If we’re talking about “general anesthesia”, I would hope that it wouldn’t work. The brain kind of “disconnects” under this sedation, so I would think there wouldn’t be anything to communicate with.

Might be an interesting storyline about the dangers of melding with an anesthetized person being dangerous — allowing for the melder to take over higher brain functions, or inadvertently connect to “monkey brain” dragging them down with it.

Of course it’s the future, so who knows what anesthesia/sedatives work like in that century.