Factors Affecting Survival and Morbidities in Babies Born between 22 and 28 Weeks

The gestational age boundary termed viability has shifted dramatically during the past 50 years, and more so in the last 15 years. In 1971, a widely used neonatology textbook stated that, “The lower limit of viability is probably around 28 weeks, at which time most infants weigh two pounds, four ounces (1000 g).” Today, the most immature infants routinely cared for by neonatologists in some parts of the world are born at 22 weeks of gestation, with many weighing around 500 grams. While most studies reporting on neonatal resuscitation at 22 weeks give a main outcome as “alive at discharge”, there are other potential long-term morbid conditions which cannot be ignored. The ability to perform neonatal resuscitation at 22 weeks and 0 days has led to many powerful ethical debates and published commentaries. In this episode we will take a look at the complexities of neonatal resuscitation at 22 weeks focusing on the potential long morbidity after hospital discharge.