Titre : Anticorps anti-cytoplasme des polynucléaires neutrophiles

Anticorps anti-cytoplasme des polynucléaires neutrophiles : Questions médicales fréquentes

Termes MeSH sélectionnés :

Bone Screws
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diagnostic ?\nLes ANCA peuvent-ils être détectés chez des personnes saines ?", "url": "https://questionsmedicales.fr/mesh/D019268?mesh_terms=Bone+Screws&page=3#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur Anticorps anti-cytoplasme des polynucléaires neutrophiles", "description": "Quels sont les symptômes associés aux ANCA ?\nLes ANCA provoquent-ils des symptômes respiratoires ?\nY a-t-il des symptômes cutanés liés aux ANCA ?\nLes ANCA affectent-ils les reins ?\nLes symptômes des ANCA sont-ils similaires à d'autres maladies ?", "url": "https://questionsmedicales.fr/mesh/D019268?mesh_terms=Bone+Screws&page=3#section-symptômes" }, { "@type": "MedicalWebPage", "name": "Prévention", "headline": "Prévention sur Anticorps anti-cytoplasme des polynucléaires neutrophiles", "description": "Peut-on prévenir les maladies liées aux ANCA ?\nLes vaccinations sont-elles recommandées pour les patients ANCA ?\nComment réduire le risque de complications ?\nL'évitement de certains médicaments est-il conseillé ?\nLe stress influence-t-il les maladies ANCA ?", "url": "https://questionsmedicales.fr/mesh/D019268?mesh_terms=Bone+Screws&page=3#section-prévention" }, { "@type": "MedicalWebPage", "name": "Traitements", "headline": "Traitements sur Anticorps anti-cytoplasme des polynucléaires neutrophiles", "description": "Quels traitements sont utilisés pour les ANCA ?\nLes traitements sont-ils personnalisés pour chaque patient ?\nLes ANCA nécessitent-ils un suivi régulier ?\nY a-t-il des effets secondaires aux traitements ?\nLes traitements peuvent-ils guérir les ANCA ?", "url": "https://questionsmedicales.fr/mesh/D019268?mesh_terms=Bone+Screws&page=3#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Anticorps anti-cytoplasme des polynucléaires neutrophiles", "description": "Quelles sont les complications possibles des ANCA ?\nLes ANCA peuvent-ils entraîner des infections ?\nY a-t-il un risque de cancer associé aux ANCA ?\nLes complications sont-elles réversibles ?\nComment surveiller les complications des ANCA ?", "url": "https://questionsmedicales.fr/mesh/D019268?mesh_terms=Bone+Screws&page=3#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Anticorps anti-cytoplasme des polynucléaires neutrophiles", "description": "Quels sont les facteurs de risque des ANCA ?\nLe sexe influence-t-il le risque d'ANCA ?\nL'âge joue-t-il un rôle dans le développement des ANCA ?\nCertaines professions augmentent-elles le risque d'ANCA ?\nLes infections antérieures sont-elles un facteur de risque ?", "url": "https://questionsmedicales.fr/mesh/D019268?mesh_terms=Bone+Screws&page=3#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer la présence d'ANCA ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Un test sanguin spécifique détecte les ANCA dans le sérum du patient." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour les ANCA ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Les tests ELISA et indirect immunofluorescence sont couramment utilisés." } }, { "@type": "Question", "name": "Les ANCA sont-ils toujours présents dans les maladies ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Non, leur présence varie selon la maladie et le stade de l'inflammation." } }, { "@type": "Question", "name": "Quel rôle joue l'historique médical dans le diagnostic ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "L'historique aide à identifier les symptômes et les antécédents de maladies auto-immunes." } }, { "@type": "Question", "name": "Les ANCA peuvent-ils être détectés chez des personnes saines ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Oui, des ANCA peuvent être présents à faible niveau chez des individus sains." } }, { "@type": "Question", "name": "Quels sont les symptômes associés aux ANCA ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes incluent fatigue, fièvre, perte de poids et douleurs articulaires." } }, { "@type": "Question", "name": "Les ANCA provoquent-ils des symptômes respiratoires ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Oui, ils peuvent causer des symptômes respiratoires comme la toux et l'essoufflement." } }, { "@type": "Question", "name": "Y a-t-il des symptômes cutanés liés aux ANCA ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Des éruptions cutanées et des lésions peuvent apparaître chez certains patients." } }, { "@type": "Question", "name": "Les ANCA affectent-ils les reins ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Oui, ils peuvent entraîner des atteintes rénales, comme la glomérulonéphrite." } }, { "@type": "Question", "name": "Les symptômes des ANCA sont-ils similaires à d'autres maladies ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Oui, ils peuvent être confondus avec d'autres maladies auto-immunes ou inflammatoires." } }, { "@type": "Question", "name": "Peut-on prévenir les maladies liées aux ANCA ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Il n'existe pas de méthode de prévention spécifique, mais un mode de vie sain aide." } }, { "@type": "Question", "name": "Les vaccinations sont-elles recommandées pour les patients ANCA ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les vaccinations peuvent être recommandées pour prévenir les infections." } }, { "@type": "Question", "name": "Comment réduire le risque de complications ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Un suivi médical régulier et une gestion proactive des symptômes sont essentiels." } }, { "@type": "Question", "name": "L'évitement de certains médicaments est-il conseillé ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certains médicaments peuvent aggraver les symptômes et doivent être évités." } }, { "@type": "Question", "name": "Le stress influence-t-il les maladies ANCA ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le stress peut aggraver les symptômes et doit être géré efficacement." } }, { "@type": "Question", "name": "Quels traitements sont utilisés pour les ANCA ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Les corticostéroïdes et les immunosuppresseurs sont souvent prescrits." } }, { "@type": "Question", "name": "Les traitements sont-ils personnalisés pour chaque patient ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le traitement est adapté en fonction de la gravité et des symptômes du patient." } }, { "@type": "Question", "name": "Les ANCA nécessitent-ils un suivi régulier ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Oui, un suivi régulier est essentiel pour ajuster le traitement et surveiller l'évolution." } }, { "@type": "Question", "name": "Y a-t-il des effets secondaires aux traitements ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les traitements peuvent avoir des effets secondaires comme l'infection ou l'ostéoporose." } }, { "@type": "Question", "name": "Les traitements peuvent-ils guérir les ANCA ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Il n'existe pas de cure, mais les traitements peuvent contrôler les symptômes et la progression." } }, { "@type": "Question", "name": "Quelles sont les complications possibles des ANCA ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Les complications incluent des atteintes rénales, pulmonaires et cardiovasculaires." } }, { "@type": "Question", "name": "Les ANCA peuvent-ils entraîner des infections ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les traitements immunosuppresseurs augmentent le risque d'infections." } }, { "@type": "Question", "name": "Y a-t-il un risque de cancer associé aux ANCA ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Certaines études suggèrent un risque accru de certains cancers chez les patients ANCA." } }, { "@type": "Question", "name": "Les complications sont-elles réversibles ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Certaines complications peuvent être réversibles avec un traitement approprié." } }, { "@type": "Question", "name": "Comment surveiller les complications des ANCA ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Des examens réguliers et des tests sanguins aident à surveiller les complications." } }, { "@type": "Question", "name": "Quels sont les facteurs de risque des ANCA ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent des antécédents familiaux, le tabagisme et certaines infections." } }, { "@type": "Question", "name": "Le sexe influence-t-il le risque d'ANCA ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les femmes sont plus souvent touchées par les maladies associées aux ANCA." } }, { "@type": "Question", "name": "L'âge joue-t-il un rôle dans le développement des ANCA ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les ANCA apparaissent généralement chez les adultes jeunes à moyens d'âge." } }, { "@type": "Question", "name": "Certaines professions augmentent-elles le risque d'ANCA ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les professions exposant à des produits chimiques peuvent augmenter le risque." } }, { "@type": "Question", "name": "Les infections antérieures sont-elles un facteur de risque ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, certaines infections peuvent déclencher la production d'ANCA chez des individus prédisposés." } } ] } ] }

