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Sökning: WFRF:(Marchlinski Francis E) > (2020)

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  • Muser, Daniele, et al. (författare)
  • Risk Stratification of Patients With Apparently Idiopathic Premature Ventricular Contractions A Multicenter International CMR Registry
  • 2020
  • Ingår i: JACC. - : ELSEVIER. - 2405-500X .- 2405-5018. ; 6:6, s. 722-735
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES This study investigated the prevalence and prognostic significance of concealed myocardial abnormalities identified by cardiac magnetic resonance (CMR) imaging in patients with apparently idiopathic premature ventricular contractions (PVCs). BACKGROUND The rote of CMR imaging in patients with frequent PVCs and otherwise negative diagnostic workup is uncertain. METHODS This was a multicenter, international study that included 518 patients (age 44 +/- 15 years; 57% men) with frequent (>1,000/24 h) PVCs and negative routine diagnostic workup. Patients underwent a comprehensive CMR protocol including late gadolinium enhancement imaging for detection of necrosis and/or fibrosis. The study endpoint was a composite of sudden cardiac death, resuscitated cardiac arrest, and nonfatal episodes of ventricular fibrillation or sustained ventricular tachycardia that required appropriate implantable cardioverter-defibrillator therapy. RESULTS Myocardial abnormalities were found in 85 (16%) patients. Mate gender (odds ratio [OR]: 4.28; 95% confidence interval [CI]: 2.06 to 8.93; p = 0.01), family history of sudden cardiac death and/or cardiomyopathy (OR: 3.61; 95% CI: 1.33 to 9.82; p = 0.01), multifocat PVCs (OR: 11.12; 95% CI: 4.35 to 28.46; p < 0.01), and non-left bundle branch block inferior axis morphology (OR: 14.11; 95% CI: 7.35 to 27.07; p < 0.01) were alt significantly related to the presence of myocardial abnormalities. After a median follow-up of 67 months, the composite endpoint occurred in 26 (5%) patients. Subjects with myocardial abnormalities on CMR had a higher incidence of the composite outcome (n = 25; 29%) compared with those without abnormalities (n = 1; 0.2%; p < 0.01). CONCLUSIONS CMR can identify concealed myocardial abnormalities in 16% of patients with apparently idiopathic frequent PVCs. Presence of myocardial abnormalities on CMR predict worse clinical outcomes. (C) 2019 by the American College of Cardiology Foundation.
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