Masimo announced today that in a new study that compared the end tidal carbon dioxide values (EtCO2) from both the Masimo EMMA capnograph
and a conventional sidestream capnography device to the gold-standard carbon dioxide measurement, arterial blood gas (PaCO2), EMMA produced "reliable" values and had similar accuracy as sidestream capnography.
This accounts for phase one of the capnograph
where, even though expiration has begun, there is no movement of the graph from baseline (see Figure 1, right).
Based on types of capnograph
, the sidestream capnograph
segment dominated the capnography equipment market in 2014, with a share of around 52.
The NICO 2 device functions as a capnograph
, pulse oximeter and gas flow monitor.
But the volumetric capnograph
) provides additional information on pulmonary function by analyzing the partial pressure of C[O.
A trial compared the use of a portable capnograph
with a disposable colorimetric C[O.
Clinical Relevance: Emerging ideas propose that a capnograph
could be used to detect CO2 levels that may result in inappropriate acid-base chemistry in the body.
Nonin Medical's easy-to-use RespSense[TM] tabletop capnograph
features proven MedAir[TM] EtCO2 technology for continuous monitoring, as well as simple EtCO2 spot-checks.
The completed study (American Journal of Critical Care, March 2006) demonstrated equivalent performance of the colormetric device and the capnograph
is considered the gold standard, but remember that during CPR the carbon Dioxide released from the lungs may be minimal and so there could be a false negative reading.
A mainstream capnograph
with a neonatal sensor (C[O.
2] was measured using infrared spectroscopy with a sidestream aspirator at a flow rate of 150 mL/min (Nellcor N-2500 Capnograph
, Nellcor Inc, Hayward, Calif).