Balloon angioplasty for cerebral vasospasm in preschool children.

Background: Subarachnoid hemorrhage evolving with cerebral vasospasm and delayed cerebral ischemia may increase morbidity and mortality. Treating vasospasm with balloon percutaneous angioplasty (PTA) in adults is well known, but data in preschool children are scarce. In addition, the smaller diameters and fragility of the vessels in childhood might lead to serious complications.