Variable | NAVA (n = 36)a | PSV (n = 36)a |
---|---|---|
Assigned mode adherence, % (median, 95% CI)b | 83.1 (64.0–97.1) | 100.0 (100.0–100.0) |
Compliant participants (≥ 65% adherence), n (%, 95% CI)c | 24 (66.7, 50.3–80.0) | 36 (100.0, 89.0–100.0) |
Proportion of time cross-over, % (median, 95% CI)c | 16.9% (2.9–37.5) | 0.0 (0.0–0.0) |
Total time in NAVA, h (median, IQR) | 42.5 (4.5–150.5) | 0.0 (0.0–0.0) |
Total time in PSV, h (median, IQR) | 12.0 (2.0–29.0) | 89.0 (13–185.5) |
Participants with cross-over, n (%) | 28 (77.8) | 3 (8.1) |
Reasons for cross-over, n (%)d | ||
 Edi signal problem | 10 (27.8) | – |
  Edi signal noise or interference | 8 (22.2) | – |
  Low or absent Edi | 2 (5.6) | – |
 Clinical rationale/clinical team preference | 11 (30.6) | 3 (8.3) |
  General instability or deterioration | 7 (19.4) | 1 (2.8) |
  Tachypnoea | 1 (2.8) | – |
  Ventilator dyssynchrony | 1 (2.8) | 3 (8.3) |
 Lack of trial awareness | 5 (13.9) | – |
 Clinical inexperience with NAVA | 4 (11.1) | – |
 NAVA tube insertion difficulty | 2 (5.6) | – |
 NAVA catheter removed for tor transfer | 1 (2.8) | – |
 Not documented | 8 (22.2) | – |
Participants with > 1 reason for cross-over | 8 (22.2) | – |