A card would be wonderful.. They still HAD A BABY!! and this deserves to be acknowledged.. If you would normally have got them a gift, still get them 1 now.. Just maybe a blanket instead of clothes.. Babies at 27wks have a good chance of survival, but if something does go wrong, the parents will treasure and cards and gifts received.. The baby maybe breathing on his own most likely with CPAP (Continuous positive airway pressure I think it stands for)