Titre : Virulence

Virulence : Questions médicales fréquentes

Termes MeSH sélectionnés :

Cataract
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infections virulentes ?", "url": "https://questionsmedicales.fr/mesh/D014774?mesh_terms=Cataract&page=5#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Virulence", "description": "Quelles complications peuvent survenir avec une virulence élevée ?\nLa virulence peut-elle entraîner des complications à long terme ?\nComment gérer les complications liées à la virulence ?\nLes complications varient-elles selon le pathogène ?\nQuels facteurs aggravent les complications virulentes ?", "url": "https://questionsmedicales.fr/mesh/D014774?mesh_terms=Cataract&page=5#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Virulence", "description": "Quels sont les principaux facteurs de risque de virulence ?\nL'immunodépression augmente-t-elle la virulence ?\nComment l'environnement influence-t-il la virulence ?\nLes habitudes de vie peuvent-elles affecter la virulence ?\nLes voyages augmentent-ils le risque de virulence ?", "url": "https://questionsmedicales.fr/mesh/D014774?mesh_terms=Cataract&page=5#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment évaluer la virulence d'un pathogène ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "La virulence peut être évaluée par des tests de culture, des modèles animaux et des analyses génétiques." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour diagnostiquer une infection virulente ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des cultures microbiologiques, des tests PCR et des sérologies sont couramment utilisés." } }, { "@type": "Question", "name": "La virulence peut-elle être mesurée quantitativement ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des indices comme le LD50 (dose létale) permettent de quantifier la virulence." } }, { "@type": "Question", "name": "Quels signes cliniques indiquent une virulence élevée ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Une virulence élevée se manifeste par des symptômes graves, une progression rapide de la maladie." } }, { "@type": "Question", "name": "Comment les tests génétiques aident-ils au diagnostic ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Les tests génétiques identifient des gènes de virulence spécifiques, facilitant le diagnostic." } }, { "@type": "Question", "name": "Quels sont les symptômes d'une infection virulente ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes varient, mais incluent fièvre, douleur, inflammation et fatigue intense." } }, { "@type": "Question", "name": "La virulence influence-t-elle la gravité des symptômes ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une virulence élevée entraîne souvent des symptômes plus graves et des complications." } }, { "@type": "Question", "name": "Quels symptômes sont associés à des bactéries hautement virulentes ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Des symptômes comme septicémie, choc toxique et défaillance multi-organes peuvent survenir." } }, { "@type": "Question", "name": "Les symptômes varient-ils selon le pathogène ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Oui, chaque pathogène a un profil symptomatique distinct en fonction de sa virulence." } }, { "@type": "Question", "name": "Comment les symptômes évoluent-ils avec la virulence ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Une virulence accrue peut entraîner une progression rapide et des symptômes plus sévères." } }, { "@type": "Question", "name": "Comment prévenir les infections virulentes ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "La prévention inclut l'hygiène, la vaccination et l'éducation sur les modes de transmission." } }, { "@type": "Question", "name": "Les mesures d'hygiène réduisent-elles la virulence ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Oui, une bonne hygiène diminue la transmission et donc l'impact de la virulence." } }, { "@type": "Question", "name": "Quel rôle joue la vaccination dans la virulence ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "La vaccination prépare le système immunitaire, réduisant ainsi la virulence des infections." } }, { "@type": "Question", "name": "Les campagnes de sensibilisation sont-elles efficaces ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elles augmentent la connaissance des risques et des mesures préventives contre la virulence." } }, { "@type": "Question", "name": "Comment le contrôle des infections aide-t-il à prévenir la virulence ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Le contrôle des infections limite la propagation des agents pathogènes virulents dans la population." } }, { "@type": "Question", "name": "Quels traitements sont efficaces contre les infections virulentes ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Les antibiotiques, antiviraux et traitements symptomatiques sont utilisés selon le pathogène." } }, { "@type": "Question", "name": "La résistance aux antibiotiques affecte-t-elle la virulence ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, la résistance peut augmenter la virulence en rendant les infections plus difficiles à traiter." } }, { "@type": "Question", "name": "Comment la virulence influence-t-elle le choix du traitement ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Une virulence élevée nécessite souvent des traitements plus agressifs et une surveillance étroite." } }, { "@type": "Question", "name": "Les vaccins peuvent-ils réduire la virulence ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les vaccins peuvent diminuer la virulence en préparant le système immunitaire à réagir." } }, { "@type": "Question", "name": "Quels sont les défis dans le traitement des infections virulentes ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Les défis incluent la résistance aux médicaments, la virulence variable et les co-infections." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec une virulence élevée ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des complications comme la septicémie, l'insuffisance organique et la mort peuvent survenir." } }, { "@type": "Question", "name": "La virulence peut-elle entraîner des complications à long terme ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certaines infections virulentes peuvent causer des séquelles chroniques et des maladies persistantes." } }, { "@type": "Question", "name": "Comment gérer les complications liées à la virulence ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "La gestion inclut un traitement rapide, un suivi médical et des soins de soutien appropriés." } }, { "@type": "Question", "name": "Les complications varient-elles selon le pathogène ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, chaque pathogène peut entraîner des complications spécifiques en fonction de sa virulence." } }, { "@type": "Question", "name": "Quels facteurs aggravent les complications virulentes ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "L'âge, les comorbidités et l'immunodépression peuvent aggraver les complications virulentes." } }, { "@type": "Question", "name": "Quels sont les principaux facteurs de risque de virulence ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent l'âge, l'état immunitaire, les maladies chroniques et l'exposition environnementale." } }, { "@type": "Question", "name": "L'immunodépression augmente-t-elle la virulence ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les personnes immunodéprimées sont plus susceptibles de développer des infections virulentes." } }, { "@type": "Question", "name": "Comment l'environnement influence-t-il la virulence ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Des conditions environnementales comme l'hygiène et la densité de population affectent la virulence." } }, { "@type": "Question", "name": "Les habitudes de vie peuvent-elles affecter la virulence ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des habitudes comme le tabagisme et l'alcoolisme peuvent augmenter le risque d'infections virulentes." } }, { "@type": "Question", "name": "Les voyages augmentent-ils le risque de virulence ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les voyages peuvent exposer à des agents pathogènes virulents non présents localement." } } ] } ] }

Sources (2019 au total)

[Radiation-induced cataract-an occult risk for urologists].

Radiation-induced cataracts represent a relevant risk to people occupationally exposed to radiation. The annual limit dose for the eye lens was reduced to 20 mSv per year by German legislation (radiat... Is there a risk of exceeding the annual limit dose for the eye lens in routine urological practice without special radiation protection for the head?... As part of a prospective, monocentric dosimetry study, of 542 different urological, fluoroscopically guided interventions, the eye lens dose was determined using a forehead dosimeter (thermo-luminesce... An average head dose of 0.05 mSv per intervention (max. 0.29 mSv) was found with an average dose area product of 485.33 Gy/cm... With 400 procedures per year or an average of 2 procedures per working day, the critical annual limit value for the eye lenses or for the risk of radiation-induced cataract would be exceeded without s... Consistently effective radiation protection of the eye lens is essential for daily work in uroradiological interventions. This may require further technical developments....

Cataract surgery and the risk of progression of macular degeneration.

Cataract surgery improves vision loss due to cataracts in eyes with co-existing age-related macular degeneration (AMD), but whether surgery itself pose an increased risk for the progression of AMD has... Recent evidence suggests that cataract surgery does not increase the risk for progression of AMD.... Cataract surgery should be discussed in patients with both AMD and visually significant cataract. Patients should be reassured that the cataract surgery will not increase the risk of AMD progression. ...

Outcome of Cataract Surgery in Patients With Retinitis Pigmentosa.

To assess the visual outcome of cataract surgery in patients with retinitis pigmentosa (RP).... Retrospective, noncomparative clinical study.... Preoperative, intraoperative, and postoperative data of patients with RP who were undergoing cataract surgery were collected from several expertise centers across Europe.... In total, 295 eyes of 226 patients were included in the study. The mean age at surgery of the first eye was 56.1 ± 17.9 years. Following surgery, best-corrected visual acuity (BCVA) improved significa... Significant improvements in BCVA are observed in most patients with RP following cataract surgery. Baseline BCVA is a predictor of visual outcome. Preoperative evaluation should include the assessment...

Changes in refraction after cataract phacoemulsification surgery.

After cataract phacoemulsification surgery, spherical equivalent refraction (SER) may be affected by factors including corneal curvature, effective lens position and axial length. While refractive out... This was a retrospective observational study that included 344 eyes of 204 patients who underwent cataract emulsification surgery between 1 January and 31 December 2018 at two private hospitals. Kerat... Between 1 month and 3 years post-operatively, an overall myopic shift (0.32 ± 0.21 D, p < 0.001) occurred in 33.6% of eyes and a hypermetropic shift in 45.2% of eyes (0.35 ± 0.22 D, p < 0.001). In 21.... The 3-year timeline changes in SER after cataract surgery were evaluated. As hypermetropic shift was the most common refractive change observed, it may be beneficial to aim for a more myopic post-oper...

Hyperacute iris neovascularization following cataract surgery.

We describe a case of acute neovascularization of the iris after uneventful cataract surgery.... A 78-year-old man visited our clinic for cataract surgery and glaucoma management.... The patient underwent bilateral laser iridotomy 4 years ago. On ocular examination, the best-corrected visual acuity was no light perception in the right eye and 20/100 in the left eye. We observed ps... The patient underwent cataract surgery in the left eye without complications.... The day after surgery we observed 360° of neovascularization in the iris and aggravated hemi-CRVO with macular edema. Therefore, we administered intravitreal bevacizumab in the left eye, after which t... Cataract surgery can rapidly aggravate hemi-CRVO and cause iris neovascularization, which is responsive to bevacizumab....