Gangrene - a disease that manifests itself in the process of necrosis tissues and organs.In modern medicine, the pathology is classified in consistency and rate of change of the affected tissues and include dry, wet and gas gangrene.
Dry gangrene is caused by the sudden cessation of blood supply to the tissues, leading to dryness, wrinkling, and a certain seal.The affected tissue at a considerably reduced extent, have a black-brown and sometimes black.
causes and symptoms of this disease
reasons of illness of any form of general (except for gas gangrene, a major etiological factor which is anaerobic flora).Many people wonder if the disease is contagious.I must say that the disease is not transmitted.
Among the main etiological factors of gangrene can be called tissue injuries, exposure to extreme temperatures or chemicals, and radiation.For the development of this pathology leads and internal disturbances in the body.Among them, it is worth noting vascular atherosclerosis, elevated blood clots,
Gangrene dry form usually affects the lower limbs, and develops in most cases, patients with sudden exhaustion or dehydration.Getting the disease is characterized by the appearance of severe pain, which is associated with tissue ischemia.It is localized below the location of the affected blood vessel.
finiteness in this pathology becomes pale, marble-looking and cool to the touch, palpation pulse is not detected.The sensitivity of the affected area is lost.Patients complain of numbness in the feet or hands.I must say that the pain is prolonged, as in necrotic tissues preserved nerve cells and develops reactive swelling above the necrosis places, and the pain may persist for a long enough time.
Dry gangrene of the lower limbs occurs not only with the development of obstruction of the main trunk of the vessel, but also with a spasm of collateral arterial vessels, which accelerates the development of the necrotic process.tissue damage begins with the periphery and extends up to the point of occluded vessels.With a favorable course of the disease on the verge of healthy and diseased tissue formed protective wall, warning further spread of necrosis process.
If the pathological process joins the bacterial flora developed wet gangrene, which is accompanied by decay of damaged tissues.It should be noted that the wet and dry gangrene can transform into each other, and the dry form of the disease has a more favorable prognosis, since in it necrotic masses do not disintegrate, toxic products are absorbed in small amounts, so the expressed intoxication is absent, and the general condition of patients with disturbed slightly.This allows for effective conservative therapy without necrectomy (operational removal of necrotic tissue).
I must say that dry gangrene often develops in diabetes (mostly in diabetes of the first type) and significantly complicates the course of the disease, although tissue necrosis in this case, is developing quite slowly.Develops common klinikazabolevaniya, but in cases where the tissue can not dry out fully, activates the putrefactive flora.
It is most often observed in obese patients with toxic breakdown products into the blood and cause severe intoxication.In this case, dry gangrene in diabetes goes into the wet form of the disease.
Principles of therapy of the dry form of gangrene
The basis of the treatment of gangrene are methods that are aimed at eliminating the causes of tissue necrosis.In the dry form of the disease is applied antiseptic bandage and prescribe drugs that improve blood circulation, as well as fortifying agents.
Treatment of dry gangrene may include amputation of necrotic areas, which takes place after the appearance of the demarcation line (protective cushion), followed by the appointment of antibacterial drugs that prevent adherence of the bacterial flora.I must say that when necrosis of the tip of the nose, phalanges or earlobes diseased tissue can be torn away by yourself.
Since gangrene is quite a serious disease, it is necessary to carry out prevention of its occurrence, especially in children and pregnant women.We must remember that not only morning sickness, nephropathy or hematoma during pregnancy poses a risk to the woman and the fetus - slight damage to the skin's ability to develop into gangrene, so even a small wound should be subjected to antiseptic treatment.