• Users Online: 488
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
ORIGINAL ARTICLE
Year : 2019  |  Volume : 17  |  Issue : 2  |  Page : 198-206

Effect of left atrial functions upon the functional capacity in patients with systolic heart failure


Department of Cardiology, Faculty of Medicine (for Girls), Al-Azhar University, Cairo, Egypt

Correspondence Address:
Nadia A Agiba
Department of Cardiology, Faculty of Medicine (for Girls), Al-Azhar University, Cairo 11517
Egypt
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/AZMJ.AZMJ_81_19

Rights and Permissions

Objective To assess left atrial (LA) function and its effect upon the functional capacity in patients with systolic heart failure (HF) using the two-dimensional (2D) speckle tracking echocardiography (STE). Patients and methods This study included 44 patients with systolic HF, ejection fraction less than 40%, sinus rhythm, and New York Heart Association (NYHA) class II–IV. All patients underwent six-minute walk test and conventional, tissue Doppler imaging (TDI), and 2D-STE echo. LA measures included LA dimensions and volumes for calculation of reservoir, conduit, and contractile functions. Peak atrial longitudinal strain (PALS) and peak atrial contractile strain were measured by 2D-STE. Based on NYHA class, patients were divided into group 1 (patients with NYHA II) and group 2 (patients with NYHA III–IV). Results There were no significant differences between both groups regarding demographic data. The 2D ejection fraction was significantly lower in group 2 compared with group I (P<0.05). Group 2 had significantly lower average LA peak systolic velocity (S′) and average LA late diastolic velocity (a′) by TDI compared with group 1, and also group 2 had significantly lower average PALS (16.3±7.2 vs. 11.3±4.4) and average peak atrial contractile strain (10.7±5.4 vs. 5.8±3.3, respectively; P<0.001), compared with group I. There were negative correlations between NYHA class and PALS (r=−0.436, P=0.003), whereas a positive correlation for PALS with six-minute walk distance (r=0.632, P=0.000). PALS was the most significant parameter that can predict limited exercise capacity. Conclusion LA mechanical functions were decreased in patients with systolic HF either measured by STE or TDI. PALS measured by 2D-STE is the most significant parameter correlated with functional capacity.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed145    
    Printed10    
    Emailed0    
    PDF Downloaded24    
    Comments [Add]    

Recommend this journal