Myringotomy could be relieved by myringotomy, which equalized the pressure on each side of the tympanic membrane. Widespread inappropriate use of the procedure later led to it falling out of use. However, it was reintroduced by Hermann Schwartze in the 19th century. An inherent problem became recognized, namely the tendency of the tympanic membrane to heal spontaneously and rapidly, reversing the beneficial effects of the perforation. In order to prevent this, a tympanostomy tube, initially made of gold foil, was placed through the incision to prevent it from closing. Ádám Politzer, a Hungarian-born otologist practicing in Vienna, experimented with rubber in
Human body weight BMC Public Health and at the United Nations conference Rio+20. Human body weight Human body weight refers to a person's mass or weight. Body weight is measured in kilograms, a measure of mass, throughout the world, although in some countries such as the United States it is measured in pounds, or as in the United Kingdom, stones and pounds. Most hospitals, even in the United States, now use kilograms for calculations, but use kilograms and pounds together for other purposes. Strictly speaking, body weight is the measurement of weight without items located on the person. Practically though, body weight may