Question of the Week

Question :

Posted On : 31 Aug 2008

Why brain abscess is more common than abscesses of other organs in children with congenital cyanotic heart diseases?

Expert Answer :

No expert answer available.

Answer Discussion :

kabeerahmad khan

due to thromboembolic phenomenon

16 years ago

robert newman

lack of valves in venous systems

16 years ago

pediatriconcall

The pulmonary capillary bed is an efficient bacterial filter, but when a right-to-left shunt exists it is largely bypassed. If there is increased viscosity of blood in the polycythaemic patient, cerebral anoxia leading to cerebral softening may result. Bacterial infection at such a site of softening could then produce an abscess.

16 years ago

drujjwala

Continuous oxygen reuired for brain,brain material rich for growth of bacteria

16 years ago

Dra. Ma Elena Calderón

the possible mechanism for the formation of brain abscess in patients with congenital heart disease has been join ed to a decrease in cerebral blood flow, secondary to a communication from left to right, and this determines cerebral hypoxia and alteration of the blood-brain barrier, allowing penetration and bacterial multiplication at that level. Fallot Tetralogy of Fallot is the heart defect that is most commonly associated with this condition

16 years ago

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