[Venous air emboli in a 4 year old child].

A 4 year old girl is referred to our institution for resection of a nephroblastoma with an extension of the tumor into the lumen of the inferior vena cava. To perform a correct resection of the tumor, the operation was conducted under cardiopulmonary bypass. At the end of the procedure, a bilateral mydriasis was noticed. A CT-scan concluded to a massive venous air emboli. As the procedure was unventful, and no other cause of air emboli was found, the etiology of this emboli is problably retrograde because of the large opening of the inferior vena cava that was required to remove the tumor. To avoid similar case the use of transcranial doppler monitoring may be of interest.