Immunologic Tests

免疫学检查
  • 文章类型: Consensus Development Conference
    随着患病率的增加,过敏风险已成为重要的公共卫生问题。建议在生命的前六个月进行纯母乳喂养,但是这个建议在世界许多地方都没有得到遵守,包括中东地区,使婴儿有发生过敏性致敏和疾病的风险。当母乳喂养不可能或不充分时,部分水解乳清配方(pHF-W)已证明有预防过敏的好处,主要是特应性湿疹,有遗传风险的儿童。因此,除了刺激母乳喂养,早期识别有发生特应性疾病风险的婴儿,并用经临床证实的pHF-W配方代替基于完整牛乳蛋白(CMP)的常用配方,对于预防过敏至关重要.如果孩子受到牛奶蛋白过敏(CMPA)的影响,专家指南推荐广泛水解配方(eHF),或氨基酸配方(AAF)在严重症状的情况下。中东地区有一种独特的做法,即利用pHF-W作为eHF或AAF与完整的CMP之间的降压,这可能是有益的。该地区具有不同的临床实践水平,由于过敏性疾病可能会被具有不同专业知识水平的不同专业的医疗保健专业人员看到,该地区本身的预防和治疗方法存在很大差异。在一次共识会议上,所有与会者都讨论并一致批准了一种新方法,介绍pHF-W在CMPA治疗管理中的应用。这种新颖的方法可能会在全球范围内受益。
    Allergy risk has become a significant public health issue with increasing prevalence. Exclusive breastfeeding is recommended for the first six months of life, but this recommendation is poorly adhered to in many parts of the world, including the Middle-East region, putting infants at risk of developing allergic sensitization and disorders. When breastfeeding is not possible or not adequate, a partially hydrolyzed whey formula (pHF-W) has shown proven benefits of preventing allergy, mainly atopic eczema, in children with a genetic risk. Therefore, besides stimulating breastfeeding, early identification of infants at risk for developing atopic disease and replacing commonly used formula based on intact cow milk protein (CMP) with a clinically proven pHF-W formula is of paramount importance for allergy prevention. If the child is affected by cow\'s milk protein allergy (CMPA), expert guidelines recommend extensively hydrolyzed formula (eHF), or an amino acid formula (AAF) in case of severe symptoms. The Middle-East region has a unique practice of utilizing pHF-W as a step-down between eHF or AAF and intact CMP, which could be of benefit. The region is very heterogeneous with different levels of clinical practice, and as allergic disorders may be seen by healthcare professionals of different specialties with different levels of expertise, there is a great variability in preventive and treatment approaches within the region itself. During a consensus meeting, a new approach was discussed and unanimously approved by all participants, introducing the use of pHF-W in the therapeutic management of CMPA. This novel approach could be of worldwide benefit.
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  • 文章类型: Journal Article
    欧洲临床微生物学和传染病学会,欧洲医学真菌学联合会和欧洲呼吸学会联合临床指南重点关注曲霉病的诊断和治疗.在众多的建议中,这里总结了几个。强烈建议怀疑肺部侵袭性曲霉病(IA)的患者进行胸部计算机断层扫描以及支气管镜检查和支气管肺泡灌洗(BAL)。为了诊断,直接显微镜,优选使用荧光增白剂,强烈建议组织病理学和文化。建议将血清和BAL半乳甘露聚糖测定作为诊断IA的标志物。PCR应与其他诊断测试一起考虑。强烈建议对所有临床相关的曲霉分离株进行物种复杂水平的病原体鉴定;在当代监测计划中发现耐药性的地区,应对患有侵袭性疾病的患者进行抗真菌药敏试验。伊沙康康唑和伏立康唑是首选的一线治疗肺部IA的药物,而脂质体两性霉素B得到适度支持。不建议将抗真菌药物组合作为主要治疗选择。对于接受泊沙康唑混悬液或任何形式的伏立康唑治疗IA的患者,强烈建议进行治疗药物监测。在难治性疾病中,在考虑逆转诱发因素的个性化方法中,转换药物类别和手术干预也强烈建议。对于接受诱导化疗的急性骨髓性白血病或骨髓增生异常综合征患者,强烈建议使用泊沙康唑进行初级预防。强烈建议高危患者进行二级预防。我们强烈建议基于临床改善的治疗持续时间,免疫抑制程度和影像学反应。
    The European Society for Clinical Microbiology and Infectious Diseases, the European Confederation of Medical Mycology and the European Respiratory Society Joint Clinical Guidelines focus on diagnosis and management of aspergillosis. Of the numerous recommendations, a few are summarized here. Chest computed tomography as well as bronchoscopy with bronchoalveolar lavage (BAL) in patients with suspicion of pulmonary invasive aspergillosis (IA) are strongly recommended. For diagnosis, direct microscopy, preferably using optical brighteners, histopathology and culture are strongly recommended. Serum and BAL galactomannan measures are recommended as markers for the diagnosis of IA. PCR should be considered in conjunction with other diagnostic tests. Pathogen identification to species complex level is strongly recommended for all clinically relevant Aspergillus isolates; antifungal susceptibility testing should be performed in patients with invasive disease in regions with resistance found in contemporary surveillance programmes. Isavuconazole and voriconazole are the preferred agents for first-line treatment of pulmonary IA, whereas liposomal amphotericin B is moderately supported. Combinations of antifungals as primary treatment options are not recommended. Therapeutic drug monitoring is strongly recommended for patients receiving posaconazole suspension or any form of voriconazole for IA treatment, and in refractory disease, where a personalized approach considering reversal of predisposing factors, switching drug class and surgical intervention is also strongly recommended. Primary prophylaxis with posaconazole is strongly recommended in patients with acute myelogenous leukaemia or myelodysplastic syndrome receiving induction chemotherapy. Secondary prophylaxis is strongly recommended in high-risk patients. We strongly recommend treatment duration based on clinical improvement, degree of immunosuppression and response on imaging.