Arousal of Latent Vestibular Asymmetry by Trigeminal Stimulation

2015 ◽  
pp. 58-62 ◽  
Author(s):  
M. Arslan ◽  
C. Marchiori ◽  
F. Polidoro
Keyword(s):  
Trigeminal Stimulation ◽  
Vestibular Asymmetry

Increased double support variability in elderly female fallers with vestibular asymmetry

2015 ◽  
Vol 41 (3) ◽  
pp. 820-824 ◽  
Author(s):  
Johan Larsson ◽  
Eva Ekvall Hansson ◽  
Michael Miller
Keyword(s):  
Double Support ◽  
Elderly Female ◽  
Vestibular Asymmetry

Heart rate responses to non-arousing trigeminal stimulation in infants: Effects of sleep position, sleep state and postnatal age

2005 ◽  
Vol 81 (8) ◽  
pp. 673-681 ◽  
Author(s):  
Rita Tuladhar ◽  
Richard Harding ◽  
T. Michael Adamson ◽  
Rosemary S.C. Horne
Keyword(s):  
Heart Rate ◽  
Sleep Position ◽  
Sleep State ◽  
Trigeminal Stimulation

Improved postural control after computerized optokinetic therapy based on stochastic visual stimulation in patients with vestibular dysfunction

2008 ◽  
Vol 17 (2-3) ◽  
pp. 131-136
Author(s):  
Benjamin Loader ◽  
Wolfgang Gruther ◽  
Christian A. Mueller ◽  
Gerhard Neuwirth ◽  
Stefan Thurner ◽  
...  
Keyword(s):  
Postural Stability ◽  
Visual Stimulation ◽  
Vestibular Dysfunction ◽  
Composite Score ◽  
Sensory Organization Test ◽  
Control Groups ◽  
Sensory Organization ◽  
Somatosensory Input ◽  
And Control ◽  
Vestibular Asymmetry

Balance is accomplished by the congruent integration of visual, vestibular and somatosensory input and the execution of adequate control movements. With increasing age, nonlinear dynamics of central control systems become more regular. In unilateral vestibular dysfunction, sensory input to central systems is similarly less complex, because of one sided reduction of information influx. This study aimed to increase postural stability in patients with vestibular asymmetry and resulting disequilibrium by implementing a computerized visual training method relying on the principles of stochastic resonance. 24 subjects (average age 64a, 31–78a, 15 women, 9 men), with minimum 3 months of persisting disequilibrium due to vestibular dysfunction, were either treated with computerized optokinetic therapy (COKT), or solely observed. Treated patients were requested to read texts, stochastically moving in a previously defined matrix, during 10 sessions over three weeks. The Sensory Organization Test (SOT) was used for comparative posturographic measurements. COKT patients showed significant improvement in conditions 4, 6 and composite score. A significant post-therapeutic difference was seen between therapy and control groups in conditions 1, 6 and composite score. The results show a clinical benefit and we conclude COKT to be an effective rehabilitation method in patients with chronic disequilibrium.

Variability in Retronasal Odor Identification Among Patients With Chronic Rhinosinusitis

2018 ◽  
Vol 32 (5) ◽  
pp. 424-431 ◽  
Author(s):  
Kimia G. Ganjaei ◽  
Zachary M. Soler ◽  
Kristina A. Storck ◽  
Nicholas R. Rowan ◽  
Florence A. Othieno ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Chronic Rhinosinusitis ◽  
Trigeminal Stimulation ◽  
Taste Testing ◽  
Olfactory Testing ◽  
Related Quality ◽  
Individual Odors ◽  
Retronasal Olfaction ◽  
Posterior Tongue

Background Retronasal olfaction is important in flavor detection and enjoyment. The ability to identify specific individual retronasal odors may play a role in quality of life for patients with chronic rhinosinusitis (CRS). Objective To identify patterns and improve understanding of retronasal identification of individual odors in CRS patients. Methods Patients diagnosed with CRS underwent retronasal and orthonasal (Sniffin’ Sticks) olfactory testing and taste testing (taste strips). Retronasal identification was tested with presentation of flavored powders on the posterior tongue. Retronasal identification for individual odors was compared with results of orthonasal and taste testing. Results Seventy participants were evaluated. Retronasal identification correlated with orthonasal identification and discrimination for most individual odors. Among all patients, cinnamon and apple were identified better retronasally and banana better orthonasally ( P < .05). Anosmics identified retronasal orange, cinnamon, mushroom, coffee, smoked ham, peach, ginger, grape, and cheese more than would be expected by chance for a forced-choice paradigm with 3 distractor items ( P < .05), and this was independent of objective taste function for most odors. Conclusion Retronasal and orthonasal identification of most odors correlate in CRS patients; however, patients with anosmia can still identify certain retronasal odors more often than expected. These odors do not appear to stimulate gustatory pathways and may involve trigeminal stimulation. Understanding preserved retronasal neural stimuli may allow providers to improve eating-related quality of life in these patients.

Percutaneous Trigeminal Stimulation for Intractable Facial Pain: A Case Series

Neurosurgery ◽  
2020 ◽  
Vol 87 (3) ◽  
pp. 547-554 ◽  
Author(s):  
Pavlos Texakalidis ◽  
Muhibullah S Tora ◽  
J Tanner McMahon ◽  
Alexander Greven ◽  
Casey L Anthony ◽  
...  
Keyword(s):  
Head Trauma ◽  
Facial Pain ◽  
Rating Scale ◽  
Oral Surgery ◽  
Treatment Options ◽  
Case Series ◽  
Lead Contamination ◽  
Complication Rates ◽  
Trial Period ◽  
Trigeminal Stimulation

Abstract BACKGROUND Facial pain syndromes can be refractory to medical management and often need neurosurgical interventions. Neuromodulation techniques, including percutaneous trigeminal ganglion (TG) stimulation, are reversible and have emerged as alternative treatment options for intractable facial pain. OBJECTIVE To report the complication rates and analgesic effects associated with TG stimulation and identify potential predictors for these outcomes. METHODS A retrospective chart review of 59 patients with refractory facial pain who underwent TG stimulation was conducted. Outcomes following trial period and permanent stimulation were analyzed. Patients with &gt;50% pain relief during trial stimulation received permanent implantation of the stimulation system. RESULTS Successful trial stimulation was endorsed by 71.2% of patients. During the trial period, 1 TG lead erosion was identified. History of trauma (facial/head trauma and oral surgery) was the only predictor of a failed trial compared to pain of idiopathic etiology (odds ratio: 0.15; 95% CI: 0.03-0.66). Following permanent implantation, approximately 29.6% and 26.5% of patients were diagnosed with lead erosion and infection of the hardware, respectively. TG lead migrations occurred in 11.7% of the patients. The numeric rating scale score showed a statistically significant reduction of 2.49 (95% CI: 1.37-3.61; P = .0001) at an average of 10.8 mo following permanent implantation. CONCLUSION TG stimulation is a feasible neuromodulatory approach for the treatment of intractable facial pain. Facial/head trauma and oral surgery may predict a nonsuccessful trial stimulation. Future development of specifically designed electrodes for stimulation of the TG, and solutions to reduce lead contamination are needed to mitigate the relatively high complication rate.

scholarly journals A decade of magnetic vestibular stimulation: from serendipity to physics to the clinic

2019 ◽  
Vol 121 (6) ◽  
pp. 2013-2019 ◽  
Author(s):  
Bryan K. Ward ◽  
Dale C. Roberts ◽  
Jorge Otero-Millan ◽  
David S. Zee
Keyword(s):  
Magnetic Fields ◽  
Inner Ear ◽  
Lorentz Force ◽  
Semicircular Canals ◽  
High Strength ◽  
Ionic Currents ◽  
Vestibular Stimulation ◽  
Static Magnetic Fields ◽  
Magnetic Resonance Imaging Mri ◽  
Vestibular Asymmetry

For many years, people working near strong static magnetic fields of magnetic resonance imaging (MRI) machines have reported dizziness and sensations of vertigo. The discovery a decade ago that a sustained nystagmus can be observed in all humans with an intact labyrinth inside MRI machines led to a possible mechanism: a Lorentz force occurring in the labyrinth from the interactions of normal inner ear ionic currents and the strong static magnetic fields of the MRI machine. Inside an MRI, the Lorentz force acts to induce a constant deflection of the semicircular canal cupula of the superior and lateral semicircular canals. This inner ear stimulation creates a sensation of rotation, and a constant horizontal/torsional nystagmus that can only be observed when visual fixation is removed. Over time, the brain adapts to both the perception of rotation and the nystagmus, with the perception usually diminishing over a few minutes, and the nystagmus persisting at a reduced level for hours. This observation has led to discoveries about how the central vestibular mechanisms adapt to a constant vestibular asymmetry and is a useful model of set-point adaptation or how homeostasis is maintained in response to changes in the internal milieu or the external environment. We review what is known about the effects of stimulation of the vestibular system with high-strength magnetic fields and how the understanding of the mechanism has been refined since it was first proposed. We suggest future ways that magnetic vestibular stimulation might be used to understand vestibular disease and how it might be treated.

scholarly journals Effects of KB-2796 on Plasma Extravasation Following Antidromic Trigeminal Stimulation in the Rat

1995 ◽  
Vol 67 ◽  
pp. 291
Author(s):  
Munehiro Hashimoto ◽  
Yumi Yamamoto ◽  
Shyh-Yuh Liou ◽  
Mineo Kunihara
Keyword(s):  
Plasma Extravasation ◽  
Trigeminal Stimulation

Trigeminal stimulation: A superhighway to the brain?

Neurology ◽  
2013 ◽  
Vol 80 (9) ◽  
pp. 780-781 ◽  
Author(s):  
E. Faught ◽  
W. Tatum
Keyword(s):  
Trigeminal Stimulation ◽  
The Brain
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