otoconia

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Related to otoconia: Epley maneuver

statoconia

[stat″o-ko´ne-ah] (pl. of statoco´nium)

minute calcareous particles in the gelatinous membrane surmounting the macula in the inner ear; called also otoconia, otoliths, and statoliths.

o·to·liths

, otolites (ō'tō-līths, ō'tō-līt-is), [TA]

Crystalline particles of calcium carbonate and a protein adhering to the gelatinous membrane of the maculae of the utricle and saccule.

Synonym(s): statoconia [TA], statoconium [TA], ear crystals, otoconia, statoliths

[oto- + G. lithos, stone]

Farlex Partner Medical Dictionary © Farlex 2012

stat·o·liths

(stat'ŏ-liths)

Crystalline particles of calcium carbonate and a protein adhering to the gelatinous membrane of the maculae of the utricle and saccule.
Synonym(s): statoconia [TA] , otoconia.

[G. statos, standing, + lithos, stone]

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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References in periodicals archive ?

Ocular VEMPs indicate repositioning of otoconia to the utricle after successful liberatory maneuvers in benign paroxysmal positioning vertigo.

Analyses with the Video Head Impulse Test During the Canalith Repositioning Maneuver in Patients with Isolated Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo

This result suggested that there was no change in the saccule function because there was no return of otoconia, the presence of which would increase the absolute value of the amplitude.

ROLE OF VESTIBULAR EVOKED MYOGENIC POTENTIALS AS AN INDICATOR OF RECOVERY IN PATIENTS WITH BENIGN PAROXYSMAL POSITIONAL VERTIGO

Such studies have suggested that osteoporosis and accordingly the Ca metabolism may be a risk factor for developing BPPV by affecting particularly the peripheral zone in otoconia, which have a similar structure with bone tissue (3).

Analysis of Vitamin D and Calcium Levels in Benign Paroxysmal Positional Vertigo

BPV can result from canalolithiasis where the otoconia are freely floating in the duct of the semicircular canal or cupulolithiasis where the otoconia are adherent to the cupula.

Characteristics of vertigo rehabilitation

Andrew Clements said: "It's caused when debris from otoconia crystals (part of the mechanism by which we balance and sense gravity) fall into the wrong part of the ear."

Dealing with dizzy spells; Experts reveal how to prevent or manage the debilitating conditions that leave your head spinning

Andrew Clements explains: "It's caused when debris from otoconia crystals (part of the mechanism by which we balance and sense gravity) fall into the wrong part of the ear."

Ditch that dizzy head

It occurs when otoconia that are normally embedded in gel in the utricle become dislodged and migrate into the 3 fluid-filled semicircular canals, where they interfere with the normal fluid movement these canals use to sense head motion, causing the inner ear to send false signals to the brain.

"I feel dizzy, Doctor"

BPPV is often accompained with nausea, vomiting, (27) and is usually caused by dislodged otoconia in the posterior semicircular canal.

Assessing and managing patients with dizziness--Part 1

In vertebrates, this organ is called an otocyst with an otolith or otoconia (Budelmann, 1988).

Formation of the statolith in the ctenophore Mnemiopsis leidyi

Crystals--micropar-tides of calcium, called otoconia, that form in the balance canals of the inner ear--cause a condition called benign paroxysmal positional vertigo.

Q&A

Displacement of otoconia from utricle to semicircular canals is held responsible for the development of BPPV.

Benign paroxysmal positional vertigo caused by swimming

The term BPPV relates to otoconia (microscopic calcium carbonate crystals) that are normally present in the utricle of the inner ear being displaced into the semi-circular canals (Barany 1921).

Vestibular influence on cranio-cervical pain: a case report

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