Importance Recent reports have suggested that cerebral amyloid angiopathy, a common
cause of multiple spontaneous intracerebral hemorrhages (ICHs), may be transmissible
through parenteral injection of contaminated cadaveric pituitary hormone in humans.
Objective To determine whether spontaneous ICH in blood donors after blood donation is
associated with development of spontaneous ICH in transfusion recipients. Design, Setting,
and Participants Exploratory retrospective cohort study using nationwide blood bank and …