To the Editor.—
H. J. Roberts, MD, described complications of persons performing cardiopulmonary resuscitation (CPR) (1981;246:1302). They included muscle sprains of the low back and neck, infections from handling improperly cleaned mannikins, and temporomandibular arthropathy.I would like to report a common, harmless complication of CPR. Probably 10% to 50% of people performing this procedure experience purpura of the lips. At times this complication is severe enough to cause lip bleeding. However, it usually resolves in two to five days. No therapy is necessary for it.