2010 edition of "Cardiopulmonary resuscitation guidelines" proposed: To improve the effectiveness of cardiopulmonary resuscitation, the use of mechanical compression device should minimize the delay or interrupt the chest compressions. To this end, the user should be properly trained and skilled cooperation. Our department since 2009, the application of American-made R & S R 301 a cardiopulmonary resuscitation machine, in accordance with our own development of the three six-step handling procedures, rescued 86 patients with cardiac arrest, nursing now with the work experience The report is as follows.

1 Materials and methods

1.1 General Information

From July 2009 to April 2011, 86 patients with cardiac arrest were treated with R-301 cardiopulmonary resuscitation, including 51 males and 35 females aged from 8 to 75 years. In the pre-hospital, 47 cases from the hospital; causes include: trauma in 21 cases, 38 cases of cardiovascular and cerebrovascular diseases, cancer and other chronic wasting disease in 20 cases, 7 cases of drug and pesticide poisoning. From the first eyewitness report onset to the admissions start rescue time 2-25 min.

1.2 Methods

Found that patients with respiratory arrest, immediately began to manually artificial chest compression, and ready for stretcher recovery machine. In accordance with the standard training procedures, the patient will be carried on a stretcher and fixed position, in patients with sternal median nipple connection level position, the installation of fixed chest compressors. According to the operating procedures to open the knob switch, according to the patient to adjust the required parameters, pressure control at 80-120 pounds, pressing depth of 5 cm, frequency 100 times / min, tidal volume of 500-800 ml. Press the same time to clean the respiratory tract, fixed oxygen mask or endotracheal intubation. Pre-hospital patients were connected to a resuscitation stretcher with a 5: 1 press-to-breather ratio (the machine itself was fixed). Ventilators were connected to the ventilator at 8-10 breaths / min. With ECG defibrillation; prescribed by the use of adrenaline, dopamine and other drugs. To confirm the autonomic cycle recovery (ROSC) and can maintain more than 1 h, remove the compression device, transferred to the ICU continue to recover after treatment. Resuscitation 30 min or more invalid clinical death.

1.3 effective cardiopulmonary resuscitation indicators

Minimum: required to be able to touch peripheral vascular pulsation, systolic blood pressure greater than 40 mmHg; further indicators include: ROSC; auscultation can hear heart sounds; looking, lips, nails color gradually turn red and so on.

1.4 Results

From the beginning to the recovery of patients to rescue the normal work of the machine, the entire process time-consuming average (37 ± 11) s. The average time to interrupt press (6 ± 2) s. Automatic cardiopulmonary resuscitation system continued to press l5-65 (35 ± 8) rain. 81 patients achieved cardiopulmonary resuscitation of the minimum effective index, the other five cases of mechanical, artificial compression are invalid. No complications such as rib fractures occurred. Of these, 29 cases developed ROSC, of which 16 died within 4 h, 6 died within 24 h (1 case of family members due to economic problems to give up the rescue). The other 7 patients survived more than 24 hours. After ICU treatment, 4 patients were discharged within 3 months without serious neurological damage. 2 patients had obvious neurological damage and were in vegetative state. One patient died of serious complications .