[Nasal or oranasal face mask mechanical ventilation in the treatment of acute respiratory distress syndrome].

OBJECTIVE

To Evaluate the effect of nasal or oranasal face mask mechanical ventilation (FMMV) in the treatment of patients with acute respiratory distress syndrome(ARDS).

METHODS

16 ARDS patients were separated into two groups: infection group and non-infection group. The former had 6 cases with pneumonia and 1 case with sepsis; the later had 5 cases with multiple fracture, 2 with operation of intestines obstruction, 1 with operation of spleen rupture, 1 with hepatectomy. In Infection group, the respiratory rate(RR) was (46 +/- 5) times/min, the arterial blood pH 7.49 +/- 0.05, CO2 partial pressure(PaCO2) was (32 +/- 4) mm Hg, and oxygenation index (OI) (144 +/- 23) mm Hg. In non-infection group, the RR, pH, PaCO2, OI was (41 +/- 6) times/min, 7.49 +/- 0.13, (32 +/- 5) mm Hg, (156 +/- 51) mm Hg. All patients were linked with ventilator via nasal or ornasal mask. Pressure support ventilation (PSV) and positive end-expiratory pressure (PEEP) were selected.

RESULTS

All patients successfully received FMMV. In infection group, RR and OI returned to (45 +/- 7) times/min (P > 0.05) and (195 +/- 30) mm Hg(P < 0.05) respectively after 2-8 hours via FMMV. But in non-infection group, the RR and OI were (35 +/- 4) times/min (P < 0.05) and (228 +/- 90) mm Hg(P < 0.05). 2 cases(29%) in infection group and 8 cases(89%) in non-infection were successfully weaned from FMMV.

CONCLUSION

FMMV could be as the first choice in ARDS patients without infection, and airway intubation should be given in infectious patients as early as possible.