Evidence map›Paper›PMID 28601861›Full record

Observational studyNeonatology2017

Electrical Grounding Improves Vagal Tone in Preterm Infants.

Rohit Passi, Kim K Doheny, Yuri Gordin, Hans Hinssen, Charles Palmer

Registry-linked trialOpen access · bronzeAbstract readObservational Study
In one paragraph

Observational study in Neonatology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05050812 (The Grounded Brain), which is not on this map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 8% 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.

NCT05050812 naunknown statusnot on this mapstarted 2021, after this paper: background citation

The Grounded Brain: How Sleeping Grounded (Earthing) Affects Cognition and Personal Perceptions in Participants With Mild Cognitive Impairment Due to Alzheimer's Disease (MCI/AD)

TypeinterventionalSponsorCalifornia Institute of Integral StudiesRan2021 to 2021Enrolled8ConditionsMild Cognitive Impairment, Chronic InflammationArmsgrounding mat
3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
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

5 authors at 1 institution in 1 country.

Rohit PassiDivision of Newborn Medicine, PennState Health Children's Hospital, Hershey, PA, USA.
Kim K Doheny
Yuri Gordin
Hans Hinssen
Charles Palmer
Pennsylvania State University · US

Funding

Vagal Dysregulation in Neonatal Gastrointestinal PathologyR01DK099350 · NIDDK · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI KOPENHAVER DOHENY, KIM, TRAVAGLI, RENATO ALBERTO · 2014 to 2017
$2.2M
NIDDK NIH HHS R01 DK099350
6 · The paper itself

Abstract

backgroundLow vagal tone (VT) is a marker of vulnerability to stress and the risk of developing necrotizing enterocolitis in preterm infants. Electric fields produced by equipment in the neonatal intensive care unit (NICU) induce an electric potential measurable on the skin in reference to ground. An electrical connection to ground reduces the skin potential and improves VT in adults.

objectivesWe aimed to measure the electric field strengths in the NICU environment and to determine if connecting an infant to electrical ground would reduce the skin potential and improve VT. We also wished to determine if the skin potential correlated with VT.

methodsEnvironmental magnetic flux density (MFD) was measured in and around incubators. Electrical grounding (EG) was achieved with a patch electrode and wire that extended to a ground outlet. We measured the skin potential in 26 infants and heart rate variability in 20 infants before, during, and after grounding. VT was represented by the high-frequency power of heart rate variability.

resultsThe background MFD in the NICU was below 0.5 mG, but it ranged between 1.5 and 12.7 mG in the closed incubator. A 60-Hz oscillating potential was recorded on the skin of all infants. With EG, the skin voltage dropped by about 95%. Pre-grounding VT was inversely correlated with the skin potential. VT increased by 67% with EG. After grounding, the VT fell to the pre-grounding level.

conclusionThe electrical environment affects autonomic balance. EG improves VT and may improve resilience to stress and lower the risk of neonatal morbidity in preterm infants.

Indexed as

Galvanic Skin ResponseHeart RateInfant, PrematureBirth WeightElectric ConductivityElectronics, MedicalEnterocolitis, NecrotizingEnvironmental ExposureGestational AgeHumansIncubators, InfantInfant, NewbornIntensive Care Units, NeonatalProspective StudiesVagus NerveElectrical groundingElectromagnetic fieldsHeart rate variabilityVagal tone

Identifiers

PMID28601861
PMCPMC5542808
OpenAlexW2621564669

What OpenQuestion holds

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Registered trials

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.