Energy Expenditure

EE: Gas Collection Devices (2013)

• Assessment
  Is there a difference in RMR measurements related to different types of gas collection devices (such as face mask, mouthpieces with noseclips, or ventilated hood/canopy) in healthy and non-critically ill individuals?

  • Conclusion

    Based on the research reviewed, there is conflicting evidence regarding RMR measurements made comparing a ventilated hood with either mouthpiece/noseclip or face mask in healthy adults; this may be due to differences in patient comfort. One study in healthy children reported no significant differences between RMR measurements comparing mouthpiece/noseclip vs. face mask. Additional research comparing gas collection devices is needed.

  • Grade: III
    • Grade I means there is Good/Strong evidence supporting the statement;
    • Grade II is Fair;
    • Grade III is Limited/Weak;
    • Grade IV is Expert Opinion Only;
    • Grade V is Not Assignable.
    • High (A) means we are very confident that the true effect lies close to that of the estimate of the effect;
    • Moderate (B) means we are moderately confident in the effect estimate;
    • Low (C) means our confidence in the effect estimate is limited;
    • Very Low (D) means we have very little confidence in the effect estimate.
    • Ungraded means a grade is not assignable.
  • Evidence Summary: Is there a difference in RMR measurements related to different types of gas collection devices (such as facemask, mouthpieces with noseclips, or ventilated hood/canopy) in healthy and non-critically ill individuals?
    • Detail
    • Quality Rating Summary
      For a summary of the Quality Rating results, click here.
    • Worksheets
      • Forse RA. Comparison of gas exchange measurements with a mouthpiece, face mask, and ventilated canopy. Journal of Parenteral and Enteral Nutrition 1993;17:388-391.
      • McAnena OJ, Harvey LP, Katzeff HL, Daly JM. Indirect calorimetry: Comparison of hood and mask systems for measuring resting energy expenditure in healthy volunteers. J Parenter Enteral Nutri. 1986; 10: 555-557.
      • Mellecker RR, McManus AM. Measurement of resting energy expenditure in healthy children. JPEN J Parenter Enteral Nutr. 2009 Nov-Dec; 33(6): 640-645.
      • Segal KR. Comparison of indirect calorimetric measurements of resting energy expenditure with a ventilated hood, face mask, and mouthpiece. Am J Clin Nutr 1987;45:1420-1423. (Not used in Conclusion Statement Grade)
  • Search Plan and Results: EE: Gas Collection Devices in Healthy and Non-Critically Ill Individuals 2012