PT  - JOURNAL ARTICLE
AU  - M Louisa Antoni
AU  - Ellen A ten Brinke
AU  - Jael Z Atary
AU  - Nina Ajmone Marsan
AU  - Eduard R Holman
AU  - Martin J Schalij
AU  - Jeroen J Bax
AU  - Victoria Delgado
TI  - Left atrial strain is related to adverse events in patients after acute myocardial infarction treated with primary percutaneous coronary intervention
AID  - 10.1136/hrt.2011.227678
DP  - 2011 Aug 15
TA  - Heart
PG  - 1332--1337
VI  - 97
IP  - 16
4099  - http://heart.bmj.com/content/97/16/1332.short
4100  - http://heart.bmj.com/content/97/16/1332.full
SO  - Heart2011 Aug 15; 97
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.