Table 1.

Disease Severity Based on Severity of Cardiac Involvement at Time of Presentation

	Mitral or Aortic Regurgitation	Left Ventricular Dysfunction	Mitral Stenosis
Mild or no cardiac involvement	Normal, trivial, or mild	…	…
Moderate cardiac involvement	Mild to moderate, Moderate	None or mildly diminished	…
Severe cardiac involvement	Moderate to severe, Severe	> mildly diminished	Present (any degree)