The Claim

Patients with vasovagal syncope confirmed by head-up tilt test have significantly lower baseline Index of Cardiac Electrophysiological Balance (ICEB) and corrected ICEB (ICEBc) than healthy controls, after adjustment for age, sex, and blood pressure.

Source: Index of cardiac electrophysiological balance in patients with vasovagal syncope confirmed by head-up tilt test

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
44score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

People diagnosed with vasovagal syncope through head-up tilt testing show measurably lower values of cardiac electrophysiological balance markers compared to healthy individuals, even when accounting for age, sex, and blood pressure.

See the scientific wording

Patients with vasovagal syncope confirmed by head-up tilt test exhibit significantly lower baseline Index of Cardiac Electrophysiological Balance (ICEB) and corrected ICEB (ICEBc) compared to healthy controls, even after adjusting for age, sex, and blood pressure, suggesting an association between reduced ventricular depolarization-repolarization balance and the condition.

Why this might work

In people with vasovagal syncope, the nervous system keeps the heart under constant parasympathetic control, which speeds up the heart's recovery phase after each beat. This makes the time between the start and end of the heart's electrical signal shorter, while the time it takes to start the signal stays the same. This imbalance lowers a measure of electrical harmony in the heart, which is linked to fainting episodes.

Supported mechanismbased on 1 study

What the research says

1 study

  1. Study: Index of cardiac electrophysiological balance in patients with vasovagal syncope confirmed by head-up tilt test

    People who faint from vasovagal syncope have a measurable difference in their heart’s electrical timing at rest compared to people who don’t faint — and this difference stays true even when accounting for age, sex, or blood pressure.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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