Hello, someone was "cut in half" and survived?

Hello! I came across two graphic videos, and I do warn, they are graphic, in this first one, (http://www.bestgore.com/road-accidents/man-cut-in-half-still-alive/) a man in Somalia is cut in half in an accident at the level of the waste as initially still conscious and is bleeding to death on the road. In another... show more Hello!
I came across two graphic videos, and I do warn, they are graphic, in this first one, (http://www.bestgore.com/road-accidents/man-cut-in-half-still-alive/) a man in Somalia is cut in half in an accident at the level of the waste as initially still conscious and is bleeding to death on the road. In another case (http://www.bestgore.com/road-accidents/vietnam-police-officer-cut-in-half-after-bad-accident-extremely-graphic-video/) He is rushed to hospital but dies during transport. If you go to my second link and bellow the police officer case, you see a gentlemen who actually survived such an injury, although I am surprised they did not attempt to re-attach the lower half of his body.
Question:
In any traumatic amputation, vessels will go into spasm and slow down the bleeding. Can you, at the scene, clamp the aorta and other major vessels at least long enough to get this guy to the hospital and try to re-attach the two half of the body? Even if the patient arrests on route, you can open this persons chest and clamp the aorta and try open chest cardiac massage while administering blood transfusions? If someone is bleeding to death from an injury like this, is there a chance you can save them?
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