascular resistance always remains above baseline levels.

Indexed as

ElectrocardiographyHemodynamicsHumansSyncope, VasovagalTilt-Table TestSplanchnic capacitanceSympathetic nervesTilt testVasovagal syncope

Identifiers

PMID29246828
PMCPMC5984661
OpenAlexW2773369989

What OpenQuestion holds

Textmetadata
LicenceTDM
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.