Titre : Épinéphrine

Épinéphrine : Questions médicales fréquentes

Termes MeSH sélectionnés :

Platelet Transfusion
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"datePublished": "2025-05-09", "inLanguage": "fr", "hasPart": [ { "@type": "MedicalWebPage", "name": "Diagnostic", "headline": "Diagnostic sur Épinéphrine", "description": "Comment diagnostiquer une anaphylaxie ?\nQuels tests sont utilisés pour évaluer l'épinéphrine ?\nQuels signes indiquent un choc anaphylactique ?\nComment évaluer une réaction allergique ?\nQuels sont les critères de diagnostic de l'anaphylaxie ?", "url": "https://questionsmedicales.fr/mesh/D004837?mesh_terms=Platelet+Transfusion&page=4#section-diagnostic" }, { "@type": "MedicalWebPage", "name": "Symptômes", "headline": "Symptômes sur Épinéphrine", "description": "Quels sont les symptômes d'une surdose d'épinéphrine ?\nComment reconnaître une réaction allergique ?\nQuels signes indiquent une crise d'asthme ?\nQuels symptômes nécessitent une injection d'épinéphrine ?\nQuels sont les effets secondaires de l'épinéphrine ?", "url": 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"https://questionsmedicales.fr/mesh/D004837?mesh_terms=Platelet+Transfusion&page=4#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Épinéphrine", "description": "Quelles complications peuvent survenir après une injection d'épinéphrine ?\nQuels risques sont associés à une surdose d'épinéphrine ?\nComment gérer les effets secondaires de l'épinéphrine ?\nQuelles sont les conséquences d'une anaphylaxie non traitée ?\nQuels sont les effets à long terme d'une anaphylaxie ?", "url": "https://questionsmedicales.fr/mesh/D004837?mesh_terms=Platelet+Transfusion&page=4#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Épinéphrine", "description": "Quels sont les facteurs de risque d'anaphylaxie ?\nComment l'âge influence-t-il le risque d'anaphylaxie ?\nQuels médicaments augmentent le risque d'allergies ?\nComment les allergies alimentaires influencent-elles le risque ?\nQuels facteurs environnementaux peuvent aggraver les allergies ?", "url": "https://questionsmedicales.fr/mesh/D004837?mesh_terms=Platelet+Transfusion&page=4#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment diagnostiquer une anaphylaxie ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "L'anaphylaxie est diagnostiquée par des symptômes cliniques et l'historique d'exposition à un allergène." } }, { "@type": "Question", "name": "Quels tests sont utilisés pour évaluer l'épinéphrine ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des tests de laboratoire peuvent mesurer les niveaux d'épinéphrine dans le sang en cas de besoin." } }, { "@type": "Question", "name": "Quels signes indiquent un choc anaphylactique ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Les signes incluent une difficulté respiratoire, une chute de la pression artérielle et des éruptions cutanées." } }, { "@type": "Question", "name": "Comment évaluer une réaction allergique ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "L'évaluation se fait par l'examen des symptômes et l'historique médical du patient." } }, { "@type": "Question", "name": "Quels sont les critères de diagnostic de l'anaphylaxie ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Les critères incluent des symptômes cutanés, respiratoires et gastro-intestinaux après exposition à un allergène." } }, { "@type": "Question", "name": "Quels sont les symptômes d'une surdose d'épinéphrine ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes incluent palpitations, anxiété, tremblements et hypertension." } }, { "@type": "Question", "name": "Comment reconnaître une réaction allergique ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Les réactions allergiques peuvent se manifester par des démangeaisons, des éruptions cutanées et un gonflement." } }, { "@type": "Question", "name": "Quels signes indiquent une crise d'asthme ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Les signes incluent une respiration sifflante, une toux persistante et une oppression thoracique." } }, { "@type": "Question", "name": "Quels symptômes nécessitent une injection d'épinéphrine ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Des symptômes graves comme des difficultés respiratoires et un gonflement du visage nécessitent une injection." } }, { "@type": "Question", "name": "Quels sont les effets secondaires de l'épinéphrine ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Les effets secondaires peuvent inclure des palpitations, des maux de tête et des nausées." } }, { "@type": "Question", "name": "Comment prévenir une réaction allergique ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Évitez