ABC | Volume 110, Nº3, March 2018

Original Article De-Paula et al Impact of asthma on ventricular function Arq Bras Cardiol. 2018; 110(3):231-239 Figure 1 – Tissue Doppler imaging performed at tricuspid annulus in apical 4-chamber view (E’- peak early diastolic annular tricuspid velocity;A’: peak late diastolic annular tricuspid velocity; S´: systolic annular velocity; IVRT: isovolumetric relaxation time; IVCT: isovolumetric contraction time; ET: ejection time) La Jolla, CA, USA). A p-value < 0.05 was considered indicative of statistical significance. Results Anthropometric and pulmonary function test data Control and asthmatic groups were similar with regard to age, weight, height, and body mass index (BMI). FEV 1  and the Tiffeneau index (FEV 1 /FVC) were significantly lower in the group with asthma than the control group (Table 1). All asthmatic patients were clinically stable. Of the 20 patients, 86.95% presented mild asthma, 8.70% moderate asthma and 4.35% very severe asthma. Echocardiographic characteristics In the present study, conventional and tissue echocardiographic parameters in healthy and asthmatic children and adolescents free of any cardiovascular symptoms were assessed. Figure 2 – Pulsed-wave Doppler of pulmonary artery (PAT: pulmonary acceleration time = interval from onset of pulmonary flow to peak velocity; shorter acceleration time = higher pulmonary arterial pressure) 234