Table 3.

Outcomes of primary/secondary M2 patients treated with the ONE-SEG technique.

	All	Primary M2	Secondary M2
Number of patients, n (%)	30 (100)	17 (56.7)	13 (43.3)
Outcome
Procedural outcome
Number of passes, median (IQR)	2 (1–3)	2 (1–3)	2 (1–2.5)
First-pass eTICI score 2c/3, n (%)	6 (20)	3 (17.7)	3 (23.1)
First-pass eTICI score 2b/2c/3, n (%)	12 (40)	7 (41.2)	5 (38.5)
Final eTICI score 2c/3, n (%)	22 (73.3)	12 (70.6)	10 (70.9)
Final eTICI score 2b/2c/3, n (%)	27 (90)	15 (88.2)	12 (92.3)
Safety outcome
Any ICH, n (%)	5 (16.7)	3 (17.7)	2 (15.4)
Symptomatic ICH, n (%)	1 (3.3)	0 (0)	1 (7.7)
Parenchymal hematoma, n (%)	2 (6.7)	0 (0)	2 (15.4)
Subarachnoid hemorrhage, n (%)	0 (0)	0 (0)	0 (0)
Extravasation, n (%)	0 (0)	0 (0)	0 (0)
Spasm, n (%)	1 (3.3)	1 (5.9)	0 (0)
Embolization to distal territory, n (%)	1 (3.3)	1 (5.9)	0 (0)
Embolization to new territory, n (%)	0 (0)	0 (0)	0 (0)
Mortality at 90 days, n (%)	2 (6.7)	1 (5.9)	1 (7.7)
Efficacy outcome
mRS score at discharge, median (IQR)	3 (1–4)	2 (0.5–3)	4 (3–4.5)
mRS score 0–2 at discharge, n (%)	13 (43.3)	11 (64.7)	2 (15.4)
mRS score 0–3 at discharge, n (%)	18 (60)	14 (82.4)	4 (30.8)
mRS score at 3 months, median (IQR)	3 (1–4)	1 (0–3)	3 (2.5–4.5)
mRS score 0–2 at 3 months, n (%)	14 (46.7)	11 (64.7)	3 (23.1)
mRS score 0–3 at 3 months, n (%)	22 (73.3)	15 (88.2)	7 (53.9)

Data are presented as number (%) or median (interquartile range) values.

eTICI, expanded Thrombolysis in Cerebral Infarction; ICH, intracranial hemorrhage; mRS, modified Rankin Scale; ONE-SEG technique, combining the deployment of only the distal basket segment of the EMBOTRAP III and aspiration catheter. Bold values in Primary M2, M2 occlusion that occurred de novo; Secondary M2, M2 occlusion from occlusion of a large vessel due to migration or fragmentation of a thrombus.