Randomized crossover trial of a pressure sensing visual feedback system to improve mask fitting in noninvasive ventilation.

Brill, Anne-Kathrin; Moghal, Mohammad; Morrell, Mary J; Simonds, Anita K (2017). Randomized crossover trial of a pressure sensing visual feedback system to improve mask fitting in noninvasive ventilation. Respirology, 22(7), pp. 1343-1349. Wiley 10.1111/resp.13074

[img] Text
Brill_et_al-2017-Respirology.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (7MB) | Request a copy

BACKGROUND AND OBJECTIVE A good mask fit, avoiding air leaks and pressure effects on the skin are key elements for a successful noninvasive ventilation (NIV). However, delivering practical training for NIV is challenging, and it takes time to build experience and competency. This study investigated whether a pressure sensing system with real-time visual feedback improved mask fitting. METHODS During an NIV training session, 30 healthcare professionals (14 trained in mask fitting and 16 untrained) performed two mask fittings on the same healthy volunteer in a randomized order: one using standard mask-fitting procedures and one with additional visual feedback on mask pressure on the nasal bridge. Participants were required to achieve a mask fit with low mask pressure and minimal air leak (<10 L/min). Pressure exerted on the nasal bridge, perceived comfort of mask fit and staff- confidence were measured. RESULTS Compared with standard mask fitting, a lower pressure was exerted on the nasal bridge using the feedback system (71.1 ± 17.6 mm Hg vs 63.2 ± 14.6 mm Hg, P < 0.001). Both untrained and trained healthcare professionals were able to reduce the pressure on the nasal bridge (74.5 ± 21.2 mm Hg vs 66.1 ± 17.4 mm Hg, P = 0.023 and 67 ± 12.1 mm Hg vs 60 ± 10.6 mm Hg, P = 0.002, respectively) using the feedback system and self-rated confidence increased in the untrained group. CONCLUSION Real-time visual feedback using pressure sensing technology supported healthcare professionals during mask-fitting training, resulted in a lower pressure on the skin and better mask fit for the volunteer, with increased staff confidence.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Department of Gastro-intestinal, Liver and Lung Disorders (DMLL) > Clinic of Pneumology
04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology > Centre of Competence for Psychosomatic Medicine

UniBE Contributor:

Brill, Anne-Kathrin


600 Technology > 610 Medicine & health








Rahel Holderegger

Date Deposited:

14 Dec 2017 15:02

Last Modified:

05 Nov 2019 10:42

Publisher DOI:


PubMed ID:


Uncontrolled Keywords:

education masks noninvasive ventilation respiratory insufficiency simulation training





Actions (login required)

Edit item Edit item
Provide Feedback