PMID- 27175286 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20160513 LR - 20231111 IS - 2053-3624 (Print) IS - 2053-3624 (Electronic) IS - 2053-3624 (Linking) VI - 3 IP - 1 DP - 2016 TI - Ventricular longitudinal function is associated with microvascular obstruction and intramyocardial haemorrhage. PG - e000337 LID - 10.1136/openhrt-2015-000337 [doi] LID - e000337 AB - BACKGROUND: Microvascular obstruction (MVO) and intramyocardial haemorrhage (IMH) are associated with adverse prognosis, independently of infarct size after reperfused ST-elevation myocardial infarction (STEMI). Mitral annular plane systolic excursion (MAPSE) is a well-established parameter of longitudinal function on echocardiography. OBJECTIVE: We aimed to investigate how acute MAPSE, assessed by a four-chamber cine-cardiovascular MR (CMR), is associated with MVO, IMH and convalescent left ventricular (LV) remodelling. METHODS: 54 consecutive patients underwent CMR at 3T (Intera CV, Philips Healthcare, Best, The Netherlands) within 3 days of reperfused STEMI. Cine, T2-weighted, T2* and late gadolinium enhancement (LGE) imaging were performed. Infarct and MVO extent were measured from LGE images. The presence of IMH was investigated by combined analysis of T2w and T2* images. Averaged-MAPSE (medial-MAPSE+lateral-MAPSE/2) was calculated from 4-chamber cine imaging. RESULTS: 44 patients completed the baseline scan and 38 patients completed 3-month scans. 26 (59%) patients had MVO and 25 (57%) patients had IMH. Presence of MVO and IMH were associated with lower averaged-MAPSE (11.7+/-0.4 mm vs 9.3+/-0.3 mm; p<0.001 and 11.8+/-0.4 mm vs 9.2+/-0.3 mm; p<0.001, respectively). IMH (beta=-0.655, p<0.001) and MVO (beta=-0.567, p<0.001) demonstrated a stronger correlation to MAPSE than other demographic and infarct characteristics. MAPSE