From: Amniotic fluid embolism: an Australian-New Zealand population-based study
 |  | Number of women experiencing feature (%) |
---|---|---|
Location of onset | Home | 2 (6Â %) |
 | Theatre | 15 (46 %) |
 | Birth Suite | 15 (46 %) |
 | Not recorded | 1 (3 %) |
Time point at onset of collapse | Pre-labour | 5 (15Â %) |
 | First stage of labour | 4 (12 %) |
 | Second stage of labour | 4 (12 %) |
 | Post partum | 17 (52 %) |
 | Unknown/Not recorded | 3 (9 %) |
Initial presenting feature | Premonitory symptoms | 9 (27Â %) |
 | Hypotension | 7 (21 %) |
 | Shortness of breath | 5 (15 %) |
 | Acute fetal compromise | 5 (15 %) |
 | Maternal haemorrhage | 3 (9 %) |
 | Coagulopathy | 3 (9 %) |
 | Cardiac arrest | 2 (6 %) |
 | Abnormal cardiac rhythm | 2 (6 %) |
 | Seizure(s) | 1 (3 %) |
Associated features | Maternal haemorrhage | 26 (79Â %) |
 | Hypotension | 25 (76 %) |
 | Coagulopathy | 24 (73 %) |
 | Premonitory symptoms | 14 (42 %) |
 | Cardiac arrest | 13 (39 %) |
 | Shortness of breath | 12 (36 %) |
 | Acute fetal compromise | 9 (27 %) |
 | Abnormal cardiac rhythm | 8 (24 %) |
 | Seizure(s) | 3 (9 %) |