Key result
Unilateral pulmonary edema occurred in 50% of patients with acute severe mitral regurgitation caused by chordal rupture, and was predominantly right-sided.
Observational (n=38)
No
Unilateral pulmonary edema is a common early radiographic finding in acute severe mitral regurgitation due to chordal rupture, and should be recognized to avoid misdiagnosis as pneumonia.
Supports consideration of acute MR in unilateral edema; hypothesis-generating observation requiring prospective validation.
The prevalence of UPE was estimated as 50%; it was most frequently right sided and almost always associated with chordal rupture of the posterior leaflet. UPE is not rare, but common, particularly shortly after the development of acute severe MR caused by chordal rupture.
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Nishimura et al. (2022) conducted an observational in Acute severe mitral regurgitation caused by chordal rupture (n=38). Acute severe mitral regurgitation was evaluated on Prevalence of unilateral pulmonary edema (UPE). Unilateral pulmonary edema occurred in 50% of patients with acute severe mitral regurgitation caused by chordal rupture, and was predominantly right-sided.
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