Continuous or interrupted pledgeted suture technique in stented bioprosthetic aortic valve replacement: a comparison of in-hospital outcomes

Table 4 Postoperative gradients in subgroup of patients with different prosthesis sizes and type, for different suture technique

		N	19 + 21	p-value	N	23	p-value	N	> 23	p-value
Peak gradient mmHg (sd)
Magna	IPT	43	24.0 (11.4)	0.02	117	21.3 (8.8)	0.001	165	18.3 (7.5)	0.01
	CST	36	18.3 (10.0)		142	18.4 (5.9)		364	16.1 (6.4)
Trifecta	IPT	37	17.7 (6.7)	0.003	98	16.2 (7.3)	0.001	65	13.8 (7.1)	0.45
	CST	38	13.7 (6.5)		89	12.4 (5.0)		107	13.1 (5.5)
Mean gradient mmHg (sd)
Magna	IPT	43	13.2 (6.5)	0.01	117	11.5 (5.0)	0.001	165	10.0 (4.3)	0.001
	CST	36	9.8 (4.8)		142	9.6 (3.2)		364	8.6 (3.7)
Trifecta	IPT	37	9.3 (3.6)	0.003	98	8.2 (4.0)	0.001	65	7.0 (4.3)	0.67
	CST	38	7.1 (3.6)		89	6.4 (2.9)		107	6.8 (3.1)

CST: Continues suture technique; IPT: Interrupted pledgeted technique, N: Number of patients available for analysis; The numbers (19, 21, 23) indicate the size of prosthesis as indicated by the companies

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