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Title:Primerjava občutljivosti urinskih testov UBC ELISA in BTA Trak pri odkrivanju ponovitev tumorjev mehurja
Authors:ID Hajdinjak, Tine (Author)
ID Modrič, Evgenija (Author)
Files:.pdf 05.pdf (504,21 KB)
MD5: 13492E811CD2ADCD3A5C5E0B64AE44A0
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:MF - Faculty of Medicine
Abstract:Purpose: To compare the sensitivity of the stablished BTA Trak[TM] test with the newer UBC ELISA[TM] test for the detection of bladder tumor recurrence. Methods: Urine samples from 63 patients were collected prior to cystoscopy. In cases of positive cystoscopy findings, patients were scheduled for TUR and the histologic findings were correlated with the urine test results. Results: There are a statistically significant increase in median UBC value with increasing tumor grade. Median UBC values (microg/L) for tumor stages were: 22.1, 47.5, 95.7 and >150 for pTa, pT1, pT2/3 and CIS, respectively. The overall sensitivity of the UBC and BTA was 62 % and 90 % (p=0.0049). Comparing different tumor stages, the sensitivity for the UBC vs. BTA was 52 % vs. 86 % (p=0.022) in pTa, 56 % vs. 100 % (p=0.039) in pT1, 83 % for both tests in pT2/3 and100 % for both in CIS. In low grade tumors, the sensitivity of the UBC vs. BTA was 47 % vs. 84 % (p=0.022); in high grade tumors it was 75 % vs. 95 % (NS p=0.085). The combination of both tests did not increase sensitivity over BTA alone. Overall specificity for the UBC was 71 % and for the BTA 50 % (NS). Overall test accuracy for the UBC 65 % was and for the BTA 75 % (NS). Conclusion: The UBC ELISA[TM] in its present form did not have better sensitivity than the BTA Trak[TM] test because of its lower validity in low grade/stage tumors.
Keywords:rak mehurja, tumorski označevalci, urin, občutljivost, specifičnost, napovedna vrednost
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2009
Year of publishing:2009
Number of pages:str. 55-60
Numbering:Letn. 2, št. 1
PID:20.500.12556/DKUM-88387 New window
UDC:616.62-006-07
ISSN on article:1855-5640
COBISS.SI-ID:248344064 New window
Publication date in DKUM:19.04.2024
Views:428
Downloads:9
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Acta medico-biotechnica : AMB
Publisher:Medicinska fakulteta, Medicinska fakulteta, Univerzitetna založba Univerze v Mariboru
ISSN:1855-5640
COBISS.SI-ID:242526720 New window

Secondary language

Language:Slovenian
Title:Comparison of the UBC ELISA test and the BTA Trak test for the detection of bladder tumor recurrence
Abstract:Namen: Primerjati natančnost pri odkrivanju ponovitev tumorja mehurja med uveljavljenim testom BTA Trak[TM] in novejšim testom UBC ELISA[TM]. Metode: Testiranih je bilo 63 vzorcev urina, ki so bili odvzeti pred kontrolno cistoskopijo. V primeru pozitivnega izvida cistoskopije je bila opravljena operativna odstranitev tumorja. Rezultat izvida vzorca urina je bil ovrednoten glede na rezultat cistoskopije in histološke preiskave. Rezultati: Mediana vrednost UBC je bila pri slabše diferenciranih tumorjih statistično pomembno višja. Mediane vrednosti UBC(mikrog/L) glede na stadij tumorja so bile: 22.1, 47.5, 95.7 in >150 za pTa, pT1, pT2/3 in CIS. Občutljivost testov UBC in BTA za vse vzorce je znašala 62 % in 90 % (p=0.0049). Glede na stadije je primerjava občutljivosti med BTA in UBC pri pTa pokazala 52 % proti 86 % (p=0.022), pri pT1 56 % proti 100 % (p=0.029), 83 % za oba testa pri pT2/3 in 100 % pri CIS. Za tumorje nizkega gradusa je bila občutljivost UBC 47 %, BTA 84% (p=0.022), za tumorje visokega gradusa pa 75 % in 95 % (p=0.085). Kombinacija obeh testov v primerjavi z uporabo samo testa BTA občutljivosti ni izboljšala. Specifičnost je na celotnem vzorcu za UBC znašala 71 % in za BTA 50 % (p>0.1). Izračunana natančnost testa UBC je za preučevani vzorec znašala 65 %, natančnost testa BTA pa 75 %. Zaključek: Test UBC ELISA[TM] ni pokazal boljše občutljivosti v primerjavi s testom BTA Trak[TM], in sicer predvsem zaradi slabših rezultatov pri bolje diferenciranih tumorjih in tumorjih nižjega stadija.
Keywords:urinary bladder neoplasms, urine, tumor markers, bladder tumor associated antigen, sensitivity, specificity, predictive value


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  1. Acta medico-biotechnica

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