TABLE 3.
Description of echocardiographic parameters
| Variable | Total n (%) | PaO2/FiO2 > 300 n (%) | PaO2/FiO2 300–200 n (%) | PaO2/FiO2 200–100 n (%) | PaO2/FiO2 < 100 n (%) | p |
|---|---|---|---|---|---|---|
| LVDD | 27 (13.2) | 0 | 3 (10) | 12 (12.2) | 12 (19.3) | 0.21 |
| LVEF | 33 (17.5) | 4 (12.1) | 8 (24.2) | 14 (42.4) | 7 (21.2) | 0.24 |
| MAPSE | 46 (27.5) | 4 (8.7) | 10 (21.7) | 24 (52.2) | 8 (17.4) | 0.39 |
| RV basal diameter | 69 (37.5) | 6 (8.7) | 9 (13) | 34 (49.3) | 20 (29) | 0.87 |
| RV FS | 22 (11.9) | 2 (9.1) | 4 (18.2) | 7 (31.8) | 9 (40.9) | 0.32 |
| TAPSE | 33 (17.1) | 3 (9.1) | 4 (12.1) | 8 (24.2) | 18 (54.5) | <0.001 |
| RV S wave | 26 (13.5) | 2 (7.7) | 6 (23.1) | 6 (23.1) | 12 (46.1) | 0.03 |
| TAPSE/PASP ratio | 14 (11.02) | 2 (14.3) | 0 | 2 (14.3) | 10 (71.4) | <0.001 |
| E/e´ ratio | 31 (18.9) | 0 | 2 (6.4) | 17 (54.8) | 12 (38.7) | 0.10 |
| E/A ratio | 43 (21.1) | 2 (14.3) | 5 (16.7) | 19 (19.4) | 17 (27.4) | 0.54 |
| PASP | 119 (58.3) | 9 (64.3) | 17 (56.7) | 46 (46.9) | 47 (75.8) | <0.001 |
| PAAT | 162 (91) | 12 (7.4) | 21 (48.1) | 78 (48.1) | 51 (31.5) | 0.25 |
| IVC diameter (max) | 45 (23.9) | 2 (4.4) | 8 (17.8) | 25 (55.6) | 10 (22.2) | 0.47 |
| IVC distensibility | 130 (72.6) | 12 (9.2) | 23 (17.7) | 65 (50) | 30 (23.1) | 0.04 |
| Anterior hypokinesia | 15 (7.9) | 4 (28.6) | 5 (16.7) | 5 (5.6) | 1 (1.8) | <0.001 |
| Anterior dyskinesia | 1 (.5) | 0 | 1 (3.3) | 0 | 0 | <0.001 |
| Inferior hypokinesia | 17 (9) | 4 (28.6) | 7 (23.3) | 5 (5.6) | 1 (1.8) | <0.001 |
| Anteroseptal hypokinesia | 14 (7.4) | 3 (21.4) | 6 (20) | 4 (4.4) | 1 (1.8) | <0.001 |
| Inferolateral hypokinesia | 13 (6.9) | 3 (21.4) | 5 (16.7) | 4 (4.4) | 1 (1.8) | 0.01 |
| Anterolateral hypokinesia | 14 (7.4) | 3 (21.4) | 6 (20) | 4 (4.4) | 1 (1.8) | <0.001 |
| Inferoseptal hypokinesia | 13 (6.9) | 3 (21.4) | 5 (16.7) | 4 (4.4) | 1 (1.8) | 0.01 |
| PE | 16 (8.4) | 1 (7.7) | 1 (3.4) | 10 (10.7) | 4 (7.3) | 0.69 |
| Valvular diseases | 23 (12.6) | 3 (21.4) | 6 (20) | 12 (13.5) | 2 (4) | 0.06 |
Values out of range.
Abbreviations: LVDD, left ventricular diastolic diameter; LVEF, left ventricular ejection fraction; MAPSE, mitral annular plane systolic excursion; LVOT VTI, left ventricular outflow tract velocity‐time integral; SV, stroke volume; CO, cardiac output; RV, right ventricular; FS, fractional shortening; TAPSE, tricuspid annular plane systolic excursion; S wave, peak systolic tissue velocity at the tricuspid annulus; LUS, lung ultrasound; PASP, pulmonary artery systolic pressure; PAAT, pulmonary acceleration time; IVC, inferior vena cava; PE, pericardial effusion.
Normal values: LVDD: < 55 mm; LVEF: ≥50%; MAPSE: ≥13 mm; LVOT VTI: 18–22 cm; SV: 60–100 ml/beat; CO: 4–8 L/min; RV basal diameter: ≤41 mm; FS: ≥35%; TAPSE: ≥17 mm; S wave: ≥9.5 cm/seg; TAPSE/PASP ratio: < 0.31; E/e ratio: < 14; E/A ratio: > 2; PASP: < 35 mm Hg; Paat: > 106 mseg; IVC diameter (max): < 21 mm; IVC distensibility: > 18%.