Mitral Regurgitation Quantitation: Are Different Methods Required for Primary vs Secondary Disease?

Within the prior 24 months, I have had a financial relationship with a company producing, marketing, selling, re-selling, or distributing healthcare products used by or on patients:

• Grant Support/Research Contract - Abbott; Boston Scientific Corporation; Edwards Lifesciences; Medtronic; Neochord; CardioMech; Cardiovalve
• Consultant Fee/Honoraria/Speaker's Bureau - Abbott; Edwards Lifesciences; Medtronic; 4C Medical