This is a great review paper by Jon Skinner in New Zealand. He divides SIDS into 4 groups.
- Patients who had had SIDS completely unrelated to any genetic channelopathy. This is by far the most common group
- Patients who have genetic polymorphisms in SCN5A, that confers some predisposition
- Patients who actually have long QT syndrome
- Patients who have the most server forms of channelopathy, often dying in utero or soon after birth from ventricular fibrillation
