Echocardiographic evaluation of right ventricular function in patients with acute pulmonary embolism: a study using tricuspid annular motion

Echocardiography
Riikka RydmanMahbubul Alam

Abstract

Assessment of right ventricular (RV) function is a challenge due to complex anatomy. We studied systolic and diastolic tricuspid annular excursion and longitudinal RV fractional shortening as geometry-independent measures in patients with acute pulmonary embolism (PE). Forty patients with PE were studied within 24 hours after admission and after 3 months, and compared to 23 healthy subjects used as controls. We recorded tricuspid annular plane systolic (TAPSE) and diastolic (TAPDE) excursion from the four-chamber view and calculated RV fractional shortening as TAPSE/RV diastolic length. The diastolic RV function was defined as the ratio of the amplitude of tricuspid annular plane excursion during atrial systole to total tricuspid annular plane diastolic excursion (atrial/total TAPDE). In the acute stage, the TAPSE was decreased in PE compared to healthy subjects (19 +/- 5 vs. 26 +/- 4 mm, P < 0.001), with greater reduction in patients with increased, compared to normal, RV pressure (16.6 +/- 5 vs. 20.5 +/- 5 mm, P < 0.05). The atrial/total TAPDE was increased in patients compared to healthy subjects (47 +/- 13% vs. 38 +/- 7%, P < 0.001) and normalized during the follow-up. Although the patients were asymptomatic after 3 months,...Continue Reading

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