Aprotinin does not prolong the Sonoclot aprotinin-insensitive activated clotting time.

Abstract:

STUDY OBJECTIVE:To determine whether a new Sonoclot-based, aprotinin-insensitive activated clotting time (aiACT) assay yields stable results over a broad range of aprotinin concentrations. DESIGN:Prospective trial conducted on in vitro blood samples. SETTING:Tertiary-care teaching medical center. PARTICIPANTS:19 healthy adult volunteers. INTERVENTIONS:Whole blood samples were collected from volunteers. Heparin (2 U/mL) and escalating concentrations of aprotinin of 160 to 500 kallikrein inhibitory units (KIU)/mL were added in vitro. MEASUREMENTS AND MAIN RESULTS:Celite ACT, kaolin ACT, and aiACT assays were completed. The aiACT showed stable activated clotting time (ACT) results on heparinized, noncitrated blood with added aprotinin (P = nonsignificant). In contrast, celite ACT and kaolin ACT were greatly prolonged when aprotinin was added to heparinized, noncitrated, and citrated blood (P < 0.05). The aiACT had consistent results at all aprotinin concentrations (P = nonsignificant). CONCLUSIONS:Aprotinin (160, 320, and 500 KIU/mL) significantly prolongs the ACT value with celite and kaolin activators but not with the aprotinin-insensitive activator.

journal_name

J Clin Anesth

authors

Dong Y,Nuttall GA,Oliver WC Jr,Agarwal S,Ereth MH

doi

10.1016/j.jclinane.2007.03.003

subject

Has Abstract

pub_date

2007-09-01 00:00:00

pages

424-8

issue

6

eissn

0952-8180

issn

1873-4529

pii

S0952-8180(07)00173-0

journal_volume

19

pub_type

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