Table 3.

Comparison of clinical characteristics and endovascular procedure findings according to preprocedural occlusion types in vertebrobasilar artery occlusions.

	TTO (n = 29)	BSO (n = 31)	p-value
CLINICAL CHARACTERISTICS
Age, years	67 ± 9	67 ± 10	0.892
Male sex	18 (62.1%)	18 (58.1%)	0.752
Diabetes mellitus	10 (34.5%)	7 (22.6%)	0.307
Hypertension	22 (75.9%)	18 (58.1%)	0.144
Atrial fibrillation	9 (31.0%)	16 (51.6%)	0.106
CAOD	2 (6.9%)	2 (6.5%)	0.945
Hypercholesterolemia	10 (34.5%)	9 (29.0%)	0.650
Smoking	11 (37.9%)	5 (16.1%)	0.056
Admission NIHSS score, median [IQR]	20.0 [13.5–26.5]	19.0 [11.0–27.0]	0.960
REPERFUSION TREATMENT
IV thrombolysis	12 (41.4%)	20 (64.5%)	0.073
Onset-to-puncture time (min)	406 ± 240	349 ± 303	0.427
Procedure time (min)	79 ± 46	62 ± 40	0.143
Reocclusion after primary treatment	12 (42.9%)	1 (3.2%)	< 0.001
Tirofiban infusion	7 (24.1%)	1 (3.2%)	0.017
Intracranial balloon	8 (27.6%)	0 (0.0%)	0.002
Intracranial stenting	3 (10.3%)	2 (6.5%)	0.586
Number of techniques	2.0 [1.0–2.0]	1.0 [1.0–2.0]	0.044
Final AOL			< 0.001
0	2 (6.9%)	5 (16.1%)
1	2 (6.9%)	1 (3.2%)
2	17 (58.6%)	0 (0.0%)
3	8 (27.6%)	25 (80.6%)
Successful reperfusion	26 (89.7%)	25 (80.6%)	0.329
Post-procedure reocclusion	4/25 (16.0%)	2/26 (7.7%)	0.357
ANGIOGRAPHIC ANALYSIS OF ETIOLOGY			< 0.001
Complete recanalization	7 (24.1%)	26 (83.9%)
Significant fixed focal stenosis	21 (72.4%)	1 (3.2%)
Intractable	1 (3.4%)	3 (9.7%)
Others	0 (0.0%)	1 (3.2%)
OUTCOMES
Serious hemorrhagic complications	2 (7.1%)	1 (3.2%)	0.494
3-month mRS 0–2	8 (27.6%)	17 (54.8%)	0.032

The data are presented as the mean ± standard deviation, number (%), or median [interquartile range]. TTO, truncal-type occlusion; BSO, branching-site occlusion; CAOD, coronary artery obstructive disease; NIHSS, National Institutes of Health Stroke Scale; IV, intravenous; AOL, arterial occlusive lesion; mRS, modified Rankin Scale.