. Author manuscript; available in PMC: 2020 May 22.

Published in final edited form as: J Cardiothorac Vasc Anesth. 2019 Nov 9;34(3):726–732. doi: 10.1053/j.jvca.2019.10.053

Table 2.

Epiaortic Scanning in REGROUP Trial, Summary Data

	Statistic	OVH (n = 574) n (%)	EVH (n = 576) n (%)	Total (n = 1150) n (%)	p Value
Epiaortic scanning performed	n	392	398	790	0.601
No	n (%)	262 (66.8)	259 (65.1)	521 (65.9)
Yes	n (%)	130 (33.2)	139 (34.9)	269 (34.1)
Findings	n	130	139	269	0.266
No ILA is seen by EAU	n (%)	97 (74.6)	106 (76.3)	203 (75.5)
Simple ILA (<4 mm protrusion into lumen) or focal calcification	n (%)	28 (21.5)	31 (22.3)	59 (21.9)
Complex ILA (>4 mm protrusion, mobile)	n (%)	5 (3.8)	1 (0.7)	6 (2.2)
Missing data	n (%)	0 (0.0)	1 (0.7)	1 (0.4)
Surgical plan for aortic cannulation/clamping modified	n	130	139	269	0.299
No	n (%)	123 (94.6)	127 (91.4)	250 (92.9)
Yes	n (%)	7 (5.4)	12(8.6)	19 (7.1)

Abbreviations: EAU, epiaortic ultrasound; EVH, endosopic vein harvest; ILA, intraluminal atheroma; OVH, open vein harvest.