Cardiac response to water activities in children with Long QT syndrome type 1.

ABSTRACT:

Background

Swimming is a genotype-specific trigger in long QT syndrome type 1 (LQT1).

Objective

To examine the autonomic response to water activities in children and adolescents with LQT1.

Methods

In this cross-sectional study, LQT1 patients were age and sex matched to one healthy control subject. Electrocardiograms (ECGs) were recorded during face immersion (FI), swimming, diving, and whole-body submersion (WBS). Heart rate (HR) and heart rate variability (HRV) was measured. The high frequency (HF) component of HRV was interpreted to reflect parasympathetic activity, while the low frequency (LF) component was interpreted as reflecting the combined influence of sympathetic and parasympathetic activity on autonomic nervous modulation of the heart.

Results

Fiftee

SUBMITTER: Lundstrom A 

PROVIDER: S-EPMC10703314 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature