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Local Anesthetics: Adverse Effects01:12

Local Anesthetics: Adverse Effects

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While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
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Allergic Reactions02:06

Allergic Reactions

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Overview
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Allergic Drug Reactions01:27

Allergic Drug Reactions

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Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing...
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Adrenergic Antagonists: ɑ and β-Receptor Blockers01:31

Adrenergic Antagonists: ɑ and β-Receptor Blockers

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Third-generation β-blockers, such as labetalol and carvedilol, represent a significant advancement in managing cardiovascular conditions. Unlike conventional β-blockers, which can induce peripheral vasoconstriction, third-generation drugs block α1 adrenoceptors. This promotes vasodilation through several mechanisms, such as increased nitric oxide production, inhibition of calcium ion entry, opening of potassium ion channels, and antioxidant action. Labetalol, for instance, is...
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Antiasthma Drugs: β2-Adrenoceptor Agonists01:25

Antiasthma Drugs: β2-Adrenoceptor Agonists

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Bronchodilators are critical in managing asthma, a chronic respiratory condition characterized by airway constriction due to inflammation and hyper-reactivity. Specifically, bronchodilators ease this constriction by relaxing the bronchial muscles, facilitating easier breathing.
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Adrenergic Receptors: β Subtype01:26

Adrenergic Receptors: β Subtype

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β-adrenoceptors have varied sensitivities towards adrenaline, noradrenaline, and isoprenaline. The order of agonist potency is as follows:
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相关实验视频

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Basophil Activation Test for Allergy Diagnosis
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缓解β-乳酸过敏的表现

Gustavo-Jorge Molina-Molina1, Diana Rocío Garnica Velandia2,3, Blanca Andrés-López1

  • 1Allergy Department, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, Spain.

Frontiers in pharmacology
|July 12, 2024
PubMed
概括
此摘要是机器生成的。

许多在电子病历 (EMR) 中标记为beta-lactam (BL) 抗生素过敏的患者被误诊. 一项研究发现,在诊断评估后,大约75%的β-乳酸过敏标签是假的.

关键词:
这是一种β-lactam.删除标签的方法药物挑测试试验 药物挑测试电子医疗记录 电子医疗记录青素是一种青素.皮肤测试 皮肤测试

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科学领域:

  • 临床免疫学临床免疫学
  • 药物监督 药物监督 药物监督
  • 内部医学 内部医学

背景情况:

  • 对β-乳酸胺 (BL) 抗生素过敏是一种常见的药物过敏.
  • 电子病历 (EMR) 经常包含未经验证的BL过敏标签.
  • 准确的过敏评估对于患者的安全和适当的治疗至关重要.

研究的目的:

  • 在EMR中识别BL过敏标签的患者.
  • 为了确定虚假阳性BL过敏标签的比例.
  • 通过诊断评估来确认或排除BL过敏.

主要方法:

  • 一项多中心前性研究,涉及BL过敏标签在EMR中的患者.
  • 从EMR和患者病史中收集人口统计,临床和反应数据.
  • 诊断评估包括皮肤测试 (ST) 和药物诱导测试 (DPT).

主要成果:

  • 249名患者完成了这项研究,64.3%是女性,平均年龄为57岁.
  • 青素,阿莫西西林/克劳兰酸和阿莫西西林是最常见的BL过敏标签.
  • 在诊断工作后,74.7%的患者被发现对BL抗生素不过敏.

结论:

  • 在EMR中标记为BL过敏的绝大多数患者的诊断是错误的.
  • 虚假BL过敏标签的流行率很高,类似于之前的研究 (75%-80%).
  • 诊断评估对于纠正EMR中不准确的过敏信息至关重要.