Table 1 Baseline characteristics of acute ischemic stroke patients treated with mechanical thrombectomy.

From: Machine learning-enabled prediction of hemorrhagic transformation post-thrombectomy using quantitative DSA

variables

All (n = 171)

HT (n = 68)

Non-HT (n = 103)

P value

age (y, median, IQR)

66 (19–86)

69 (33–85)

63 (19–86)

0.006*

Male, n(%)

117 (68.42)

44 (64.7)

73 (70.9)

0.396

Time since stroke onset (h, mean ± sd)

5.92 ± 5.13

6.10 ± 6.16

5.81 ± 4.33

0.853

Past Medical History (n, %)

Hypertension

97 (56.72)

39 (57.35)

58 (56.31)

0.893

Diabetes mellitus

36 (21.05)

16 (23.53)

20 (19.42)

0.519

Atrial fibrillation

29 (16.96)

10 (14.71%)

19 (18.45%)

0.174

Admission NIHSS (median, IQR)

16 (6–40)

18 (6–40)

15 (6–35)

0.077*

Admission GCS (median, IQR)

11 (3–14)

10 (3–15)

11 (3–15)

0.393

Admission Aspect(mean ± sd)

7.42 ± 2.64

7.11 ± 2.64

7.63 ± 2.33

0.195

Occlusion site (n, %)

   

0.148

ICA

26 (15.20)

10 (14.71)

16 (15.53)

 

MCA

98 (57.31)

34 (50.00)

64 (62.14)

 

ACA

2 (1.18)

0 (0)

2 (1.94)

 

ICA-MCA

44 (25.73)

23 (33.82)

21 (20.39)

 

ICA-ACA

1 (0.58)

1 (1.47)

0 (0)

 

Balloon assisted (n, %)

78 (45.61)

33 (48.53)

45(43.69)

0.534

Stent implementation (n, %)

43 (25.15)

17 (25.00)

26 (25.24)

0.971

Balloon expansion

78 (45.61)

33 (48.53)

45 (43.69)

0.534

Simple suctioning

13 (7.60)

5 (7.35)

8 (7.62)

0.948

PTR (min, median, IQR)

42 (3–78)

42 (13–78)

40.5 (3–72)

0.595

Attempts for Thrombectomy (median, IQR)

2 (1–6)

3 (1–6)

2 (1–5)

0.002*

ETICI

   

0.278

2b/2c

31 (18.13)

15 (22.06)

16 (15.53)

 

3

140 (81.87)

53 (77.94)

87 (84.47)

 
  1. HT: Hemorrhagic Transformation; ICA: Internal carotid artery; MCA: Middle cerebral artery; ACA: Anterior cerebral artery; PTR: Puncture-to-reperfusion time.
  2. * p < 0.1.