• Minerva anestesiologica · Mar 2001

    Comparative Study

    Non-invasive pressure support ventilation in acute hypoxemic (non hypercapnic) respiratory failure. Observations in Respiratory Intermediate Intensive Care Unit.

    • C Mollica, G Brunetti, M Buscajoni, L Cecchini, E Maialetti, M Marazzi, R Principe, R Sabato, and V E Antonini.
    • Azienda Ospedaliera, S. Camillo-Forlanini, STIRS, Rome, Italy.
    • Minerva Anestesiol. 2001 Mar 1;67(3):107-15.

    BackgroundNon-invasive positive pressure support ventilation (NIPSV).MethodsIn patients with acute hypoxaemic (PaO2/FiO2 &Mac178;100) non hypercapnic respiratory failure (ARF) admitted to a Respiratory Inter-mediate Intensive Care Unit of a general Hospital, between January 1993 and December 1997.ResultsIn 21 selected patients (PaO2/ FiO2T0=82+/-9) NIPSV improved PaO2 in 13/21 patients (Group A) and did not improve in 8/21 patients (Group B) (PaO2/FiO2T1=154+/-25 in Group A vs PaO2/FiO2T1=106+/-7.5 in Group B, p=0.00001). Upon admission the two groups did neither significantly differ for blood gas values (PaO2/FiO2T0=84+/-9.6 in Group A vs 79.8+/-8.7 in Group B), nor for clinical status (APACHE II=19.8+/-5 in Group A vs 24.6+/-7 in Group B). Shorter duration of NIPSV in Group B patients (11.2+/-19.7 hrs vs 35.3+/-32.3 hrs in Group A, p=0.047), in spite of a rise in PEEP (9.3+/-2.3 in Group B vs 5.5+/-2.4 in Group A, p=0.003) and Pressure Support (18.7+/-1.8 in Group B vs 15+/-3.2 in Group A, p=0.004) was due to onset of conditions which required shifting from NIPSV to endotracheal intubation (ETI).Outcome8/21 patients were successfully treated by only NIPSV. 8/21 patients were intubated. 5/21 patients dead in RIICU; 1 month survival: 9/21 patients. Side effects: mask intolerance (3/21); skin necrosis (1/21); pneumothorax (1/21).ConclusionsNIPSV may be tried in ARF patients to improve PaO2 and avoid ETI.

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