[The AIDS patient in anesthesia].
Treatment of a patient with Acquired Immune Deficiency Syndrome (AIDS) is very challenging, and makes great demands on the anaesthesiologist. Any of an AIDS patient's vital organ systems may be compromised, either by the human immunodeficiency virus (HIV) itself, opportunistic infections, by tumours, or as a result of AIDS-related drug therapies. Infections of the lungs (e.g., Pneumocystis carinii pneumonia) are prevalent, and cardiac impairment can be found in as many as 50% of AIDS patients. In addition, disorders of the central and peripheral nervous system and water and electrolyte imbalances are often seen. Perioperatively, the AIDS patient is especially prone to infections as a result of a compromised immune system. The choice of anaesthetic procedure for the AIDS patient-aside from the type of operation-depends on the severity of the illness and progression of organ impairment. All anaesthesia personnel must be careful to avoid infection, as they frequently come in contact with the blood or body fluids of their patients. However, the risk of being infected by an AIDS patient is very low, provided hygiene regulations are followed strictly. The rate of seroconversion after accidental needle-stick injury is below 1%. If exposure does occur, regular serologic controls should be continued for one year. Prophylactic treatment with azidothymidine after exposition to HIV is recommended.