Document Detail

Neopuff T-piece mask resuscitator: is mask leak related to watching the pressure dial?
MedLine Citation:
PMID:  20377532     Owner:  NLM     Status:  MEDLINE    
AIM: The aim of the study is to compare mask leak and delivered ventilation during Neopuff (NP) mask ventilation in two modes: (i) with NP pressure dial hidden and resuscitator watching chest wall (CW) rise with, (ii) CW movement hidden and resuscitator watching NP pressure dial.
METHODS: Thirty-six participants gave mask ventilation to a modified manikin designed to measure mask leak and delivered ventilation for two minutes in each mode randomly assigned. Paired t-tests were used to analyse differences in mean values. Linear regression was used to determine the association of mask leak with delivered ventilation.
RESULTS: Of 7277 inflations analysed, 3621 were observing chest wall mode (CWM) and 3656 observing NP mode (NPM). Mask leak was similar between the groups; 31.6% for CWM and 31.5% (p = 0.56) for NPM. There were no significant differences in airways pressures and expired tidal volumes (TVe) between modes. Mask leak was strongly associated with TVe (R = -0.86 p < 0.0001) and with peak inspiratory pressure (PIP) (R = -0.51 p < 0.0001). TVe was associated with PIP (R = 0.51 p < 0.0001).
CONCLUSION: This study provides reassurance that NP mask leak is not greater when resuscitators watch the NP pressure dial. Mask leak is related to TVe. Mask ventilation training with manikins should include tidal volume measurements.
Mark B Tracy; J Klimek; V Shingde; M Hinder; R Maheshwari; S K Tracy
Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Acta paediatrica (Oslo, Norway : 1992)     Volume:  99     ISSN:  1651-2227     ISO Abbreviation:  Acta Paediatr.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-10-12     Completed Date:  2011-02-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9205968     Medline TA:  Acta Paediatr     Country:  Norway    
Other Details:
Languages:  eng     Pagination:  1314-8     Citation Subset:  IM    
Copyright Information:
© 2010 The Author(s)/Journal Compilation © 2010 Foundation Acta Paediatrica.
Nepean Hospital Sydney West Area Health Service, Sydney, Australia.
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MeSH Terms
Cardiopulmonary Resuscitation / instrumentation*,  methods
Cross-Over Studies
Equipment Failure Analysis*
Infant, Newborn
Linear Models
Positive-Pressure Respiration / instrumentation*,  methods
Prospective Studies
Respiratory Mechanics
Tidal Volume

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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