At the moment, there are no known measures that can be taken in order to prevent the onset of the disorder. The Genetic Testing Registry is a resource for patients with PWS as it provides information on genetic tests that could be done to see if the patient has the necessary mutations. If PWS is sporadic or does not have RASA1 mutation, then genetic testing will not work and there is not a way to prevent the onset of PWS.
Parkes Weber syndrome
Neu–Laxova syndrome
Stratton Parker syndrome
Madras motor neuron disease
Temple–Baraitser syndrome
Dejerine–Sottas disease
De Barsy syndrome
Shapiro syndrome