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Jämförelse mellan konventionell utstryksmetod och vätskebaserad ThinPrepmetod vid preparering av etanolfixerade exsudat
Jönköping University, School of Health and Welfare, HHJ, Dep. of Natural Science and Biomedicine.
Jönköping University, School of Health and Welfare, HHJ, Dep. of Natural Science and Biomedicine.
2018 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Comparison of conventional smears and liquid-based ThinPrep preparations of effusions fixated with ethanol (English)
Abstract [sv]

Vid cytologisk bedömning av celler i exsudat kan olika metoder användas vid preparering. Vid konventionell utstryksmetod stryks provet ut manuellt på objektglas medan vätskebaserad ThinPrepmetod preparerar provet i en automatiserad process. Studiens syfte var att jämföra konventionell utstryksmetod och vätskebaserad ThinPrepmetod med tillsats av ättiksyra vid preparering av etanolfixerade exsudat. I studien användes totalt 34 prover av pleuravätska och ascites. Proverna preparerades med konventionell utstryksmetod och två varianter av ThinPrepmetod, ThinPrepmetod 1 och ThinPrepmetod 2. Preparaten bedömdes av två cytodiagnostiker utifrån fem kriterier; cellförekomst, förekomst av inflammatoriska celler, cellmorfologi, bakgrundsmaterial och förekomst av atypiska eller maligna celler. Resultaten visade på att ThinPrepmetod 2 gav likvärdiga, och i vissa avseenden bättre, resultat än konventionell utstryksmetod. ThinPrepmetoden har generellt fler fördelar jämfört med konventionell utstryksmetod, framförallt innebär den en tidsbesparing för de som bedömer preparaten vilket också gynnar patienter. En mer omfattande studie rekommenderas för att konfirmera resultaten i denna studie.

Abstract [en]

Preparation of effusions for cytological evaluation can be performed with different methods. Conventional smears are performed by spreading the sample directly onto a slide while liquid-based ThinPrep method prepares the sample in an automated process. The aim of this study was to compare conventional smears with liquid-based ThinPrep preparation, with additional acetic acid, of effusions fixated with ethanol. A total of 34 samples of pleural effusions and ascites were included. The samples were prepared with conventional smears and two versions of the ThinPrep method, ThinPrep method 1 and ThinPrep method 2. The preparations were examined by two cytotechnologists based on five criteria; occurrence of cells, occurrence of inflammatory cells, cell morphology, background material and the presence of atypical or malignant cells. The results showed that ThinPrep method 2 obtained equivalent and, in some aspects, even better results compared to conventional smears. In general, the ThinPrep method has several advantages compared to the conventional smears. In particular, it is timesaving when examining the slides, which also benefits the patients. A more comprehensive study is recommended to confirm the results of this study.

Place, publisher, year, edition, pages
2018. , p. 25
Keywords [en]
Ascites; Cytology; Pleura effusion; ThinPrep®; Acetic acid
Keywords [sv]
Ascites; Cytologi; Pleuravätska; ThinPrep®; Ättiksyra
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:hj:diva-40077ISRN: U-HHJ-BLA-1-20180068OAI: oai:DiVA.org:hj-40077DiVA, id: diva2:1216001
Subject / course
HHJ, Biomedical Laboratory Science
Supervisors
Examiners
Available from: 2018-06-21 Created: 2018-06-10 Last updated: 2018-06-21Bibliographically approved

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