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Lorubbio M, Diamanti D, Ghiandai A, Pieroni C, Bonini D, Pettinari M, Gorini G, Bassi S, Meloni P, Ognibene A. Evaluation of Stability and Accuracy Compared to the Westergren Method of ESR Samples Analyzed at VES-MATIC 5. Diagnostics (Basel) 2024; 14:557. [PMID: 38473029 DOI: 10.3390/diagnostics14050557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/22/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
The Erythrocyte Sedimentation Rate (ESR) is a diagnostic estimator of systemic inflammation as a reflection of acute phase proteins circulating in the blood. The purpose of this manuscript is to evaluate the blood stability at room temperature (RT) and at 4 °C to avoid ESR diagnostic errors, as well as the accuracy of the VES-MATIC 5 analyzer. The ESR stability evaluation at RT for 24 h (4 h "T1", 6 h "T2", 8 h "T3", 10 h "T4", 24 h "T5") and at 4 °C (24 h, 36 h, 48 h) was carried out using 635 total samples, starting with T0 (2 h of venipuncture). For method comparison, 164 patients were analyzed using VES-MATIC 5 and then the Westergren reference method. The sample at RT is established by a significant gradual decrease in correlation R = 0.99 (T0 vs. T1), R = 0.97 (T0 vs. T2), R = 0.92 (T0 vs. T3), R = 0.87 (T0 vs. T4), and R = 0.40 (T0 vs. T5). The stability at 4 °C after 24 h, 36 h, and 48 h showed a regression of R = 0.99, R = 0.97, and R = 0.95, respectively. Therefore, ESR measurements on RT samples beyond 6 h after collection cannot be carried out, but the ESR can be measured until 36 h for samples stored at 4 °C. Moreover, the VES-MATIC 5 accuracy performance compared to the Westergren method (R = 0.96) is confirmed.
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Affiliation(s)
- Maria Lorubbio
- Chemical-Clinical Analysis Laboratory, Department of Laboratory Medicine and Transfusion, San Donato Hospital, 52100 Arezzo, Tuscany, Italy
| | - Daniela Diamanti
- DIESSE-Diagnostica Senese S.p.A., Strada dei Laghi, 35-39, 53035 Monteriggioni, Siena, Italy
| | - Alessandro Ghiandai
- Chemical-Clinical Analysis Laboratory, Department of Laboratory Medicine and Transfusion, San Donato Hospital, 52100 Arezzo, Tuscany, Italy
| | - Carolina Pieroni
- DIESSE-Diagnostica Senese S.p.A., Strada dei Laghi, 35-39, 53035 Monteriggioni, Siena, Italy
| | - Donatella Bonini
- Chemical-Clinical Analysis Laboratory, Department of Laboratory Medicine and Transfusion, San Donato Hospital, 52100 Arezzo, Tuscany, Italy
| | - Massimiliano Pettinari
- Chemical-Clinical Analysis Laboratory, Department of Laboratory Medicine and Transfusion, San Donato Hospital, 52100 Arezzo, Tuscany, Italy
| | - Gabriele Gorini
- Chemical-Clinical Analysis Laboratory, Department of Laboratory Medicine and Transfusion, San Donato Hospital, 52100 Arezzo, Tuscany, Italy
| | - Stefania Bassi
- Chemical-Clinical Analysis Laboratory, Department of Laboratory Medicine and Transfusion, San Donato Hospital, 52100 Arezzo, Tuscany, Italy
| | - Paola Meloni
- Chemical-Clinical Analysis Laboratory, Department of Laboratory Medicine and Transfusion, San Donato Hospital, 52100 Arezzo, Tuscany, Italy
| | - Agostino Ognibene
- Chemical-Clinical Analysis Laboratory, Department of Laboratory Medicine and Transfusion, San Donato Hospital, 52100 Arezzo, Tuscany, Italy
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