EARLY POSTOPERATIVE HYPOXIA DURING TRANSPORT

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Abstract
The incidence of immediate postoperative hypoxaemia following general anaesthesia was studied using a pulse oximeter in 120 ASA category I and II patients during transport to the recovery room. Thirty-two percent of those not given oxygen during transport developed desaturation (SaO2 less than 90%) in spite of receiving 100% oxygen for 5 min before transport. In 14.3% of patients SaO2 decreased to less than 85%. None of the patients given oxygen 2 litre min−1 via a nasopharyngeal catheter during transport exhibited an SaO2 less than 90%. The only variable which correlated with the development of desaturation was the duration of anaesthesia.