Table 3.

Reoperation data of IMHA patients

	Early IMHA	Late IMHA	Total
Onset time after the first mitral valve operation
0–6 months	10 (100)	0 (0)	10 (40)
6–12 months	0 (0)	0 (0)	0 (0)
1–10 years	0 (0)	7 (47)	7 (28)
10–20 years	0 (0)	6 (40)	6 (24)
20–30 years	0 (0)	2 (13)	2 (8)
Reoperation etiologies
Surgical defects	6 (60)	0 (0)	6 (24)
Degeneration	0 (0)	13 (87)	13 (52)
Infection	3 (30)	1 (7)	4 (16)
Vasculitis	1 (10)	0 (0)	1 (4)
Trauma	0 (0)	1 (7)	1 (4)
Mitral valve dysfunction type
Paravalvular leak	4 (40)	12 (80)	16 (64)
Open-closure dysfunction	4 (40)	3 (20)	7 (28)
Perforation	2 (20)	0 (0)	2 (8)
Paravalvular leakage location (midpoint)
2–3 o’clock	2 (50)	4 (33)	6 (38)
5–8 o’clock	2 (50)	3 (25)	5 (31)
10–12 o’clock	0 (0)	3 (25)	3 (19)
Unknown	0 (0)	2 (17)	2 (13)
Reoperation
Mitral valve replacement	8 (80)	14 (93)	22 (88)
Mitral valve repair	1 (10)	0 (0)	1 (4)
Died before reoperation	1 (10)	1 (7)	2 (8)
Valve brand
CarboMedics	2 (25)	6 (43)	8 (36)
Medtronics	2 (25)	3 (21)	5 (23)
St Jude	2 (25)	2 (14)	4 (18)
Sorin	0 (0)	1 (7)	1 (5)
Unknown	2 (25)	2 (14)	4 (18)