Myringotomy children, while local anesthesia suffices for adults. The ear is washed and a small incision made in the eardrum. Any fluid that is present is then aspirated, the tube of choice inserted, and the ear packed with cotton to control any slight bleeding that might occur. This is known as conventional (or "cold knife") myringotomy and usually heals in one to two days. A new variation (called "tympanolaserostomy" or "laser-assisted tympanostomy") uses CO laser, and is performed with a computer-driven laser and a video monitor to pinpoint a precise location for the hole. The laser takes one tenth of a
Joel-Cohen incision for re-appearance of audible intestinal sounds were shorter in Joel-Cohen group than the Pfannenstiel group in a study conducted with 153 women. In the two studies (with 411 participants) that compared the Joel-Cohen incision with the Pfannenstiel incision, the Joel-Cohen incision was associated with a 65% reduction in postoperative febrile morbidity. The skin incision is made 3 cm above the location of Pfannenstiel incision. The subcutaneous tissue is incised in three medial centimetres. The lateral tissue separation is done manually and the fascia is divided by blunt dissection using both index fingers. This incision is extended laterally by the fingers.