B Van Meensel, E Van Wijngaerden, J Verhaegen, W E Peetermans, M L Lontie, C Ripert
{"title":"返国旅行者血吸虫病和片山综合征的实验室诊断。","authors":"B Van Meensel, E Van Wijngaerden, J Verhaegen, W E Peetermans, M L Lontie, C Ripert","doi":"10.1179/2295333714Y.0000000039","DOIUrl":null,"url":null,"abstract":"<p><p>The gold standard for laboratory diagnosis of schistosomiasis is the presence of typical eggs in stool or urine. The laboratory diagnosis of schistosomiasis and Katayama syndrome in returning travellers is difficult because the number of excreted eggs is often very limited. In early infections and in patients with only a few contacts with contaminated water, the total number of parasites, migrating larvae or schistosomulae, and adult worms, is very low. Eggs can only be found in faeces or urine when there is at least one pair of adult worms at the final location. The number of parasites increases as a function of the number of contacts with infected water. The exact latency between contamination and egg production is unknown. It is estimated that excretion of eggs starts after 40-50 days. The specific diagnosis of early schistosomiasis and Katayama fever relies essentially on serologic tests or preferably on PCR (if available). These assays are much more sensitive (up to four times) in the early phase of schistosomiasis than microscopic examination for typical eggs. Eosinophilia (sometimes exceeding 50%) is often present in patients with acute schistosomiasis (Katayama fever), but may be limited or absent in late fibrotic manifestations of the disease. </p>","PeriodicalId":48865,"journal":{"name":"Acta Clinica Belgica","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1179/2295333714Y.0000000039","citationCount":"5","resultStr":"{\"title\":\"Laboratory diagnosis of schistosomiasis and Katayama syndrome in returning travellers.\",\"authors\":\"B Van Meensel, E Van Wijngaerden, J Verhaegen, W E Peetermans, M L Lontie, C Ripert\",\"doi\":\"10.1179/2295333714Y.0000000039\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The gold standard for laboratory diagnosis of schistosomiasis is the presence of typical eggs in stool or urine. The laboratory diagnosis of schistosomiasis and Katayama syndrome in returning travellers is difficult because the number of excreted eggs is often very limited. In early infections and in patients with only a few contacts with contaminated water, the total number of parasites, migrating larvae or schistosomulae, and adult worms, is very low. Eggs can only be found in faeces or urine when there is at least one pair of adult worms at the final location. The number of parasites increases as a function of the number of contacts with infected water. The exact latency between contamination and egg production is unknown. It is estimated that excretion of eggs starts after 40-50 days. The specific diagnosis of early schistosomiasis and Katayama fever relies essentially on serologic tests or preferably on PCR (if available). These assays are much more sensitive (up to four times) in the early phase of schistosomiasis than microscopic examination for typical eggs. Eosinophilia (sometimes exceeding 50%) is often present in patients with acute schistosomiasis (Katayama fever), but may be limited or absent in late fibrotic manifestations of the disease. </p>\",\"PeriodicalId\":48865,\"journal\":{\"name\":\"Acta Clinica Belgica\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2014-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1179/2295333714Y.0000000039\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta Clinica Belgica\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1179/2295333714Y.0000000039\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2014/6/10 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"MEDICINE, GENERAL & INTERNAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Clinica Belgica","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1179/2295333714Y.0000000039","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2014/6/10 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"MEDICINE, GENERAL & INTERNAL","Score":null,"Total":0}
Laboratory diagnosis of schistosomiasis and Katayama syndrome in returning travellers.
The gold standard for laboratory diagnosis of schistosomiasis is the presence of typical eggs in stool or urine. The laboratory diagnosis of schistosomiasis and Katayama syndrome in returning travellers is difficult because the number of excreted eggs is often very limited. In early infections and in patients with only a few contacts with contaminated water, the total number of parasites, migrating larvae or schistosomulae, and adult worms, is very low. Eggs can only be found in faeces or urine when there is at least one pair of adult worms at the final location. The number of parasites increases as a function of the number of contacts with infected water. The exact latency between contamination and egg production is unknown. It is estimated that excretion of eggs starts after 40-50 days. The specific diagnosis of early schistosomiasis and Katayama fever relies essentially on serologic tests or preferably on PCR (if available). These assays are much more sensitive (up to four times) in the early phase of schistosomiasis than microscopic examination for typical eggs. Eosinophilia (sometimes exceeding 50%) is often present in patients with acute schistosomiasis (Katayama fever), but may be limited or absent in late fibrotic manifestations of the disease.
期刊介绍:
Acta Clinica Belgica: International Journal of Clinical and Laboratory Medicine primarily publishes papers on clinical medicine, clinical chemistry, pathology and molecular biology, provided they describe results which contribute to our understanding of clinical problems or describe new methods applicable to clinical investigation. Readership includes physicians, pathologists, pharmacists and physicians working in non-academic and academic hospitals, practicing internal medicine and its subspecialties.