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Table 2 Procedural data and intra-hospital outcome

From: Real-world experience comparing two common left atrial appendage closure devices

 

Watchman™ (n = 154)

Amplatzer™ Amulet™ (n = 35)

p value*

OR (95% CI)

Successful implantation, n (%)

148 (96.1)

34 (97.1)

1.00

1.38 (0.16–11.84)

Intraprocedural device dislodgement, n (%)

2 (1.3)

0 (0.0)

1.00

0.86 (0.04–18.31)

 

Watchman™ (successful n = 148)

Amplatzer™ Amulet™ (successful n = 34)

p value*

OR (95% CI)

Peri-device leak < 5 mm, n (%)

2 (1.4)

0 (0.0)

1.00

0.85 (0.03–18.11)

Access site bleeding, each n (%)

12 (8.1)

6 (17.6)

0.11

0.41 (0.12–1.36)

 Minor bleeding

6 (4.1)

2 (5.9)

0.64

1.48 (0.28–7.68)

 Major bleeding

2 (1.4)

3 (8.9)

0.046

7.07 (1.13–44.09)

 Pseudoaneurysm

4 (2.7)

1 (3.0)

1.00

1.09 (0.11–10.01)

Pericardial effusion

12 (8.1)

2 (5.9)

1.00

1.41 (0.27–9.64)

 Without hemodynamic impact

7 (4.7)

2 (5.9)

0.68

0.79 (0.14–5.83)

 With hemodynamic impact

3 (2.0)

0 (0.0)

1.00

 Tamponade

2 (1.4)

0 (0.0)

1.00

Intra-hospital stroke, n (%)

0 (0.0)

0 (0.0)

1.00

Postprocedural device dislodgement, n (%)

1 (0.7)

0 (0.0)

1.00

1.43 (0.06–35.77)

Intra-hospital death, n (%)

1 (0.7)

1 (2.9)

0.34

4.46 (0.27–73.12)

Postprocedural antithrombotic therapy in the first 6 months, each n (%)

 DAPT

140 (94.6)

34 (100.0)

0.36

 OAC plus clopidogrel

2 (1.4)

0 (0.0)

1.00

 45 days LMWH plus one antiplatelet agent, DAPT afterwards

6 (4.1)

0 (0.0)

0.60

  1. ASA Acetylsalicylic acid, CI Confidence interval, DAPT Dual antiplatelet therapy, LMWH Low molecular weight heparin, OAC Oral anticoagulation, OR Odds ratio
  2. *Fisher’s exact test for the comparison of both groups, p < 0.05 indicates statistical significance