• Carotid Sinus Hypersensitivity
• Advanced Atrioventricular Block
• Ventricular Fibrillation
• Vasodepressor Syncope
• Sinus Node Dysfunction / Sick Sinus Syndrome
• Sinus Bradycardia From Timolol Eyedrops

Carotid sinus massage only resulted in a moderate (not profound) drop in heart rate.

No mechanism could have induced this in the park.

There is no history indicating Carotid Sinus Hypersensitivity.