Endoscopic sinus surgery has emerged in the last decade as the treatme
nt of choice for chronic sinusitis. Reports of complications of the pr
ocedure from different centers vary depending on the technique used an
d the experience of the surgeon. Between August 1990 and August 1993,
337 patients underwent endoscopic sinus surgery at West Virginia Unive
rsity, Most of the cases were performed by senior residents under facu
lty supervision. Minor complications were encountered in 15.1% of the
cases and major complications in 1.5% of the patients. The most common
major complication was cerebrospinal fluid leak, All patients with ce
rebrospinal fluid leaks were diagnosed and treated successfully at the
time of surgery. Middle turbinate adhesions and orbital penetration w
ere the most common minor complications. Routine partial middle turbin
ectomy did not decrease the adhesion rate. Endoscopic sinus surgery is
a relatively safe procedure, even when performed by residents under a
dequate supervision.