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Abstract
Background
Systemic lupus erythematosus (SLE) is a disease of autoinmune origin that may involve
numerous internal organs of the body. It is associated with high cardiovascular morbility
and mortality. The cardiovascular magnetic resonance (CMR) provides us with a global
evaluation of patients with active SLE and clinical suspicion of acute myocarditis.
OBJETIVES The aim of study was the identification of cardiac alterations in patients
with active SLE and clinical suspicion of acute myocarditis.
Methods
A total of twenty - eight patients were included in the study, with an average age
of 30.7 years ( SD 12.7 yrs), 96% female, diagnosed by criteria of American College
or Rheumatology (ACR). Cardiovascular magnetic resonance (CMR) was performed on a
1.5 T scanner and include the following sequences: steady- state free precession,
STIR T2 weighted (Ts-2W), T1- Weighted spin - echo before and after gadolinium injection
and late enhancement.
Results
The ejection fraction of left ventricle < 50% was found in 54%, 83.4 % with contractility
alterations, 87.5% with valvulitis and affection of the subvalvular apparatus in 50%,
pericardial effusion was observed in 62.5% and tissue characterization suggestive
of myocarditis for the Lake Louise criteria were found to have global and relative
enhancement in 37.7 and 50 % respectively and late gadolinium enhancement (LGE) in
66.7%.
Conclusions
In our study group we found that patients with acute myocarditis asoociated with SLE
have a high incidence of valvulitis and affection of the subvalvar apparatus.
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