Sources (10000 au total)

Cancellous compression bone grafting using headless screw as a strut in scaphoid nonunion by a single volar approach.

An array of fixation and grafting techniques for scaphoid nonunion have been described over time, achieving varied results pertaining to union and scaphoid alignment. The aim of this study was to chec... Retrospective analysis of all patients operated by the said technique was done from 2013 to 2019. Thirty-eight patients including 36 males and two females in the age range of 20-56 years were analyzed... Of the patients analyzed, 5/38 were nonunions of proximal pole, 19/38 of waist and 14/38 were of distal pole which included nonunions of cystic type or with humpback deformity. Patients were followed ... Union rates, correction of scaphoid parameters and minimal complications justifies this technique as a novel one in the management of scaphoid nonunion at all levels, with minimal donor site morbidity...

Combining Cylindrical Bone Graft and Headless Screw Fixation for Nonunion of the Medial Trochlea of the Elbow: A Case Report.

A 19-year-old handballer presented with elbow pain and nonunion of the medial trochlea of the elbow. He had undergone earlier surgery for an elbow injury at 6 years of age. Revision surgery for nonuni... Combining cylindrical bone graft and headless screw fixation using the extra-articular technique is an option for managing nonunion of the medial trochlea of the elbow....

Fixation stability comparison of bone screws based on thread design: buttress thread, triangle thread, and square thread.

