Patients with chronic dizziness are often diagnosed with a functional dizziness syndrome such as PPPD, previously known as Phobic Postural Vertigo (PVD).
Persistent Postural-Perceptual Dizziness (PPPD)
PPPD is based on a condition called phobic postural vertigo (PPV) first described in the 1980’s by Brandt and Dieterich, two eminent German neurologists.
The primary symptoms of PPPD are persistent sensations of rocking or swaying, unsteadiness and/or dizziness without vertigo lasting for three months or more. Factors that may provoke PPPD symptoms include sudden movements, being upright and exposure to certain stimuli. Once recognised, PPPD may be managed.
Unfortunately, the term PPPD has become quite popular and patients with PPPD are often referred for Vestibular Rehabilitation to ameliorate their symptoms.
Professor Margie Sharpe says, “Many therapists are trying to fit square pegs in round holes and it’s really not in the best interests of patient care”.
Moreover, the findings by Popp et al., 2018 showed the constellation of symptoms of PPPD (PVD) patients were NOT due to aberrant processing in the cortical visual, visual motion or vestibular regions.
Following is a link to an excellent paper which Prof Margie Sharpe has recommended for reading.
Cortical alterations in phobic postural vertigo – a multimodal imaging approach
Popp – 2018
Annals of Clinical and Translational Neurology
Wiley Online Library
Objective: Functional dizziness syndromes are among the most common diagnoses made in patients with chronic dizziness, but their underlying neural characteristics are largely unknown. The aim of this neuroimaging study was to analyze the disease-specific brain changes in patients with phobic postural vertigo (PPV).
Interpretation: Our findings agree with some of the typical characteristics of functional dizziness syndromes, for example, excessive self-awareness, anxious appraisal, and obsessive controlling of posture. This first evidence indicates that the disease-specific mechanisms underlying PPV are related to networks involved in mood regulation, fear gen-
eralization, interoception, and cognitive control. They do not seem to be the result of aberrant processing in cortical visual, visual motion, or vestibular regions.
If you are worried about any symptoms of dizziness please contact the Centre.
Prof. Rask-Andersen is a specialist in ENT & Audiology, an anatomist, and electron microscopist, and he is a senior Professor in experimental Otology at the Uppsala University and the Academic Hospital in Uppsala, Sweden. He currently runs the Research Department at the Academic Hospital.
In this article, Prof. Rask-Andersen explains the intricate functions of the cochlea and why structure preservation should be a priority for every cochlear implant surgery—even if there is no residual hearing. He shows why damage to the delicate cochlear structures can have such an adverse effect on the health of the underlying neural structures, and the impact this can have on outcomes with a cochlear implant.
“Concussion is confusing us all”
“It is time to stop using the term concussion as it has no clear definition and no pathological meaning.”
Read the full paper online: https://www.researchgate.net/publication/276357090_Concussion_is_confusing_us_all
You are invited to participate in a research study being conducted by Dr. Cherylea Browne, Lecturer in Human Anatomy, School of Science & Health and Ms. Viviana Mucci, Doctoral Student, Antwerp University Research Centre for Equilibrium and Aerospace (AUREA) & Laboratory of BioMedical Physics (BIMEF), University of Antwerp.
This research aims to contribute to the understanding of the underlying mechanisms of Mal de Debarquement Syndrome (MdDS). Specifically, this study seeks to collate data regarding the effects of pregnancy on MdDS symptoms.
The study aims to collect survey data from MdDS patients who are currently pregnant or who were pregnant whilst having MdDS, so please tag or share with anyone who might be interested in taking part in their research.
Click here to complete the survey – uwsssap.co1.qualtrics.com/jfe/form/SV_cu811naTKs6CHd3
For any inquiries or more information, please contact Josephine (firstname.lastname@example.org) or Cherylea Browne (email@example.com) via email.
MdDS Research Group Facebook Page: facebook.com/MdDSResearchGroup/
Article on Whirled Foundation: whirledfoundation.org/mal-de-ebarquement-syndrome-mdds-research/
Quote: “Dr Cherylea Browne from the MdDS Research Group at Western Sydney University became interested in MdDS after her own diagnosis of the condition and is now conducting research into the clinical features of MdDS. Her interests include the underlying hormonal aspects of MdDS and autonomic nervous system maladaptation in MdDS patients. The MdDS Research Group, though early in its formation, has generated interest from around the world, with collaborators contributing to research studies from Mt Sinai Hospital in New York, Prince of Wales Hospital in Sydney and Antwerp University Hospital in Belgium.”