There are multiple definitions:

1. adverse patient occurrence(English)

2. adverse pregnancy outcome(English)

   • HDP, HAPO
   • Pregnancy, Adverse effect, Quality and outcomes
   • https://doi.org…acc.2022.02.013
   • https://doi.org…000000000001209

3. acute pulmonary oedema(English)

   • is the second most common clinical presentation of AHF (14–38%), though its reported prevalence and in-hospital mortality may vary considerably by geographic region. Also as APE
   • APE, ADHF, AHF, ARF, ARHF, CHAMPIT, CS, ID, NCC, RV
   • Cardiology, Pathology
   • https://doi.org…-031-96562-3_23