0 the action of deliberately blocking the flow of blood in a particular blood vessel by putting material into the blood:
In the embolization of systemic-to-pulmonary collaterals, which is the main indication for this procedure in children, secondary migration occurs towards branch pulmonary arteries.
The major risk has been embolization of the device to the pulmonary arteries or, more rarely, to the aorta.
The presently available coil techniques, however, are considered unsafe because of risk of unwanted loss of the coil during the embolization maneuver.
In all these patients, embolization resulted in prompt clinical improvement, enabling them to be weaned from the ventilator.
One patient with unbuttoning without embolization, developed hemolysis and was operated on two weeks after implantation; the other patients are doing well.
Migration of the device during therapeutic embolization is a recognized complication, which can be satisfactorily dealt with by transcatheter retrieval without recourse to surgery.
Their study demonstrated clearly the hazard of rapid cooling and extensive gaseous embolization of the cerebral circulation.
It is generally believed that focal neurologic events are the result of embolization.
