PMC9062970_01
Initial impedance check of vagus nerve stimulation device demonstrated proper function and the internal heart rate sensor showed a normal heart rate. Following routine irrigation of the wound with normal saline, there was a 5 s complete cardiac pause noted on heart rate monitoring. After this brief period of asystole, there was spontaneous recovery in heart rate with no further cardiac events through completion of the operation.
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F1
A few seconds into irrigation, the anesthesiologist promptly reported a cessation of the heart rate and informed the surgical team who subsequently stopped surgery [Figure 1].