The premature babies of less than 26 weeks are very occasional and his prognosis is very uncertain since for his weight, 1 Kg minor, and his immaturity is exposed to all the cardiac, pulmonary problems, etc... as to be able to survive, and in case of doing his aftermath they are enough. In spite of it the survival can reach 75 % of the cases.
From 28 weeks and a weight, on having been born of more than 1,5 Kg, one can be known for statistics that they will survive in 80 % of the cases, with his immaturity complications. They will need respiratory assistance, factor surfactante, and before the absence of reflex of sucking and intestinal problems also they will need feeding endovenosa. As his absence of age it has few wakefulness periods and they are almost the whole day slept and with little movement. From 29 weeks the survival already reaches 85 %.
The aftermath can reach one of the three born before 29 weeks, being this major in those of less weeks of gestation.
If the prematurity is of more than 30 weeks we are in babies of almost 2 Kg in weight, they are bigger and the survival already reaches 95 % in those of more age. In these cases they usually breathe for themselves, with oxygen as supplement and feeding route cannula enteral (for the mouth to the stomach straight), or in some cases it can take breast straight. The complications are already less and of minor gravity and the aftermath only affects 15 % of the cases.
The babies of more than 35 weeks already weigh more than 2,5 Kg and they are more developed approaching in problems and prognosis of life the born to term. Being his morphology typical of premature babies, his thin and wrinkled skin and his biggest head of normally. They can have some problem of respiration or of sucking but a few days and of almost absent aftermath.
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