Table 1.
Features of awareness during emergence
| Features | |
| Incidence | About 20% of all awareness with recall episodes[7] |
| Clinical features | Distress especially due to sense of paralysis |
| Causes and mechanisms | Inappropriate anesthesiological management: |
| 1 Anesthesia plan is lightened too early | |
| 2 Lack of use, or misuse, of neuromuscular monitoring | |
| 3 Awake extubation | |
| Butyrylcholinesterase deficiency (in case of succinylcholine and mivacurium use) | |
| Human error (e.g., dose calculation) or devices malfunctioning | |
| Predisposing factors | Resistance to anesthetics genetically determined |
| Drug induction by alcohol, tobacco or centrally acting drugs | |
| Assessment | When awareness is suspected at the emergence, patients should be assessed before the postanesthesia care unit discharge, after 1-3 d, and after 7-14 d using a structured interview |
| Psychological sequelae | Frequent and of variable entity depending on the distress, duration, and type of event |
| Management | Multidisciplinary approach and specialized interventions by properly trained personnel (psychiatrist / psychologist). It is mandatory to accept the patient's report as truthful, to characterize it and to carry out a root case analysis with all the medical personnel, and not, involved in the operating theatre |