Eardrum within two to four weeks. The prognosis becomes more guarded as the force of injury increases. The pressure of fluid in an infected middle ear onto the eardrum may cause it to rupture. Usually this consists of a small hole (perforation), which allows fluid to drain out. If this does not occur naturally, a myringotomy (tympanotomy, tympanostomy) can be performed. A myringotomy is a surgical procedure in which a tiny incision is created in the eardrum to relieve pressure caused by excessive buildup of fluid, or to drain pus from the middle ear. The fluid or pus comes from a
Pfannenstiel incision Hermann Johannes Pfannenstiel (1862–1909), a German gynecologist who invented the technique, in 1900. In the United Kingdom, the incision was popularised by Dr. Monroe Kerr, who first used it in 1911, so in English speaking countries it is sometimes called the Kerr incision or the Pfannenstiel–Kerr incision. Kerr published the results in 1920, proposing that this method would cause less damage to the vascularized areas of uterus than the classical operation. He claimed that it was better than the longitudinal uterine incision in terms of chances for scar rupture and injury to vessels. Pfannenstiel incision A Pfannenstiel incision , Kerr