In hirudotheraphy, leeches may be used to assist in the treatment of abcesses, arthritis, glucoma, myasthenia gravis, thrombosis and some venous disorders. Medical leeches may also be used in plastic surgery and in some blood circulatory problems.
A ventilation-induced flashover happens when fresh oxygen suddenly feeds an under-ventilated fire, rapidly accelerating heat release until the entire room ignites almost at once.
