i
Class I indication for Mitral Valve Surgery:
- CHF + severe organic MR + NYHA Class II - IV symptoms + LVEF > 30 %,
- CHF + severe ischaemic MR + LVEF > 30% + CAD requiring CABG.

Class IIa indication for Mitral Valve Surgery:
- CHF + moderate ischaemic MR + CAD undergoing CABG + high likelihood of durable mitral valve repair.

Class IIb indication for Mitral Valve Surgery:
- CHF + severe organic MR + NYHA Class II - IV symptoms refractory to optimal pharmacotherapy + LVEF < 30% + low predicted surgical morality,
- CHF + severe functional MR + NYHA Class II - IV symptoms refractory to optimal pharmacotherapy + LVEF < 30%.