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Table 2 Clinical course and outcome according to coagulation status: Group I (low anticoagulation status) included patients with both INR below 2.0 and aPTT ratio below 1.50; Group II (adequate anticoagulation status) included patients with either INR ≥ 2.0 or aPTT ratio ≥ 1.50

From: Thromboembolic stroke in patients with a HeartMate-II left ventricular assist device – the role of anticoagulation

 

Overall (n = 38)

Coagulation status at the time of event

Coagulation status two weeks prior of event

 

N (%)

Group I (n = 12)

Group II (n = 26)

p

Group I (n = 8)

Group II (n = 30)

p

Complications

       

 Tamponade

6 (16 %)

0

6 (23 %)

.15

1 (13 %)

5 (17 %)

.99

 Rethoracothomy

7 (18 %)

0

7 (27 %)

.07

1 (13 %)

6 (20 %)

.99

 Infection

9 (24 %)

2 (17 %)

7 (27 %)

.69

2 (25 %)

7 (23 %)

.99

 GI bleeding

2 (5 %)

0

2 (8 %)

.99

0

2 (7 %)

.99

 RV failure

8 (21 %)

2 (17 %)

6 (23 %)

.99

2 (25 %)

6 (20 %)

.99

 AKI

2 (5 %)

1 (8 %)

1 (4 %)

.54

1 (13 %)

1 (3 %)

.38

Median duration of follow-up in days (Q1-Q3)

275 (75–522)

299

242

.94

314

254

.96

Median duration of LVAD support in days (Q1-Q3)

279 (134–540)

321

279

.96

314

279

.97

Death before transplant

4 (11 %)

1 (8 %)

3 (12 %)

.99

1 (13 %)

3 (10 %)

.99

Transplanted and alive

9 (24 %)

2 (17 %)

7 (27 %)

.69

1 (13 %)

8 (27 %)

.65

Transplanted and deceased

1 (3 %)

0

1 (4 %)

.99

0

1 (3 %)

.99

Weaned from LVAD

3 (8 %)

0

3 (12 %)

.54

1 (13 %)

2 (7 %)

.99

On-going LVAD support

21 (55 %)

9 (75 %)

12 (46 %)

.16

5 (63 %)

16 (53 %)

.71

Thromboembolic stroke

6 (16 %)

2 (17 %)

4 (15 %)

.99

0 (0 %)

6 (20 %)

<.001

Stroke rate during LVAD support (event/patient/year)

.160

.169

.156

.99

-

.173

<.001