Effects of Square Waves and Decelerating Waves on Ventilation Quality During Chest Compressions During Cardiopulmonary Resuscitation
Objective To explore the effects of square waves and decelerating waves on ventilation quality during chest compressions during cardiopulmonary resuscitation (CPR). Methods A retrospective analysis was performed on 86 patients with cardiac arrest admitted to the department of emergency,the Sixth Affiliated Hospital of South China University of Technology from January 2022 to August 2023. Patients were grouped according to the different gas flow modes they received. A total of 43 patients receiving square wave were used as control group and 43 patients receiving deceleration wave were used as study group. The ventilation quality index,respiratory mechanics index and CRP effect of the two groups were compared. Results The proportion of ≤ 65 cmH2O in the study group was 100%,which was higher than 83.7% in the control group (P<0.05). The peak airway pressure in the study group was (31.3±2.2) cmH2O,lower than (40.9±2.6) cmH2O in the control group (P<0.05). The recovery time of heartbeat and respiration in the study group was (6.3±3.1) min,shorter than (7.4±3.2) min in the control group (P<0.05). Conclusion The use of deceleration waves during chest compressions during CRP can reduce the highest airway pressure level in patients,thereby effectively reducing the risk and probability of barotrauma during the treatment process. At the same time,the relevant respiratory mechanics indicators of patients under deceleration waves are significantly more ideal,which can also shorten the recovery time of their heartbeat and respiration.