Comment évaluer un réflexe?

L'évaluation se fait par des tests cliniques comme le test des réflexes tendineux.

Quels examens pour un réflexe anormal?

Des examens neurologiques et des imageries comme l'IRM peuvent être nécessaires.

Quels signes indiquent un réflexe pathologique?

Des réflexes exagérés ou absents peuvent indiquer des troubles neurologiques.

Comment tester le réflexe rotulien?

Le réflexe rotulien se teste en frappant le tendon rotulien avec un marteau réflexe.

Qu'est-ce qu'un réflexe d'extension?

C'est une réponse où la jambe s'étend en réponse à un stimulus au niveau du pied.

Quels symptômes d'un réflexe altéré?

Des douleurs, des spasmes musculaires ou une faiblesse peuvent survenir.

Comment reconnaître un réflexe anormal?

Un réflexe anormal peut se manifester par une réponse excessive ou absente.

Quels symptômes d'un réflexe exagéré?

Des mouvements brusques et incontrôlés peuvent indiquer un réflexe exagéré.

Un réflexe peut-il causer de la douleur?

Oui, certains réflexes peuvent provoquer des douleurs, surtout s'ils sont exagérés.

Quels signes neurologiques associés aux réflexes?

Des signes comme des tremblements ou des mouvements involontaires peuvent apparaître.

Comment prévenir les troubles des réflexes?

Maintenir une bonne santé neurologique par l'exercice et une alimentation équilibrée aide.

Y a-t-il des exercices pour les réflexes?

Oui, des exercices de coordination et d'équilibre peuvent améliorer les réflexes.

Comment éviter les blessures liées aux réflexes?

Pratiquer des activités en toute sécurité et éviter les mouvements brusques aide à prévenir les blessures.

L'alimentation influence-t-elle les réflexes?

Une alimentation riche en nutriments essentiels peut soutenir la fonction nerveuse et les réflexes.

Le stress affecte-t-il les réflexes?

Oui, le stress peut altérer la réponse réflexe en affectant le système nerveux.

Comment traiter un réflexe hyperactif?

Des médicaments relaxants musculaires ou des thérapies physiques peuvent aider.

Y a-t-il des traitements pour les réflexes anormaux?

Oui, la thérapie physique et les médicaments peuvent corriger les réflexes anormaux.

Les réflexes peuvent-ils être modifiés?

Certaines thérapies peuvent aider à modifier les réflexes, comme la rééducation.

Quel rôle de la kinésithérapie sur les réflexes?

La kinésithérapie peut améliorer la coordination et réduire les réflexes inappropriés.

Des interventions chirurgicales pour les réflexes?

Dans certains cas, une intervention chirurgicale peut être nécessaire pour corriger des réflexes.

Quelles complications des réflexes anormaux?

Des complications peuvent inclure des douleurs chroniques et des troubles de la mobilité.

Les réflexes peuvent-ils causer des accidents?

Des réflexes inappropriés peuvent entraîner des accidents, surtout en conduisant.

Quels risques neurologiques liés aux réflexes?

Des réflexes altérés peuvent indiquer des maladies neurologiques graves comme la sclérose en plaques.

Les réflexes affectent-ils la qualité de vie?

Oui, des réflexes anormaux peuvent réduire la qualité de vie en limitant les activités quotidiennes.

Des complications psychologiques liées aux réflexes?

Des réflexes inappropriés peuvent entraîner de l'anxiété ou des troubles de l'humeur.

Quels facteurs de risque pour les réflexes altérés?

L'âge, les maladies neurologiques et les traumatismes peuvent augmenter le risque.

Le diabète influence-t-il les réflexes?

Oui, le diabète peut affecter les réflexes en endommageant les nerfs périphériques.

L'alcool affecte-t-il les réflexes?

Oui, la consommation excessive d'alcool peut altérer les réflexes et la coordination.

Le stress comme facteur de risque?

Le stress chronique peut affecter le système nerveux et altérer les réflexes.

Les médicaments influencent-ils les réflexes?

Certains médicaments, comme les sédatifs, peuvent ralentir les réflexes et la réponse.

Réflexe - Informations médicales vérifiées

Tilt testing.

23 Nov 2023

DOI: 10.1136/pn-2023-003749 PMID: 37726165

Tilt testing can help to diagnose unexplained syncope, by precipitating an episode during cardiac monitoring. The Italian protocol, now most widely used, involves giving sublingual nitroglycerine afte...

