Condition | Functional status | Lay explanation | Restriction/guidance |
Cyanotic congenital heart disease | NYHA I&II | You have congenital heart disease with blue blood and get breathless on mild to moderate exertion but no recent (within 6 weeks) change of symptoms or medication | May require in-flight oxygen* |
NYHA III | You have congentil heart disease with blue blood and get breathless on walking 20-100 yards/metres but no recent (within 6 weeks) change of symptoms or medication | Consider airport assistance and may require in flight oxygen advisable* | |
NYHA IV | You have conginital heart disease with blue blood and get breathless at rest and mainly bedbound but no recent (within 6 weeks) change of symptoms or medication | Advised not to fly without in flight oxygen and airport assistance available* |
Note that these are only guidelines and each airline has its own regulations and medical standards.
* = consider at high risk of DVT/VTE (Deep vein thrombosis/Venous thromboemolism)
Reference:
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