Acute effects of cigarette smoking on the QT interval in healthy smokers.
This study assesses the effect of a first cigarette smoked in the morning on the QT interval duration in healthy habitual smokers after not smoking overnight. This study demonstrates that although after cigarette smoking the QT(Bc) values increase, the QT(Fc) and QT(Lc) values remained unchanged, and an increased sympathetic response was evident. The discrepancies between the results seen by different QT correction formulas emphasize the importance of selecting an accurate method for heart rate correction when evaluating and interpreting alterations in QT values.
Andrássy
Gábor
G
Kardiológiai Osztály, Szent Ferenc Kórház, Budapest, Hungary. SztFKorhKardalap@axelero.hu
Szabo
Attila
A
Dunai
Andrea
A
Simon
Eszter
E
Nagy
Tímea
T
Trummer
Zsófia
Z
Tahy
Adám
A
Varro
András
A
D000328:Adult; D001794:Blood Pressure; D004562:Electrocardiography; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D012907:Smoking / Q000503:physiopathology*