Once a patient with Vertigo and Dizziness came to the emergency department, emergency physicians ask if they were willing to accept acupuncture intervention in addition to the routine western medical care.

Once a patient with Vertigo and Dizziness came to the emergency department, emergency physicians ask if they were willing to accept acupuncture intervention in addition to the routine western medical care.

The primary outcome in this study was the difference of Visual Analogue Scale (VAS) before and after intervention, aiming to assess if patient's condition got better after acupuncture.

VAS is one of the pain rating scales, with the minimum value 0 and the maximum value 10, used for the first time in 1921 by Hayes and Patterson. From the patient's perspective, this spectrum appears continuous; their pain does not take discrete jumps, as a categorization of none, mild, moderate and severe would suggest. It was to capture this idea of an underlying continuum that the VAS was devised.