Table 3.
Echocardiography in the 11 patients included in the data set analysis
| Patient ID | SV (ml) | CO (l/min) |
CI (l/min/m2) |
LV diastolic | sPAP (mmHg) |
RVb (cm) |
FAC (%) |
TAPSE (mm) |
S` (cm/s) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | |||||||||
| Baseline | 53 | 5.3 | 2.3 | normal (E/A 0.8) | 33 | 4.2 | 59 | 14 | 10 |
| LI-NIVSB, (NIV) | 63 (57) | 5.1 (5.7) | 2.2 (2.1) | na | 4.3 | 55 | 18 | 10 | |
| HI-NIV SB (NIV) | 87 (74) | 7.0 (5.6) | 3.1 (2.4) | na | 4.0 | 47 | 17 | 15 | |
| 2 | |||||||||
| Baseline | 56 | 4.6 | 2.7 | normal (E/A 0.9) | na | 3.6 | 44 | 16 | 11 |
| LI-NIV SB (NIV) | 72 | 5.5 (5.9) | 3.2 (3.4) | na | 3.7 | 50 | 11 | 12 | |
| HI-NIV SB (NIV) | 65 | 4.8 (6.3) | 2.8 (3.6) | na | 4.2 | 45 | 15 | 17 | |
| 3 | |||||||||
| Baseline | 54 | 4.9 | 2.8 | normal (E/A 1.2) | na | 3.9 | 57 | 16 | 15 |
| HI-NIV SB (NIV) | 64 (56) | 5.9 (6.2) | 3.3 (3.5) | na | 3.5 | 60 | 21 | 10 | |
| LI-NIV SB (NIV) | 63 (72) | 5.3 (6.3) | 3.0 (3.6) | na | 3.0 | 50 | 17 | 11 | |
| 4 | |||||||||
| Baseline | 72 | 6.9 | 3.8 | normal (E/A 1.1) | na | 2.5 | 70 | 16 | 17 |
| LI-NIV SB (NIV) | 66 (68) | 5.8 (5.3) | 3.3 (3.1) | na | 3.2 | 66 | 19 | 10 | |
| HI-NIV SB (NIV) | 73 (75) | 7.5 (7.7) | 4.3 (4.4) | na | na | na | 19 | 12 | |
| 5 | |||||||||
| Baseline | 53 | 4.4 | 1.8 | restrictive,MV E Vmax 120 cm/s | na | 5.4 | 41 | 20 | na |
| HI-NIV SB (NIV) | 77 (89) | 4.9 (5.6) | 2.0 (2.3) | 29 | 3.7 | 20 | 15 | 10 | |
| LI-NIV SB (NIV) | 104 (75) | 7.8 (6.5) | 3.2 (2.7) | 18 | 4.2 | na | 18 | na | |
| 6 | |||||||||
| Baseline | 60 | 5.0 | 2.9 | normal (E/A 0.7) | 43 | 4.2 | 50 | 20 | 10 |
| HI-NIV SB (NIV) | 56 (na) | 4.0 (na) | 2.3 (na) | 23 | 4.2 | 53 | 23 | 14 | |
| LI-NIV SB (NIV) | 92 (na) | 6.0 (na) | 3.4 (na) | 44 | 4.1 | 45 | 22 | 11 | |
| 7 | |||||||||
| Baseline | 43 | 4.3 | 2.4 | MV E Vmax 80 cm/s | 46 | 4.2 | 11 | 8 | |
| LI-NIV SB (NIV) | 50 (57) | 3.4 (4.1) | 1.9 (2.3) | 37 | 3.8 | 11 | na | ||
| HI-NIV SB (NIV) | 45 (50) | 3.9 (4.5) | 2.2 (2.5) | 31 | 4.5 | 13 | 10 | ||
| 8 | |||||||||
| Baseline | 67 | 5.7 | 3,9 | normal (E/A 0.8) | 33 | 2.7 | 45 | 17 | 12 |
| LI-NIV SB (NIV) | 66 (68) | 5.2 (5.2) | 3.5 (3.5) | 36 | 2.9 | 50 | 17 | 18 | |
| HI-NIV SB (NIV) | 56 (52) | 4.6 (4.2) | 3.2 (2.9) | 36 | 2.9 | 44 | 21 | 10 | |
