total hip replacement術翌日移動時に生じた患者が失神した…
さて何が起こったのでしょうか？

In November, 2008, an arrest call was made for a 69-year-old woman after a syncopal episode in a rural hospital. The patient had had an elective right total hip replacement a day earlier. The syncope occurred when she mobilised with a physiotherapist. She regained full consciousness within seconds, but her blood pressure was unrecordable. She denied chest pain or discomfort, palpitation, dizziness, or dyspnoea. She had a history of treated hypercholesterolaemia. Physical examination was unremarkable.