Table 2.

Procedural characteristics and outcomes.

	IDH (N = 18)	non-IDH (N = 23)	p value
Procedural Characteristics
Approach			0.69
Transfemoral, n (%)	15 (83)	21 (91)
Transsubclavian, n (%)	2 (11)	1 (4)
Transaortic, n (%)	1 (6)	1 (4)
Balloon pre-dilatation, n (%)	4 (22)	1 (4)	0.16
Balloon post-dilatation, n (%)	9 (50)	16 (70)	0.33
Contrast volume, mL	110 (80–152)	116 (98–142)	0.39
Procedure time, min	634 (44–98)	54 (44–74)	0.75
Fluoroscopy time, min	26 (15–37)	21 (18–31)	0.91
Procedure Outcomes
Procedure success, n (%)	18 (100)	23 (100)	1.00
Coronary obstruction, n (%)	0 (0)	0 (0)	1.00
Percutaneous cardiopulmonary bypass, n (%)	0 (0)	0 (0)	1.00
Conversion to open–heart surgery, n (%)	0 (0)	0 (0)	1.00
Valve–in–valve, n (%)	0 (0)	0 (0)	1.00
Pericardial tamponade, n (%)	0 (0)	0 (0)	1.00
Vascular complications, n (%)	2 (11)	0 (0)	0.19
Stroke, n (%)	0 (0)	1 (4)	0.56
Life threatening Bleeding, n (%)	1 (6)	0 (0)	0.44
Need for blood transfusion, n (%)	4 (22)	5 (22)	0.97
Myocardial infarction, n (%)	0 (0)	0 (0)	1.00
New pacemaker, n (%)	1 (6)	2 (9)	1.00
New–onset atrial fibrillation, n (%)	0 (0)	0 (0)	1.00
Length of stay, days	15 (13–19)	16 (10–25)	0.80
Discharge to home, n (%)	15 (83)	19 (83)	0.95

Values are median (interquartile range) or n (%). Abbreviations as in Table 1.