Does gene expression analysis of glioblastomas identify the major molecular basis for the prognostic benefit of younger age?
The survival benefit of younger age is nullified when patients are stratified by gene expression group. Thus, the main cause of the age effect in GBMs is the more frequent occurrence of PN GBMs in younger patients relative to older patients.
Airway exchange catheters represent a useful additional tool for short-term advanced airway management for both oxygenation and ventilation in neonates and infants presenting with severe laryngotracheal stenosis.