Background: The purpose of this audit was the evaluation of recovery and di
scharge times and the identification of perioperative events related to ana
esthetics with intravenous ketamine and midazolam.
Methods: In our institution, we use this method as a routine technique for
short ambulatory emergency or elective procedures. Two hundred children, ag
ed 1-16 years, were included. Ninety percent of the study patients underwen
t emergency procedures.
Results: Most perioperative events were minor and easily corrected. Intraop
eratively, most events were related to respiration, including oxygen desatu
ration, apnoea or laryngospasm. Vomiting, vertigo, visual disturbances, nig
htmares and hallucinations were observed in the postoperative period. Serio
us complications requiring hospital admission or further interventions in t
he postoperative period were rare. Mean recovery time was 100 min (range 20
-325) and mean discharge time 130 min (range 25-360).
Conclusions: Intravenous ketamine plus midazolam is a suitable, simple and
fast anaesthetic technique for short, painful ambulatory procedures. Consid
ering the possibility of potentially serious respiratory complications, it
should be performed only by qualified anaesthesia staff who are trained in
advanced airway management.