RT Journal Article
SR Electronic
T1 Left atrial strain is related to adverse events in patients after acute myocardial infarction treated with primary percutaneous coronary intervention
JF Heart
JO Heart
FD BMJ Publishing Group Ltd and British Cardiovascular Society
SP 1332
OP 1337
DO 10.1136/hrt.2011.227678
VO 97
IS 16
A1 M Louisa Antoni
A1 Ellen A ten Brinke
A1 Jael Z Atary
A1 Nina Ajmone Marsan
A1 Eduard R Holman
A1 Martin J Schalij
A1 Jeroen J Bax
A1 Victoria Delgado
YR 2011
UL http://heart.bmj.com/content/97/16/1332.abstract
AB Background Left atrial (LA) maximal volume is of prognostic value in patients after acute myocardial infarction (AMI). Recently, LA mechanical function and LA strain have been introduced as alternative methods to assess LA performance more accurately.Objective To evaluate the relation between LA volume, mechanical function and strain, and adverse events in patients after AMI.Methods Patients with AMI underwent two-dimensional echocardiography within 48 h of admission. LA volume and LA performance (mechanical function and systolic strain) were quantified. The endpoint was a composite of all-cause mortality, reinfarction and hospitalisation for heart failure.Results 320 patients (mean age 60±12 years, 78% men) were followed up for 27±14 months. During follow-up, 48 patients (15%) reached the composite endpoint. After adjustment for clinical and echocardiographic parameters, LA maximal volume (HR 1.05, CI 1.00 to 1.10, p=0.04) and LA strain (HR 0.94, CI 0.89 to 0.99, p=0.02) were independently associated with adverse outcome. In addition, LA strain provided incremental value to LA maximal volume (p=0.03) for the prediction of adverse outcome.Conclusions After AMI treated with primary percutaneous coronary intervention, LA strain provides additional prognostic value beyond LA maximal volume.