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为探讨PCR在小儿支原体肺炎诊断中的实际应用价值,对47例临床疑诊支原体肺炎的病儿做了咽拭子PCR-MP测定,同时做了血冷凝集试验(CAT)。结果:PCR-MP阳性21例,真阳性15例,假阴性工例,敏感度为938%。假阳性6例,占检测标本的12.8%,占检测报告阳性总数的28.6%,CAT阳性12例。确诊支原体肺炎16例,其中15例经PCR早期确诊。结论:PCR-MP测定有利于支原体肺炎的早期诊断,但存在假阳性及假阴性。结合临床特点应用PCR-MP将有助于提高支原体肺炎早期确诊率。
In order to explore the practical value of PCR in the diagnosis of pediatric mycoplasma pneumonia, throat swab PCR-MP assay was performed in 47 cases of suspected mycoplasmal pneumonia in children with clinical isolates, and blood coagulation test (CAT) was also performed. Results: 21 cases were positive by PCR-MP, 15 cases were true positive and false negative cases were 938%. False positive in 6 cases, accounting for 12.8% of the test specimens, accounting for 28.6% of the total positive test report, CAT positive in 12 cases. Mycoplasma pneumonia was diagnosed in 16 cases, of which 15 cases were diagnosed early by PCR. Conclusion: PCR-MP assay is good for mycoplasma pneumonia early diagnosis, but there are false positives and false negatives. Combined with clinical features of PCR-MP will help to improve the early diagnosis of mycoplasma pneumonia.