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Table 1 Baseline characteristics of patients with and without postoperative stroke

From: Risk factors and outcomes of postoperative stroke in surgical treatment for giant intracranial aneurysms

Characteristic

All Pts (n = 97)

Postop stroke

p value

Present (n = 26)

Absent (n = 71)

Mean age, years

47.79 ± 14.49

45.85 ± 16.00

48.51 ± 13.95

0.426

Age < 18 years

6 (6.2)

2 (7.7)

4 (5.6)

0.709

Sex

   

0.940

 Male

33 (34.0)

9 (34.6)

24 (33.8)

 

 Female

64 (66.0)

17 (65.4)

47 (66.2)

 

Onset symptoms

   

0.066

 SAH

11 (11.3)

3 (11.5)

8 (11.3)

 

 Neurological deficits

36 (37.1)

7 (26.9)

29 (40.8)

 

 Headache

28 (28.9)

13 (50.0)

15 (21.1)

 

 Dizziness

10 (10.3)

2 (7.7)

8 (11.3)

 

 Asymptomatic

12 (12.4)

1 (3.8)

11 (15.5)

 

Medical history

    

 Smoking

14 (14.4)

5 (19.2)

9 (12.7)

0.416

 Drinking

10 (10.3)

2 (7.7)

8 (11.3)

0.608

 Diabetes

4 (4.1)

0 (0)

4 (5.6)

0.216

 Hypertension

41 (42.3)

11 (42.3)

30 (42.3)

0.996

 Hyperlipidemia

3 (3.1)

0 (0)

3 (4.2)

0.287

Preop mRS score

   

0.934

  < 2

93 (95.9)

25 (96.2)

68 (95.8)

 

  ≥ 2

4 (4.1)

1 (3.8)

3 (4.2)

 

Recurrent aneurysm

8 (8.2)

6 (23.1)

2 (2.8)

0.001

Multiple aneurysm

18 (18.6)

3 (11.5)

15 (21.1)

0.282

Size, cm

2.96 ± 6.23

3.12 ± 6.46

2.89 ± 6.07

0.107

  < 3.5 cm

78 (80.4)

17 (65.4)

61 (85.9)

0.024

  ≥ 3.5 cm

19 (19.6)

9 (34.6)

10 (14.1)

 

Location

   

0.913

 Anterior circulation

90 (92.8)

24 (92.3)

66 (93.0)

 

 Posterior circulation

7 (7.2)

2 (7.7)

5 (7.0)

 

Shape

   

0.416

 Saccular

91 (93.8)

23 (88.5)

68 (95.8)

 

 Fusiform

2 (2.1)

1 (3.8)

1 (1.4)

 

 Serpentine

4 (4.1)

2 (7.7)

2 (2.8)

 

Surgical modalities

   

0.077

 Clipping

85 (87.7)

21 (80.8)

64 (90.1)

 

 Trapping with bypass

8 (8.2)

5 (19.2)

3 (4.2)

 

 ICA ligation

1 (1.0)

0 (0)

1 (1.4)

 

 Bypass alone

3 (3.1)

0 (0)

3 (4.2)

 

LOS, days

19.39 ± 8.90

23.04 ± 8.39

18.06 ± 8.76

0.014

  1. Data are n (%) unless otherwise indicated. Mean values are given with SDs
  2. SAH Subarachnoid hemorrhage, Preop Preoperative, mRS Modified ranking scale, LOS Length of hospital stays