Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Call emergency services for collapse, severe breathing difficulty, persistent severe chest pain, or signs of cardiac arrest.
Contact the cardiology team sooner than scheduled for new palpitations, chest discomfort, fainting, worsening shortness of breath, swelling, or reduced exercise tolerance.
Lifelong follow-up with a congenital heart disease specialist is essential after ALCAPA repair, even when a person feels well.
Monitoring can identify changes before symptoms develop.
Follow-up may include an examination, ECG, echocardiogram, exercise testing, rhythm monitoring, CT, or cardiac MRI.
The article also says
The schedule depends on the operation, heart function, mitral valve leakage, coronary anatomy, and rhythm history.
Patients and families should keep copies of the original anatomy records, operative report, and later imaging.
Adults treated during childhood should receive care through an adult congenital heart disease program rather than relying only on general cardiology care.
Anyone with repaired ALCAPA who is considering pregnancy should have a preconception assessment with an adult congenital cardiologist and a pregnancy team experienced in heart disease.
Every sign above is quoted from the sofidex article on Anomalous left coronary artery from the pulmonary artery. If you are not sure, err upward — it is always reasonable to be checked.