Conservative management of chylothorax after coronary artery bypass grafting.

Chylothorax is a rare sequela to cardiac surgery, associated with high rates of morbidity and mortality. There are various medical and surgical options for its management. We describe 2 cases of chylothorax that developed after coronary artery bypass grafting and were managed successfully with medical therapy alone. Conservative treatment such as we describe aims to reduce chyle flow, to drain the pleural cavity in an effective manner, and to prevent chronic sequelae. Optimal conservative treatment, consisting of nothing by mouth and the administration of a pleurodetic agent, should be started immediately upon diagnosis. In most cases, it reduces the need for reoperation and long-term hospitalization. Prospective randomized controlled trials are nonetheless needed to confirm these assumptions.