While there have been cases in which viable babies were born to brain-dead women on life support that long, they are few.
“There are only one or two [recorded] cases that have lasted as long as what you would hope for your Fort Worth patient,” Spike said Thursday. “One, two or three cases over 20 years. … Instead of saying boldly, ‘We’re going to do this,’ we should be saying, ‘We don’t know if it’s even possible.’
“I would say we won’t have any scientific evidence one way or the other,” Spike said. “In a situation like that, I would call it high risk, and it’s not the kind of decision a doctor should feel comfortable making for the family.”
In a survey of international medical literature from 1982 to 2010, the German researchers found 19 cases of brain-dead women who were put on life support for the purpose of sustaining the fetus. Twelve viable infants were born and survived the neonatal period, the study said.
“According to our findings, prolonged [life] support can lead to the delivery of a viable child,” the study said. “Such children can develop normally without any problems resulting from their intrauterine conditions.”
The authors added, however, that “the number of cases is too small to define the rate at which intensive care support of the brain-dead mother can result in a healthy infant.”
Much also depends on individual circumstances, including periods of oxygen deprivation, gestational age at the time of brain death, and the age of the mother, experts say. In the German study, only three women were sustained as long as would be necessary in Fort Worth. One woman was on life support for 71 days and two others for about 100. Apparently healthy infants were born to all three women.
http://www.star-telegram.com/2014/01/23/5509465/very-few-medical-precedents-in.html#storylink=cpy