Antrostomy�the operation of making an opening into an antrum (maxillary sinus) for purposes of drainagein a chronic sinus infection.. This opening into an antrum is done either through the medial wall into the nose or through the lateral wall into the oral cavity.

During surgery, the surgeon passes an endoscope which is a narrow tube, into the nose. This tube has a tiny camera and a light at the end of it, so the surgeon has an excellent view of your maxillary sinus, the opening to the maxillary sinus, and the area of the nose where it drains (the osteomeatal complex). Then small surgical instruments are passed to the site of the problem through another thin tube.

Using these instruments, the surgeon removes the blockage in your maxillary sinuses. This helps the fluid in your maxillary sinuses drain more efficiently and should reduce your chances of getting sinus infections in the future.����

Before discharging the doctor will instruct on care for the nose and sinuses while they heal.