Humans Hypotension, Orthostatic Tilt-Table Test Syncope Syncope, Vasovagal +2 autres

Syncope without prodromes is associated with excessive plasma release of adenosine at the time of syncope during head-up tilt table test.

15 09 2022

DOI: 10.1016/j.ijcard.2022.06.045 PMID: 35716941

In syncopal patients without underlying structural disease, we sought to investigate the association of Adenosine Plasma Levels (ADP) with the clinical presentation of neurally mediated syncope (NMS) ... We studied 124 patients with different clinical types of NMS, i.e., Vasovagal (VVS, n=58), non-prodromes (NPS, n=18), or situational syncope (SS, n=48), using a standard protocol including HUTT and AD... Baseline ADP did not differ among groups. ADP at syncope were higher in NPS (n=5) compared to VVS (n=20): 0.23 vs. 0.12 μΜ, p=0.03, and SS (n=22): 0.04 μΜ, p=0.02. In NPS, ADP increased from supine to... The subset of NPS patients with positive HUTT, show excessive ADP release at the time of syncope. This may explain the lack of prodromes in this form of syncope. Such observations contribute to the un...

Adenosine Adenosine Diphosphate Humans Syncope Syncope, Vasovagal +1 autres

Dynamic ST-segment elevation during head-up tilt test.

05 2023

DOI: 10.1111/anec.13029 PMID: 36484708

Dynamic ST-segment elevation during head-up tilt testing with normal coronary angiography....

Humans Electrocardiography Coronary Angiography Tilt-Table Test Arrhythmias, Cardiac

The clinical presentation of syncope influences the head-up tilt test responses.

04 2023

DOI: 10.1016/j.ejim.2023.01.001 PMID: 36639324

Little is still known about the positivity rate of nitroglycerin (NTG) potentiated head-up tilt test (HUTT) according to the history-based clinical features of syncope. The study aimed to compare the ... We retrospectively evaluated all consecutive patients who underwent NTG-potentiated HUTT for VVS. The study population was dichotomized into classical and non-classical VVS.... A total of 1285 VVS patients (45± 19.1 years; 49.6% male) were enrolled: 627 (48.8%) had a history of classical VVS and 658 (51.2%) of non-classical VVS. HUTT was positive in 866 (67.4%) patients. The... The clinical presentation of syncope influences the overall HUTT positivity rate and the type of responses. Cardioinhibitory response and traumatic syncope are more likely in patients with non-classic...

Humans Male Female Retrospective Studies Syncope +3 autres

Tilt table testing, methodology and practical insights for the clinic.

15 Oct 2023

DOI: 10.1111/cpf.12859 PMID: 37839043

Tilt table testing (TTT) has been used for decades to study short-term blood pressure (BP) and heart rate regulation during orthostatic challenges. TTT provokes vasovagal reflex in many syncope patien...

The Cardiac Autonomic Response Recovery to the Modified Tilt Test in Children Post Moderate-Severe Traumatic Brain Injury.

03 07 2022

DOI: 10.1080/02699052.2022.2110942 PMID: 35971307

To assess the recovery of the cardiac autonomic control system (CACS) response to the modified tilt-test during rehabilitation, in children post moderate-severe TBI at the subacute phase post-injury.... Thirty-seven children aged 6-18 years, 14-162 days post moderate-severe TBI, participated in the study. The assessment included CACS values evaluation (heart rate (HR), heart rate variability (HRV) an... In both assessments, only four children reported symptoms associated with orthostatic intolerance during the modified tilt-test. No change was found over time in the HR and HRV values at rest. In resp... Children post moderate-severe TBI at the sub-acute phase post-injury, have a better systolic blood pressure response during the modified tilt-test after eight weeks of individually tailored rehabilita... NCT03215082....

Adolescent Autonomic Nervous System Blood Pressure Brain Injuries, Traumatic Child +3 autres

A higher peak heart rate during head-up tilt test predicts the therapeutic efficacy of metoprolol in vasovagal syncope.

18 Oct 2024

DOI: 10.1186/s12872-024-04249-4 PMID: 39425043

Although beta blockers, such as metoprolol, have been widely used in the management of vasovagal syncope (VVS), their efficacy remains debated, with larger studies showing limited benefit. Identifying... This retrospective study was conducted at a single center. Patients diagnosed with VVS and treated with metoprolol for a minimum of three months were included. A 50% reduction in syncope symptom score... A total of 168 VVS patients were enrolled between January 2016 and December 2020. Of these, 100 patients responded positively to metoprolol, while 68 did not. No significant differences in baseline ch... Higher peak HR, larger increases in HR, and greater HR variability during the HUTT may serve as reliable predictors of a positive response to metoprolol in patients with VVS....

