Author + information
- Received December 23, 2018
- Revision received March 20, 2019
- Accepted April 19, 2019
- Published online July 17, 2019.
- Daniele Andreini, MD, PhDa,b,∗ (, )
- Antonio Dello Russo, MD, PhDa,
- Gianluca Pontone, MD, PhDa,
- Saima Mushtaq, MDa,
- Edoardo Conte, MDa,
- Marco Perchinunno, MDc,
- Marco Guglielmo, MDa,
- Ana Coutinho Santos, MDd,
- Marco Magatelli, MDe,
- Andrea Baggiano, MDa,
- Simone Zanchi, MDa,
- Eleonora Melotti, MDa,
- Laura Fusini, MDa,
- Paola Gripari, MDa,
- Michela Casella, MD, PhDa,
- Corrado Carbucicchio, MDa,
- Stefania Riva, MDa,
- Gaetano Fassini, MDa,
- Letizia Li Piani, MDa,
- Cesare Fiorentini, MDa,b,
- Antonio L. Bartorelli, MDa,f,
- Claudio Tondo, MD, PhDa,b and
- Mauro Pepi, MDa
- aCentro Cardiologico Monzino, IRCCS, Milan, Italy
- bDepartment of Clinical Sciences and Community Health, Cardiovascular Section, University of Milan, Milan, Italy
- cDepartment of Diagnostic Imaging, AUSL Romagna, Italy
- dRadiology Department, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
- eDepartment of Cardio-Thoracic Disease, School of Cardiology, University of Brescia, Brescia, Italy
- fDepartment of Biomedical and Clinical Sciences Luigi Sacco, University of Milan, Milan, Italy
- ↵∗Address for correspondence:
Dr. Daniele Andreini, Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milan, Via C. Parea 4, 20138 Milan, Italy.
Objectives This study sought to determine whether cardiac magnetic resonance (CMR) may identify structural heart disease (SHD) in patients with ventricular arrhythmia who had echocardiography ruled out pathological findings.
Background Approximately one-half of sudden cardiac deaths are attributable to malignant VA. Echocardiography is commonly used to identify SHD that is the most frequent substrate of VA.
Methods A single-center prospective study was conducted in consecutive patients with significant VA, categorized as >1,000 but <10,000 ventricular ectopic beats [VEBs]/24 h; ≥10,000 VEBs/24 h; nonsustained ventricular tachycardia, sustained ventricular tachycardia (SVT), or a history of resuscitated cardiac arrest, and no pathological findings at echocardiography, requiring a clinically indicated CMR. Primary endpoint was CMR detection of SHD. Secondary endpoints were a composite of CMR detection of SHD and abnormal findings not specific for a definite SHD diagnosis.
Results A total of 946 patients were enrolled (mean 41 ± 16 years of age; 64% men). CMR studies were used to diagnose SHD in 241 patients (25.5%) and abnormal findings not specific for a definite SHD diagnosis in 187 patients (19.7%). Myocarditis (n = 91) was the more frequent disease, followed by arrhythmogenic cardiomyopathy (n = 55), dilated cardiomyopathy (n = 39), ischemic heart disease (n = 22), hypertrophic cardiomyopathy (n = 13), congenital cardiac disease (n = 10), left ventricle noncompaction (n = 5), and pericarditis (n = 5). The strongest univariate and multivariate predictors of SHD on CMR images were chest pain (odds ratios [OR]: 2.52 and 2.38, respectively) and SVT (ORs: 2.67 and 2.23, respectively).
Conclusions SHD was able to be identified on CMR imaging in a sizable number of patients with significant VA and completely normal echocardiography. Chest pain and SVT were the strongest predictors of positive CMR imaging results.
- additional diagnostic value
- arrhythmic substrate
- cardiac magnetic resonance
- late gadolinium enhancement
- ventricular arrhythmia
All authors have reported that they have no relationships with industry relevant to the contents of this paper to disclose.
- Received December 23, 2018.
- Revision received March 20, 2019.
- Accepted April 19, 2019.
- 2019 American College of Cardiology Foundation
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