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- W3028589110 abstract "Abstract Aims Despite three decades of study, it is still challenging to discriminate acute apical variant stress cardiomyopathy (AVSCM) from acute left anterior descending‐myocardial infarction (LAD‐MI) at the time of presentation. A biomarker or practical imaging modality that can differentiate these two entities is highly desirable. Our objective was to characterize left ventricular (LV) mechanical deformation using 2‐dimensional (2D) echocardiographic strain imaging in an attempt to discriminate AVSCM from LAD‐MI at presentation. Methods and Results We studied 108 women (60 AVSCM, 48 ST segment elevation LAD‐MI). All underwent echocardiography within 48 hours of presentation. 2D longitudinal strain (LS) from an 18‐segment LV model was performed, with global LS (GLS) taken as the average of all 18 segments. GLS was abnormal, but did not differentiate AVSCM from LAD‐MI. Mean LS of the basal and mid‐anterior, basal, and mid‐anteroseptum segments were significantly lower in LAD‐MI vs AVSCM group (−14 ± 9% vs −20 ± 8%; −11 ± 7% vs −14 ± 6%; −9 ± 8% vs −14 ± 8%; −9 ± 7% vs −13 ± 5%, respectively, all P ≤ .05). Mean LS of the basal inferior and inferolateral segments was significantly higher in the LAD‐MI vs. AVSCM group (−19 ± 9% vs −13 ± 7%; −23 ± 11% vs −18 ± 7%, respectively, all P ≤ .05). Using ROC curve analysis, segmental strain ratio of average basal inferior and inferolateral segments LS to average mid‐ and basal anterior and anteroseptum segments LS of ≥1.58 was 90% specific for LAD‐MI [area under the curve (AUC) 0.87; P < .001]. Conclusion Longitudinal strain patterns are useful in discriminating AVSCM from LAD‐MI patients at presentation and may be valuable in stratifying patients for invasive evaluation." @default.
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- W3028589110 date "2020-05-21" @default.
- W3028589110 modified "2023-10-02" @default.
- W3028589110 title "Comparative left ventricular mechanical deformation in acute apical variant stress cardiomyopathy and acute anterior myocardial infarction utilizing 2‐dimensional longitudinal strain imaging" @default.
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- W3028589110 doi "https://doi.org/10.1111/echo.14675" @default.
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