title: Effect of food intake on left and right ventricular systolic tissue Doppler measurements.
abstract: Systolic tissue Doppler measurements (s') have been used to measure the velocity in myocardial motion and are a valuable tool for evaluating the systolic function of the left and right ventricles. Digestion of food is known to significantly alter hemodynamics and may therefore affect s'. The effect of food intake on s' parameters has not yet been studied. We assessed whether s' is affected by food intake. Nineteen healthy subjects aged 26·2 ± 4·2 years were investigated. s' was measured with pulsed tissue Doppler imaging in the right and left ventricles before the subjects ate a standardized meal and also 30 and 110 min after the meal. Three measurements were taken in each projection, and a mean value was calculated for each. s' increased significantly (P<0·05) from fasting to 30 min after food intake in every measured site except in the left inferolateral wall (P = 0·15, NS). Several, but not all, variables returned to base value 110 min after food intake. This study shows that food intake affects the tissue Doppler variables used to evaluate systolic heart function. Further studies are needed in older healthy subjects and older subjects with various cardiovascular diseases.
authors.affiliation: Department of Clinical Sciences, Department of Medical Imaging and Physiology, Skåne University Hospital, Lund University, Malmö, Sweden.
authors.forename: Anna
authors.initials: A
authors.lastname: Dieden
authors.affiliation: Department of Clinical Sciences, Department of Medical Imaging and Physiology, Skåne University Hospital, Lund University, Malmö, Sweden.
authors.forename: Ylva
authors.initials: Y
authors.lastname: Gårdinger
authors.affiliation: Division of Medicine, Department of Clinical Sciences, Skåne University Hospital, Lund University, Malmö, Sweden.
authors.forename: Joanna
authors.initials: J
authors.lastname: Hlebowicz
authors.affiliation: Department of Clinical Sciences, Department of Medical Imaging and Physiology, Skåne University Hospital, Lund University, Malmö, Sweden.
authors.forename: Ola
authors.initials: O
authors.lastname: Björgell
authors.affiliation: Department of Clinical Sciences, Department of Medical Imaging and Physiology, Skåne University Hospital, Lund University, Malmö, Sweden.
authors.forename: Magnus
authors.initials: M
authors.lastname: Dencker
mesh_terms: D000328:Adult; D004435:Eating; D018619:Echocardiography, Doppler, Pulsed; D005260:Female; D064368:Healthy Volunteers; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D019518:Postprandial Period; D011237:Predictive Value of Tests; D015203:Reproducibility of Results; D013599:Systole; D013997:Time Factors; D016277:Ventricular Function, Left; D016278:Ventricular Function, Right; D055815:Young Adult
keywords: echocardiography; food intake; systolic function; tissue Doppler