Titre : Culture virale

Culture virale : Questions médicales fréquentes

Termes MeSH sélectionnés :

Lymph Nodes
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augmentent-ils le risque d'infection ?", "url": "https://questionsmedicales.fr/mesh/D014776?mesh_terms=Lymph+Nodes&page=3#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment se déroule un test de culture virale ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Un échantillon est inoculé sur un milieu de culture pour observer la croissance virale." } }, { "@type": "Question", "name": "Quels échantillons sont utilisés pour la culture virale ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Les échantillons peuvent inclure du sang, des sécrétions respiratoires ou des biopsies." } }, { "@type": "Question", "name": "Quels tests complètent la culture virale ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Les tests sérologiques et PCR sont souvent utilisés pour confirmer l'infection virale." } }, { "@type": "Question", "name": "Combien de temps prend une culture virale ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "La culture virale peut prendre de quelques jours à plusieurs semaines selon le virus." } }, { "@type": "Question", "name": "Quels signes indiquent une infection virale dans une culture ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "L'apparition de cytopathies ou de plaques de lyse indique une infection virale." } }, { "@type": "Question", "name": "Quels symptômes peuvent indiquer une infection virale ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Fièvre, fatigue, toux, douleurs musculaires et éruptions cutanées sont fréquents." } }, { "@type": "Question", "name": "Les symptômes varient selon le virus ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Oui, chaque virus peut provoquer des symptômes spécifiques selon son tropisme." } }, { "@type": "Question", "name": "Comment les symptômes évoluent-ils avec une infection virale ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes peuvent s'aggraver ou s'améliorer selon la réponse immunitaire." } }, { "@type": "Question", "name": "Les symptômes sont-ils toujours présents lors d'une culture virale ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Pas nécessairement, certains virus peuvent être asymptomatiques lors de la culture." } }, { "@type": "Question", "name": "Quels symptômes nécessitent une culture virale urgente ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Des symptômes graves comme une détresse respiratoire ou une méningite justifient une culture." } }, { "@type": "Question", "name": "Comment prévenir les infections virales ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Vaccination, hygiène des mains et éviter le contact avec des personnes infectées." } }, { "@type": "Question", "name": "Les vaccins sont-ils efficaces contre tous les virus ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Non, chaque vaccin cible des virus spécifiques et leur efficacité varie." } }, { "@type": "Question", "name": "Quelles mesures d'hygiène sont recommandées ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Se laver les mains régulièrement et désinfecter les surfaces fréquemment touchées." } }, { "@type": "Question", "name": "Les masques aident-ils à prévenir les infections virales ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les masques réduisent la transmission des virus respiratoires." } }, { "@type": "Question", "name": "Les voyages augmentent-ils le risque d'infection virale ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les voyages peuvent exposer à de nouveaux virus et à des épidémies." } }, { "@type": "Question", "name": "Quels traitements sont disponibles pour les infections virales ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Les antiviraux, les immunoglobulines et les traitements symptomatiques sont utilisés." } }, { "@type": "Question", "name": "La culture virale aide-t-elle à choisir un traitement ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, elle permet d'identifier le virus et de déterminer la sensibilité aux antiviraux." } }, { "@type": "Question", "name": "Les antibiotiques sont-ils efficaces contre les virus ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Non, les antibiotiques ne sont efficaces que contre les infections bactériennes." } }, { "@type": "Question", "name": "Comment les antiviraux agissent-ils ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Ils inhibent la réplication virale ou modulent la réponse immunitaire." } }, { "@type": "Question", "name": "Les traitements sont-ils les mêmes pour tous les virus ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Non, chaque virus peut nécessiter un traitement spécifique selon sa biologie." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir après une infection virale ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des complications comme la pneumonie, la méningite ou des syndromes post-viraux peuvent survenir." } }, { "@type": "Question", "name": "Les complications sont-elles prévisibles ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Certaines complications peuvent être prévisibles selon le virus et l'état de santé du patient." } }, { "@type": "Question", "name": "Comment les complications sont-elles traitées ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Le traitement dépend de la complication, allant des soins de soutien à des interventions spécifiques." } }, { "@type": "Question", "name": "Les enfants sont-ils plus à risque de complications ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certains virus peuvent entraîner des complications plus graves chez les enfants." } }, { "@type": "Question", "name": "Les personnes âgées sont-elles plus vulnérables aux complications ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les personnes âgées ont un système immunitaire affaibli, augmentant le risque de complications." } }, { "@type": "Question", "name": "Quels facteurs augmentent le risque d'infection virale ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Un système immunitaire affaibli, le stress, et des conditions de vie insalubres augmentent le risque." } }, { "@type": "Question", "name": "L'âge influence-t-il le risque d'infection virale ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les jeunes enfants et les personnes âgées sont plus susceptibles aux infections virales." } }, { "@type": "Question", "name": "Les maladies chroniques augmentent-elles le risque ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des maladies comme le diabète ou les maladies pulmonaires augmentent le risque d'infection." } }, { "@type": "Question", "name": "Le mode de vie influence-t-il le risque d'infection virale ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, un mode de vie sédentaire et une mauvaise alimentation peuvent augmenter le risque." } }, { "@type": "Question", "name": "Les voyages à l'étranger augmentent-ils le risque d'infection ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, voyager dans des zones endémiques expose à des virus non rencontrés localement." } } ] } ] }

