mild valve regurgitationmild tricuspid regurgitationmild heart regurgitationmild tricuspid valve insufficiencymild tricuspid valve regurgitationmild aortic valve regurgitationmild pulmonary valve regurgitationmild leaking heart valvemild pulmonic valve regurgitationmild tricuspidtrace to mild tricuspid regurgitationmild mitral valve