Participants
hypermagnesemia, myocardial infarction
HYPOTHYROIDISM, HYPERMAGNESEMIA, MYOCARDIAL INFARCTION
The study was conducted in the Department of Anaesthesiology of the Third Hospital of Hebei Medical University. From August 2021 to December 2022, adult patients (> 18 years) undergoing OLT under general anaesthesia were recruited. We excluded patients who had ASA scores of 5, patients who needed preoperative renal replacement therapy (RRT), patients who had a history of myocardial infarction within 6 months, patients who had hypermagnesemia or hypothyroidism, and patients who refused to participate in clinical trials or participate in other clinical studies within 3 months.