Two young healthy non-asthmatic non-smoking patients developed partial laryngospasm directly post-anaesthesia extubation after routine varicocelectomy and perianal abscess drainage operations under general anaesthesia. Nitroglycerin was administered intravenously in a dose of 4 microg/kg for both cases. The laryngospasm was completely relieved within a minute of nitroglycerin administration in both cases and the relief was maintained thereafter. The two cases suggest that nitroglycerin can be effective in the treatment of post-extubation partial laryngospasm in ASA (class I) patients.
The report describes a new double lumen tube adaptor which provides selective one lung ventilation without external clamping. It also facilitates, without disconnexion and remantling, both correct bronchial cuff inflat ion and continuous positive airway pressure administration using an underwater seal chest bottle. Oxygenation can be kept optimal during one lung anaesthesia by applying 1.0 kPa continuous positive airway pressure to the nonventilated lung using an oxygen flow of 1-2 litres/minute.
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