Wilm's tumor with intracardiac extension causing dynamic tricuspid valve obstruction: An anesthetic challenge.

Wilms' tumor (WT) is the most common pediatric renal tumor that often spreads to inferior vena cava and sometimes up to right atrium (RA). We describe successful management of 3-year-old child diagnosed with WT having extension up to RA. He was operated under cardiopulmonary bypass and extubated on postoperative day 2 and discharged. Perioperative anesthesia concerns were shock from dynamic tricuspid valve obstruction, intraoperative massive blood loss, and a higher risk of pulmonary thromboembolism during tumor manipulation.