Article: The enhanced direct antiglobulin test in current practice has a limited impact on management of adult patients.
2023 Volume 62, Issue 5, Page(s) 103768
Abstract: Introduction: The direct antiglobulin test (DAT) identifies immunoglobulin IgG and/or complement onthe red blood cell surface, allowing discrimination between immune and non-immunehemolysis. When the DAT is negative but there is clinical suspicion for ... ...
Abstract | Introduction: The direct antiglobulin test (DAT) identifies immunoglobulin IgG and/or complement onthe red blood cell surface, allowing discrimination between immune and non-immunehemolysis. When the DAT is negative but there is clinical suspicion for immunehemolysis, an enhanced DAT can be sent to an immunohematology referencelaboratory (IRL). Methodology: This retrospective study assessed the volume of enhanced DATs at a large tertiarycare center and evaluated their impact on patient care. Enhanced DATs were sent on21 adult patients (January 2019 - January 2021) at the University of Pittsburgh MedicalCenter and Allegheny Health Network. Laboratory and clinical data were collected andanalyzed. Results: Four out of 21 patients had positive tests (DAT and other serologic tests) at the localIRL. Enhanced DAT testing yielded positive results in an additional 5 patients butnegative or invalid results for 2 patients. High-dose steroid therapy was started in 12patients prior to receipt of enhanced DAT results. Enhanced DAT testing was sent amedian of 5 days after initiation of steroid therapy. For the patients trialed on steroids,the enhanced DAT results impacted medical decision-making in only 3 patients, and inonly one of those patients was the enhanced DAT positive despite a negative DAT at alocal IRL. In the non-steroid treated patients, enhanced DAT results did not contributeto clinical decision-making. Conclusion: Enhanced DATs generally did not impact medical decision-making in adults withhemolytic anemia. |
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MeSH term(s) | Humans ; Adult ; Anemia, Hemolytic, Autoimmune ; Retrospective Studies ; Coombs Test/methods ; Erythrocytes/metabolism ; Steroids ; Alzheimer Disease |
Chemical Substances | Steroids |
Language | English |
Publishing date | 2023-08-17 |
Publishing country | England |
Document type | Journal Article |
ZDB-ID | 2046795-3 |
ISSN | 1878-1683 ; 1473-0502 |
ISSN (online) | 1878-1683 |
ISSN | 1473-0502 |
DOI | 10.1016/j.transci.2023.103768 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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