Authors: JW de Vries TM Hoorntje N Sreeram
Publish Date: 2014/04/30
Volume: 21, Issue: 5, Pages: 461-464
Abstract
Balloon dilatation of valvar and vascular stenoses has become routine therapy in pediatric cardiology Repeated balloon inflations cause many episodes of low cerebral oxygen delivery This study is a prospective study to assess the effects of balloon dilatation on cerebral perfusion and oxygenation The study included 11 patients scheduled for elective catheterization and balloon dilatation at a university pediatric hospital Blood flow velocity in the middle cerebral artery V mca and regional cerebral oxygen saturation rSO2 were monitored by means of transcranial Doppler sonography and near infrared spectroscopy respectively In group 1 consisting of 6 patients without an intracardiac shunt inflation of the balloon resulted in a decrease in V mca followed by a minor decrease in rSO2 In group 2 consisting of 5 patients with an interatrial communication inflation resulted in an increase in righttoleft shunt fraction arterial desaturation and a major decrease in rSO2 with minor changes in V mca Balloon dilatation causes an important decrease in cerebral oxygen delivery by different mechanisms This may lead to serious morbidity and even mortality Neuromonitoring is a useful tool in assessing the cerebral effects of balloon dilatation and brain recovery
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