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Related Experiment Video

Updated: Jul 18, 2026

Cardiopulmonary Bypass in a Mouse Model: A Novel Approach

Cardiopulmonary Bypass in a Mouse Model: A Novel Approach

Published on: September 22, 2017

Thrombin during cardiopulmonary bypass.

L Henry Edmunds¹, Robert W Colman

¹Harrison Department of Surgical Research, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA. hank.edmunds@uphs.upenn.edu

The Annals of Thoracic Surgery

|November 28, 2006

Summary

Cardiopulmonary bypass (CPB) triggers a significant inflammatory response. New strategies, including cell savers and direct thrombin inhibitors, may now fully prevent thrombin generation and fibrinolysis during cardiac surgery.

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Published on: March 23, 2018

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Last Updated: Jul 18, 2026

Cardiopulmonary Bypass in a Mouse Model: A Novel Approach

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Published on: September 22, 2017

A Recovery Cardiopulmonary Bypass Model Without Transfusion or Inotropic Agents in Rats

A Recovery Cardiopulmonary Bypass Model Without Transfusion or Inotropic Agents in Rats

Published on: March 23, 2018

Area of Science:

Biochemistry
Immunology
Hematology

Background:

Cardiopulmonary bypass (CPB) initiates a systemic inflammatory response involving blood cells and plasma proteins.
This response generates vasoactive substances, signaling molecules, and alters cellular receptors.
Thrombin, a key enzyme in coagulation, is only partially inhibited by heparin during CPB.

Purpose of the Study:

To explore the mechanisms of thrombin generation during CPB.
To evaluate the potential of novel strategies to completely suppress thrombin and fibrinolysis.

Main Methods:

Review of coagulation pathways (extrinsic and intrinsic) and platelet activation during CPB.
Analysis of the role of cell savers and direct thrombin inhibitors.

Main Results:

Thrombin is produced via both extrinsic and intrinsic pathways and by activated platelets during CPB.
Cell savers and direct thrombin inhibitors present an opportunity for complete thrombin suppression.

Conclusions:

Complete suppression of thrombin production and fibrinolysis during CPB is now feasible.
This could mitigate the inflammatory and thrombotic consequences of CPB in cardiac surgery.