Why the study?
Despite years of research, many details regarding the formation of the atrioventricular conduction axis remain uncertain.
Population
Human embryos and human foetal hearts between 10 and 30 weeks of gestation
Design
Observational embryological and histological study
Key result
The atrioventricular conduction axis originates from the primary interventricular ring, with the definitive node recognizable only after muscularization of the true second atrial septum.
Authors
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Informs models of congenital conduction defects; leaves open clinical translation pending human validation.
Observational
This study clarifies the developmental timeline and anatomical origins of the atrioventricular conduction axis in human embryos and foetuses.
Hikspoors et al. (2021) conducted an observational in Embryonic heart development. The atrioventricular conduction axis originates from the primary interventricular ring, with the definitive node recognizable only after muscularization of the true second atrial septum.
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