ROUNDS Anesthesiology

patients. 1 While estimates of the incidence of postanesthesia shivering vary greatly, it is reported that from 5% to 65% of patients experience shivering following surgery and anesthesia. Although the precise origin of postoperative shiver- ing remains uncertain, a number of hypotheses have been advanced. In addi- tion to being a significant source of discomfort for patients coming out of surgery, it can cause other adverse effects. This issue of Anesthesiology Rounds endeavours to explain postoperative shivering and discuss preventive strate- gies and treatments.