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According to experts from Chongqing Dongda Anorectal Hospital, anorectal diseases are easily stimulated and polluted by feces because of their special location. At the same time, surgical wounds are mostly open and located in anus, which is prone to poor wound drainage, granulation hyperplasia, edema, bleeding, delayed healing and even wound infection. Generally, it is not easy to heal normally without dressing change.
At the same time, anorectal surgery often has special situations such as elastic thread hanging, ligation and mouth-to-mouth drainage, which need to be observed and handled in time when dressing changes. Therefore, postoperative dressing change is particularly important, and there is even a saying that "three-point surgery and seven-point dressing change".
According to experts from Chongqing Dongda Anorectal Hospital, anorectal diseases are generally Class II incisions and Class B healing. The wound recovery period is divided into three stages: inflammation stage, fibrosis stage and epithelial covering stage, which need dressing change.
early stage
The wound is mainly inflammatory exudation. The purpose of dressing change at this stage is to clean the wound, remove foreign bodies and pus, make the wound drainage smooth, reduce the stimulation of bacteria and secretions, and prevent concurrent infection.
midterm examination
During this period, wound secretion decreased, mainly granulation tissue hyperplasia. Because granulation tissue has weak resistance to external physical and chemical stimuli and is easily damaged, granulation tissue should be protected during this period so as not to affect wound healing.
postponement of menstruation
At this stage, the wound surface and the wound surface have been basically filled with granulation tissue, and the wound centers of epithelial cells at the edge of the wound surface are close together, and finally the wound surface is covered to heal the wound surface.
Dressing change after hemorrhoid operation
According to experts from Chongqing Dongda Anorectal Hospital, the drainage gauze should be placed at the bottom of a wide radial incision to make the incision heal gradually and avoid anal stenosis. Keep the stool unobstructed and gently change the dressing to avoid premature shedding of internal hemorrhoid ligature caused by severe dressing change, causing bleeding or wound healing. Observe the granulation on the wound surface. If it appears higher than the skin edge, it should be cut off in time, and the external ointment should be stopped and water-based gauze should be used instead.
Dressing change after anal fissure operation
After anal fissure surgery, the wound surface is mostly vertical, and a small gauze should be placed at the bottom of the wound surface when changing the dressing. The wound healing from the base after anal fissure surgery is the key to no stenosis and no recurrence.
Dressing change after abscess and anal fistula surgery
According to experts from Chongqing Dongda Anorectal Hospital, there are many necrotic tissues and secretions in the cavity after abscess or anal fistula surgery. When changing the dressing, we should try our best to eliminate rotten tissue and purulent blood, and wash it with physiological saline, metronidazole and other solutions. After washing, the wound can be filled with gauze of purple grass oil to make the drainage smooth or avoid false healing.
Tips from Chongqing Dongda Anorectal Hospital: Many patients pay too much attention to the recovery of anal wound after operation, which is not conducive to wound recovery. Everyone should communicate with the doctor in time to find a suitable dressing change method.