There are multiple definitions:

1. office-based anesthesia(English)

   • refers to true risk in oral and maxillofacial surgery
   • Anesthesiology/analgesia, Dentistry, Surgery
   • https://doi.org…oms.2014.04.023

2. opioid based anesthesia(English)

   • OFA
   • Anesthesiology/analgesia, Pain
   • https://doi.org…ane.2023.111215