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Utvärdering av analys av pankreas-specifikt lipas hos hund och katt med Vcheck V200: en prospektiv komparativ studie
Kristianstad University, Faculty of Natural Sciences.
2021 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Evaluation of analysis of pancreas-specific Lipase in dogs and cats with Vcheck V200 : a prospective comparative study (English)
Abstract [sv]

Pankreatit anses vara en vanligt förekommande sjukdom hos hundar och katter och kan diagnostiseras genom mätningar av koncentrationen Canine Pancreas-specific Lipase (cPL) respektive Feline Pancreas-specific Lipase (fPL) i serum. Utifrån dessa koncentrationer graderas patienten enligt normalvärde, gråzon eller indikation på pankreatit. Golden standardmetoden för att analysera cPL/fPL är Spec cPL respektive Spec fPL. Nya metoder har utvecklats för kvantitativ mätning av pankreas-specifik lipas såsom Vcheck V200, ett instrument, som analyserar cPL/fPL med en fluorescerande immunoassay. Syftet med studien var att utvärdera analys av cPL/fPL på Vcheck V200 samt jämföra resultatet från detta instrument med värdena från ett referenslaboratorium i Tyskland för att se om det fanns en signifikant skillnad mellan metoderna. Koncentrationen cPL i hundserum (n=37) och koncentrationen fPL i kattserum (n=29) analyserades på Vcheck V200. Dessa prover skickades även till referenslaboratoriet där analysen Spec cPL respektive Spec fPL utfördes. Spridningen var stor kring bias i Bland-Altman diagram för både cPL och fPL och jämförelsen mellan metoderna för de specifika koncentrationerna av cPL/fPL bedömdes vara statistiskt signifikant (p<0,05). 27% av hundproverna graderas olika enligt de båda metoderna och skillnaden var signifikant (p<0,05). 24% av kattproverna graderades olika men skillnaden var inte signifikant (p=0,257). Studien tyder på att jämförelsen mellan de båda metoderna var signifikant förutom vid graderingen av kattproverna. Beaktande detta och det faktum att kvalitetssäkringen brister vid analys av fPL på grund av avsaknad av kontroller kan i dagsläget inte cPL/fPL på Vcheck V200 ersätta den nuvarande golden standardmetoden, trots att ingen signifikant skillnad sågs vid gradering av kattprover.

Abstract [en]

Pancreatitis is a common disease in canine and felines and can be diagnosed by measuring the concentration of Canine Pancreas-specific Lipase (cPL) or Feline Pancreas-specific Lipase (fPL) in serum. Based on the concentration of cPL/fPL, the patient is then classified in different diagnostic categories (normal value, gray zone or indication of pancreatitis). Spec cPL and Spec fPL is currently the golden standard method for analysis of cPL and fPL. New methods have been developed for the quantitative measurement of pancreatic lipases. Vcheck V200, being one example, utilizing a fluorescent immunoassay for quantification of the lipase. The aim of this study was to evaluate the cPL and fPL analysis on the Vcheck V200 and to examine if there was a significant difference (p≤0,05) when comparing the result from Vcheck V200 with the results from a reference laboratory. The concentration of cPL (n=37) and fPL (n=29) in serum from canine or felines were analyzed using Vcheck V200. The samples were also sent to the reference laboratory where Spec cPL and Spec cPL were performed. A Bland-Altman plot comparison between the two methods showed a large spread for both analysis of cPL and fPL. Comparison of the specific values for analysis of cPL and fPL between the two methods revealed a significant difference (p<0,05). 27% of the dog samples were categorized differently according to the two methods and this difference was significant (p<0,05). 24% of the cat samples were categorized differently and no significant difference were observed (p=0,257). This study indicates that the difference between the two methods was significant, besides the classification of cat samples. Considering this and the lack of quality assurance regarding analysis of fPL due to lack of controls, the cPL/fPL analysis on Vcheck V200 cannot replace the Spec cPL or Spec fPL at present.

Place, publisher, year, edition, pages
2021. , p. 29
Keywords [en]
Vcheck cPL, Vcheck fPL, Evaluation, Spec cPL, Spec fPL, Comparison, Canine Pancreas-specific Lipase, Feline Pancreas-specific Lipase
Keywords [sv]
Vcheck cPL, Vcheck fPL, Utvärdering, Spec cPL, Spec fPL, Jämförelse, Canine Pancreas-specific Lipase, Feline Pancreas-specific Lipase
National Category
Analytical Chemistry Clinical Laboratory Medicine Veterinary Science
Identifiers
URN: urn:nbn:se:hkr:diva-22140OAI: oai:DiVA.org:hkr-22140DiVA, id: diva2:1577049
Subject / course
Biomedical Laboratory Science; Biomedical Laboratory Science
Educational program
Bachelor of Science in Biomedical Laboratory Science; Bachelor of Science in Biomedical Laboratory Science
Supervisors
Examiners
Available from: 2021-07-02 Created: 2021-07-01 Last updated: 2021-07-30Bibliographically approved

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Utvärdering av analys av pankreas-specifikt lipas hos hund och katt med Vcheck V200: en prospektiv komparativ studie(757 kB)745 downloads
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