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Objective: To analysis effect of active abdominal compression-decompression cardiopulmonary resuscitation (AACD-CPR) and standard cardiopulmonary resuscitation (STD-CPR) on oxygen metabolism prognostic of cardiac arrest (CA), to evaluate treatment effect of AACD-CPR. Methods: Breathing, cardiac arrest patients without STD-CPR and AACD-CPR contraindications was collected from October 1, 2015 to May 31, 2017 in Zhengzhou people's Hospital, CA time less than 30 minutes, and all the patients were randomly divided into STD-CPR group and AACD-CPR group. All patients were given the same rescue measures, if required to give defibrillation defibrillation. STD-CPR group in accordance with the guidelines for CPR operation (2015 Edition), AACD-CPR group recovered using abdominal lifting and compression cardiopulmonary resuscitation instrument. Recording oxygen metabolism, hemodynamics and prognosis of two-group patients in the recovery process. Results: A total of 69 cases, STD-CPR group of 34 cases, AACD-CPR group of 35 cases. 1 The oxygen metabolism: during the recovery, AACD-CPR group compared with STD-CPR group were significantly increased in arterial blood oxygen content (CaO2):15.6±1.5 to 14.2±1.9mL/L, arteriovenous oxygen content difference (avDO2): 8.3±1.4 to 7.3±1.3mL/L,the oxygen carrying capacity (DO2) : 248±51 to 208±54mL/min, oxygen consumption (VO2) : 134±29 to 118±32mL/min,but no significant differences in cardiac output (CO) and mixed venous oxygen content (CvO2). 2 Hemodynamics: Two groups’ base valueinthe heart rate (HR), mean arterial pressure (MAP), pH value, pulse oxygen saturation Degree (SpO2), arterial oxygen pressure (PaO2), arterial partial pressure of carbon dioxide (PaCO2), lactate (Lac) were no significant differences. In the recovery process, MAP, pH, SpO2, PaO2 of two groups increased, but PaCO2 and Lac decreased. Except MAP of STD-CPR group is slightly higher than AACD-CPR group, the change tendency of AACD-CPR group was more obvious in each index obviously [pH value: 0.10±0.15 to 0.02±0.13, SpO2 difference: 0.311±0.255 to 0.159±0.232, the difference in PaO2 (mmHg, 1 mmHg = 0.133 kPa): 12.96±21.84 to 3.01±13.56, the difference in PaCO2 (mmHg): -9.91±11.17 to -3.52±13.87, Lac value (mmol/L): -0.64±0.61 to -0.31±0.58]. The prognosis: compared with STD-CPR group, the restoration of spontaneous circulation (ROSC) rate of AACD-CPR group was no increased slightly (22.9% vs. 8.8%), but the ROSC time of AACD-CPR group was shortened (min: 9.59±2.67 to 11.83±3.05). Score of nerve function defect (NDS) in week 1, 2 decreased significantly (26.45±6.42 to 30.73±7.38; 19.25±6.27 to 22.64±5.63, respectively), and the two-week survival rate increased slightly (17.1% 5.9%). Conclusion: AACD-CPR is similar to STD-CPR in improving hemodynamics of CA patients, but has advantage in the blood oxygen supply of tissues and organs, and in the prognosis of patients with neurological function is better.

Effect of Active Abdominal Compression-Decompression Cardiopulmonary Resuscitation on Oxygen Metabolism and Prognosis in Patients with Cardiac Arrest