case_images: PMC9869194_01
case_images: The preoperative 12-lead electrocardiogram (ECG) showed sinus rhythm with a rate of 60 bpm and abnormal ST-T segment. There was a slight ST-segment depression in leads V1, V2, and V3.
case_images: 10.1177_03000605221148618-fig1.jpg
case_images: PMC9869194_01_10.1177_03000605221148618-fig1.jpg
case_images: fig1-03000605221148618
case_images: The preoperative electrocardiogram (ECG) showed sinus rhythm with an HR of 60 bpm and abnormal ST-T segment (Figure 1).
case_images: The results of Holter electrocardiogram (ECG) showed that asystole lasted 17 s.
case_images: 10.1177_03000605221148618-fig2.jpg
case_images: PMC9869194_01_10.1177_03000605221148618-fig2.jpg
case_images: fig2-03000605221148618
case_images: Holter ECG showed that asystole lasted 17 s (Figure 2). HRV data analyzed by the Ambulatory ECG System (Shenzhen Biomedical Instruments) were obtained at five timepoints: before anesthesia induction (T1), after tracheal intubation (T2), during foramen ovale puncture (T3), after atropine was administered intravenously (T4), and during ganglion compression (T5) (Table 1).