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Respiratory Care |

Comparison of External CPAP With CPAP Delivered Using Two Mechanical Ventilators

Hassan Hawa*, MA; James Yassin, MBBS; Martin Street, MBChB
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Brighton and Sussex University NHS Trust, Brighton, United Kingdom


Chest. 2012;142(4_MeetingAbstracts):940A. doi:10.1378/chest.1360231
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Abstract

SESSION TYPE: Respiratory Support Posters

PRESENTED ON: Wednesday, October 24, 2012 at 01:30 PM - 02:30 PM

PURPOSE: some intensivist still propose using external CPAP at the final stage of liberating patients from mechanical ventilation. We hypothesized that; external CPAP causes less work of breathing when compared to conventional mechanical ventilation.

METHODS: We asked a twenty healthy volunteers to breath through a tight fitted mask attached to the three devices under test at a random pattern. Participants were asked to fill a questionnaire during each breathing trial. The pressures at the mouth end were recorded using a digital manometer.

RESULTS: There were no difference between the mask pressures between the three devices. the results of the questionnaires were analyzed using Chi Square analysis and this did not show any statistical difference between the three devices in relation to the comfort of breathing.

CONCLUSIONS: We concluded that, the new mechanical ventilators do not cause more work of breathing when compared to an external CPAP, which makes the benefits of an external CPAP trial before liberating patient from mechanical ventilation of doubtful benefit.

CLINICAL IMPLICATIONS: There is no need to put the mechanically ventilated patient on an external CPAP to ensure the success of the weaning trial.

DISCLOSURE: The following authors have nothing to disclose: Hassan Hawa, James Yassin, Martin Street

No Product/Research Disclosure Information

Brighton and Sussex University NHS Trust, Brighton, United Kingdom

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