Mad Honey on the ECG: Bradycardia, AV Block, and What Clinicians See
Grayanotoxin poisoning is, above all, a cardiac conduction problem. The compound holds cardiac voltage-gated sodium channels open, amplifies vagal tone, and disrupts the heart’s pacemaker and conduction system. The electrocardiogram, or ECG, is the single most informative bedside tool for assessing how severely the system has been affected, because it shows the conduction disturbance directly. […]
