We also recorded end-tidal CO2
, Ppeak and Pmean inspiratory pressure at 3 time intervals: at 15, 30 and 45 minutes after tracheal intubation.
After each administration, and continuing through four hours post-dosing, end-tidal CO2
(ETCO2), oxygen saturation (SpO2) and respiratory rate were continuously monitored.
values were measured using a line connected to the nasal mask.
Earlier in 2014, Masimo announced the availability the ISA CO2 MOC-9 module, which provides end-tidal CO2
concentration and respiration rate.
After completion of surgery, but before reversal of the muscle relaxation, while the neurosurgical resident was applying the head bandage, we noticed a sudden fall in end-tidal CO2
from 31mmHg to 18, 11 and 0 within few seconds.
Breath-by-breath systems allow determination of end-tidal CO2
(PetCO2) as well as mixed-expired CO2 ([P.
The LifeCap handheld capnograph with Microstream technology continuously monitors end-tidal CO2
and respiratory rate, providing digital values along with crisp capnographic waveforms and trends.
The time to intubation (TTI) was calculated from the time the instrument entered the patient's oral cavity until end-tidal CO2
tracing was detected on the monitor after commencement of IPPV.
Mechanical ventilation was adjusted to maintain end-tidal CO2
tension 35- 40 mmHg throughout the surgery.
For both groups of patients, the following parameters were collected: temperature, systemic hemodynamic parameters, arterial blood gases (Chiron Diagnostics[R], Rapidlab 864), end-tidal CO2
(Siemens[R] ventilator capnography monitoring system) and cutaneous CO2 measurements.