Table 1.
Patient Characteristics
| Total Patients, n (%) | |
|---|---|
| Maternal count | 358 (100) |
| Antepartum cases with fetal outcome | 68 (84.0) |
| Average maternal age, y (SD) | 29.5 (6.1) |
| Median gravity/parity (range) | 2/1 (G1P0–G9P8) |
| Median gestational age (SD) | 24 wk (6.2) |
| Interquartile range | 6.14 wk |
| Stage of pregnancy, n (%) | |
| Antepartum | 81 (22.6) |
| Immediate postpartum | 69 (19.3) |
| Postpartum | 126 (35.2) |
| Uncategorized | 82 (22.9) |
| Delivery type, n (%) | |
| Vaginal | 67 (18.7) |
| Cesarean | 158 (44.1) |
| Dilation and extraction | 5 (1.4) |
| Not reported | 128 (35.8) |
| Deliveries on extracorporeal membrane oxygenation, n (%) | 35 (9.8) |
| Extracorporeal life support indications, n (%)a | |
| Acute respiratory distress syndrome | 177 (49.4) |
| Cardiac failure | 67 (18.7) |
| Cardiac arrest | 57 (15.9) |
| Peripartum cardiomyopathy | 45 (12.6) |
| Pulmonary arterial hypertension | 28 (7.8) |
| Amniotic fluid embolism | 27 (7.5) |
| Pulmonary embolism | 17 (4.7) |
| Heart disease | 14 (3.9) |
| Septic shock | 11 (3.1) |
| Asthma | 7 (2.0) |
| Malignancy | 7 (2.0) |
| Takotsubo cardiomyopathy | 6 (1.7) |
| Pheochromocytoma | 5 (1.4) |
| Spontaneous coronary artery dissection | 3 (0.8) |
| Aspiration pneumonitis | 2 (0.6) |
| Trauma | 2 (0.6) |
| Distributive shock | 1 (0.3) |
| Propofol infusion syndrome | 1 (0.3) |
| Hemorrhagic shock | 1 (0.3) |
| Diffuse alveolar hemorrhage | 1 (0.3) |
| Pulmonary alveolar proteinosis | 1 (0.3) |
| Interstitial lung disease | 1 (0.3) |
| Sickle cell crisis | 1 (0.3) |
| Aortic dissection | 1 (0.3) |
| Transfusion related acute lung injury | 1 (0.3) |
| Cerebral venous thrombosis | 1 (0.3) |
| Pulmonary hemorrhage | 1 (0.3) |
| Cystic fibrosis | 1 (0.3) |
| Dengue fever | 1 (0.3) |
| Extracorporeal membrane oxygenation cannulation mode, n (%) | |
| Venoarterial | 145 (40.5) |
| Venovenous | 96 (26.8) |
| Both venoarterial and venovenous | 19 (5.3) |
| Not reported | 98 (27.4) |
| Maternal overall survival at 30 d, n (%) | 270 (75.4) |
| Antepartum | 65 (81.2) |
| Immediate postpartum | 58 (84.1) |
| Postpartum | 85 (67.5) |
| Timeframe unspecified | 62 (75.6) |
| Maternal overall survival at 1 y, n (%) | 266 (74.3) |
| Maternal complications, n (%)b | |
| Mild to moderate bleeding | 66 (18.4) |
| Severe bleeding requiring surgical intervention (laparotomy, hysterectomy) | 48 (13.4) |
| Intracranial neurologic morbidity | 19 (5.3) |
| Vascular complications (extremity ischemia, infection) | 14 (3.9) |
| Deep vein thrombosis | 10 (2.8) |
| Other (peripheral neuropathy, need for rehabilitation on discharge, hyperbilirubinemia, reperfusion injury, bradycardia with cannulation) | 22 (6.1) |
| Fetal survival, n (%) | 44 (64.7) |
| Fetal complications, n (%)b | |
| Preterm delivery | 33 (48.5) |
| Neonatal intensive care unit admission | 19 (27.9) |
a
Some cases had multiple indications for ECLS.
b
Some cases had multiple complications.