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Medicina Intensiva

versão impressa ISSN 0210-5691


FERNANDEZ-VIVAS, Miguel et al. Use of non-invasive ventilation in acute respiratory failure: Multicenter study in intensive care units. Med. Intensiva [online]. 2009, vol.33, n.4, pp.153-160. ISSN 0210-5691.

Objectives. Study the use of non-invasive ventilation (NIV) in patients with acute respiratory failure in intensive care units (ICUs) in Spain. Methods. A questionnaire was sent to 254 ICUs, after which, they were invited to participate in a multicenter, retrospective study, providing detailed information on ventilated patients. Results. Answers were received from 123 hospitals. Of these, 119 used NIV, although its use varied greatly. NIV is the treatment of choice in 89% of the units for chronic obstructive pulmonary disease (COPD), in 79% for acute pulmonary edema (APE), in 53% for postextubation failure, in 53% for pneumonia 53%, and in 17% for acute respiratory distress syndrome (ARDS). It was used occasionally in COPD in 11% of the units, and in 21% of the units for APE. Eighteen hospitals provided additional information on 432 ventilated patients, 232 (54%) of whom received NIV as first line therapy. Presence of pneumonia or acute respiratory distress syndrome (ARDS) was an independent predictive factor of NIV failure (ORa = 5.71; CI 95%, 1.83-17.8; p = 0.003). Admission in a unit with experience in NIV in > 50 patients/year (ORa = 0.22; CI 95%, 0.07-0.63; p = 0.005) and a higher PaO2/FiO2 ratio after one hour of ventilation (ORa = 0.98 per point; CI 95%, 0.97-0.99; p < 0.001) were protector factors. Conclusions. In Spain, NIV is widely used but it may continue to be underused in COPD and APE. The diagnosis of pneumonia or ARDS was an independent predictive risk factor. Admission in an ICU with NIV in more than 50 patients/year also have higher PaO2/FiO2 ratio after one hour of ventilation were predictive factors of success.

Palavras-chave : Acute respiratory failure; Epidemiologic study; Intensive care unit; Mechanical ventilation; Multicenter study; Non-invasive ventilation.

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