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Revista argentina de cardiología
On-line version ISSN 1850-3748
Abstract
DEL CASTILLO, SANTIAGO L. et al. Argentine National Cardiac Magnetic Resonance Imaging Registry (RENAREC). Rev. argent. cardiol. [online]. 2022, vol.90, n.4, pp.250-256. Epub Aug 01, 2022. ISSN 1850-3748. http://dx.doi.org/10.7775/rac.es.v90.i4.20535.
Background:
The usefulness of cardiac magnetic resonance imaging (MRI) has greatly increased in the last years. Different international registries have been published on its use; however, there is no data available from Argentina.
Objective:
The aim of this study was to evaluate different indications, protocols, safety and therapeutic consequences of cardiac MRI in Argentina.
Methods:
A prospective national registry was designed with collection of demographic data, indications for cardiac MRI, associated complications, diagnoses and therapeutic consequences.
Results:
A total of 34 centers from 10 provinces of Argentina (85% private and 59% with inpatient capacity) participated in the study, including 1131 patients (mean age 54±18 years and 61% males). The main indications for cardiac MRI were hypertrophic cardiomyopathy (13.9%), and ventricular arrhythmia (12.3%). In 99.7% of cases, no study complications were reported. The most frequent results of cardiac MRI were: normal (31.2%), non-ischemic cardiomyopathy (14.7%), ischemic-necrotic cardiomyopathy (11.6%) and hypertrophic cardiomyopathy (8.9%). Clinical suspicion was confirmed in 23.6% of cases and cardiac MRI generated an unsuspected new diagnosis in 48.7% of cases. The main therapeutic consequences were hospital discharge (31.6%) followed by change in medication (28.1%).
Conclusions:
Cardiac MRI is widely used in Argentina, mainly in private centers with a very low incidence of complications. Cardiomyopathies (hypertrophic and dilated) and ventricular arrhythmia are its main indication, and it provides a new unsuspected diagnosis in almost half of the cases. Further studies are required to assess its clinical and therapeutic impact.
Keywords : Cardiovascular Magnetic Resonance; Therapeutic implications; Cardiomyopathies; Registries; Argentina.