C 2020

Development of electrocardiographic sex differences during puberty

ANDRŠOVÁ, Irena, Kateřina HNÁTKOVÁ, Kateřina HELÁNOVÁ and Tomáš NOVOTNÝ

Basic information

Original name

Development of electrocardiographic sex differences during puberty

Authors

ANDRŠOVÁ, Irena (203 Czech Republic, guarantor, belonging to the institution), Kateřina HNÁTKOVÁ (203 Czech Republic), Kateřina HELÁNOVÁ (203 Czech Republic, belonging to the institution) and Tomáš NOVOTNÝ (203 Czech Republic, belonging to the institution)

Edition

1st edition. Neuveden, Sex and Cardiac Electrophysiology: Differences in Cardiac Electrical Disorders Between Men and Women, p. 211-222, 12 pp. 2020

Publisher

Academic Press

Other information

Language

English

Type of outcome

Kapitola resp. kapitoly v odborné knize

Field of Study

30201 Cardiac and Cardiovascular systems

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

Publication form

printed version "print"

References:

RIV identification code

RIV/00216224:14110/20:00118091

Organization unit

Faculty of Medicine

ISBN

978-0-12-817728-0

Keywords in English

AgeIndividual QT/RR patterns; QT/RR hysteresis; QTc interval; QT/RR slope;Sex differences

Tags

International impact, Reviewed
Změněno: 2/2/2021 10:08, Mgr. Tereza Miškechová

Abstract

V originále

This chapter summarizes knowledge about the sex differences of electrocardiogram (ECG) in children and adolescents. The most important part is cardiac repolarization expressed as QT interval on surface QCG. It is well known, that QT interval duration is the same in both sexes in preadolescent children. The QT interval changes during adolescence and finally is longer in females. Until recently only resting QT interval was analysed in few studies in childhood. In this chapter we are presenting investigation of children and adolescents using continuous ECG recordings during postural provocation to obtain individual-specific QT/RR profiles over broad heart rate ranges. We observed QTc prolongation of 0,7 ms per year in females on the contrary to shortening of 0,64 s per year in males. The analyses suggest that hormonal changes are likely causing QTc shortening in adolescent males but are unlikely the principal cause of QTc prolongation in females