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Hemostatic defects in experimental obstructive jaundice.

J Kambayashi, T Ohshiro, T Mori

The Japanese Journal of Surgery

|January 1, 1985

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Obstructive jaundice in rats caused hemostatic defects, primarily due to vitamin K malabsorption. Supplementation with vitamin K prevented these coagulation abnormalities, indicating its crucial role.

Area of Science:

Biochemistry
Hematology
Gastroenterology

Background:

Obstructive jaundice can lead to hemostatic abnormalities.
The exact cause of these defects in obstructive jaundice is not fully understood.

Purpose of the Study:

To investigate the etiology of hemostatic abnormalities in obstructive jaundice.
To determine the role of vitamin K malabsorption in these defects.

Main Methods:

Bile duct occlusion was performed in rats for one week.
Coagulation and fibrinolysis profiles were assessed using Hepaplastin test and Thrombotest.
Histological liver changes were examined.
The effect of vitamin K administration was evaluated.

Main Results:

Related Experiment Videos

Jaundiced rats showed reduced Hepaplastin and Thrombotest values with minimal liver changes.
Coagulation and fibrinolysis profiles remained largely within normal limits.
Vitamin K administration prevented the hemostatic abnormalities.

Conclusions:

Malabsorption of vitamin K is the likely cause of hemostatic defects in obstructive jaundice.
Obstructive jaundice does not induce hypercoagulable or hypofibrinolytic states.
Vitamin K supplementation is effective in correcting these defects.