les allergènes connus et portez un auto-injecteur d'épinéphrine en cas d'urgence." } }, { "@type": "Question", "name": "Quelles précautions prendre avec l'épinéphrine ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Conservez l'épinéphrine à température ambiante et vérifiez la date d'expiration régulièrement." } }, { "@type": "Question", "name": "Comment éduquer sur l'utilisation de l'épinéphrine ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Formez les patients et leurs proches à reconnaître les symptômes et à administrer l'épinéphrine." } }, { "@type": "Question", "name": "Quels sont les conseils pour les personnes allergiques ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Ayez toujours un auto-injecteur, informez votre entourage et portez un bracelet d'alerte médicale." } }, { "@type": "Question", "name": "Comment éviter les déclencheurs d'allergies ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Identifiez et évitez les aliments, médicaments ou insectes qui provoquent des réactions." } }, { "@type": "Question", "name": "Comment administrer l'épinéphrine en cas d'urgence ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "L'épinéphrine est généralement administrée par injection intramusculaire dans la cuisse." } }, { "@type": "Question", "name": "Quelle est la posologie standard d'épinéphrine ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "La posologie standard pour l'anaphylaxie est de 0,3 à 0,5 mg pour les adultes, par injection." } }, { "@type": "Question", "name": "Quand répéter l'injection d'épinéphrine ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "L'injection peut être répétée toutes les 5 à 15 minutes si les symptômes persistent." } }, { "@type": "Question", "name": "Quels traitements alternatifs à l'épinéphrine existent ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Des antihistaminiques et des corticostéroïdes peuvent être utilisés en complément, mais pas en remplacement." } }, { "@type": "Question", "name": "Comment l'épinéphrine aide-t-elle en cas d'asthme ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "L'épinéphrine dilate les voies respiratoires, facilitant la respiration lors d'une crise d'asthme." } }, { "@type": "Question", "name": "Quelles complications peuvent survenir après une injection d'épinéphrine ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Des complications peuvent inclure des arythmies cardiaques, des douleurs thoraciques ou des réactions locales." } }, { "@type": "Question", "name": "Quels risques sont associés à une surdose d'épinéphrine ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Une surdose peut entraîner des complications graves comme des crises cardiaques ou des AVC." } }, { "@type": "Question", "name": "Comment gérer les effets secondaires de l'épinéphrine ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Surveillez les symptômes et consultez un médecin si les effets secondaires persistent ou s'aggravent." } }, { "@type": "Question", "name": "Quelles sont les conséquences d'une anaphylaxie non traitée ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Une anaphylaxie non traitée peut entraîner un choc, une perte de conscience et même la mort." } }, { "@type": "Question", "name": "Quels sont les effets à long terme d'une anaphylaxie ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Les effets à long terme peuvent inclure des troubles anxieux et des modifications du mode de vie." } }, { "@type": "Question", "name": "Quels sont les facteurs de risque d'anaphylaxie ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent des antécédents d'allergies, des maladies respiratoires et des expositions répétées." } }, { "@type": "Question", "name": "Comment l'âge influence-t-il le risque d'anaphylaxie ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Les jeunes enfants et les personnes âgées sont plus à risque en raison de systèmes immunitaires fragiles." } }, { "@type": "Question", "name": "Quels médicaments augmentent le risque d'allergies ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Certains antibiotiques et anesthésiques peuvent augmenter le risque de réactions allergiques." } }, { "@type": "Question", "name": "Comment les allergies alimentaires influencent-elles le risque ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Les allergies alimentaires, comme celles aux arachides, augmentent le risque d'anaphylaxie." } }, { "@type": "Question", "name": "Quels facteurs environnementaux peuvent aggraver les allergies ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "La pollution, le pollen et les acariens peuvent exacerber les symptômes allergiques." } } ] } ] }

