@tesoro I have no idea, sorry. I am also sorry nobody else has chimed in. I would think that, if extremely urgent, and nothing to lose, they might try a surgical repair. However, if his heart is so weak, go greatly and devastatingly weak, that he can only exist in a coma..................................that's not good. No surgeon I know would attempt such a repair and attempt to charge you for it. I think it would be unethical because the chances of it succeeding are very slim. Razor thin.