| 9 | |||||||||
| Baseline | 90 | 7.6 | 4,8 | normal (E/A 0.9) | na | na | na | na | na |
| LI-NIV SB (NIV) | 85 (74) | 6.9 (5.3) | 4.4 (3.4) | 26 | 4.2 | 41 | 18 | 16 | |
| HI-NIV SB (NIV) | 76 (67) | 6.2 (5.5) | 3.9 (3.5) | 30 | 3.7 | 59 | 19 | 14 | |
| 10 | |||||||||
| Baseline | 79 | 6.3 | 3.8 | normal (E/A 0.9) | na | 3.4 | 70 | 15 | 16 |
| HI-NIV SB (NIV) | 84 (69) | 4.9 (4.1) | 2.8 (2.3) | na | 3.9 | na | 21 | 10 | |
| LI-NIV SB (NIV) | 86 (83) | 5.4 (5.3) | 3.1 (3.0) | 23 | 3.6 | 48 | 16 | 10 | |
| 11 | |||||||||
| Baseline | 78 | 4.9 | 2.9 | normal (E/A 0.7) | 34 | 3.2 | 60 | 15 | 15 |
| HI-NIV SB (NIV) | 52 (57) | 3.0 (3.4) | 1.8 (2.0) | na | 3.8 | 40 | 23 | 12 | |
| LI-NIV SB (NIV) | 59 (58) | 4.8 (4.0) | 2.9 (2.4) | 25 | 3.7 | 65 | 25 | 12 | |
| 12 | |||||||||
| Baseline | 86 | 6.8 | 3.8 | normal (E/A 0.9) | 24 | 4.4 | 20 | 12 | |
| HI-NIV SB (NIV) | 81 (68) | 6.9 (6.4) | 3.8 (3.6) | 21 | 4.1 | 25 | 18 | ||
| 13 | |||||||||
| Baseline | 56 | 4.8 | 3.3 | normal (E/A 1.4) | 39 | 2.5 | 13 | 16 | |
| HI-NIV SB (NIV) | 47 (35) | 4.1 (3.1) | 2.9 (2.2) | 43 | 3.1 | 21 | 11 | ||
| 14 | |||||||||
| Baseline | 68 | 4.8 | 3.4 | normal (E/A 0.7) | na | 3.1 | 47 | 18 | 16 |
| LI-NIV SB (NIV) | 61 (60) | 3.5 (3.4) | 2.5 (2.4) | 29 | 3.0 | 50 | 18 | 12 | |
| HI-NIV SB (NIV) | 70 (71) | 5.3 (4.7) | 3.7 (3.3) | 28 | 2.8 | 52 | 14 | 14 | |
Individual data are shown from baseline and during spontaneous breathing (SB) after LI-NIV or HI-NIV; the values obtained during NIV are in brackets. Regular fonts are used in the order of LI-NIV followed by HI-NIV (LIHI), italic fonts in the order of HI-NIV followed by LI-NIV (HILI)
SV Stroke Volume (millilitres (ml)), CO cardiac output (litres/min (l/min), CI Cardiac index (l/min/m2 body surface area), E/A ratio ratio between early and late filling (E- and A-wave) of the LV: MV E Vmax: maximum velocity of the E-wave of mitral valve inflow, sPAP systolic pulmonary artery pressure, RVb basal diameter of the right ventricle, FAC fractional area change, TAPSE tricuspid annular plane systolic excursion, S´ the pulsed Doppler peak velocity at the tricuspid annulus, na not applicable
Patients with ID nr. 7, 12 and 13 (italics) dropped out and were therefore not included in the data analysis