Figure 4From: Acute effects of caffeine and cigarette smoking on ventricular long-axis function in healthy subjectsRelative changes in right ventricular long-axis function after caffeine assumption, cigarette smoking, or both. P values are calculated by within-group Student t test for paired data. Sm = peak systolic tricuspid annulus velocity; Em = peak early diastolic tricuspid annulus velocity; Am = peak late diastolic tricuspid annulus velocity; TAPSE = tricuspid annular plane systolic excursion.Back to article page