Recurrent vasovagal syncope following successful cardioneuroablation

Figures

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  Figure 1. Preprocedural syncopal event. The patient’s implantable loop recorder recorded gradual sinus slowing followed by sinus arrest with asystole, causing syncope.

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  Figure 2. Ventricular rate and heart rate variability (HRV). The patient’s implantable loop recorder (ILR) recorded an abrupt increase in her average ventricular rate and an abrupt decrease in her HRV upon cardioneuroablation. In the months following, the patient’s ILR recorded a gradual regression to preprocedural values in both average ventricular rate and HRV, culminating in her recurrent syncopal event over 7 months later.

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  Figure 3. Recurrent syncopal event. The patient’s implantable loop recorder recorded gradual sinus slowing leading to junctional beats, followed by 7 seconds of sinus arrest with asystole, causing syncope.