Table 2.
Patient data before starting cardiac extracorporeal membrane oxygenation (ECMO), for the Princess Alexandra Hospital and the Gold Coast University Hospital combined
| Cardiac ECMO | |||
|---|---|---|---|
| Total number of cases | 27 | ||
| Median age (range), years | 52 (18–69) | ||
| Sex, male | 19 (70%) | ||
| Median weight (range), kg | 80 (45–150) | ||
| Median body mass index (range) | 25.4 (15.0–45.3) | ||
| Acute cardiogenic shock diagnosis group (one or more per patient) | |||
| Myocarditis | 2 (7%) | ||
| Refractory VT/VF | 3 (11%) | ||
| Post-heart or lung transplantation | 0 (0%) | ||
| Congenital heart disease | 1 (4%) | ||
| Other diagnoses | 24 (89%) | ||
|
10 (37%) | ||
|
6 (22%) | ||
|
4 (15%) | ||
|
3 (11%) | ||
|
3 (11%) | ||
| Acute pre-ECMO organ failures | |||
| Liver failure | 19 (70%) | ||
| CNS dysfunction | 2 (7%) | ||
| Acute renal failure | 14 (52%) | ||
| Chronic renal failure | 1 (4%) | ||
| Duration of intubation prior to ECMO, hours | |||
| < 10 | 19 (70%) | ||
| 11–29 | 7 (26%) | ||
| ≥ 30 | 1 (4%) | ||
| Peak inspiratory pressure ≤ 20* | 4 (15%) | ||
| Pre-ECMO cardiac arrest | 8 (30%) | ||
| Diastolic blood pressure ≥ 40* | 15 (56%) | ||
| Pulse pressure ≤ 20* | 14 (52%) | ||
| HCO3 before ECMO ≤ 15* | 18 (67%) | ||
| SAVE risk class | Predicted mortality (%) | Number of patients | |
| SAVE | AH cohort | ||
| I | 25% | 0% | 0 (0%) |
| II | 42% | 10% | 1 (4%) |
| III | 58% | 28% | 7 (26%) |
| IV | 70% | 37% | 10 (37%) |
| V | 82% | 94% | 9 (33%) |
AH = Alfred Hospital; CNS = central nervous system; HCO3 = bicarbonate; NO = nitric oxide; SAVE = Survival after Veno-arterial ECMO; STEMI = ST elevation myocardial infarction; VF = ventricular fibrillation; VT = ventricular tachycardia. All patients aged > 18 years treated with ECMO for cardiac failure.
Worst value in 6 hours before ECMO start time. Data collected using Extracorporeal Life Support Organization (ELSO) rules in place when SAVE scores were developed. Two of the patients with refractory VT/VF had myocarditis and one had STEMI; one patient had STEMI after non-transplant cardiac surgery; one patient had non-transplant cardiac surgery for ventricular septal defect complicating STEMI.