Translations:ENDS Cardiovascular System/28/en
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Heart rate increased from an average (SD) of 65.7 (10.4) bpm at baseline to a peak of 80.3 (10.9) bpm five minutes after the first administration under the tobacco cigarette condition. No significant changes in heart rate were observed for the e-cigarette or sham conditions. Under these acute testing conditions, neither of the electronic cigarettes exposed users to measurable levels of nicotine or CO, although both suppressed nicotine/tobacco abstinence symptom ratings.