Document Detail


Echocardiographic evaluation of right ventricular function in patients with acute pulmonary embolism: a study using tricuspid annular motion.
MedLine Citation:
PMID:  20113327     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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, the TAPSE recovered incompletely as compared to healthy subjects (21.4 +/- 4 vs. 26 +/- 4 mm, P < 0.001). Both systolic and diastolic RV function are impaired in acute PE. Diastolic function recovers faster than systolic; therefore, the atrial contribution to RV filling may be a useful measure to follow changes in diastolic function in PE.
Authors:
Riikka Rydman; Mårten Söderberg; Flemming Larsen; Kenneth Caidahl; Mahbubul Alam
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-01-22
Journal Detail:
Title:  Echocardiography (Mount Kisco, N.Y.)     Volume:  27     ISSN:  1540-8175     ISO Abbreviation:  Echocardiography     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-05-21     Completed Date:  2010-09-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511187     Medline TA:  Echocardiography     Country:  United States    
Other Details:
Languages:  eng     Pagination:  286-93     Citation Subset:  IM    
Affiliation:
Section of Clinical Physiology, Department of Molecular Medicine and Surgery, Karolinska University Hospital, SE-171 76 Stockholm, Sweden. riikka.rydman@karolinska.se
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MeSH Terms
Descriptor/Qualifier:
Diastole
Echocardiography
Female
Humans
Male
Middle Aged
Pulmonary Embolism / physiopathology*,  ultrasonography*
Reference Standards
Systole
Tricuspid Valve / physiopathology,  ultrasonography*
Ventricular Dysfunction, Right / physiopathology*,  ultrasonography*
Ventricular Function, Right*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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