Sources (6540 au total)

Indications for sentinel lymph node biopsy in node-negative oral cancers.

We aimed to define the indications for sentinel lymph node biopsy (SLNB), the third option for cervical treatment in oral cancer with negative cervical lymph nodes.... The greatest depth of invasion (DOI) and long diameter (LD) of the primary site were used as exposures. SLN metastasis was considered the outcome.... In three trials conducted between 2009 and 2016, 158 patients were eligible and reassigned to this study group. The scatterplot based on the respective values of DOI and LD would eventually be divided... SLNB-navigated or assisted neck dissection can be added as an effective procedure for N0 neck control....

Clinical target volume automatic segmentation based on lymph node stations for lung cancer with bulky lump lymph nodes.

The lack of standardized delineation of lymph node station in lung cancer radiotherapy leads to nonstandard clinical target volume (CTV) contouring, especially in patients with bulky lump gross target... Computed tomography (CT) scans of 200 patients with small cell lung cancer were collected. The lymph node zone boundaries were defined based on the IASLC lymph node map, with adjustments to meet radio... The mean 3D Dice similarity coefficient (Dice similarity coefficient) values of DiUNet in most lymph node stations was greater than 0.7, 98.87% of the lymph node station slices are accepted. The mean ... This is the first study to propose a method that automatically contours lymph node regions station by station based on the IASLC lymph node map with bulky lump GTVnd. Delineation of lymph node station...

Metastatic lymph node ratio as an important prognostic factor in advanced gallbladder carcinoma with at least 6 lymph nodes retrieved.

The metastatic lymph node (LN) ratio (LNR) has shown to be an important prognostic factor in various gastrointestinal malignancies. Nevertheless, the prognostic significance of LNR in gallbladder carc... From January 2007 to January 2018, 144 advanced GBC patients (T2-4 stages) who underwent curative surgery with at least 6 LNs retrieved were enrolled. Receiver operating characteristic (ROC) curve was... The optimal cut-off point for LNR was 0.28 according to the ROC curve. LNR>0.28 was associated with higher rate of D2 LN dissection (P=0.004) and higher tumor stages (P<0.001). Extent of liver resecti... LNR is correlated to advanced GBC prognosis and is a potential prognostic factor for advanced GBC with at least 6 LNs retrieved....

Diagnostic Accuracy of Lymph Nodes Fine Needle Aspiration Biopsy Based on The Sydney System for Reporting Lymph Node Cytology.

