Fig. 2

a transports per year. Out of all peripheral ECMO requests, the ECMO team deployed in a total of 169 times. In 2009 and 2012, the observable rise in ECMO transport was traceable to the H1N1 epidemic in Germany. b 126 patients were cannulated at the referring site (primary transports), 30 were transported without ECMO but with intent to treat, with 21 receiving subsequent cannulation at the University Hospital Bonn. In 9 cases, subsequently no ECMO therapy was required. Out of all performed ECMO procedures, 137 were cannulated veno-venous, 10 veno-arterial. c: majority of transports (n = 138) were ground based, the remainder (n = 24) by helicopter. d transport duration and distance by mode of transport, airborne: Intensive care transport helicopter, ground based: ambulance, IQR: Interquartile range. Airborne duration: Median 83 min, IQR 45–120, ground based duration Median 74.8 min IQR 50–95, IHT distance Median 81.4 km IQR 72.1–129.5, ground transportation distance: Median 36 km IQR 15.7–60. e demographic stats: Age Median 49.3 years, IQR 39.4–59.3; 94 males, 73 females. f BMI distribution as histogramm, indicating the majority of patients being overweight to obese, as indicated by a BMI > 25. BMI Median 27.8, IQR 24.8–34, minimum 15.4, maximum 86.5, underlying weight for BMI calculation: Median 85.0 kg IQR 75–100, minimum 40.0, maximum 250 kg. Underlying height for BMI calculation: Median 1.74 m, IQR 1.65–1.8