• M Maroof, R M Khan, B G Ryley, N Bari, and T Cooper.
• Department of Anaesthesiology and Intensive Care, King Fahad National Guard Hospital, Riyadh, Saudi Arabia.
• J Pak Med Assoc. 1994 Oct 1;44(10):244-7.

AbstractTwelve cases of post-anaesthetic pulmonary oedema (PO) secondary to upper airway obstruction (UAO) are reported. All were adult male patients undergoing uneventful elective surgical procedure under general anaesthesia. Post-anaesthetic laryngospasm was the single most important factor for the upper airway obstruction (UAO) in 5 (41.6%) patients. PO secondary to partial UAO in drowsy patients was observed in 4 (33.3%) patients. UAO due to foreign body was responsible for PO in two patients. A combination of negative intrathoracic pressure, hypoxia and associated hyperadrenergic state were the most likely causes of PO in these patients with UAO. Early recognition, maintenance of patent airway and adequate oxygenation via face mask or endotracheal tube with mechanical ventilation resolved the syndrome within 6-36 hours in all of these patients. Invasive haemodynamic monitoring or aggressive drug therapy were not applied in any of the patients. A heightened awareness among anaesthesiologists of the varied causes of post-anaesthetic UAO leading to PO may help reduce the occurrence and facilitate early management of the potential complications.

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