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Revista chilena de infectología

versión impresa ISSN 0716-1018

Resumen

ARANCIBIA H, Francisco  y  DIAZ P, Orlando. Severe community-acquired pneumonia in adults . Rev. chil. infectol. [online]. 2005, vol.22, suppl.1, pp.s46-s51. ISSN 0716-1018.  http://dx.doi.org/10.4067/S0716-10182005000400007.

Patients with severe community acquired pneumonia (CAP) need continuous surveillance and monitoring at intensive care units (ICU), where they can receive specialized support as mechanical ventilation and/or hemodynamic support. Patients that require ICU admittance represent 10 to 30% of all patients interned because a pneumonia. In this category, high complication rate, prolonged hospital stay and high mortality rate are the rule. The American Thoracic Society (ATS) criteria for severe pneumonia establishes the following main criteria: necessity of mechanical ventilation and presence of septic shock; minor criteria: systolic blood pressure < 90 mmHg, radiological multilobar involvement and PaO2/FiO2 < 250 mmHg. British Thoracic Society (BTS) criteria for severe CAP are: respiratory rate over 30 breaths/min, diastolic blood pressure under 60 mmHg, BUN > 20 mg/dl and mental confusion. In all patients with CAP it is recommended the evaluation of its severity at admission. This evaluation should be done in conjunction with an experienced physician, and if criteria for poor prognosis are met, an early admission to ICU is recommended. ATS and BTS modified criteria (CURB) are useful in this procedure. In severely ill patients with CAP it is recommended to perform the following microbiological analysis: sputum Gram stain and culture, blood culture, pleural fluid Gram stain and culture, if present and tapped, Legionella pneumophila urine antigen test, influenza A and B antigen detection tests (epidemic period: autumn and winter), and serology for atypical bacteria (Mycoplasma pneumoniae and Chlamydia pneumoniae)

Palabras clave : pneumonia; diagnosis; respiratory failure; severe sepsis.

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