The effect of restrictive versus liberal selection criteria on survival in ECPR: a retrospective analysis of a multi-regional dataset

Table 1 ECPR inclusion criteria selected for analysis

^*At the time of randomization in the field, patients were excluded if they had an anticipated time from cardiac arrest to start of cannulation of > 60 min. However, once in the emergency department, patients already randomized were not excluded if > 60 min at point of cannulation
^**No prescribed time limit however < 60 min was based on sum of mean times: call to ambulance arrival (6 min) + EMS scene time (22 min) + inclusion criteria < 30 min transport time, therefore approximately 60 min cut off. Other logistical criteria: able to fit CPR device and exclusion if cath lab unavailable or absolute CI to emergent angiography (contrast allergies; active GI or internal bleeding)
^***Metabolic exclusion criteria (applied after randomization but ECMO not initiated) two or more of the following: end-tidal CO₂ < 10 mm Hg, PaO₂ < 50 mm Hg or oxygen saturation < 85%, and lactate > 18 mmol/L
^****Physician discretion regarding timing, informal < 45 min to achieve target of ECMO support by 60 min; a mechanical CPR device needed to be available
^*****Variations of the definition of end-stage disease (or similar wording) are listed in the appendix (Additional file 1: Table A1)
Shaded squares represent not specified characteristics

ISSN: 1757-7241