Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a type of 
cardiac arrhythmia that occurs in people with a structurally normal heart. 
Stress or anxiety-induced release of endogenous catecholamines causes a 
dysfunction in the myocytic calcium-ion channel, leading to ventricular 
arrhythmias that can cause dizziness, syncope, or sudden cardiac death. Since 
dental procedures can be anxiety-provoking, the main purpose of this paper is to 
report the dental management of a young patient with dental fear and CPVT. 
Several other issues are also discussed, such as the importance of continual 
collaboration with medical colleagues, the risk-benefit of using 
epinephrine-containing local anesthesia for dental treatment for patients with 
arrythmias, the potential risk of repeated general anesthesia in a patient with 
a cardiac arrhythmia, and the challenges of providing comprehensive dental 
treatment in a high caries-risk patient with extreme dental anxiety.