Sources (7143 au total)

Loss of heterozygosity leading to incorrect HLA typing for platelet-transfusion refractory patient.

Management of platelet-transfusion refractory (PR) patients due to anti-HLA antibodies includes the provision of HLA-matched (HLAm) platelets (PLT) or PLTs that are negative for HLA antigens correspon... HLA typing was performed by three methods: (1) Real-time PCR; (2) Sequence-specific oligonucleotide (SSO) typing test; and (3) Next-Generation Sequencing (NGS). Cytogenomic SNP microarray was utilized... A 30-year-old female with newly diagnosed acute myelogenous leukemia was found to be PR secondary to HLA sensitization. A peripheral blood (PB) sample, containing 93% myeloid blast cells, was sent for... In hematologic patients with high tumor burden, HLA homozygosity should be viewed with suspicion for potential LOH. Therefore, HLA testing should be repeated, preferably with a non-hematological sourc...

Digital polymerase chain reaction to monitor platelet transfusions in cardiac surgery patients.

Corrected count increment (CCI) measurements monitor the effectiveness of platelet transfusions in haemato-oncology, but they usually fail in patients undergoing cardiac surgery. We investigated wheth... Leukocyte-free, platelet-rich plasma was prepared from patients' blood to measure platelet counts based on patient-/donor-specific SNPs by digital PCR after DNA extraction. Platelet counts in samples ... The digital PCR of the seven SNPs reliably quantified levels ≥0.6 G/L platelets, in good agreement with flow cytometry and without interference by other SNPs or by platelet activation. A mean 24-h CCI... PCR of mitochondrial SNPs offers a tool to assess the survival of platelets from apheresis concentrates in cardiac surgery patients to facilitate the implementation of improved transfusion strategies....

Changes in inflammatory responses and autophagy during apheresis platelet preservation and their correlation with platelet transfusion refractoriness in patients with acute lymphoblastic leukemia.

Acute lymphoblastic leukemia (ALL) is a common hematopoietic malignancy, and platelet transfusion plays a crucial role in its treatment. This study aimed to investigate the changes in inflammatory res...

Prophylactic platelet transfusion response in critically ill patients: a prospective multicentre observational study.

Response to prophylactic platelet transfusion is suspected to be inconsistent in critically ill patients questioning how to optimize transfusion practices. This study aimed to describe prophylactic pl... This prospective multicentre observational study recruited patients who received at least one prophylactic platelet transfusion in one of the nine participating intensive care units for a period up to... Poor platelet transfusion response occurred in 349 of the 472 (73.9%) prophylactic platelet transfusions and in 141/181 (77.9%) patients. The mixed-effect model identified haemoglobin at ICU admission... In this study of critically ill patients, of whom more than half had bone marrow failure, almost three quarters of prophylactic platelet transfusions led to suboptimal platelet increment measured 18 t...

Comparative risk of pulmonary adverse events with transfusion of pathogen reduced and conventional platelet components.

Platelet transfusion carries risk of transfusion-transmitted infection (TTI). Pathogen reduction of platelet components (PRPC) is designed to reduce TTI. Pulmonary adverse events (AEs), including tran... An open label, sequential cohort study of transfusion-dependent hematology-oncology patients was conducted to compare pulmonary safety of PRPC with conventional PC (CPC). The primary outcome was the i... By modified intent-to-treat (mITT), 1068 patients received 5277 PRPC and 1223 patients received 5487 CPC. The cohorts had similar demographics, primary disease, and primary therapy. PRPC were non-infe... PRPC demonstrated reduced TEAMV with no excess treatment-related pulmonary morbidity....

Postoperative bleeding after dentoalveolar surgery in patients with thrombocytopenia-are prophylactic platelet transfusions necessary?

Benefits of prophylactic platelet (PLT) transfusion before dentoalveolar surgery are unclear. This study investigated the effect of prophylactic PLT transfusions on the incidence of postoperative blee... The cohort in this retrospective study comprised 83 patients with thrombocytopenia ≤ 75*10... POB events were observed in 5 of 83 patients (6.0%) who had a median PLT count of 35*10... Our data indicate that prophylactic PLT transfusions in thrombocytopenic patients with PLT counts ≤ 75*10...

Thrombocytopenia and platelet transfusions in ICU patients: an international inception cohort study (PLOT-ICU).

Thrombocytopenia (platelet count < 150 × 10... We conducted a prospective cohort study in adult ICU patients in 52 ICUs across 10 countries. We assessed frequencies of thrombocytopenia, use of platelet transfusions and clinical outcomes including ... We analysed 1166 ICU patients; the median age was 63 years and 39.5% were female. Overall, 43.2% (95% confidence interval (CI) 40.4-46.1) had thrombocytopenia; 23.4% (20-26) had thrombocytopenia at IC... Thrombocytopenia occurred in 43% of critically ill patients and was associated with worse outcomes including increased mortality. Platelet transfusions were given to 23% of patients with thrombocytope...