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Esophagus causes chemical burns, chemical burns the esophagus is caused by what the cause

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Esophagus causes chemical burns, chemical burns the esophagus is caused by what the cause Summary:

esophageal chemical burns are caused by what the? (a) causes esophageal chemical burns clinically divided into two types of acid and alkaline corrosive, acidic chemicals, such as strong acids (sulfuric acid, nitric acid, hydrochloric acid,

esophageal chemical burns are caused by what the?

(a) causes

esophageal chemical burns clinically divided into two types of acid and alkaline corrosive, acidic chemicals, such as strong acids (sulfuric acid, nitric acid, hydrochloric acid, carbolic acid, etc.) contact with tissue coagulation necrosis, due to esophageal squamous acid attached to the surface epithelium mucus-like ability, can prevent more acid to the deep tissue penetration, so the time to be absorbed and reach the stomach; alkaline chemicals such as potassium hydroxide, sodium hydroxide, liquid Lysol children, brine , dilute ammonia solution (ammonia) and lime, etc. can be dissolved proteins, collagen and fat, after swallowing the main produce liquefaction necrosis, to deep tissue penetration, causing extensive tissue damage, because a higher proportion of liquid alkali, easy through the pharynx into the esophagus and stomach; solid state due to easier adhesion and alkali pharynx or esophagus often confined to a region.

(B) the pathogenesis

alkaline substances cause esophageal injury and healing is divided into three, namely, the acute phase (1 to 4 days): liquefaction, necrosis, vascular thrombosis and progressive inflammatory changes, mucosal congestion, edema, 24h in shedding and mucosal necrosis does not appear; subacute phase (5 to 14 days): off mucosal necrosis, the formation of ulcers with granulation tissue formation, fibroblasts began to appear, collagen deposition, when the esophageal wall is thin, the most easily perforated; scar formation period (15 days to 3 months): the formation of fibrous tissue, and further deposition of collagen, collagen contraction of the third week, resulting in esophageal stricture, esophageal mucosal regeneration in swallowing caustic lye after 4 weeks to 3 months to complete serious late complications of esophageal chemical injuries is esophageal stricture, stenosis and more at the site of the most serious esophageal injury, esophageal stricture easy to make the physical retention of parts of corrosive substances, but also the most important parts of the esophageal injury.                                                     

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