All patients Influenza COVID-19
Number of patients n = 45 n =17 n = 28 P-value
Characteristics
Age (years) 51.9 ± 11.2 49.5 ± 13.2 53.3 ± 9.8 0.314
Male 28 (62%) 9 (53%) 19 (68%) 0.317
Body surface area (cm2) 2.11 ± 0.27 2.24 ± 0.27 2.04 ± 0.35 0.036
Body mass index 34.95 ± 7.82 37.58 ± 9.06 33.36 ± 6.63 0.107
Underlying Conditions
Pre-ECMO positive blood culture 10 (22%) 4 (24%) 6 (0%) 0.869
Smoking 10 (22%) 5 (29%) 5 (18%) 0.366
Coronary artery disease 3 (7%) 3 (18%) 0 (0%) 0.021
Chronic lung disease 5 (11%) 3 (18%) 2 (7%) 0.277
Diabetes 13 (29%) 5 (29%) 8 (29%) 0.952
Pre-ECMO acute renal injury 18 (40%) 10 (59%) 8 (29%) 0.045
Pre-ECMO Immunotherapy 28 (62%) 2 (12%) 26 (93%) <0.001
Pre-ECMO Vital Signs
Temperature (°F) 99.7 ± 1.8 100.1 ± 2.0 99.04 ± 1.6 0.074
Heart Rate 107.2 ± 25.5 115.8 ± 26.5 102.0 ± 23.9 0.089
Respiratory rate 27.4 ± 4.7 26.9 ± 4.6 27.7 ± 4.8 0.581
Mean arterial pressure (mm Hg) 82.3 ± 15.7 78.1 ± 12.8 84.9 ± 15.1 0.115
FiO2 (%) 95.3 ± 13.1 96.6 ± 14.6 94.6 ± 12.3 0.640
PEEP (cm) 15.2 ± 5.4 15.6 ± 6.8 15.0 ± 4.6 0.750
Other
Transfer from outside hospital 29 (64%) 11 (65%) 18 (64%) 0.977
ECMO initiated other than our hospital 16 (36%) 2 (12%) 14 (50%) 0.009
Use of Avalon cannula 15 (38%) 15 (88%) 2 (7%) <0.001