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Anaesthesia. 1977 Apr;32(4):367-70.

The value of topical lignocaine for bronchoscopy under general anaesthesia.


Patients for bronchoscopy were randomly allocated to two groups, one receiving 4 ml 4% lignocaine spray and a control group which was not sprayed. There were no significant differences in the incidence of cough and spasm on recovery between the groups. The findings of a double-blind study comparing patients sprayed with 0-9% saline or lignocaine showed a significantly higher incidence of spasm in the saline group.

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