If there is bleeding involved working to revive the fish is the wrong thing to be doing! The blood of fish will clot fairly quickly but for the that to occur the heart rate has to slow down.

Think about it - seems unlikel that a fish heart beat will slow while we are working with it. The fish has no idea what we are up to. For those fish there best chance is to cut the leader as quickly as possible without attempting to remove the hook. Attempting to remove the hook will likely increase the size of the wound. Once the leader is cut release the fish quickly and if possible in quiet water (under a log/rock) so that the fish has a chance to calm down. If it has to contonue to work hard it will bleed out very quickly.

A side note - if you find that upon releasing a fish it needs reviving your fishing playing skills are unnecessarily stressing the fish.

Tight lines
Smalma