Current practice for primary headache disorders and perspectives on peripheral nerve blocks among emergency physicians in Canada: A national survey.

NSAIDs alone, as well as dopamine receptor antagonists with or without ketorolac are commonly used for primary headache in Canadian emergency departments. A large proportion of physicians have never used a peripheral nerve block in their practice; among those who have experience with peripheral nerve blocks, the majority find them safe and effective. The majority of respondents would consider peripheral nerve blocks as a first-line treatment option given sufficient evidence from a future trial.