Surgical Infection. History. Lister: 1867 On the antiseptic principle in practice of surgery Louis Pasteur, Ignaz Semmelweis, Theodor Kocher and William S. Halsted Application of antiseptic practices allowed infection rate of operation to drop from 90% to 10%. History.
The infection required operative intervention, including that complicated from trauma, operation and burns, et al.
Caused by the invasion, resident and proliferation of pathogens, such as bacteria, viruses and fungi et al.
Non-specific infection: suppurative infection
presentation: redness, swelling, hot, soreness
pathogens: Staphylococci aureus, Streptococci.
Specific infection: tuberculosis, tetanus, gas gangrene, fungi
Source of pathogens:
Causes of surgical infection:
normal bacterial flora---pathogenic bacteria
low host resistance
toxins: exotoxin, endotoxin
numbers of bacteria: 105
injury of skin or mucosa
skin or mucosa diseases
to be chronic
imaging: US, X-ray,CT, MRI
Furunculosis: infection of several hair follicles in a circumscribed area.
incision and draninage
Skin wound local inflammation
lymphadenitis systemic inflammation
Redness of skin with clear boundary
Edema of proximal lymphanode
lateral nail fold trauma redness, pain
deep to the nail
paronychia spread or penetration wound
Treatment: incision and drainage
infection of the flexor tendon sheath, bursts
and palm spaces, which is usually caused by a
puncture wound to the volar aspect of the digit
irrigation and drainage