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WithdrawnNCT01103947Updated Apr 7, 2017

EcoAnaesthesia Facemask Versus Standard Facemask During Anesthesia Induction

An interventional study of EcoAnaesthesia facemask first and Portex Adult (Standard) facemask first in Anesthesia Induction, sponsored by University of Louisville. Withdrawn at 1 site in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2017-04-07.

Sponsored by University of Louisville · Not applicable, Interventional, and Health services research

Why this study was withdrawn
Not able to finalize funding
Phase
Not applicable
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This study will evaluate the efficiency of the EcoAnesthesia mask and its advantages over the standard facemask used in our practice. The satisfaction by the anesthesia provider and its ease of use may change the standard practice in airway management. In addition to these additional effects on patient safety, the facemask is affordable and may reduce the environmental burden of anesthesia waste.

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Conditions studied

  • Anesthesia Induction

Keywords

  • Anesthesia induction
  • Facemask
  • surgery
03

In context

Lead sponsor

University of Louisville is the lead sponsor of 284 studies on the registry; 53 are open to participants now.

Of its 20 completed or terminated interventional studies of FDA-regulated products, 7 (35%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • ASA physical status class 1-2
  • Undergoing elective surgery
  • Aged between 18 and 75 years

Exclusion criteria

Exclusion Criteria:

  • Severe acute or chronic lung disease requiring oxygen-therapy;
  • Hiatus hernia with gastro-esophageal reflux or other esophageal or gastric abnormalities that require a rapid sequence induction;
  • Food intake within the last 6 hours or clear fluid intake within 2 hours prior to surgery;
  • Ischemic or congenital heart disease;
  • Pregnancy (confirmed by a pregnancy test);
  • Patient is scheduled for regional anesthesia and denies conductance of general anesthesia during the surgical procedure;
  • Known difficult intubation in the past.
  • Difficult Mask Ventilation. Patients having any two of the criteria listed below will be Categorized as "Difficult Mask Ventilation (DMV)" (5,13,14) and will be excluded from enrollment. All others will be classified as "Normal." Age > 55 BMI > 26 kg/m2 Lack of teeth Presence of beard History of snoring Limited mandibular protrusion
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Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Single (Participant)
Enrollment
0 participants (actual)

Study arms

  • Active comparator
    EcoAnesthesia Mask first

    Both the "standard adult facemask" (Portex Adult, USA) and the new facemask (EcoAnesthesia Mask, Intersurgical, Inc., Liverpool, NY, USA) will be tested in each patient for three minutes. The order of usage of each mask will be randomly assigned to each patient. This group will receive the EcoAnesthesia Mask first.

    Device: EcoAnaesthesia facemask first · Device: Portex Adult (Standard) facemask second

  • Active comparator
    Standard mask first

    Both the "standard adult facemask" (Portex Adult, USA) and the new facemask (EcoAnesthesia Mask, Intersurgical, Inc., Liverpool, NY, USA) will be tested in each patient for three minutes. The order of usage of each mask will be randomly assigned to each patient. Patients in this arm will receive the standard mask first.

    Device: Portex Adult (Standard) facemask first · Device: EcoAnesthesia facemask second

Interventions

  • DeviceEcoAnaesthesia facemask first

    The trial facemask will be used before the standard one.

  • DevicePortex Adult (Standard) facemask first

    The standard facemask will be applied before the trial device.

  • DevicePortex Adult (Standard) facemask second

    The standard facemask will be applied after the trial device

  • DeviceEcoAnesthesia facemask second

    The trial facemask will be used after the standard one.

06

What researchers measure

Primary outcomes

  1. End-tidal oxygen concentration

    End-tidal oxygen concentration after 3 minutes with the mask that the patient was first randomized to use.

    Time frame: three minutes

Secondary outcomes

  1. Maximum airway pressure

    Maximum airway pressure, which will be necessary to reach a tidal volume of at least 6 ml/kg every minute during the 3 minutes of mask ventilation with each device.

    Time frame: End of 3 minutes with each mask

07

Study locations

1 site
  • University of Louisville Hospital
    Louisville, Kentucky 40202, United States
08

References and documents

Publications

  • Kheterpal S, Martin L, Shanks AM, Tremper KK. Prediction and outcomes of impossible mask ventilation: a review of 50,000 anesthetics. Anesthesiology. 2009 Apr;110(4):891-7. doi: 10.1097/ALN.0b013e31819b5b87. PubMed 19293691 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 7, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01103947
Lead sponsor
University of Louisville
Responsible party
Sponsor
First posted
Apr 15, 2010
Start date
Apr 2010
Primary completion
Dec 2013
Completion
Dec 2014
Last update
Apr 7, 2017

Study contacts

Detlef Obal, MD
principal investigator · University of Louisville

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Apr 2017. You cannot join it, but the record below documents what was studied.

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