MCCD ventilation - Case-Figure 7

The patient received a ventilation rate of 100 breaths per minute. This rate corresponds with the MCCD frequency and ventilation was being triggered in each decompression phase. The drop in the ventilation rate between 18:50 and 19:10 minutes was due to a leak in the airway circuit. During the period of automatic ventilation, oxygen saturation was between 80 and 90%. Thus, the patient was adequately ventilated. The etCO2 ranged between 22-30mmHg from the beginning of the recording till 23:28 minutes after, suggesting good quality CPR with adequate circulation. After 23:28 min there was an increase in etCO₂ up to 43mmHg, an early indicator of ROSC. The steep decrease after 24:32 min was due to the cessation of ventilation and chest compressions, and hence a cessation in CO₂-exhalation. The patient had a ROSC after 25 minutes