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. Author manuscript; available in PMC: 2019 Mar 10.
Published in final edited form as: Lancet. 2018 Mar 10;391(10124):960–969. doi: 10.1016/S0140-6736(18)30473-2

Table 2.

Type of intervention in isolated mitral regurgitation

All patients
(n=1294)		 Ejection fraction <50%
(n=538)		 Ejection fraction ≥50%
(n=756)
Mitral surgery
Total 198 (15%) 28 (5%) 170 (22%)
Repair 149 (12%) 18 (3%) 131 (17%)
Replacement   49 (4%) 10 (2%)   39 (5%)
 Tissue   23 (2%)   3 (<1%)   20 (3%)
 Mechanical   26 (2%)   7 (1%)   19 (3%)
Other cardiac procedures*
Any cardiac surgery 237 (18%) 49 (9%) 188 (25%)
Coronary artery bypass grafting   88 (7%) 27 (5%)   61 (8%)
Aortic valve surgery   27 (2%)   6 (1%)   21 (3%)
Tricuspid valve surgery   32 (2%)   9 (2%)   23 (3%)
Left ventricular assist device     6 (<1%)   6 (1%)     0
MAZE   19 (1%)   2 (<1%)   17 (2%)
Heart transplant     6 (<1%)   6 (1%)     0

Data are n (%). MAZE=surgical ablation of atrial fibrillation.

*

The numbers for the different types of cardiac surgery do not add up to the totals in the ‘any cardiac surgery’ row because some patients might have had various different interventions.