Myocardial strain by cardiac magnetic resonance: A valuable predictor of outcome after infarct revascularization

Rezaei‐Kalantari, Kiara; Babaei, Rosa; Bakhshandeh, Hooman; Motevalli, Marzieh; Bitarafan-Rajabi, Ahmad; Kasani, Kianosh; Jafari, Maryam; Farahmand, Ali Mohammad; Sharifian, Maedeh

doi:10.1016/j.ejrad.2021.109989

Cited by 3 publications

(1 citation statement)

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“…CMR can be used to show the anatomy of the cardiac structure, myocardial function and infarction characteristics, myocardial infarct size (IS) and microvascular obstruction (MVO), and results obtained by CMR late gadolinium enhancement (LGE) are known to have added value as predictors of adverse outcomes after acute myocardial infarction [8][9][10]. CMR feature-tracking (FT) has been recently applied to routine CMR cine sequences without additional scanning time and has become a promising standard technique for quantifying myocardial strain in STEMI patients [11,12]. Myocardial strain, including global radial, circumferential and longitudinal strains (GRS, GCS and GLS, respectively), can be used to assess both global systolic function and systolic and diastolic function.…”

Section: Introductionmentioning

confidence: 99%

Delays in first medical contact to primary interventional therapy and left ventricular remodelling in ST-segment elevation myocardial infarction

et al. 2023

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Background Early reperfusion and early evaluation of adverse cardiovascular events have become important aspects of treatment for ST-segment elevation myocardial infarction post–primary percutaneous coronary intervention (PPCI). However, emergency medical service (EMS) delays always occur, especially in developing countries. Aims The aim of this study was to investigate the impact of EMS delays on short-term predictions of the severity of myocardial injury in STEMI patients after PPCI. Methods A total of 151 STEMI patients who underwent successful PPCI and two postoperative cardiac magnetic resonance (CMR) imaging examinations (1 week and 4 months postoperatively) were retrospectively analysed. CMR cine and late gadolinium enhancement (LGE) images were analysed to evaluate left ventricular (LV) function, LV global longitudinal peak strain (GLS) and scar characteristics. The time from first medical contact to balloon (FMC2B) and door-to-balloon (D2B) time, expressed in minutes, were recorded and compared with the recommended timelines. Unadjusted and multivariable analyses were used to assess the impact of EMS delays on short-term left ventricular remodelling (ALVR). Results EMS delays (FMC2B time > 90 min) led to larger infarct size (IS) and microcirculation obstruction (MVO) and poor recovery of the LV ejection fraction and GLS (all p < 0.05). Logistic regression analysis showed that an FMC2B time > 90 min ( p = 0.028, OR = 2.661, 95% CI 1.112–6.367) and baseline IS ( p = 0.016, OR = 1.079, 95% CI 1.015–1.148) were independent predictors of short-term ALVR. Conclusion Delays in FMC2B time were strongly associated with short-term ALVR; shorter ischaemic times may improve the cardiac function and prognosis of patients.

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