Table 3.

DUS results: Comparison of postoperative day 1 and 12 months.

	Carotid artery stenting group (n  =  29)						Patch closure group (n  =  65)
					95%CI						95%CI
DUS parameters	MD	SD	t	P‐value	lower	upper	MD	SD	t	P‐value	lower	upper
Proximal ICA
luminal diameter (mm)	‐1.09	1.95	‐2.85	0.00*	‐1.88	‐0.30	0.64	1.73	2.80	0.00*	0.18	1.10
PSV (cm/s)	1.62	34.38	0.24	0.80	‐11.97	15.23	‐9.15	60.78	‐1.15	0.25	‐22.99	6.68
EDV (cm/s)	2.14	18.21	0.61	0.54	‐5.05	9.35	‐0.54	26.56	‐0.15	0.81	‐7.46	6.38
Distal ICA
luminal diameter (mm)	0.00	0.56	0.03	0.97	‐0.21	0.22	0.10	0.69	1.16	0.24	‐0.07	0.29
PSV (cm/s)	0.92	30.85	0.15	0.87	11.28	13.13	1.55	29.05	0.41	0.68	‐6.01	9.13
EDV (cm/s)	1.07	9.44	0.59	0.56	‐2.66	4.80	0.93	2.11	0.47	0.63	‐2.13	3.27
CCA
luminal diameter (mm)	0.24	1.34	0.93	0.36	‐0.29	0.77	0.07	1.49	0.39	0.69	‐0.31	0.47
PSV (cm/s)	‐9.77	26.22	‐1.93	0.06	‐20.15	0.59	3.72	30.56	0.92	0.35	‐4.31	11.76
EDV (cm/s)	‐8.22	23.41	‐1.82	0.07	‐17.49	1.03	3.93	17.07	1.76	0.08	‐0.51	8.38

CCA, common carotid artery; CI, confidence interval; DUS, duplex ultrasound; EDV, end‐diastolic velocity; ICA, internal carotid artery; MD, mean difference; PSV, peak systolic velocity; SD, standard deviation; t, value of the paired t‐test.

^*, highly significant.