Sinus pauses may at time be seen in athletes with high vagal tones. Sinus node dysfunction can lead to pauses or tachyarrhythmia. The condition usually progresses slowly with no complications for sustained periods, but will eventually become problematic, requiring a pacemaker.
Asymptomatic applicants found to have sinoatrial dysfunction at routine ECG can often be certificated following investigations, with ongoing surveillance.
On the first occasion that an applicant present with an abnormal ECG suggesting sinoatrial disease:
On subsequent occasions that an applicant present with an abnormal ECG suggesting sinoatrial disease:
A certificate is likely to be issued if the applicant is asymptomatic, there are no pauses longer than 2.5 sec, no complex or sustained rhythm disturbance, and no other unacceptable characteristic have been identified.