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J Med Toxicol. 2010 Sep;6(3):301-6. doi: 10.1007/s13181-010-0082-x.

Clinical profile and outcome of aluminum phosphide-induced esophageal strictures.

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Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India.


Aluminum phosphide (AlP) is a lethal solid fumigant pesticide which has been recently linked to esophageal stricture formation. This paper aims to study the clinical profile and response to treatment of AlP-induced esophageal strictures. Data on all patients of AlP-induced strictures seen between January 2004 and June 2008 were retrieved and analyzed for clinical parameters and response to endoscopic dilation. Each patient underwent barium swallow to define the site and length of stricture and then was dilated endoscopically. Twelve patients of AlP-induced esophageal stricture (seven males) with a mean age of 26.83+/-8.43 years were evaluated. They had consumed one to three AlP tablets, 4-156 weeks before reporting to us. They had onset of dysphagia within 2 to 8 weeks of ingestion of AlP. Of 14 strictures in 12 patients, seven were in upper third, two in middle third, and five in lower third of esophagus with a mean length of 1.96+/-0.75 cm. Nine patients responded to dilation requiring 5.56+/-2.65 dilations. Four patients were given intralesional steroids to augment the effect of dilation. Three patients failed and were operated upon. All patients remained symptom free over a follow-up of 3-30 (15.67+/-9.41) months. AlP-induced esophageal strictures can be dilated endoscopically in a majority of patients; however, 25% of them require surgical intervention. AlP-induced esophageal strictures, thus, behave like caustic-induced strictures.

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