Assessment of left atrial strain in patients pre-and post-mitral valvuloplasty by using two-dimensional speckle tracking echocardiography / 中华超声影像学杂志
Chinese Journal of Ultrasonography
;
(12): 461-465, 2013.
Artigo
em Chinês
| WPRIM
| ID: wpr-434821
ABSTRACT
Objective To evaluate the change of left atrial function after mitral valvuloplasty in patients with mitral valve prolapse by measuring left atrial strain using two-dimensional speckle tracking echocardiography(2D-STE).Methods Study population consisted of 25 patients with mitral valve prolapse and 25 healthy subjects.High frame rate two-dimensional images were recorded from the apical four chamber view and two chamber view.Images of patients with mitral valve prolapse were respectively recorded at pre-operation,3 days and 3 months post-operation.Left atrial longitudinal strain was measured in two views using two-dimensional strain soft ware.Results ①Compared with the control group,global peak atrial longitudinal strain (PALS),peak atrial contraction strain (PACS) and atrial longitudinal strain during early diastole(ALSED) decreased (P <0.01) in patients with mitral valve prolapse,but global timeto-peak of peak atrial longitudinal strain(TPLS) increased(P <0.01).Regurgitant jet area/left atrium area (RJA/LAA) in patients with mitral valve prolapse correlated negatively with global PALS(r =-0.620,P < 0.01).② Compared with preoperative group,global PALS,PACS,ALSED and TPLS decreased significantly at 3 days after surgery(P <0.01).Global PALS,ALSED(P <0.01) and PACS(P <0.05)increased at 3 months after surgery,but global TPLS did not differ significantly.Conclusions 2D-STE could accurately evaluate the change of left atrial function after mitral valvuloplasty.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Ultrasonography
Ano de publicação:
2013
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS