Titre : Stimulation du nerf vague

Stimulation du nerf vague : Questions médicales fréquentes

Termes MeSH sélectionnés :

Visual Field Tests
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"https://questionsmedicales.fr/mesh/D055536?mesh_terms=Visual+Field+Tests&page=4#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Stimulation du nerf vague", "description": "Quels facteurs augmentent le risque d'épilepsie ?\nLa dépression a-t-elle des facteurs de risque ?\nLes jeunes sont-ils plus à risque ?\nLe sexe influence-t-il le risque de dépression ?\nComment le mode de vie affecte-t-il le risque ?", "url": "https://questionsmedicales.fr/mesh/D055536?mesh_terms=Visual+Field+Tests&page=4#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer une épilepsie réfractaire ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Un EEG et des antécédents médicaux sont essentiels pour diagnostiquer l'épilepsie réfractaire." } }, { "@type": "Question", "name": "Quels tests pour évaluer la dépression ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des échelles d'évaluation et des entretiens cliniques aident à diagnostiquer la dépression." } }, { "@type": "Question", "name": "Quels critères pour la stimulation du nerf vague ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "La stimulation est envisagée après échec de plusieurs traitements médicamenteux." } }, { "@type": "Question", "name": "Comment évaluer l'efficacité de la stimulation ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "L'efficacité est mesurée par la réduction des crises ou des symptômes dépressifs." } }, { "@type": "Question", "name": "Quels spécialistes impliqués dans le diagnostic ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Neurologues et psychiatres sont souvent impliqués dans le diagnostic et le traitement." } }, { "@type": "Question", "name": "Quels symptômes traités par la stimulation ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Elle traite les crises d'épilepsie et les symptômes de dépression résistante." } }, { "@type": "Question", "name": "Quels effets secondaires possibles ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Les effets secondaires incluent des douleurs au cou, des troubles de la voix et des nausées." } }, { "@type": "Question", "name": "Comment se manifeste une crise épileptique ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Les crises peuvent se manifester par des convulsions, des pertes de conscience ou des sensations anormales." } }, { "@type": "Question", "name": "Quels signes de dépression à surveiller ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Les signes incluent la tristesse persistante, la fatigue, et la perte d'intérêt." } }, { "@type": "Question", "name": "La stimulation affecte-t-elle l'humeur ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle peut améliorer l'humeur chez certains patients souffrant de dépression." } }, { "@type": "Question", "name": "Peut-on prévenir les crises épileptiques ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Certaines mesures comme la prise régulière de médicaments peuvent aider à prévenir les crises." } }, { "@type": "Question", "name": "Comment réduire les symptômes dépressifs ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Une thérapie régulière et un mode de vie sain peuvent aider à réduire les symptômes." } }, { "@type": "Question", "name": "Y a-t-il des facteurs de risque à éviter ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Éviter l'alcool, le stress excessif et le manque de sommeil peut réduire les risques." } }, { "@type": "Question", "name": "La stimulation peut-elle être préventive ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Elle est principalement utilisée pour traiter, mais peut prévenir des crises chez certains patients." } }, { "@type": "Question", "name": "Quels conseils pour un mode de vie sain ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Exercice régulier, alimentation équilibrée et gestion du stress sont recommandés." } }, { "@type": "Question", "name": "Comment fonctionne la stimulation du nerf vague ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Elle envoie des impulsions électriques au nerf vague pour moduler l'activité cérébrale." } }, { "@type": "Question", "name": "Quelle est la procédure de mise en place ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Un dispositif est implanté chirurgicalement sous la peau, connecté au nerf vague." } }, { "@type": "Question", "name": "Combien de temps dure le traitement ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Le traitement est généralement à long terme, avec des ajustements réguliers." } }, { "@type": "Question", "name": "Quels médicaments peuvent être associés ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Des anticonvulsivants ou des antidépresseurs peuvent être utilisés en complément." } }, { "@type": "Question", "name": "Y a-t-il des alternatives à la stimulation ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Oui, d'autres options incluent la thérapie médicamenteuse et la thérapie comportementale." } }, { "@type": "Question", "name": "Quelles complications possibles de la stimulation ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Les complications peuvent inclure infection, douleur au site d'implantation ou dysphonie." } }, { "@type": "Question", "name": "Comment gérer les effets secondaires ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Consulter un médecin pour ajuster le traitement ou gérer les effets secondaires." } }, { "@type": "Question", "name": "Y a-t-il des risques à long terme ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Des études sont nécessaires pour évaluer les effets à long terme de la stimulation." } }, { "@type": "Question", "name": "Comment reconnaître une infection post-opératoire ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Les signes incluent rougeur, chaleur, douleur accrue et écoulement au site d'implantation." } }, { "@type": "Question", "name": "Quels sont les impacts psychologiques possibles ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Des changements d'humeur ou d'anxiété peuvent survenir après la stimulation." } }, { "@type": "Question", "name": "Quels facteurs augmentent le risque d'épilepsie ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Antécédents familiaux, traumatismes crâniens et infections cérébrales augmentent le risque." } }, { "@type": "Question", "name": "La dépression a-t-elle des facteurs de risque ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des antécédents familiaux, stress et événements traumatiques sont des facteurs de risque." } }, { "@type": "Question", "name": "Les jeunes sont-ils plus à risque ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Les jeunes adultes peuvent être plus à risque de développer des troubles épileptiques." } }, { "@type": "Question", "name": "Le sexe influence-t-il le risque de dépression ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les femmes sont souvent plus susceptibles de souffrir de dépression que les hommes." } }, { "@type": "Question", "name": "Comment le mode de vie affecte-t-il le risque ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Un mode de vie sédentaire et une mauvaise alimentation peuvent augmenter le risque de dépression." } } ] } ] }

Sources (10000 au total)

Smoking Cessation May Reduce Risk of Visual Field Progression in Heavy Smokers.

The earlier a person quits smoking the more likely is the optic nerve be spared from damage.... To investigate the effect of smoking cessation on visual field (VF) progression in glaucoma.... Primary open angle glaucoma patients with a minimum of 3 years follow-up and 5 VFs were included. Linear mixed models were used to investigate the effects of smoking on the rates of 24-2 VF mean devia... Five hundred eleven eyes of 354 patients were included over the mean follow-up of 12.4 years. Mean baseline age (95% confidence interval) was 62.3 (61.2, 63.4) years. One hundred forty nine (42.1%) pa... After ≥25 years of smoking cessation, the risk of VF progression in former heavy smokers becomes similar to never smokers. Long-term smoking cessation may be associated with lower VF progression in gl...

Correlation between Interocular Asymmetry of Corneal Hysteresis and Visual Field Defect in Glaucoma.

To evaluate the relationship between interocular asymmetries of corneal hysteresis (CH) and visual field defects in Korean patients with glaucoma.... A total of 444 eyes from 222 participants with glaucoma in at least one eye were enrolled. CH was measured using an ocular response analyzer (Reichert Technologies Inc). Eyes of each participant were ... Median (interquartile range) MD value was -3.71 dB (-6.87 to -1.30 dB) in the better eye and -10.20 dB (-16.32 to -5.62 dB) in the worse eye. When the correlation between the asymmetry of the MD value... The interocular asymmetry of CH was significantly correlated with the interocular asymmetry of visual field defects in glaucoma....

Comparing the Accuracy of Peripapillary OCT Scans and Visual Fields to Detect Glaucoma Worsening.

To compare the accuracy of detecting moderate and rapid rates of glaucoma worsening over a 2-year period with different numbers of OCT scans and visual field (VF) tests in a large sample of glaucoma a... Descriptive and simulation study.... The OCT sample comprised 12 150 eyes from 7392 adults with glaucoma or glaucoma suspect status followed up at the Wilmer Eye Institute from 2013 through 2021. The VF sample comprised 20 583 eyes from ... Within-eye rates of change in retinal nerve fiber layer (RNFL) thickness and mean deviation (MD) were measured using linear regression. For each measured rate, simulated measurements of RNFL thickness... The accuracy of diagnosing moderate and rapid rates of glaucoma worsening for different numbers of OCT scans and VF tests over a 2-year period.... Accuracy was less than 50% for both OCT and VF when diagnosing worsening after a 2-year period. OCT accuracy was 5 to 10 percentage points higher than VF accuracy at detecting moderate worsening and 1... More frequent OCT scans and VF tests are needed to improve the accuracy of diagnosing glaucoma worsening. Accuracy greatly increases when relying on both OCT and VF to detect worsening.... The author(s) have no proprietary or commercial interest in any materials discussed in this article....

Two-Year Visual Field Outcomes of the Treatment of Advanced Glaucoma Study (TAGS).

to compare visual field (VF) progression between the 2 arms of the Treatment of Advanced Glaucoma Study (TAGS).... Post hoc analysis of VF data from a 2-arm, multicenter, randomized controlled clinical trial.... A total of 453 patients with newly diagnosed advanced open-angle glaucoma in at least 1 eye from 27 centers in the United Kingdom were randomized to either trabeculectomy (n = 227) or medication in th... This study analyzed 211 eyes in the trabeculectomy first arm and 203 eyes in the medication first arm. The average RoP (estimate [95% credible intervals]) was -0.59 [-0.88, -0.31] dB/year in the medic... There was no significant difference in the average RoP at 2 years....

Visual Field Endpoints for Neuroprotective Trials: A Case for AI-Driven Patient Enrichment.

To evaluate whether an artificial intelligence (AI) model can better select candidates that would demonstrate visual field (VF) progression, in order to shorten the duration or the number of patients ... Retrospective cohort study.... 7428 eyes of 3871 patients from the University of Washington Department of Ophthalmology VF Dataset were included. Progression was defined as at least 5 locations with >7 dB of change compared with ba... A total of 13% of all patients met the criteria for progression at 5 years. Differences in survival were observed when stratified by MD and age (P < .0001). Those at risk of progression included patie... An AI model can identify high-risk patients to substantially reduce the number of patients needed or study duration required to meet clinical trial endpoints....

Fast Progressors in Glaucoma: Prevalence Based on Global and Central Visual Field Loss.

To determine the prevalence of fast global and central visual field (VF) progression in individuals with glaucoma under routine care.... Observational study.... Six hundred ninety-three eyes of 461 individuals with glaucoma followed up over a median of 4.5 years.... This study included (1) patients at a private ophthalmology clinic in Melbourne, Australia, and (2) individuals in 2 prospective longitudinal observational studies across 3 sites in the United States.... Prevalence of progression based on the rate of MD and the MTD... Based on the MD and the MTD... This study found that approximately 1 in 8 eyes with glaucoma receiving routine care showed fast progression based on global MD values (< -1.0 dB/year) and that nearly 1 in 3 eyes showed a < -0.5 dB/y... Proprietary or commercial disclosure may be found after the references....

Accuracy of Visual Fields in Localizing MRI Lesions in Posterior Cerebral Artery Infarction.

The representation of the visual field in visual cortex was established over a century ago by correlating perimetric defects with the estimated location of war wounds. The availability of high-definit... Homonymous hemianopias disclosed on automated visual fields (HVFs) were drawn from an electronic medical record search from 2009 to 2020 at the Michigan Medicine, a tertiary care academic medical cent... Among the 77 VFDs confined to 1 hemifield, 74 (96%) correctly predicted the side of the visual cortex lesion. In 3 cases, the MRI lesion in the opposite cerebral hemisphere was not foretold. Among the... In this study of PCA ischemic stroke, VFDs limited to 1 hemifield were accurate in locating the side and quadrant of the MRI visual cortex lesions. However, the quadrantic VFDs sometimes failed to pre...

Baseline 10-2 Visual Field Loss as a Predictor for Future Glaucoma Progression.

Presence of baseline 10-2 visual field (VF) loss was the strongest predictor of future rate of 24-2 VF loss and development of new 24-2 progression events, suggesting a role for 10-2 VF testing in bas... The purpose of this study is to examine the relationship between baseline 10-2 VF loss and future 24-2 VF loss.... Subjects were participating in a prospective longitudinal study within a VA Medical Center outpatient eye clinic. Eligibility required 2 good quality baseline 10-2 VF tests followed by a minimum of 5 ... We studied 394 eyes of 202 subjects (119 primary open angle glaucoma and 83 glaucoma suspect). Over 6.7 (±1.5) years, 9.9 (±2.3) good quality 24-2 VF tests were completed. In mixed model regression an... Baseline 10-2 VF defect was the most effective predictor of subsequent 24-2 VF progression in this study. These findings imply that presence of baseline 10-2 VF loss may provide unique value for predi...