To evaluate the diagnostic accuracy and malignancy risk of The Sydney System Reporting for Lymph Nodes Cytology.... This study utilized secondary data from 156 cases to conduct a retrospective analysis of a diagnostic test method. During 2019-2021, data were collected at Dr. Wahidin Sudirohusodo's Anatomical Pathol... There were six cases in the L1 category, thirty-two cases in the L2 category, thirteen patients in the L3 category, seventeen cases in the L4 category, and ninety-one cases in the L5 class. The malign... The FNAB examination provides high sensitivity, specificity, and accuracy in diagnosing lymph node tumors. Using a classification based on the Sydney system promotes communication between laboratories...

RATIO OF METASTATIC LYMPH NODES VS. RESECTED LYMPH NODES (N-RATIO) HAS PROGNOSTIC IMPLICATIONS IN GASTRIC CANCER.

Lymph node status is vital for gastric cancer (GC) prognosis, but the conventional pN stage may be limited by variations in lymphadenectomy and stage migration. The N-Ratio, which assesses the ratio o... To assess N-Ratios prognostic value in GC, particularly in patients with <25 resected lymph nodes.... Patients who underwent gastrectomy with curative intent for GC were retrospectively evaluated. The N-Ratio categories were determined using the ROC curve method, and the area under the curve (AUC) was... A total of 561 GC patients were included in the study, 57% had pN+ status, and 17.5% had <25 resected lymph nodes. N-Ratio, with a mean of 0.12, predicted survival with 74% accuracy (AUC=0.74; 95%CI 0... N-Ratio influenced survival in GC patients, especially in advanced lymph node disease (N-Ratio 3). Considering that N-Ratio does not impact pN0 cases, individualized prognosis assessment is essential ...

N1 lymph node detection in lymph node harvesting in non-small cell lung cancer: Formaldehyde exposure is a drawback?

This study aimed to evaluate the effect of lymph node dissection method on staging results, diagnosis of tumor metastasis in single or multiple N1 lymph nodes and survival rates in patients with non-s... Patients with NSCLC who underwent anatomic resection between September 2014 and October 2019 were examined prospectively. All patients with similar clinico-demographic characteristics were randomly as... There were no significant differences in N1 lymph node positivity between the two groups (p = 0.482). On average 9.08 lymph node sampling was performed in the surgical group and 2.39 in the pathology ... It is easier to detect lymph node involvement without introducing formaldehyde into the sample. We recommend that N1 lymph node dissection be performed on fresh specimens to detect more lymph node inv...

Single-cell profile of tumor and immune cells in primary breast cancer, sentinel lymph node, and metastatic lymph node.

Little is known about the host-tumor interaction in the lymph-node basin at a single cell level. This study examines single cell sequences in breast cancer nodal metastases of a patient with triple-ne... The primary breast tumor, sentinel lymph node, an adjacent lymph node with metastatic involvement and a clinically normal-appearing lymph node were collected during surgery. Single-cell sequencing was... 14,016 cells were clustered into 6 cell subpopulations. Cancer cells demonstrated the molecular characteristics of TNBC basal B subtype and highly expressed genes in the MAPK signaling cascade. Tumor-... Single-cell sequencing analysis suggested that the sentinel lymph node was the initial meeting site of tumor infiltration and immune response, where partial T lymphocytes perform anti-tumor activity, ...

Lymph Node Positivity: Indication for Preoperative MRI?

The purpose was to determine what factors help predict benefit from preoperative MRI.... We conducted an IRB approved retrospective review of patients with breast cancer who underwent preoperative MRI (2018-2021). Patients were divided into a cohort of no new disease detected on MRI versu... Of 420 patients with a new diagnosis of breast cancer who underwent preoperative MRI, 17% had new multicentric, multifocal, or contralateral disease detected. There was no difference between the two c... Patients with nodal disease detected in their evaluation are more likely to have new multifocal, multicentric, or contralateral disease detected on MRI. The use of preoperative MRI may be particularly...