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Functional and structural correlates of persistent ST elevation after acute myocardial infarction successfully treated by percutaneous coronary intervention.
- Source :
- Heart; Nov2007, Vol. 93 Issue 11, p1376-1380, 5p, 2 Color Photographs, 1 Chart, 3 Graphs
- Publication Year :
- 2007
-
Abstract
- Background: In the thrombolytic era, persistence of ST-segment elevation was considered a marker of left ventricular (LV) aneurysm. ST-segment elevation may still be found persistently raised after successful primary percutaneous coronary intervention (PCI). Echocardiographic correlates of this finding, however, are still poorly known. Methods and results: 82 consecutive patients with first ST-segment elevation myocardial infarction and successful PCI were divided into patients with persistent ST-segment elevation at discharge (sum of ST>4 mm) (n = 33) and those without persistent ST-segment elevation (n = 49). Conventional and myocardial contrast echocardiography were performed at discharge and at 6 months. At discharge, LV aneurysm was more common in patients with persistent ST elevation (27% vs 8%, p<0.005). Similarly, the wall motion score index was higher (2.5 vs 2.0, p<0.005) and microvascular damage larger (2.3 vs 1.8, p<0.005) in patients with persistent ST-segment elevation. At 6 months' follow-up, LV volumes were similar in the two groups. Conclusions: After primary PCI, persistent ST-segment elevation is associated with LV aneurysm formation in 30% of cases, it is not associated with significantly larger LV dilatation but with larger microvascular damage and dysfunctioning risk area. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13556037
- Volume :
- 93
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Heart
- Publication Type :
- Academic Journal
- Accession number :
- 27441264
- Full Text :
- https://doi.org/10.1136/hrt.2006.105320