Local cooling
Local cooling. An extremely low temperature is required, a large degree of heat loss per unit time is sufficient. An important role is played by wind and humidity (wet freezing). In supercooled tissues there is a decrease in metabolism and oxygen consumption. The minimum metabolism is initially sufficient to maintain cell viability. With passive heating of the affected tissues, metabolism and oxygen consumption begin to increase rapidly, but spasmodic arteries can not provide such a need. The consequence of this is hypoxia with tissue necrosis. Only after restoration of blood circulation in frostbitten tissues can the degree and depth of necrotic changes be determined. "Instant frostbite" occurs when you directly contact deep-frozen subjects (carbon dioxide in the form of snow, liquid air, nitrogen, metals at critical temperatures). Due to the rapidity of the effect, there is no vascular reaction, after thawing the tissues restore their function rather quickly.
There are 4 degrees of frostbite: I degree - cooling with a duration of 40-60 minutes, usually only the skin is affected (pale, numb and stiff limbs). As warming develops a phase of hyperemia, edema. After 1-2 weeks, the symptoms of frostbite disappear, there remains an increased sensitivity to cold. Often on the hands or feet, itching and painful blue-red swelling ("swelling from frostbite"); II degree-spasm of blood vessels is more pronounced, and is common. Tissue hypoxia leads to the exit of plasma from the vessels with the formation of blisters with serous-bloody contents; III-IV degree - necrosis of subcutaneous tissue, IV stage - necrosis of tendons, muscles, bones. Finally, the depth of necrosis can be established only after 4-6 days. With extensive frostbite III-IV degree for 1-2 weeks, an increase in body temperature to 38 ° C, leukocytosis. Rejection of necrotic tissues of fingers lasts 3-4 weeks, stop - 2-3 months.
Treatment. Intensive warming of the whole body by placing it in a hot bath (except frost-bitten areas!), Infusion of heat of isotonic sodium chloride solution, 5% glucose, warm enema. Locally-light grinding (by hand, not by rough woolen fabrics - the possibility of infection of the skin!). Smearing of the skin with alcohol or solutions of antiseptics. Aseptic dressing. Spasmolytics, vascular analeptics (compliance 2-4 ml intravenously), rheopolyglucin, heparin and other drugs that reduce the spasm of the peripheral vessels of the affected segment and improve microcirculation, plasmapheresis. At III-IV degree of frostbite, necrectomy is indicated.
The prognosis is serious.
- Surgical diseases
- Abscess
- Abscess appendicular
- Abscesses of the abdominal cavity
- Abscess of the Douglas space
- Intestinal abscess
- Abscess of the lung
- Soft tissue abscess
- Abscesses of soft tissues after injection
- Abscess of liver
- Amoebic liver abscess
- Prostate adenoma
- Actinomycosis
- Aneurysm
- False aneurysm
- True aneurysms
- Aneurysm of the aortic arch
- Aneurysm of descending thoracic aorta
- Dissecting Aneurysm
- Aneurysm of the abdominal aorta
- Aneurysm of peripheral vessels
- Arteriovenous aneurysm
- Aneurimas of the heart
- Appendicitis acute
- Perforation of the appendage
- Appendicular infiltration
- Pielephlebitis
- Atheroma
- Bronchoectasis
- Varicose veins
- Varicose veins of the spermatic cord
- Dropsy of testis and spermatic cord
- Rectal prolapse
- Gangrene gas
- Gangrene lung
- Hemorrhoids
- Hydradenite
- Gynecomastia
- Hernia
- Internal hernias
- Hernias of the esophagus
- External hernias
- Herniated hernias
- Herniated hernia
- Hernia of the white line
- Hernia postoperative ventral
