Baseline characteristics | |||||
Male sex | 9 [90] | ||||
Age (years) | 52 (50–55) | ||||
Reason for ECMO | |||||
Refractory cardiac arrest | 6 [60] | ||||
Cardiogenic shock | 4 [40] | ||||
Presence of severely impaired left ventricular systolic function | 10 [100] | ||||
Time from ECMO start to study inclusion (days), min to max | 0–1 | ||||
Successful ECMO weaning | 5 [50] | ||||
Good neurologic outcome (CPC 1–2) | 3 [30] | ||||
Post-oxygenator paO2 after contrast-enhanced ultrasound (mmHg) | 489 (439–507) | ||||
Safety parameters | |||||
Variable | Baseline (n = 10) | 5 min (n = 10) | 15 min (n = 10) | 2 h (n = 9) | 6 h (n = 8) |
Ventilator FiO2 (%) | 48 (40–80) | 48 (40–80) | 48 (40–80) | 55 (45–80) | 48 (40–70) |
Peak pressure (mbar) | 19.5 (18–21) | 19 (18–21) | 19 (18–21) | 20 (19–23) | 18 (18–23) |
MAP (mmHg) | 73 (70–81) | 73 (64–93) | 73 (64–93) | 77 (73–82) | 82 (74–94) |
Norepinephrine (μg/kg/min) | 0.34 (0.209–0.670) | 0.250 (0.148–0.480) | 0.250 (0.148–0.480) | 0.420 (0.190–0.620) | 0.410 (0.142–0.715) |
Heart rate (bpm) | 97 (66–111) | 91 (64–107) | 90 (64–107) | 80 (61–105) | 95 (72–107) |
Pump speed (rpm) | 2776 (2530–3151) | 2698 (2530–3000) | 2698 (2530–3000) | 2741 (2530–3000) | 3050 (2590–3300) |
Blood flow (l/min) | 2.23 (1.61–2.90) | 2.13 (1.58–2.63) | 2.13 (1.58–2.63) | 2.37 (1.70–2.80) | 2.76 (2.10–3.31) |
New-onset pupil dilation and/or anisocoria | 0 | 0 | 0 | 0 | 0 |
SD overall | SD within | Mean change (95% confidence interval) | pvalue* | ||
Ventilator FiO2 (%) | 23.72 | 8.59 | − 3.39 (− 7.54 to 0.75) | 0.109 | |
Peak pressure (mbar) | 3.71 | 1.11 | 0.44 (− 0.63 to 1.51) | 0.420 | |
MAP (mmHg) | 13.32 | 8.31 | − 1.03 (− 8.31 to 6.25) | 0.781 | |
Norepinephrine (μg/kg/min) | 0.32 | 0.15 | − 0.23 (− 0.18 to 0.13) | 0.774 | |
Heart rate (bpm) | 25.84 | 5.68 | − 0.87 (− 5.68 to 3.93) | 0.721 | |
Pump speed (rpm) | 1305.51 | 159.90 | 0.67 (− 86.46 to 87.80) | 0.988 | |
Blood flow (l/min) | 0.84 | 0.41 | 0.073 (− 0.15 to 0.29) | 0.512 |