Comment identifier un gastéropode ?

Les gastéropodes se distinguent par leur corps mou, souvent protégé par une coquille spiralée.

Quels outils pour diagnostiquer les gastéropodes ?

L'observation morphologique et l'analyse génétique sont couramment utilisés.

Les gastéropodes sont-ils classés par habitat ?

Oui, ils sont classés selon leur habitat : terrestre, aquatique, marin.

Quelles caractéristiques morphologiques sont importantes ?

La forme de la coquille, la taille et la couleur sont des critères clés.

Peut-on utiliser des techniques d'imagerie ?

Oui, des techniques comme la microscopie peuvent aider à l'identification.

Quels sont les symptômes d'une infestation de gastéropodes ?

Les symptômes incluent des dommages aux cultures et des dégradations de l'environnement.

Les gastéropodes peuvent-ils être nuisibles ?

Oui, certains gastéropodes sont des ravageurs agricoles et peuvent causer des pertes.

Comment les gastéropodes affectent-ils la santé humaine ?

Certains peuvent transmettre des parasites ou des maladies par contamination.

Quels signes indiquent une surpopulation de gastéropodes ?

Une surpopulation se manifeste par des dommages visibles aux plantes et des excréments.

Les gastéropodes peuvent-ils causer des allergies ?

Certaines personnes peuvent développer des allergies aux sécrétions de gastéropodes.

Quelles mesures préventives contre les gastéropodes ?

Utiliser des barrières physiques et cultiver des plantes résistantes sont efficaces.

Comment l'aménagement paysager aide-t-il ?

Un aménagement paysager bien conçu peut réduire les habitats favorables aux gastéropodes.

Les rotations de cultures sont-elles utiles ?

Oui, la rotation des cultures peut réduire la population de gastéropodes dans les champs.

L'utilisation de paillis aide-t-elle ?

Oui, le paillis peut limiter l'accès des gastéropodes aux plantes en créant une barrière.

Les conditions climatiques influencent-elles les gastéropodes ?

Oui, l'humidité et la température affectent leur reproduction et leur activité.

Comment traiter une infestation de gastéropodes ?

Des méthodes mécaniques, chimiques ou biologiques peuvent être utilisées pour le contrôle.

Quels produits chimiques sont efficaces contre les gastéropodes ?

Des molluscicides spécifiques sont souvent utilisés pour traiter les infestations.

Y a-t-il des traitements biologiques pour les gastéropodes ?

Oui, l'utilisation de prédateurs naturels comme les canards est une méthode efficace.

Les traitements sont-ils sûrs pour l'environnement ?

Certains traitements chimiques peuvent être nocifs, il est donc important de choisir judicieusement.

Comment prévenir les infestations de gastéropodes ?

Maintenir un sol sain et utiliser des barrières physiques peut aider à prévenir les infestations.

Quelles complications peuvent survenir avec les gastéropodes ?

Les complications incluent des pertes de récolte et des déséquilibres écologiques.

Les gastéropodes peuvent-ils causer des maladies ?

Oui, certains gastéropodes sont des vecteurs de maladies parasitaires chez l'homme.

Comment les gastéropodes affectent-ils la biodiversité ?

Une surpopulation de gastéropodes peut nuire à d'autres espèces en compétition pour les ressources.

Les gastéropodes peuvent-ils causer des allergies ?

Certaines personnes peuvent développer des allergies aux sécrétions de gastéropodes.

Quels impacts économiques ont les gastéropodes ?

Les infestations de gastéropodes peuvent entraîner des pertes économiques significatives pour les agriculteurs.

Quels facteurs augmentent le risque d'infestation ?

L'humidité élevée et la présence de débris végétaux favorisent les infestations de gastéropodes.

Les pratiques agricoles influencent-elles les gastéropodes ?

Oui, des pratiques comme le labourage peuvent créer des conditions favorables à leur prolifération.

Les changements climatiques affectent-ils les gastéropodes ?

Oui, les changements climatiques peuvent modifier leur habitat et leur cycle de vie.

Les espèces de plantes influencent-elles les gastéropodes ?

Certaines plantes attirent plus de gastéropodes, augmentant ainsi le risque d'infestation.

Les zones urbaines sont-elles à risque ?

Oui, les jardins urbains peuvent être des habitats propices aux gastéropodes en raison de l'humidité.

Gastropoda - 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

Gastropoda : 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

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