e. Next Steps:
i. Coordinating Center to confirm there was one vote/site as results were
very close.
ii. We will modify SUS-04 to exclude ASA 5 & 6 cases. After tallying votes,
we will maintain the 30-minute exclusion from the measure.
iii. Create a new measure to assess very low gas flow 1L/min. Can
anticipate this new measure to be published within 3-6 months.
6. SUS-02 – Eva Lu-Boettcher, University of Wisconsin
a. SUS-02: Global Warming Footprint, Maintenance
b. Recommend updating calculation to use GWP20 vs. GWP100 for inhaled agents.
Would also recommend creating a new measure that aligns with SUS-02 but
uses the Cuveele method to calculate carbon footprint as it is more accurate but
allows sites to transition to this method over time.
c. Discussion:
i. Blake Wilson (MyMichigan): Would a change to GWP20 underestimate
N2O environmental impact?
1. Nirav Shah (MPOG Coordinating Center): I think GWP20 and
GWP100 for nitrous are the same, in the sources we used.
ii. Douglas Colquhoun (MPOG Associate Research Director): Digging into
this, we’re likely underestimating carbon footprint by about 16% with
the current SUS-02 calculation. By converting to the Cuveele method,
we would likely be underestimating by about 7%.
d. Vote: