Within 30 minutes before anesthesia, acupoint electrical stimulation at different frequencies were applied at Neiguan, Jian Shi, and Baihui. The changes in blood pressure during the anesthesia induction period were compared between the high-frequency group and the low-frequency group.
The age of the patients is 60 years or older;
Patients who are scheduled to undergo TAVR surgery under general anesthesia;
Body mass index less than 18 kg/m2 or greater than 30 kg/m2;
Hemodynamic instability (severe arrhythmia, decompensated heart failure);
Hypotension after admission requiring intervention with vasoactive drugs;
Severe liver or kidney dysfunction;
Air Force Military Medical University, China
Lead sponsor