...He's still worse off than anyone else looked when she left. Not, specifically, in ways that are going to kill him that much faster? The worst element is the life-force drain and he's...not, actually, leaking faster than the others were. His brain looks okay. Structurally, at least, she's not a Mindhealer and she has no idea if there are subtler problems that will affect his mental functioning.
There's definitely a lot of other damage they didn't get, damage that has more in common with what was wrong with Randi than with an injury. Some kind of inflammatory nerve damage in particular, she's sure some of that was happening with the others but...Leareth got most of the way to dead, he really should be dead, and it's a lot more advanced, and apparently a Cure doesn't fix it. He's going to have a lot of trouble moving his limbs on purpose even once he's awake and not paralyzed. (And they should not arrange for this to happen in that order! It's very important that it should be the other order!)
...Also his lungs are surprisingly problematic! Shavri had really thought most of the problem was them having spent more than thirty minutes pounding on his chest as hard as possible, on top of whatever direct injury the attack inflicted, but...there is definitely a non-injury problem in there.
(Shavri is thinking out loud to Samora and Marian and Dr Chadra and honestly anyone else who seems like they might hold still for it. She's having a lot of thoughts very fast and they don't want to stay trapped in her head.)
....It looks like an infection, actually, ohhhhhh, that makes perfect sense, Leareth was alone and slowly losing consciousness and also suffering from a problem that they know caused severe nausea for everyone else, yeah it's not surprising at all that he got a bunch of vomit in his lungs. The Cure fixed all the direct tissue damage but it doesn't get diseases, and that's a surprisingly severe pneumonia for it having been less than two hours, but there was a whole period when his body's defenses were totally down. The lungs have various active processes for getting rid of things that should not be in them and they weren't doing any of that for a while.
They have a Remove Disease but that's a particularly expensive spell and she'd love to hear other ideas.