Article (Scientific journals)
Left ventricular torsional dynamics in aortic stenosis: relationship between left ventricular untwisting and filling pressures. A two-dimensional speckle tracking study.
Popescu, Bogdan Alexandru; Calin, Andreea; Beladan, Carmen C. et al.
2010In European Journal of Echocardiography, 11 (5), p. 406-13
Peer Reviewed verified by ORBi
 

Files


Full Text
POPESCU_EurJCardioechogr_2010_11_406.pdf
Publisher postprint (345.46 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Aged; Analysis of Variance; Aortic Valve Stenosis/pathology/ultrasonography; Case-Control Studies; Diastole; Echocardiography/methods; Female; Heart Ventricles/pathology/ultrasonography; Humans; Male; Middle Aged; Natriuretic Peptide, Brain/blood; Prognosis; Prospective Studies; Regression Analysis; Severity of Illness Index; Statistics as Topic; Stroke Volume; Torsion, Mechanical; Ventricular Dysfunction, Left/pathology/ultrasonography; Ventricular Function, Left/physiology; Ventricular Pressure/physiology
Abstract :
[en] AIMS: The contribution of left ventricular (LV) untwisting to LV suction and early-diastolic filling was previously demonstrated, but this was not yet tested in patients with aortic stenosis (AS). We sought to assess the relationship between LV untwisting and LV filling pressures in patients with severe AS and normal left ventricular ejection fraction (LVEF) using speckle tracking echocardiography. METHODS AND RESULTS: Sixty-one consecutive patients (66 +/- 9 years) with severe AS, preserved LVEF (63 +/- 6%), and 40 normal subjects (47 +/- 12 years) were prospectively enrolled. A comprehensive echocardiographic examination was performed in all. LV rotation and twisting were assessed using speckle tracking echocardiography. Peak apical back rotation rate, peak LV untwisting rate, and time intervals from QRS onset (ECG) to each of them were measured. Brain natriuretic peptide (BNP) levels were determined in 30 patients. Patients with AS were older than normal subjects (P < 0.001). LV mass, LA volume, LV filling pressures as well as peak apical back rotation rate and time to peak apical back rotation rate were increased in patients (P < 0.05 for all). In patients with AS, both time to peak LV untwisting rate and time to peak apical back rotation rate were significantly related to E/E' ratio and to BNP levels (P < 0.04 for all). CONCLUSION: In patients with severe AS and preserved LVEF, there is a significant relationship between LV untwisting and LV filling pressures, suggesting a role for impaired LV untwisting in the pathophysiology of diastolic dysfunction in this setting.
Disciplines :
Cardiovascular & respiratory systems
Author, co-author :
Popescu, Bogdan Alexandru
Calin, Andreea
Beladan, Carmen C.
Muraru, Denisa
Rosca, Monica
Deleanu, Dan
LANCELLOTTI, Patrizio  ;  Centre Hospitalier Universitaire de Liège - CHU > Cardiologie
Antonini-Canterin, Francesco
Nicolosi, Gian Luigi
Ginghina, Carmen
Language :
English
Title :
Left ventricular torsional dynamics in aortic stenosis: relationship between left ventricular untwisting and filling pressures. A two-dimensional speckle tracking study.
Publication date :
2010
Journal title :
European Journal of Echocardiography
ISSN :
1525-2167
eISSN :
1532-2114
Publisher :
W. B. Saunders Co., United Kingdom
Volume :
11
Issue :
5
Pages :
406-13
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 June 2013

Statistics


Number of views
61 (5 by ULiège)
Number of downloads
4 (2 by ULiège)

Scopus citations®
 
32
Scopus citations®
without self-citations
25
OpenCitations
 
27
OpenAlex citations
 
36

Bibliography


Similar publications



Contact ORBi