Skip to main content

Table 3 Procedural data

From: Left atrial appendage morphology, echocardiographic characterization, procedural data and in-hospital outcome of patients receiving left atrial appendage occlusion device implantation: a prospective observational study

  Watchman ACP 2 All p Value
Success rate, n (%) 21 (95.5) 15 (100) 36 (97.3) 0.403
Complete ostial occlusion (i.e., gap < 5 mm), n (%) 20 (90.9) 14 (93.3) 34 (91.9) 0.791
Positioning attempts, n (IQR) 2.5 (1.75–3) 2 (1.5–5) 2 (2–3) 0.555
Changes of device size, n (IQR) 1 (1–1) 1 (1–2) 1 (1–1) 0.169
Final device size, mm (IQR) 24 (21–27) 25 (22–30) 24 (22–27) -
Duration, min. (IQR) 122.5 (75–136.25) 100 (80–110) 110 (76–135) 0.069
Fluoroscopy time, min. (IQR) 11.7 (7.4–16.8) 12.7 (9.5–17.7) 12.4 (8.5–16.9) 0.244
Reference dose, Gy*cm2 (IQR) 80.5 (45.75–103.25) 62 (52–89) 64 (49–96) 0.842
Amount of contrast agent, ml (IQR) 165 (130–202.25) 140 (110–180) 157 (110–195) 0.833
LAA configuration, n (%)     
 - Chicken-wing 14 (63.6) 11 (73.3) 25 (67.6) 0.536
 - Windsock 3 (13.6) 1 (6.7) 4 (10.8) 0.503
 - Broccoli 4 (18.2) 3 (20) 7 (18.9) 0.890
 - Tub 1 (4.5) 0 (0) 1 (2.7) 0.403
Number of lobi, n (%)     
 - 1 4 (18.2) 3 (20) 7 (18.9) 0.890
 - 2 13 (59.1) 10 (66.7) 23 (62.2) 0.641
 - 3 1 (4.5) 0 (0) 1 (2.7) 0.403
 - Multi 4 (18.2) 2 (13.3) 6 (16.2) 0.694
Days on ICU/IMC, n (IQR) 1 (1–1) 1 (1–1) 1 (1–1) 0.327
Post-procedural days in hospital, n (IQR) 3 (2.25–4) 4 (2.75–5.25) 4 (2.75–5) 0.341
  1. Values are given as medians (25th and 75th percentiles) or total numbers (percentage). ICU intensive care unit, IMC intermediate care unit