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Comparison of the Quantra QPlus System With Thromboelastography in Cardiac Surgery.

Abstract：

OBJECTIVES:Use of viscoelastic testing, such as thromboelastography (TEG), is recommended in cardiac surgery to monitor coagulation and to guide the transfusion of blood products. The Quantra QPlus System is a novel point-of-care platform that uses ultrasonic pulses to characterize dynamic changes in viscoelastic properties of a blood sample during coagulation. Despite the ability to assess similar aspects of clot formation, limited studies addressing the interchangeability of viscoelastic testing parameters exist. The primary aim of the present study was to assess the correlation and agreement between Quantra and TEG5000 results using blood samples from cardiac surgery patients. DESIGN:Tertiary care, academic medical center. SETTING:Prospective observational study. PARTICIPANTS:Twenty-eight patients undergoing elective cardiac surgery undergoing cardiopulmonary bypass were evaluated. MEASUREMENTS AND MAIN RESULTS:Perioperative blood samples were collected and assessed using Quantra, and results were compared with TEG and conventional coagulation testing. Method comparison analysis demonstrated that Quantra parameters (Quantra clot time, clot stiffness, and fibrinogen contribution to clot stiffness) significantly correlated with TEG R and TEG G after induction of anesthesia, during cardiopulmonary bypass, and after rewarming (rs = 0.83, rs = 0.84, and rs = 0.73, respectively). However, Quantra parameters demonstrated poor agreement compared with equivalent TEG5000 parameters. CONCLUSIONS:The Quantra QPlus System significantly correlated with TEG5000, suggesting that this test may be used in a similar clinical context. Despite the strength of correlation between Quantra and TEG parameters, measurements are not interchangeable.

journal_name

J Cardiothorac Vasc Anesth

journal_title

Journal of cardiothoracic and vascular anesthesia

authors

DeAnda A,Levy G,Kinsky M,Sanjoto P,Garcia M,Avandsalehi KR,Diaz G,Yates SG

doi

10.1053/j.jvca.2020.11.058

subject

Has Abstract

pub_date

2020-12-08 00:00:00

eissn

1053-0770

issn

1532-8422

pii

S1053-0770(20)31293-3

pub_type

杂志文章

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