Atrial fibrillation or flutter that occurs (1) in Holiday heart syndrome, see there (2) As a startle response to loud noises—e.g., firecrackers on July 4th, the US day of Independence
holiday heart
A Fib or flutter that follows 1. Binge alcohol abuse or.2. loud noises–eg, firecrackers on July 4th, the US day of Independence.