Frequency and prognostic impact of right ventricular involvement in acute myocardial infarction
Heart Sep 06, 2020
Stiermaier T, Backhaus SJ, Matz J, et al. - Researchers investigated the frequency as well as prognostic implications of concomitant structural and functional right ventricular (RV) injury in myocardial infarction (MI). Participants were 1,235 patients with MI (ST-elevation myocardial infarction: n = 795; non-STEMI: n = 440). The participants underwent cardiac magnetic resonance 3 days post-reperfusion by primary percutaneous coronary intervention. The 12-month rate of major adverse cardiac events (MACE) was assessed. In 19.6% and 12.1% of patients, RV ischaemia and infarction were detected, respectively, indicating complete myocardial salvage in one-third of patients. A significantly elevated risk of MACE was observed in relation to RV ischaemia, while patients with RV infarction demonstrated only numerically raised event rates. Overall, experts concluded RV global longitudinal strain as a factor that predicted postinfarction adverse events over and above established risk factors, while there was no independent link of structural RV involvement with outcome.
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