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Table 2 Clinical and radiological outcomes in patients with IAT for acute ischemic stroke caused by proximal arterial intracranial occlusion of the anterior circulation by age

From: The effect of age on outcome after intra-arterial treatment in acute ischemic stroke: a MR CLEAN pretrial study

 

Overall

Tertile 1

Tertile 2

Tertile 3

P for trend

22–93 years

22–55 years

56–70 year

71–93 years

N patients

315

106

113

96

 

Procedural duration in minutes, median (IQR)

116

125

110

116

0.19

(80–153)

(81–160)

(78–143)

(82–158)

Recanalization (TICI 2b and TICI 3)

119 (43 %)

41 (34 %)

45 (38 %)

33 (28 %)

0.46

 TICI 0, n (%)

38 (14 %)

12 (12 %)

12 (12 %)

14 (17 %)

 TICI 1, n (%)

18 (6.0 %)

10 (10 %)

5 (5.0 %)

3 (4.0 %)

 TICI 2a, n (%)

103 (37 %)

36 (36 %)

35 (36 %)

32 (39 %)

 TICI 2b, n (%)

36 (13 %)

13 (13 %)

17 (18 %)

6 (7.0 %)

 TICI 3, n (%)

83 (30 %)

28 (28 %)

28 (29 %)

27 (33 %)

NIHSS after IAT, mean (SD)

13 (12)

12 (10)

13 (11)

15 (13)

0.14

Neurological recovery (decrease in NIHSS of 8 points or more), n (%)

133 (42 %)

47 (44 %)

49 (43 %)

37 (39 %)

Functional outcome, mRS, n (%)

    

0.03

 mRS 0–1, n (%)

37 (12 %)

15 (14 %)

9 (8 %)

13 (14 %)

 mRS 0–2, n (%)

78 (25 %)

29 (27 %)

27 (24 %)

22 (23 %)

 mRS 0–3, n (%)

132 (42 %)

46 (43 %)

49 (43 %)

37 (39 %)

 mRS 0–4, n (%)

222 (70 %)

80 (75 %)

82 (73 %)

60 (63 %)

 mRS 0–5, n (%)

261 (83 %)

96 (91 %)

92 (81 %)

73 (76 %)

Death, n (%)

51 (16 %)

10 (9 %)

20 (18 %)

21 (22 %)

0.01

All adverse events, n (%)

177 (56 %)

46 (43 %)

71 (63 %)

60 (63 %)

0.004

Serious adverse events, n (%)

47 (15 %)

13 (12 %)

18 (16 %)

16 (17 %)

0.11

 Symptomatic intracranial hemorrhage, n (%)

23 (7.0 %)

5 (5.0 %)

8 (7.0 %)

10 (10 %)

 Hemorrhagic transformation infarct, n (%)

6 (2.0 %)

2 (2.0 %)

4 (4.0 %)

0 (0.0 %)

 Progression of ischemic stroke, n (%)

32 (10 %)

8 (8.0 %)

13 (12 %)

11 (12 %)

Neurological adverse events, n (%)

119 (38 %)

38 (36 %)

48 (42 %)

33 (34 %)

0.60

 Asymptomatic intracranial hemorrhage

22 (7 %)

2 (2.0 %)

15 (13 %)

5 (5.0 %)

 hemorrhage, n (%)

 Seizures, n (%)

16 (5.0 %)

4 (4.0 %)

4 (4.0 %)

8 (8.0 %)

Non-neurological adverse events, n (%)

101 (32 %)

20 (19 %)

40 (35 %)

41 (43 %)

0.002

 Pneumonia, n (%)

41 (13 %)

9 (8.0 %)

16 (14 %)

16 (17 %)

 Urinary tract infection, n (%)

18 (6.0 %)

5 (5.0 %)

5 (4.0 %)

8 (8.0 %)

 Cardiac arrhythmias, n (%)

35 (11 %)

3 (3.0 %)

17 (15 %)

15 (16 %)

 Other, n (%)

29 (9.0 %)

8 (8.0 %)

9 (8.0 %)

12 (13 %)