Electrocardiographic measurements of the QT interval during embryonic development in fertilized chicken eggs
Publikation: Bidrag til tidsskrift › Konferenceartikel › Forskning › fagfællebedømt
Standard
Electrocardiographic measurements of the QT interval during embryonic development in fertilized chicken eggs. / Bhuiyan, Tanveer A.; Sevcencu, Cristian; Struijk, Johannes J.; Kanters, Jorgen K.; Graff, Claus.
I: Computing in Cardiology, Bind 43, 7868927, 2016, s. 1053-1055.Publikation: Bidrag til tidsskrift › Konferenceartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - GEN
T1 - Electrocardiographic measurements of the QT interval during embryonic development in fertilized chicken eggs
AU - Bhuiyan, Tanveer A.
AU - Sevcencu, Cristian
AU - Struijk, Johannes J.
AU - Kanters, Jorgen K.
AU - Graff, Claus
PY - 2016
Y1 - 2016
N2 - The fertilized chicken egg (embryonic chicken) shares the basic mechanism of electrophysiology and ionic currents with mammalian hearts. However, little is known about the cardiac repolarization process during embryo growth. We examined if the electrocardiographic QT interval was dependent on the stage of embryonic development. ECGs were recorded from 4 fertilized chicken eggs for 6 days (day 13 to day 18). Eggs were kept in an incubator with a temperature of 37.4°C. Chronic electrodes were implanted and a 5-minute ECG was recorded each day. Three measurements were made in noise free segments: Heart rate, QT interval, and the Fridericia corrected QT interval (QTcF), and an average value was calculated. The QTcF interval decreased during embryo development. On day 18, QTcF was shorter than QTcF on day 13: 341 ms (95% CI: 332 ms to 349 ms) versus 417 (95% CI: 325 ms to 509 ms), p=0.037. In fertilized chicken eggs, the repolarization process changes during development. This property makes the chicken embryo an interesting model for the study of drug effects on the QT interval at different stages of embryo development.
AB - The fertilized chicken egg (embryonic chicken) shares the basic mechanism of electrophysiology and ionic currents with mammalian hearts. However, little is known about the cardiac repolarization process during embryo growth. We examined if the electrocardiographic QT interval was dependent on the stage of embryonic development. ECGs were recorded from 4 fertilized chicken eggs for 6 days (day 13 to day 18). Eggs were kept in an incubator with a temperature of 37.4°C. Chronic electrodes were implanted and a 5-minute ECG was recorded each day. Three measurements were made in noise free segments: Heart rate, QT interval, and the Fridericia corrected QT interval (QTcF), and an average value was calculated. The QTcF interval decreased during embryo development. On day 18, QTcF was shorter than QTcF on day 13: 341 ms (95% CI: 332 ms to 349 ms) versus 417 (95% CI: 325 ms to 509 ms), p=0.037. In fertilized chicken eggs, the repolarization process changes during development. This property makes the chicken embryo an interesting model for the study of drug effects on the QT interval at different stages of embryo development.
UR - http://www.scopus.com/inward/record.url?scp=85016109464&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85016109464
VL - 43
SP - 1053
EP - 1055
JO - Computing in Cardiology
JF - Computing in Cardiology
SN - 0276-6574
M1 - 7868927
T2 - 43rd Computing in Cardiology Conference, CinC 2016
Y2 - 11 September 2016 through 14 September 2016
ER -
ID: 228250302