Humans Metoprolol Syncope, Vasovagal Female Male +11 autres

Clinical and Autonomic Profile, and Modified Calgary Score for Children and Adolescents with Presumed Vasovagal Syncope Submitted to the Tilt Test.

2023

DOI: 10.36660/abc.20220543 PMID: 37556654

In the pediatric population, syncope is mainly from vasovagal (VVS) origin. Its evaluation must be done by clinical methods, and the tilt test (TT) can contribute to the diagnosis.... To analyze the clinical profile, Calgary and modified Calgary scores, response to TT and heart rate variability (HRV) of patients aged ≤ 18 years with presumed VVS. To compare the variables between pa... Observational and prospective study, with 73 patients aged between 6 and 18 years, submitted to clinical evaluation and calculation of scores without previous knowledge of the TT. It was done at 70º u... Median age was 14.0 years; 52% of participants were female, 72 had Calgary ≥ -2 (mean 1.80), and 69 had modified Calgary ≥ -3 (mean 1.38). Prodromes were observed in 59 patients, recurrence in 50 and ... Most children and adolescents with a presumed diagnosis of VVS presented a typical clinical scenario, with a Calgary score ≥ -2, and a predominant vasodepressor response to TT. Greater sympathetic act...

Adolescent Child Female Humans Male +6 autres

The effects of ALDH2 Glu487Lys polymorphism on vasovagal syncope patients undergoing head-up tilt test supplemented with sublingual nitroglycerin.

28 10 2022

DOI: 10.1186/s12872-022-02901-5 PMID: 36307771

Head-up tilt test (HUTT) is clinically advantageous for diagnosing patients with vasovagal syncope (VVS). Nitroglycerin is mainly used as a stimulant during HUTT, and mitochondrial aldehyde dehydrogen... A total of 199 VVS patients were enrolled, including 101 patients in the ALDH2*1/*1 group and 98 patients in the ALDH2*2 group. Among patients undergoing HUTT-NTG, 70.3% of patients in the ALDH2*1/*1 ... ALDH2 Glu487Lys polymorphism did not affect the outcome of VVS patients undergoing HUTT-NTG, and no significant change in the hemodynamic characteristics of different genotypes was found....

Humans Syncope, Vasovagal Nitroglycerin Tilt-Table Test Syncope +2 autres

Effect of the early diastolic blood pressure response to the head-up tilt test on the recurrence of benign paroxysmal positional vertigo.

2024

DOI: 10.1371/journal.pone.0301800 PMID: 38696405

Otolith organ acts complementarily with the autonomic nervous system to maintain blood pressure. However, the effect of blood pressure variability in the autonomic nervous system on otolith organ has ... This study included 432 patients diagnosed with idiopathic BPPV. The follow-up period for all patients was 12 months. Age, sex, hypertension, diabetes and recurrence were analyzed. The HUTT parameters... In summary, the group with increased average diastolic blood pressure (DBP1) showed a higher tendency for BPPV recurrence compared to the group with decreased diastolic blood pressure (DBP2) in the up... It is presumed that poor autonomic nervous system response through vestibulosympathetic reflex maintains elevated diastolic blood pressure in the upright position during the HUTT. This variability is ...

Humans Male Female Benign Paroxysmal Positional Vertigo Middle Aged +9 autres

Réflexe : Questions médicales fréquentes

Termes MeSH sélectionnés :

Questions fréquentes et termes MeSH associés

Diagnostic 5

Symptômes 5

Prévention 5

Traitements 5

Complications 5

Facteurs de risque 5

Contenu validé par Dr Olivier Menir

Sous-catégories

Baroréflexe

Réflexe de plongée

Réflexe pharyngé

Réflexe cutané abdominal

Réflexes anormaux

Réflexe stapédien

Signe de Babinski

Réflexe monosynaptique

Réflexe oculocardiaque

Réflexe pupillaire

Réflexe de redressement

Réflexe d'étirement

Réflexe trigéminocardiaque

Réflexe vestibulo-oculaire

Réflexe de sursaut

Réflexe H

Auteurs principaux

Sources (10000 au total)