The preformed tip of the Coopdech bronchial blocker can be damaged at the Murphy's eye of the endotracheal tube or at the carina. This can result in tip fracture, especially during insertion into the right main bronchus. Maneuvering the tip away from the Murphy's eye can circumvent this problem. Continuous bronchoscopic guidance should be used as recommended by the manufacturer.

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The inhalation of a nitrous oxide/oxygen mixture significantly reduces the incidence of pain during propofol injection. This therapeutic stratagem was as effective as a lidocaine-propofol mixture.