Transient atrioventricular standstill. Etiology and management

Area of Science:

• Cardiology
• Electrophysiology

Background:

• Transient cardiac standstill is a rare but critical event.
• Understanding its diverse etiologies is essential for effective management.

Observation:

• Four patients experienced transient cardiac standstill (up to 22.5 seconds) with signs of cerebral ischemia.
• Resuscitation was required for all patients.

Findings:

• Etiologies identified included increased vagal tone, coronary artery disease, propranolol hydrochloride toxicity, and sick sinus syndrome.
• Management strategies varied based on the underlying cause, from no specific therapy to coronary artery bypass surgery and permanent pacemaker insertion.

Implications:

• Cardiac standstill can manifest in diverse clinical scenarios.
• Tailoring arrhythmia management to the specific etiology is paramount for successful outcomes.