Haemorrhagic disease of the newborn

Haemorrhagic disease of the newborn
Vitamin K1
ICD-10	P53
ICD-9	776.0
DiseasesDB	29544
MeSH	D006475

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Haemorrhagic disease of the newborn is a coagulation disturbance in newborns due to vitamin K deficiency. As a consequence of vitamin K deficiency there is an impaired production of coagulation factors II, VII, IX, X, C and S by the liver.

Pathophysiology

Newborns are relatively vitamin K deficient for a variety of reasons. They have low vitamin K stores at birth, vitamin K passes the placenta poorly, the levels of vitamin K in breast milk are low and the gut flora has not yet been developed (vitamin K is normally produced by bacteria in the intestines).

Diagnosis

Symptoms

The disease causes an increased risk of bleeding. The most common sites of bleeding are

• Umbilicus
• Mucous membrane
• Gastrointestinal tract
• Circumcision
• Venipunctures.

Treatment

Treatment consists of vitamin K supplementation. This is often given prophylactically newborns shortly after birth.

Related Chapters

• Hemolytic disease of the newborn

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