Effectiveness and safety of transcatheter aortic valve replacement in elderly people with severe aortic stenosis with different types of heart failure

Table 5 Changes of BNP at 1 month and NYHA class at 6 months after TAVR [M(P25, P75), case(%)]

Variable	HFrEF	HFmrEF	HFpEF	H, χ²	P
n	14	15	64
△BNP(pg/ml)	1824.40 (1038.20,3028.21)^a	953.09 (483.55, 1628.83)^a	143.39 (6.12,774.84)	25.637	0.000
NYHA class				5.637	0.173^∆
Remarkable effect	12 (85.7)	13 (86.7)	40 (62.5)
Effective	2 (14.3)	1 (6.7)	20 (31.3)
invalid	0 (0.0)	1 (6.7)	4 (6.3)
effective rate(%)	100	93.4	93.8

NYHA: New York heart association; BNP: B-type natriuretic peptide. △BNP is obtained by subtracting postoperative parameter from preoperative parameter. ^aCompared with HFpEF group, p < 0.05. ^∆Fisher’s exact tests. 3 patients died during the perioperative period

ISSN: 1471-2261