- Herniated hernia
- Rare hernias
- Pincushion
- Phlegmon hernial sac
- False infringement of a hernia
- Hernias with inflammation
- Dumping syndrome
- Diverticulum
- Esophagus diverticulum
- Cervical diverticulum
- Bifurcation diverticulum
- Epiphrenic diverticulum
- Epiphrenic diverticulum
- Diverticulum of the stomach
- Diverticulum of the duodenum
- Meckel's diverticulum
- Jaundice mechanical
- Bile duct stones
- Ventilated stone of choledoch
- Papillotenosis
- Stricture of bile ducts
- Cancer of the head of the pancreas
- Cholelithiasis
- Urinary retention acute
- Zollinger-Ellison syndrome
- Foreign bodies of bronchi
- Foreign bodies of the stomach
- Foreign bodies of the esophagus
- Foreign bodies of soft tissues
- Carbuncle
- Brushes and fistulas of the neck are lateral
- Cysts and fistulas of the neck median
- Colitis ulcerative ulcerative
- Coccygeal epithelial passage
- Cryptorchidism
- Bleeding
- Bleeding internal
- Bleeding gastrointestinal
- Varicose veins
- The Mallory-Weiss Syndrome
- Bleeding into the abdominal cavity
- Bleeding pulmonary
- Bleeding external
- Parenchymal hemorrhage
- Crohn's disease
- Lymphadenitis
- Lymphangitis
- Mastitis
- Putrefactive mastitis
- Acute non-lactational mastitis
- Chronic mastitis
- Megacolon
- Mediastinitis
- Intestinal obstruction
- Paralytic intestinal obstruction
- Mechanical intestinal obstruction
- X-ray diagnostics
- Specific types of intestinal obstruction
- Ingrown throat
- Frostbite
- Burn
- Occlusion of the main arteries
- Acute occlusion of the vessels of the extremities
- Acute occlusion of mesenteric vessels
- Chronic occlusions of arterial vessels
- Obtiterating atherosclerosis
- Aortic ileal type
- Hips and popliteal type
- Peripheral type
- Occlusion of aortic arch branches
- Occlusion of carotid arteries
- Occlusion of the subclavian artery
- Takayasu's syndrome (absence of pulse)
- Chronic occlusion of mesenteric vessels (abdominal toad)
- Stenosis of the renal arteries
- Obliterating thrombangitis
- Raynaud's disease
- Orcoepididymitis
- Acute abdomen
- Acute pancreatitis
- Chronic pancreatitis
- Acute cholecystitis
- Panaritium
- Panaritium cutaneous
- Paronichy
- Panaritium subungual
- Panaritium tendinous
- Panaritium articular
- Panaritium bone
- Penetrating ulcer of the stomach and duodenum
- Peritonitis
- Peritonitis chronic
- Piopevneumotorax
- Pneumothorax spontaneous
- Postcholecystectomy syndrome
- Perforated ulcer
- Covered perforation
- Bedsore
- Prostatitis
- Wounds
- Fistulas of the rectum
- Stenosis of the outlet stomach
- Fracture of anus
- Urethritis
- Phimosis, paraphimosis
- Phlebothrombosis
- Occlusion of subclavian vein
- Phlegmon
- Furuncle
- Cholangitis
- Electric trauma
- Empyema of the pleura
- Congenital intestinal obstruction
- Atresia of the anus
- Congenital cholangiopathy of newborns
- Pylorostenosis
- Embryonic hernia (hernia of umbilical cord)
- Exstrophy of the bladder
- Dropsy of shells of testis and spermatic cord
- Surgical diseases of the chest
- Congenital diaphragmatic hernia
- Congenital cysts of the lungs
- Pneumothorax
- Tracheophishoprine fistula
- Mastitis of newborns
- Acute hematogenous osteomyelitis
- Peritonitis in newborns
- Acute paraproctitis
- Necrotic phlegmon of newborns
Comments
When commenting on, remember that the content and tone of your message can hurt the feelings of real people, show respect and tolerance to your interlocutors even if you do not share their opinion, your behavior in the conditions of freedom of expression and anonymity provided by the Internet, changes Not only virtual, but also the real world. All comments are hidden from the index, spam is controlled.