At 4:00 am, a 71-year-old man turned over in bed onto his left side and experienced a sudden onset of dizziness, described as if the bed was moving. Although lasting only 10-15 seconds, he became sweaty afterwards without nausea or vomiting. He came to the emergency department an hour later. The intense vertigo resolved if he stayed still, but simi...

Clinical diagnosis of benign paroxysmal positional vertigo and vestibular neuritis

10.1503/cmaj.190334