Incompetence of the lower esophageal sphincter mechanism leads to gastroeso
phageal reflux (GER), which is the most common indication for surgery of th
e gastroesophageal junction. Evaluation, diagnosis, and the modern surgical
treatment of GER are discussed. Evaluation of patients with severe heartbu
rn include upper endoscopy to evaluate the general condition of the esophag
us, stomach, and duodenum; an upper gastrointestinal contrast study for a c
omplete anatomic view of the esophagus and stomach; esophageal manometry to
evaluate the function of the esophagus; 24-hour pH monitoring to determine
esophageal acid exposure; and a gastric emptying study selectively to dete
rmine the presence of a motility disorder. These studies most often prove t
he diagnosis of gastroesophageal reflux, hiatal hernia, Barrett's esophagus
, peptic esophageal stricture, paraesophageal hernia, or achalasia. The lap
aroscopic approach to treatments for these include Nissen fundoplication, T
oupet fundoplication, Collis gastroplasty with fundoplication, modified Hel
ler myotomy, esophageal diverticulectomy, and revisional operations. These
procedures are described in detail. The results of these operations indicat
e that they are safe and effective and should be considered the new gold st
andard for correction of gastroesophageal pathology. Laparoscopic surgery h
as revolutionized many procedures traditionally performed through a laparot
omy. Although they are technically more difficult and require a significant
amount of time and practice for the surgeon to become proficient, it is be
coming apparent that for functional surgery of the gastroesophageal junctio
n laparoscopy is the access of choice.