
the time when the fraction of inspired halogenated hydrocarbons and nitrous
oxide is 0.
iv. Inclusions: Patients administered halogenated hydrocarbons and/or nitrous
oxide, for greater than or equal to 30 minutes from placement of the airway
device to removal of the airway device.
v. Exclusions:
1. Cases in which halogenated hydrocarbons and nitrous oxide are NOT
used
2. Cases with maintenance period < 30 minutes
3. Cases with >20% of Fresh Gas Flow values manually entered during the
case (automated capture of FGF required)
vi. Responsible Provider(s): All providers signed in for at least 30 minutes during the
maintenance period of anesthesia (intubation to extubation).
vii. Method for determining Responsible Provider: All providers signed in while
patients are administered halogenated hydrocarbons, and/or nitrous oxide, for
more than, or equal to, 30 minutes from placement of the airway device to
removal of the airway device. See ‘Other Measure Build Details’ section for
algorithm for determining measure start and end times.
viii. Questions for Quality Committee:
1. Will use % inspired MPOG concepts for halogenated agents and nitrous
(not expired versions of the agents). So if a site only
documented/mapped to the expired concept, they would be excluded
from the measure for all cases.
a. David Robinowitz (UCSF): Recommendation to capture set
concentrations of vaporizer instead of inspired % due to time lag
between change vaporizer setting to inspired % captured by gas
analyzer.
b. Anshuman Sharma (Wash U): Recommendation to assume
vaporizer set as zero when expired>inspired %.
c. Coordinating Center recommends to continue case review of the
measure using inspired % initially since most sites consistently
document this and the goal is to include as many sites as possible
and increase overall awareness. As data capture issues arise, will
identify a pragmatic way to move forward to increase accuracy.
2. To determine Measure Start, we’ve used the following algorithm:
a. Placement of endotracheal tube, or supraglottic airway (LMA,
COPA), if not available
b. Anesthesia Induction End, If not available, then
c. Anesthesia Induction Start. If not available, then
d. Procedure Start. If not available, then
e. Patient in Room. If not available, then
f. Anesthesia Start
3. Should the measure account for the time before induction or the time
after extubation to attempt to capture excess flow situations when the
agent/flows are left on accidentally?
a. Dr. Anshuman Sharma (WashU): Recommends that ASPIRE
captures the scenarios when agents/flows are left on