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Performance comparison of platelet function analyzers in cardiology patients: VerifyNow and Anysis-200 aspirin assays

Authors
 Young Hak Chung  ;  Kyung Ah Lee  ;  Minhee Cho  ;  Sehyun Shin  ;  Byoung Kwon Lee 
Citation
 CLINICAL HEMORHEOLOGY AND MICROCIRCULATION, Vol.76(1) : 33-42, 2020-10 
Journal Title
 CLINICAL HEMORHEOLOGY AND MICROCIRCULATION 
ISSN
 1386-0291 
Issue Date
2020-10
Keywords
Anysis-200 analyzer ; Platelet function ; VerifyNow ; aspirin
Abstract
Background: Analysis of responsiveness to antiplatelet therapy is crucial in the management of patients with cardiovascular diseases. Objective: This study aimed to evaluate a new platelet function analysis system (Anysis-200) and to compare it with VerifyNow (Accumetrics, San Diego, CA, USA) in cardiology patients. Methods: Overall, 125 citrated blood samples were collected from 85 cardiology patients referred for platelet function testing. In Anysis-200, platelet function was measured as blood migration distance (MD) until clogging of flow passage, which is comparable to aspirin resistance units obtained using VerifyNow. The two devices were simultaneously used and compared. Results: The MDs before and after taking aspirin were 175±51 and 247±27 mm, respectively (p < 0.0001). Compared with VerifyNow (reference), the sensitivity and specificity of Anysis-200 was 91.5% and 75.5%, respectively (area under the curve, 0.829). Further, the true positive rate in patients newly taking aspirin was 85% for VerifyNow and 92.5% for Anysis-200, respectively. The Cohen's kappa coefficient between the two devices was 0.682, indicating a relatively high agreement. Conclusions: Anysis-200, a novel system for assessing platelet aggregation, has accuracy and precision equivalent to that of, and significant agreement with, VerifyNow. Anysis-200 may be useful in screening patients with abnormal platelet reactivity and aspirin nonresponsiveness.
Full Text
https://content.iospress.com/articles/clinical-hemorheology-and-microcirculation/ch200822
DOI
10.3233/CH-200822
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Laboratory Medicine (진단검사의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Kyung A(이경아) ORCID logo https://orcid.org/0000-0001-5320-6705
Lee, Byoung Kwon(이병권) ORCID logo https://orcid.org/0000-0001-9259-2776
Jung, Young Hak(정영학)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/180499
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