Acute electrocardiographic changes during smoking: an observational study.

ABSTRACT: To study the temporal relationship of smoking with electrophysiological changes. Prospective observational study. Tertiary cardiac center. Male smokers with atypical chest pain were screened with a treadmill exercise test (TMT). A total of 31 such patients aged 49.8±10.5 years, in whom TMT was either negative or mildly positive were included. Heart rate variability (HRV) parameters of smokers were compared to those of 15 healthy non-smoking participants. All patients underwent a 24 h Holter monitoring to assess ECG changes during smoking periods. Heart rate increased acutely during smoking. Mean heart rate increased from 83.8±13.7 bpm 10 min before smoking, to 90.5±16.4 bpm during smoking, (p<0.0001) and returned to baseline after 30 min. Smoking was also associated with increased ectopic

SUBMITTER: Ramakrishnan S 

PROVIDER: S-EPMC3641479 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature