Titre : Pupille

Pupille : Questions médicales fréquentes

Termes MeSH sélectionnés :

Catecholamines
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"position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des pupilles asymétriques ou non réactives peuvent signaler des troubles neurologiques." } }, { "@type": "Question", "name": "Quel test évalue la réactivité de la pupille ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Le test de la lumière évalue la réactivité de la pupille à la lumière." } }, { "@type": "Question", "name": "Comment détecter un réflexe pupillaire ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "On observe la contraction de la pupille en réponse à la lumière ou à un objet proche." } }, { "@type": "Question", "name": "Quels outils sont utilisés pour examiner la pupille ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Un ophtalmoscope et une lampe à fente sont couramment utilisés pour cet examen." } }, { "@type": "Question", "name": "Quels symptômes indiquent une dilatation anormale de la pupille ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Une dilatation anormale peut être accompagnée de maux de tête ou de vision floue." } }, { "@type": "Question", "name": "Que signifie une pupille réactive à la lumière ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Une pupille réactive indique un bon fonctionnement du nerf optique et du système nerveux." } }, { "@type": "Question", "name": "Quels signes peuvent indiquer une pupille non réactive ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Une pupille non réactive peut signaler une lésion cérébrale ou une intoxication." } }, { "@type": "Question", "name": "Comment la douleur oculaire affecte-t-elle la pupille ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "La douleur oculaire peut entraîner une constriction ou une dilatation de la pupille." } }, { "@type": "Question", "name": "Quels symptômes accompagnent une anisocorie ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "L'anisocorie peut s'accompagner de vision double ou de maux de tête." } }, { "@type": "Question", "name": "Comment prévenir les troubles pupillaires ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Évitez les traumatismes oculaires et consultez régulièrement un ophtalmologiste." } }, { "@type": "Question", "name": "Quels examens réguliers sont recommandés ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Des examens ophtalmologiques réguliers aident à détecter précocement les anomalies pupillaires." } }, { "@type": "Question", "name": "Comment protéger les yeux des UV ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Portez des lunettes de soleil avec protection UV pour prévenir les dommages oculaires." } }, { "@type": "Question", "name": "Quels aliments favorisent la santé des yeux ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Les légumes à feuilles vertes, les carottes et les poissons gras sont bénéfiques pour les yeux." } }, { "@type": "Question", "name": "Comment éviter la fatigue oculaire ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Faites des pauses régulières lors de l'utilisation d'écrans pour réduire la fatigue oculaire." } }, { "@type": "Question", "name": "Comment traiter une pupille dilatée ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Le traitement dépend de la cause sous-jacente, comme des médicaments ou une intervention chirurgicale." } }, { "@type": "Question", "name": "Quels médicaments affectent la taille de la pupille ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Des médicaments comme les mydriatiques peuvent provoquer une dilatation de la pupille." } }, { "@type": "Question", "name": "Quand une intervention chirurgicale est-elle nécessaire ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Une chirurgie peut être nécessaire en cas de traumatisme ou de maladies oculaires graves." } }, { "@type": "Question", "name": "Comment traiter une pupille non réactive ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Le traitement vise à traiter la cause, comme une infection ou une lésion cérébrale." } }, { "@type": "Question", "name": "Quels remèdes naturels peuvent aider la santé des yeux ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Des compléments comme la lutéine et des aliments riches en antioxydants peuvent être bénéfiques." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir avec une pupille non réactive ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des complications neurologiques graves peuvent survenir, nécessitant une attention médicale urgente." } }, { "@type": "Question", "name": "Comment une infection peut-elle affecter la pupille ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Une infection oculaire peut entraîner une inflammation et des changements dans la taille de la pupille." } }, { "@type": "Question", "name": "Quels risques sont associés à une chirurgie de la pupille ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Les risques incluent l'infection, les saignements et des complications de la vision." } }, { "@type": "Question", "name": "Comment une lésion cérébrale affecte-t-elle la pupille ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Une lésion cérébrale peut provoquer des changements dans la réactivité et la taille de la pupille." } }, { "@type": "Question", "name": "Quels effets secondaires des médicaments peuvent affecter la pupille ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Certains médicaments peuvent provoquer une dilatation ou une constriction anormale de la pupille." } }, { "@type": "Question", "name": "Quels facteurs augmentent le risque de troubles pupillaires ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les antécédents familiaux, les traumatismes oculaires et certaines maladies neurologiques augmentent le risque." } }, { "@type": "Question", "name": "Comment le stress affecte-t-il la pupille ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Le stress peut provoquer une dilatation temporaire de la pupille en raison de la réponse au stress." } }, { "@type": "Question", "name": "Quels médicaments sont des facteurs de risque pour la pupille ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Les médicaments comme les antidépresseurs et les mydriatiques peuvent affecter la pupille." } }, { "@type": "Question", "name": "Quel rôle joue l'âge dans la santé de la pupille ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Avec l'âge, la réactivité de la pupille peut diminuer, augmentant le risque de troubles." } }, { "@type": "Question", "name": "Comment les maladies systémiques influencent-elles la pupille ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Des maladies comme le diabète peuvent affecter la santé des nerfs oculaires et la pupille." } } ] } ] }

Sources (287 au total)

Assessment of plasma catecholamines in patients with dysmetabolic iron overload syndrome.

Dysmetabolic iron overload syndrome (DIOS) is characterized by hyperferritinemia and normal transferrin saturation level with components of metabolic syndrome (MS). Among cases of MS, we determined th... We compared 101 hypertensive patients with 50 healthy participants (control group). Iron (iron, transferrin, and ferritin), insulin, and plasma catecholamine (adrenaline, noradrenaline, and dopamine),... Out of 101 hypertensive patients, 64 were diagnosed with MS, and 6 of the latter met the DIOS diagnostic criteria. Significantly, DIOS patients were older and had lower body mass index (BMI) compared ... Of the MS patients, 9.3% were diagnosed with DIOS. Accordingly, complete iron profiling should be performed routinely in the cases of MS for early diagnosis of DIOS, to prevent future complications. F...

Importance of catecholamine signaling in the development of platelet exhaustion after traumatic injury.

Impaired ex vivo platelet aggregation is common in trauma patients. The mechanisms driving these impairments remain incompletely understood, but functional platelet exhaustion due to excessive in vivo... To determine the relationship of catecholamines with platelet-dependent hemostasis after injury and to model catecholamine-induced functional platelet exhaustion in healthy donor platelets.... Whole blood was collected from 67 trauma patients as part of a prospective cohort study. Platelet aggregometry and rotational thromboelastometry were performed, and plasma epinephrine (EPI) and norepi... In trauma patients, EPI and NE were associated with impaired platelet aggregation (both p < 0.05), and EPI was additionally associated with decreased viscoelastic clot strength, increased fibrinolysis... These findings suggest sympathoadrenal activation in trauma patients contributes to impaired ex vivo platelet aggregation, which mechanistically may be explained by a functionally exhausted platelet p...

Effects of Catecholamines on Blood Flow in Preterm Infants: A Subanalysis of PICC-MBF Trial.

This study evaluated the correlation between skin blood flow and systemic blood flow and whether skin blood flow can determine the circulatory effects of dopamine and dobutamine on blood flow in very ... This study was a subanalysis of the PICC-MBF randomized controlled trial. The correlation between skin blood flow and echocardiographic findings was examined. Changes in skin blood flow and blood pres... Two hundred and thirty-four participants underwent echocardiography. Skin blood flow was significantly correlated with supra vena cava (SVC) flow (r = 0.31, p &lt; 0.001). Receiver operator characteri... Our findings indicated that skin blood flow could be used as a surrogate marker of systemic blood flow in VLBW infants and revealed differences in the effects of dopamine and dobutamine on circulation...