I wrote an earlier blog about BPPV without nystagmus, called “Symptomatic BPPV.” The blog was about how I resolved complaints of vertigo in my patients who have symptoms of BPPV but no nystagmus, or no corresponding eye movements.
This blog provides you with an update on this important concept.
So if I assessed a patient for vertigo without any visible eye movements, or nystagmus, in the test positions, I was lead to believe that it must be something else besides BPPV. I saw a fair number of patients like this and I was not sure what to do at that time.
In September 2010, I attended the first offering of the Advanced Vestibular Rehab course offered by APTA. I asked one of the instructors how to treat people who have vertigo in the test position for BPPV but no nystagmus.
Since then, I have had debates with a few colleagues who insist that the presence of nystagmus is necessary to assess for BPPV, but nonetheless I have gone on successfully treating and resolving complaints for many BPPV patients who had symptoms but no nystagmus.
Even though I knew my treatments were working, this topic was a source of disagreement with colleagues who were indoctrinated into the idea that nystagmus is the gold standard for diagnosing and treating BPPV.
In August of 2018, I attended the first ever International Conference for Vestibular Rehabilitation offered by the APTA and I was pleased that one of the international researchers started his talk by saying, “BPPV in the posterior canal often occurs without nystagmus due to the anatomy.”
I could hear an audible gasp in the room from many of my colleagues!
And my immediate reaction was a fist pump exclaiming, “Yes! Thank you!”
So I write this blog to share that my observations about symptomatic BPPV have now been confirmed in research findings, especially with regards to the posterior canal.
There are two take-home points from this blog.
First: If you are a patient who has symptoms consistent with BPPV but your healthcare provider did not treat you for BPPV because he or she didn’t see nystagmus, then I recommend for you to consult another provider who is aware of symptomatic BPPV and will provide proper treatments.
Second: Research often lags behind the clinical practice findings and techniques used by expert clinicians. Often, clinicians notice patterns and then researchers go about proving it by collecting data systematically over time. The research process takes years, sometimes even decades.
It is important for all clinicians to be familiar with research findings. But if you are a healthcare provider, don’t let the body of research limit what you are willing to try to help your patients!
This blog is provided for informational purposes only. The content and any comments by Dr. Kim Bell, DPT are not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. The details of any case mentioned in this post represent a typical patient that Dr. Bell might see and do not describe the circumstances of a specific individual.