Table 3. Grades of preoperative and postoperative TVR.

Preoperative Grade of tricuspid regurgitation
TR Grade	TVD (n = 50)	Non-TVD (n = 120)
0	40 (80%)	101 (87.2%)
1	8 (16%)	16 (18.3%)
2	2 (4%)	3 (8.3%)
3	0	0
Postoperative Grade of tricuspid regurgitation at first week
0	36 (72%)	98 (81.6%)
1	13 (26%)	19 (15.8%)
2	1 (2%)	3 (2.5%)
3	0 (0%)	0 (0%)
Postoperative Grade of tricuspid regurgitation at last follow-up
0	44 (88%)	110 (91.7%)
1	6 (12%)	10 (8.3%)
2	0	0
3	0	0

TVD, tricuspid valve detachment; TVR, tricuspid valve regurgitation.