Author response: Questionnaire-based diagnosis of benign paroxysmal positional vertigo

We thank Dr. Lanska for the interest in our article¹ that introduced a questionnaire comprising 6 questions to diagnose benign paroxysmal positional vertigo (BPPV) and its subtypes. Dr. Lanska instead proposed a rather simple 4-question approach. This proposition is based on the assumption that BPPV preferentially involves the posterior semicircular canal (PC-BPPV). Indeed, the posterior semicircular canal is more commonly involved (60%–90%) than other canals in BPPV.² The proportion of BPPV involving the horizontal canal (HC-BPPV), however, should not be underestimated. According to the prior studies, HC-BPPV comprises 20%–35% of idiopathic BPPV.^3,4 Given the similar proportion of HC-BPPV among the centers in South Korea³ and a lower incidence of HC-BPPV in patients with a lesser interval from symptom onset to diagnosis,⁵ this seemingly higher proportion of HC-BPPV in our studies may not be ascribed to a referral-bias, and the proportion of HC-BPPV seems higher than is believed in the real world.

from Neurology recent issues https://ift.tt/3kgLCQW

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Menopause Symptoms Reduced by Cold Water Swimming

Cold water swimming significantly eases menopausal symptoms. Surveying 1114 women, with 785 experiencing menopause, researchers found improvements in anxiety, mood swings, low mood, and hot flushes among participants. from Neuroscience News https://ift.tt/9AqHsEa

UPI: Kids with psych disorders most likely to take dangerous viral challenges

The “choking game” — and other clearly ill-advised and dangerous internet challenges — leave many parents wondering what drives teens to take the bait and participate. Now, a new study suggests that an underlying psychological disorder may be one reason why some kids jump at online dares such as the “Bird Box” challenge, where people walk around blindfolded, and the Tide Pod challenge, daring people to eat laundry detergent. (January 28, 2019) Read the full article here from Brain Health Daily http://bit.ly/2DIWHbD

The emerging influential role of microglia in neurology

In her most catchily titled book, The Angel and the Assassin , Donna Jackson Nakazawa highlighed nerve cells which have hitherto been very little acknowledged – microglia . Long ignored as bit players in the big league of the nervous system, Nakazawa colourfully illustrated what many neuroscientists are beginning to realise: the small size of microglia belies their huge influence ; m icroglia are, after all, the defence force of the nervous system, protecting the brain from microbial invaders . In keeping with their small size, their role is to surreptitiously present the antigens of invading bugs to T cells , the toffs who actually carry out the final hatchet job . It is therefore not surprising that any dysfunction of microglia will come with significant clinical consequences . By GerryShaw – Own work , CC BY-SA 3.0 , Link The most important clinical fallout of dysfunctional microglia appears to be the emergence of dementia. It is indeed spec...

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