The influence of thread profile on the fixation stability of bone screws remains unclear. This study aimed to compare the fixation stability of screws with different thread profiles under several load... Bone screws that differed in thread profile (buttress, triangle, and square thread) only were made of stainless steel. Their fixation stabilities were evaluated individually by the axial pullout test ... The triangle-threaded and square-threaded screws had the highest pullout forces and lateral migration resistance. When being applied to a dynamic compression plate, higher forces and more cycles were ... The triangle-threaded screws had superior pullout strength, while square-threaded screws demonstrated the highest lateral migration resistance. Moreover, dynamic compression plate fixation with triang...

Proximal bone block with distal screw trajectory improves mechanical stability during distalization tibial tubercle osteotomy.

The purpose of this study was to quantify differences in mechanical stability of a wedge-shaped distalization tibial tubercle osteotomy (TTO) with a standard technique, versus a modified technique wit... Ten fresh-frozen cadaver lower extremity specimens (five matched pairs) were utilized. Within each specimen pair, one specimen was randomly assigned to undergo a standard distalization osteotomy fixed... The modified distalization TTO technique demonstrated significantly higher average load to failure compared to the standard distalization TTO technique (1339 N vs. 844.1 N, p < 0.001). Average maximum... This study demonstrates that distalization TTO utilizing a modified technique with a proximal bone block and distally aimed screws is biomechanically superior to standard distalization TTO without pro...

Optimal position and apex-subchondral bone distance of cannulated screws for internal fixation of femoral neck fracture: A radiological study.

To determine the optimal position of three cannulated screws in an inverted triangle pattern for internal fixation of femoral neck fractures, including the apex-subchondral bone distance, computed tom...

Antegrade anterior column acetabulum fracture fixation with cannulated compression headless screws-A biomechanical study on standardized osteoporotic artificial bone.

Due to the increase in life expectancy and high-energy traumas, anterior column acetabular fractures (ACFs) are also increasing. While open reduction and internal fixation (ORIF) is still the standard... Eight anatomical osteoporotic composite pelvises were given an anterior column fracture. Two groups of eight specimens each (n = 8) for fixation with either a 6.5 mm cannulated compression headless sc... Initial construct stiffness trended higher in group AACCH at 152.4 ± 23.1 N/mm compared to group AASS at 118.5 ± 34.3 N/mm, p = 0.051. Numbers of cycles and corresponding peak load at failure, were si... From a biomechanical perspective, group AACCH was associated with superior biomechanical competence compared to standard partially threaded cannulated screws and could therefore be considered as valid...

Patellar dislocation recurrence after pediatric MPFL reconstruction: Bone tunnels and soft tissues versus suture anchors and interference screw.

Several Medial Patellofemoral Ligament (MPFL) reconstruction techniques have been developed, and those with soft tissue fixation are often preferred in children because they allow the growth cartilage... The two tendon graft fixation techniques used in MPFL reconstruction are equivalent in terms of the patellar dislocation recurrence rate.... This is a retrospective comparative study including 57 patients with a median age of 14 years (12-15 years) who underwent MPFL reconstruction between 2016 and 2020. The tendon graft was fixed upon its... no patients were lost to follow-up and the median follow-up was 30 months (IQR: 20-38). The dislocation recurrence rate was higher in Group A, 6.9% (2/29) compared to none in Group B. The clinical res... Clinically, anchor-screw fixation appears to reduce the risk of patellar dislocation recurrence but this could not be statistically tested. On the other hand, the two techniques are comparable in term... III; retrospective case-control study....

Curative effect of external fixation combined with kirschner wire versus hollow screw in the treatment of first metacarpal bone base fracture.

This study was conducted aimed at comparing the curative effect of external fixation combined with Kirschner wire fixation versus hollow screw fixation in the treatment of first metacarpal bone base f... The current retrospective study included a total of 80 patients diagnosed with first metacarpal bone base fracture who were admitted in Wuxi 9th People's Hospital Affiliated to Soochow University betw... Operation time, amount of bleeding, length of incision, length of hospital stay, and fracture healing time did not differ between the two groups (all P > 0.05). Pain score was comparable between the t... External fixation combined with Kirschner wire fixation and hollow screw fixation exhibited similar curative effect in treating first metacarpal bone base fracture, indicating both surgery methods may...

Impact of screw tip design on screw anchorage: mechanical testing and numerical simulation.

Screw loosening is a commonly reported issue following spinal screw fixation and can lead to various complications. The initial cause of screw loosening is biomechanical deterioration. Previous studie... This study conducted comprehensive biomechanical research using polyurethane foam mechanical tests and corresponding numerical simulations to investigate this topic. Models of pedicle screw-fixed oste... Mechanical tests revealed superior anchorage ability in models utilizing flat-tipped screws. Furthermore, numerical modeling indicated improved anchorage ability and reduced stress concentration tende... Changes in screw tip design can significantly impact the biomechanical anchoring capability of screws. Specifically, flatter tip pedicle screws may mitigate the risk of screw loosening by alleviating ...