Impact of standardized computed tomographic angiography for minimally invasive mitral and tricuspid valve surgery

Table 4 Operative procedures

	CT-A (n = 63)	other CT (n = 35)	no CT (n = 45)	p-value
Mitral valve
Repair, n (%)	46 (78)	28 (80)	25 (58)	0.54
isolated annuloplasty, n (%)	9 (17)	10 (29)	4 (9)	0.89
Neochordae/chordal transfer, n (%)	37 (63)	18 (51)	21 (49)	0.33
Replacement	13 (22)	7 (20)	18 (42)	0.05
biological, n (%)	12 (20)	7 (20)	14 (33)	0.32
mechanical, n (%)	1 (2)	0 (0)	4 (9)	0.08
Tricuspid valve
Repair
isolated annuloplasty, n (%)	11 (100)	15 (100)	9 (90)	0.28
Replacement
biological, n (%)	0 (0)	0 (0)	1 (10)	0.28
Perfusion
Cannulation
deviation from standard^a, n (%)	11 (18)	2 (6)	4 (9)	0.21
LFA, n (%)	4 (6)	2 (6)	4 (9)	0.84
RAA, n (%)	7 (11)	0 (0)	0 (0)	0.01
intraoperative switch^b, n (%)	1 (2)	2 (6)	3 (7)	0.64
Cross-clamping
Chitwood clamp, n (%)	45 (65)	26 (74)	42 (93)	0.01
intra-aortic balloon, n (%)	16 (25)	9 (26)	2 (4)	< 0.01
None^c, n (%)	2 (2)	0 (0)	1 (2)	0.79

Patients with preoperative CT angiography (CT-A, n = 63) compared to patients with non-contrast CT (other CT, n = 35) and patients without preoperative CT scan (no CT, n = 45). Post-hoc comparison: RAA: CT-A vs. other: p = 0.05, CT-A vs. no CT: p = 0.04, other CT vs no CT: p = 1.00; Chitwood clamp: CT-A vs. other: p = 0.82, CT-A vs. no CT: p < 0.01, other CT vs no CT: p = 0.03; intra-aortic balloon: CT-A vs. other: p = 1.00, CT-A vs. no CT: p < 0.01, other CT vs no CT: p < 0.01
LFA left femoral artery, RAA right axillary artery, RFA right femoral artery
^aStandard defined as cannulation of right femoral vessels
^bunplanned intraoperative change of cannulation
^cprocedure performed in ventricular fibrillation at moderate hypothermia

ISSN: 1749-8090