RESUMO
Background: In acute chemical injury, damage can range from ocular surface epithelial defects to limbal and scleral ischemia. This may subsequently progress to corneal or scleral melting and perforation and finally result in phthisis bulbi. Thus, acute chemical injury is a potentially blinding condition and warrants attention. The accurate technique to assess the damage incurred should be practiced to avoid undertreatment and subsequent complications. Surgical intervention wherever needed should be appropriately timed and should be performed. The primary aim of medical or surgical intervention in acute chemical injury is to attain a stable and epithelized ocular surface. Even a conjunctival phenotype over the cornea is a desirable outcome. Purpose: This video discusses the nuances involved in the assessment and planning of Tenon advancement with amniotic membrane grafting for treating limbal ischemia in acute chemical injury. Synopsis: The video demonstrates the technique of restoration of limbal vascularization by performing Tenon advancement with amniotic membrane grafting and its outcome. Highlights: Ocular surface painting with fluorescein dye is essential to assess the areas of surface involvement. Merely instilling the fluorescein dye in the cul?de?sac will underestimate the extent of the damage. Tenon advancement should ideally be planned between 7 and 10 days following an injury when actual limbal blanching is obvious. A stable and epithelized ocular surface is the desirable outcome irrespective of the epithelial phenotype.
RESUMO
To deal with effectively acute chemical injury events, the service ability of protective medicine against chemical weapons has being widened from dealing with traditional chemical warfare to public chemical accident or chemical terrorist attack. Focusing on the important researching and developing of medicine for chemical defense use only, the novel drug/device combination products should be vigorously promoted including the new mechanism, good curative effect and high safety of detoxification drugs such as hydroxycobalamin used in the treatment of known or suspected cyanide poisoning in both adults and the pediatric population, and the convenient and quick drug delivering technologies such as auto-injectors with a retreat hidden needle and a smart remindful injection, which could improve greatly the emergency medical rescue ability of chemical accidents.
RESUMO
To deal with effectively acute chemical injury events,the service ability of protective medicine against chemical weapons has being widened from dealing with traditional chemical warfare to public chemical accident or chemical terrorist attack. Fo?cusing on the important researching and developing of medicine for chemical defense use only,the novel drug/device combination products should be vigorously promoted including the new mechanism,good curative effect and high safety of detoxification drugs such as hydroxycobalamin used in the treatment of known or suspected cyanide poisoning in both adults and the pediatric population ,and the convenient and quick drug delivering technologies such as auto-injectors with a retreat hidden needle and a smart remindful injec?tion,which could improve greatly the emergency medical rescue ability of chemical accidents.