Table 4 Perioperative and follow-up outcomes in the postoperative stroke and no-postoperative strokes groups

No. of patients

97

26

71

Aneurysm residual

3 (3.1)

0 (0)

3 (4.2)

0.287

mRS score 1 month postop

 < 0.001

  < 2

71 (73.2)

7 (26.9)

64 (90.1)

  ≥ 2

26 (26.8)

19 (73.1)

7 (9.9)

Mortality 1 month postop

4 (4.1)

2 (7.7)

2 (2.8)

0.285

Follow-up outcomes

 No. of patients

89

23

66

 Hemorrhage

3 (3.4)

0 (0)

3 (4.5)

0.298

 Aneurysm recurrence

1 (1.1)

0 (0)

1 (1.5)

0.553

 De novo aneurysm formation

3 (3.4)

2 (8.7)

1 (1.5)

0.100

mRS score at last follow-up

 < 0.001

  < 2

75 (84.3)

12 (52.2)

63 (95.6)

  ≥ 2

14 (15.7)

11 (47.8)

3 (4.5)

Mortality at last follow-up

4 (4.5)

2 (8.7)

2 (3.0)

0.259

Neural function deterioration

14 (15.7)

11 (47.8)

3 (4.5)

 < 0.001