Complications of endoscopic sinus surgery.

Complication rates of intranasal sinus surgery range from 2 per cent to 17 per cent. This range identifies the difference between experienced and inexperienced sinus surgeons. Endoscopic sinus surgeons encounter the same risks as traditional intranasal or external sinus surgeons. New technology demands added training and increased vigilance so that complication rates remain as low as possible. Synechia formation, orbital hematoma, and antrostomy closure are the most common complications. CSF leak with meningitis, double vision, and blindness are the most devastating. Reduction of complication rates begin with prevention, which is achieved through diligent preparation. Careful surgical technique based on both old and new principles combined with compulsive postoperative care are the necessary ingredients needed for safe sinus surgery.