Lack of in vitro interaction between heparin and nitroglycerin.

Abstract:

:Nitroglycerin has been reported to reduce activated partial thromboplastin time (aPTT) values in patients treated with concurrent heparin and nitroglycerin. However, in vivo studies have yielded conflicting results. In this in vitro evaluation, nitroglycerin was added to samples of pooled plasma from normal volunteers in concentrations of 0, 1, 10, 50, 100, 150, and 200 ng/mL. Preservative-free heparin was then added to the samples to produce final concentrations of 0, 0.3, and 0.6 U/mL. Activated partial thromboplastin time (aPTT) was determined for each sample using a single reagent. There were no significant differences in aPTT values among increasing nitroglycerin concentrations for any of the three levels of heparinization. No direct effect of nitroglycerin on the anticoagulant effect of heparin was observed, as measured by aPTT.

journal_name

Am J Clin Pathol

authors

Barnes AD,Horn JR,Wittkowsky AK

doi

10.1093/ajcp/105.3.298

subject

Has Abstract

pub_date

1996-03-01 00:00:00

pages

298-300

issue

3

eissn

0002-9173

issn

1943-7722

journal_volume

105

pub_type

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