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Primary or secondary fibrinolysis

Contents of this page:

Illustrations

Blood clot formation
Blood clot formation
Blood clots
Blood clots

Alternative Names    Return to top

Fibrinolysis

Definition    Return to top

Fibrinolysis is a normal body process that keeps naturally occurring blood clots from growing and causing problems.

Primary fibrinolysis refers to the normal breakdown of clots.

Secondary fibrinolysis is the breakdown of blood clots due to a medical disorder, medicine, or other cause.

Causes    Return to top

Blood clots form on a protein called fibrin. The breakdown of fibrin (fibrinolysis) can increase under certain conditions, such as:

In some situations, doctors may wish to speed up the rate of fibrinolysis. For example, when an abnormal clot forms in the blood vessels of the heart and results in a heart attack, human-made fibrinolytic substances (such as tPA, streptokinase, or Retavase) may be given to break up the clot.

Update Date: 3/24/2008

Updated by: Stephen Grund, MD, PhD, Chief of Hematology/Oncology and Director of the George Bray Cancer Center at New Britain General Hospital, New Britain, CT. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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