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Sinus node arrest and sino--atrial block.

D B Shaw, D P Southall

    European Heart Journal
    |March 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Sinus node dysfunction, causing pauses in heart rhythm, is rare in pilots. Symptomatic pauses disqualify pilots, while asymptomatic pauses require investigation to determine flying status eligibility.

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    Area of Science:

    • Aviation Medicine
    • Cardiology
    • Electrophysiology

    Background:

    • Sinus node dysfunction (SND) is a cardiac condition affecting heart rhythm.
    • Epidemiological data indicates SND is uncommon in the pilot population.

    Purpose of the Study:

    • To evaluate the implications of sinus node dysfunction and pauses on pilot flying duties.
    • To define criteria for disqualification and further investigation in aviators.

    Main Methods:

    • Review of current epidemiological data on sinus node dysfunction in pilots.
    • Analysis of ambulatory ECG findings, specifically pause durations.

    Main Results:

    • Symptomatic pauses, regardless of mechanism, lead to disqualification from flying.

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  • Asymptomatic pauses necessitate further investigation and ongoing monitoring.
  • Idiopathic pauses exceeding 2.5 seconds on ambulatory ECG are considered abnormal and likely result in denial of flying status.

    • Conclusions:

    • Sinus node dysfunction requires careful evaluation in pilots.
    • Specific pause characteristics on ECG correlate with flying status.
    • Clear guidelines are needed for managing aviators with cardiac rhythm abnormalities.