alexa Characterization and Evaluation of Clopidogrel Response
ISSN: 2155-9880

Journal of Clinical & Experimental Cardiology
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Research Article

Characterization and Evaluation of Clopidogrel Response Testing in a Community Hospital Setting

Jeffrey Lalama1*, Marcia Brackbill2
1Assistant Professor, Regis University, Pharmacy Practice 3333 Regis Blvd, H-28, Denver, CO 80221, USA
2Associate Professor, Shenandoah University, Winchester, VA
Corresponding Author : Jeffrey Lalama
Assistant Professor, Regis University
Pharmacy Practice 3333 Regis Blvd
H-28, Denver, CO 80221, USA
Tel: 303-964-6289
Fax: 303-625-1305
E-mail: [email protected]
Received August 30, 2011; Accepted October 05, 2011; Published October 15, 2011
Citation: Lalama J, Brackbill M (2011) Characterization and Evaluation of Clopidogrel Response Testing in a Community Hospital Setting. J Clinic Experiment Cardiol 2:155. doi: 10.4172/2155-9880.1000155
Copyright: © 2011 Lalama J, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Purpose: To describe how VerifyNow P2Y12 testing for clopidogrel response is being utilized at a community hospital. Methods: A retrospective chart review was conducted at a 411-bed community hospital in patients who tested positive for poor clopidogrel response. Results: There were 95 positive P2Y12 tests evaluated in this study. Positive P2Y12 tests were obtained 40.0% of the time for cardiovascular indications, 28.4% for neurologic indications, 1.1% for hematologic indications, and 30.5% were obtained to evaluate patients prior to surgery. The medication regimens of 38.8% of patients did not change as a result of a positive test for poor clopidogrel response. The clopidogrel dose was increased in 16.3% of patients, and clopidogrel was discontinued in 10.2% of patients positive for poor clopidogrel response not undergoing surgical evaluation. Rehospitalization rates of non-surgical patients for recurrent thrombosis or bleeding at 90 days were highest for patients who had an additional antiplatelet agent or anticoagulant added due to poor clopidogrel response. The lowest rehospitalization rate was seen in patients switched to an alternative agent. Conclusions: The most common findings after a positive P2Y12 test in non-surgical patients were no change in therapy and increasing the dose of clopidogrel. Adding an additional antiplatelet agent or anticoagulant was associated with the highest risk of rehospitalization.


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