But these are reserved for cases resistant to pharmacotherapy and endoscopic treatment. The use of botulinum toxin injections through the endoscope and balloon dilatation of the oesophagus for achalasia have been mentioned. Benign strictures and oesophageal webs can be dilated using various kinds of bougies. It is safer to carry out this dilatation under image intensifier control, threading the bougie over a guide wire. Corrosive injury is not uncommon in this country.
Acid ingestion is more common than alkali ingestion here.
Grading of the burn gives an idea about the prognosis of the injury. Early endoscopy, within the first 6-36 hours, has been shown to be safe 9 . Repeat endoscopies to prevent synechiae formation is also recommended. Sricturing occurs between 3 and 6 weeks. Late complication of fibrous strictures can also be managed by endoscopic dilatation.