Avoiding the Learning Curve for Transcatheter Aortic Valve Replacement

Table 2

Procedural efficiency, device success, and safety.

Parameter	Established program overall	New program overall		First half	Second half
Procedural efficiency
Contrast (cc)	192.4 ± 111.2	201.3 ± 114.7	0.61	201 (±136)	201 (±88)	0.5
Procedure time (min)	148 ± 62.7	158.9 ± 59.1	0.27	169 ± 62.7	149.6 ± 55.2	0.26
Procedural success and safety
Device success	87.2%	96%	0.08	96%	96%	0.5
Stroke	4.0% (9)	0% (0)	0.37	0%	0%	—
Vascular complications	6.3% (14)	2% (1)	0.32	0%	1 (4%)	0.29
Paravalvular leak(>mild)	0.4% (1)	2% (1)	0.34	4%	0%	1.00
Pacemaker placement	9.7% (21)	18% (9)	0.10	7 (26%)	2 (8%)	0.08
Length of stay (days)	6.9 ± 7.5	5.42 ± 3.5	0.17	6 (3)	5.3 (3)	0.7
In-hospital mortality	6.7% (15)	4% (2)	0.75	1 (4%)	1 (4%)	0.50