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    BACKGROUND: Excessive antibiotics use increases the risk of resistance. Previous studies have shown that the Centor score combined with Rapid Antigen Detection Test (RADT) for Group A Streptococci can reduce unnecessary antibiotic prescribing in patients with sore throat. According to the former Swedish guidelines RADT was recommended with 2-4 Centor criteria present and antibiotics were recommended if the test was positive. C- reactive protein (CRP) was not recommended for sore throats. Inappropriate use of RADT and CRP has been reported in several studies.
    METHODS: From a larger project 16 general practitioners (GPs) who stated management of sore throats not according to the guidelines were identified. Half-hour long semi-structured interviews were conducted. The topics were the management of sore throats and the use of near-patient tests. Qualitative content analysis was used.
    RESULTS: The use of the near-patient test interplayed with the clinical assessment and the perception that all infections caused by bacteria should be treated with antibiotics. The GPs expressed a belief that the clinical picture was sufficient for diagnosis in typical cases. RADT was not believed to be relevant since it detects only one bacterium, while CRP was considered as a reliable numerical measure of bacterial infection.
    CONCLUSIONS: Inappropriate use of near-patient test can partly be understood as remnants of outdated knowledge. When new guidelines are introduced the differences between them and the former need to be discussed more explicitly.
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  • 文章类型: Journal Article
    The number of genetically defined Primary Immunodeficiency Diseases (PID) has increased exponentially, especially in the past decade. The biennial classification published by the IUIS PID expert committee is therefore quickly expanding, providing valuable information regarding the disease-causing genotypes, the immunological anomalies, and the associated clinical features of PIDs. These are grouped in eight, somewhat overlapping, categories of immune dysfunction. However, based on this immunological classification, the diagnosis of a specific PID from the clinician\'s observation of an individual clinical and/or immunological phenotype remains difficult, especially for non-PID specialists. The purpose of this work is to suggest a phenotypic classification that forms the basis for diagnostic trees, leading the physician to particular groups of PIDs, starting from clinical features and combining routine immunological investigations along the way. We present 8 colored diagnostic figures that correspond to the 8 PID groups in the IUIS Classification, including all the PIDs cited in the 2011 update of the IUIS classification and most of those reported since.
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  • 文章类型: Journal Article
    Colorectal cancer (CRC) screening has been demonstrated to reduce both incidence and mortality of CRC. There are several different screening options, each with potential benefits and some limitations. Fecal blood tests are primarily early cancer detection tests, which have been shown to reduce CRC mortality. Structural exams of the colon (flexible sigmoidoscopy, colonoscopy and imaging) may identify cancer precursor lesions (adenomas) and early cancer. There is evidence that detection and removal of adenomas may prevent many cancers. New forms of screening using stool DNA, capsule endoscopy and serum testing for genetic mutations are still in evolution, though proof-of-principle studies have been published.
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  • 文章类型: Consensus Development Conference
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