Mechanical QT and JT intervals by M-mode echocardiography: An extrapolation from the concurrent electrocardiographic tracings

Conclusions : Based on our findings, we propose to measure the averaged mechanical QT and JT intervals by using an angled M-mode tracing of the aortic and mitral valve in five consecutive beats in the parasternal long-axis view. This is the first study on mechanical QT and JT intervals in healthy children. The study opens the horizons into the in-utero diagnosis of congenital long QT syndrome by measuring fetal QT and JT intervals using the widely available M-mode echocardiography

Source: Annals of Pediatric Cardiology - January 6, 2023 Category: Cardiology Authors: Elaheh Malakan Rad Hamidreza Mirzaei Ilali Mohammad-Taghi Majnoon Aliakbar Zeinaloo Source Type: research