Reliability and validity of multi-contact pressure measurement system for evaluating appropriate NPPV mask fitting in healthy adults

DOI
  • Shikama Maiko
    Department of Mathematical Health Science, Graduate School of Medicine, Osaka University
  • Noguchi Hiroshi
    Department of Life Support Technology（Molten）, Graduate School of Medicine, The University of Tokyo
  • Nakagami Gojiro
    Global Nursing Research Center, The University of Tokyo Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo
  • Sanada Hiromi
    Global Nursing Research Center, The University of Tokyo Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo

Bibliographic Information

Other Title
  • 健常成人における適切なNPPVマスクフィッティング評価のための多地点接触圧測定機器の信頼性・妥当性の検証

Search this article

Abstract

Background: Noninvasive positive pressure ventilation（NPPV）mask-related pressure injuries occur due to improper fit of the mask. We developed a continuous multi-contact pressure measurement system between the NPPV mask and face to evaluate the mask fitting objectively. This study aimed to evaluate the reliability and validity of the measurement system. <br>　Methods: This study involved 20 volunteers who could fit a medium-sized NPPV oronasal mask and 1 rater. For the assessment of intra-rater reliability, and agreement, the contact pressure was measured thrice for 1 min after fitting the NPPV mask and adjusting the leakage volume to approximately 50 L/min. For known-groups validity, we compared the contact pressures between masks with a lower strap tension of > 200 gf and those with a strap tension of approximately 0 gf, the contact pressures were measured once for 10 seconds. This study protocol was approved by an ethics committee. <br>　Results: The intraclass correlation coefficient ranged from 0.79 to 0.99, standard error of measurement ranged from 0.3 to 5.6 mmHg, and small detectable change ranged from 0.9 to 15.6 mmHg. For known-groups validity, any contact pressure values of masks with a strap tension of > 200 gf were significantly higher than those with a strap tension of approximately 0 gf at all locations（P < 0.001）. <br>　Conclusions: Our measurement system showed high intra-rater reliability and adequate agreement and knowngroups validity to evaluate the NPPV mask fitting in healthy adults with a medium-sized face.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top