快速抗原检测方法的不敏感性和用于诊断链球菌喉炎的单个血液亚格板培养
D L Wegner1, D L Witte, R D Schrantz
1Ottumwa Regional Health Foundation, IA 52501.
JAMA
|February 5, 1992
概括
双板培养方法是诊断A组 estreptococcal 喉炎的最敏感的方法,与抗原检测测试和单板培养不同,这些测试往往不准确. 这确保了适当的治疗,并防止并发症.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 临床诊断 临床诊断 临床诊断
背景情况:
- 甲型链球菌喉炎仍然是一个常见的感染,需要准确的诊断.
- 目前的诊断方法,包括抗原检测测试和单片培养,可能缺乏足够的灵敏度.
- 由于诊断不准确而导致治疗不足的可能性可能导致严重的后果.
研究的目的:
- 为了比较5个A组 estreptococcal抗原检测系统和一个单一的血液亚格板培养与两板培养方法的诊断灵敏度.
- 在社区环境中评估链球菌喉炎的不同诊断方法的有效性.
主要方法:
- 一项涉及755名门诊患者的比较研究,怀疑他们患有链球菌喉炎.
- 每位患者采集了两个喉抽样:一个用于抗原检测,一个用于双培养 (有氧血和无氧三甲胺-硫甲醇血板).
- 来自抗原检测测试和单片培养的结果与黄金标准的两片培养方法进行了比较.
主要成果:
- 两盘培养方法确定了100%的A组链球菌喉炎病例.
- 单个有氧血亚格板培养物显示了72% (2天) 和58% (1天) 的灵敏度.
- 抗原检测测试显示出低灵敏度 (31%-50%) 和可变的假阳性率 (0%-28%),灵敏度随着细菌殖民地数量下降而下降.
结论:
- 单个血液亚格板培养和抗原检测测试对于诊断链球菌喉炎的敏感性不足.
- 两盘培养方法的高灵敏度使其成为准确诊断的推标准.
- 诊断准确度不足可能导致治疗不足和潜在的免疫学或其他后果.
更多相关视频
07:08A Rapid, Multiplex Dual Reporter IgG and IgM SARS-CoV-2 Neutralization Assay for a Multiplexed Bead-Based Flow Analysis System
Published on: April 6, 2021
06:11Rapid Detection of Bacterial Pathogens Causing Lower Respiratory Tract Infections via Microfluidic-Chip-Based Loop-Mediated Isothermal Amplification
Published on: March 29, 2024
相关概念视频
Acute Pharyngitis
Introduction
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
Urine Studies II: Urine Culture and Sensitivity Test
A urine culture and sensitivity test is a diagnostic procedure used to identify urinary tract bacterial infections and determine the most effective antibiotics for treatment. This test is generally preferred when a patient shows manifestations of a urinary tract infection, such as frequent or painful urination, cloudy or foul-smelling urine, or lower abdominal pain.Purpose of the TestThe primary goals of a urine culture and sensitivity test are to:Determine the specific bacteria causing the...
Rapid Identification of Pathogens
MALDI-TOF MS has transformed clinical microbiology by offering a rapid and reliable method for pathogen identification. The traditional approach to microbial identification typically involves time-consuming culture techniques and biochemical tests, which can delay the initiation of appropriate antimicrobial therapy. MALDI-TOF MS avoids these delays by using characteristic ribosomal protein mass patterns of microbial cells, enabling accurate species-level identification within minutes.Principle...
Streptococcal Pharyngitis
Streptococcal pharyngitis, commonly known as “strep throat,” is an acute infection of the oropharyngeal tissues caused by the Gram‑positive Group A Streptococcus (Streptococcus pyogenes). Transmission occurs primarily through respiratory droplets expelled during coughing, sneezing, or talking.Mechanisms of Host Entry and Immune EvasionUpon entering the host, S. pyogenes adheres to the mucosal epithelial cells of the pharynx via surface proteins, notably lipoteichoic acid and the antiphagocytic...
