Medicina intensiva
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Blood cultures are the gold standard for the etiological diagnosis of bacteremia, though false-positive results are relatively frequent primarily due to contamination from skin flora during sample extraction. Correct skin antisepsis is important for reducing the bacterial load and opportunities for contamination. ⋯ Some authors even suggest that the chosen antiseptic is irrelevant to the contamination rate, provided the blood culture extraction method is adequate and is performed by a trained professional. This article is part of a supplement entitled "Antisepsis in the critical patient", which is sponsored by Becton Dickinson.
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Skin antisepsis in invasive procedures aims to reduce the bacterial load at the site of incision or puncture. Alcohol solutions seem to be more effective in preventing surgical site infection. ⋯ Given the potential neurotoxicity of alcohol and chlorhexidine gluconate, contact of antiseptic solutions with the central nervous system should be avoided. This article is part of a supplement entitled "Antisepsis in the critical patient", which is sponsored by Becton Dickinson.
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Surgical wound infection is one of the main complications of patients undergoing surgery and has significant clinical and economical consequences, especially when it affects prosthetic implants or is caused by multidrug resistant bacteria. Cutaneous preparation is one of the main preventive measures. ⋯ Regarding preparation of the incision area and surrounding zone, the use of an alcohol-based antiseptic is generally advised, preferably alcoholic chlorhexidine, due to its high antibacterial activity and prolonged residual effect, respecting the evaporation drying time. This article is part of a supplement entitled "Antisepsis in the critical patient", which is sponsored by Becton Dickinson.
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Paroxysmal sympathetic hyperactivity (PSH) is a potentially life-threatening neurological emergency secondary to multiple acute acquired brain injuries. It is clinically characterized by the cyclic and simultaneous appearance of signs and symptoms secondary to exacerbated sympathetic discharge. The diagnosis is based on the clinical findings, and high alert rates are required. ⋯ However, the excitation-inhibition model is the theory that best explains the different aspects of this condition, including the response to treatment with the available drugs. The key therapeutic references are the early recognition of the disorder, avoiding secondary injuries and the triggering of paroxysms. Once sympathetic crises occur, they must peremptorily aborted and prevented. of the later the syndrome is recognized, the poorer the patient outcome.
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To determine the risk of microbiological contamination with hospital use high- and low-flow bubbling humidifiers. ⋯ On one hand, there seems to be a low risk of contamination during the first weeks of use of prefilled humidifiers, which allows multiple use in different patients, without a risk of cross-contamination. On the other hand, it should be underscored that handling reusable humidifiers without correct aseptic measures can increase the risk of contamination; replacing reusable humidifiers with prefilled models therefore could be the safest option.