According to incomplete statistics, about 540,000 people die of sudden cardiac death every year in China, and nearly 90% of sudden deaths are caused by malignant arrhythmias, of which ventricular tachycardia and ventricular fibrillation account for 82%. The earlier the reversal of malignant arrhythmia, the greater the likelihood of survival of the patient, every extension of 1 minute the survival rate of patients decreased by 7-10%. A large number of sudden death case studies, even in developed countries, only 5% of patients can be rescued in a timely manner, 95% of patients to the rescue before, has lost the reversal of the reversal of the time and unfortunately died. For decades, the medical profession has been studying how to combat these malignant arrhythmias. The application of antiarrhythmic drugs and other comprehensive treatment modalities have not been able to minimize the mortality of patients. Hu Hesheng, Department of Cardiology, Thousand Buddha Mountain Hospital, Shandong Province, China The introduction of ICD (Implantable Cardioverter Defibrillator) has provided a practical and effective treatment for the prevention and treatment of sudden cardiac death and opened up a new era in the treatment of sudden cardiac death. It automatically recognizes ventricular fibrillation and ventricular tachycardia, the two most common and fatal arrhythmias, within 10 seconds or less, and releases the shock energy to defibrillate. This is equivalent to having a doctor with you, monitoring the patient around the clock and quickly defibrillating the patient with electric shocks as soon as a dangerous situation is detected, with a resuscitation success rate of almost 100%. Therefore, the implantation of ICD is currently the most effective way to prevent and control sudden cardiac death, but also sudden cardiac death patients rebirth of the protector. Former U.S. Vice President Dick Cheney, implanted with an ICD in 2001 due to sudden cardiac death, has since re-entered the political arena with great vigor. However, many people are not so lucky, they are too late to implant an ICD and quietly passed away, famous actors Hou Yaowen, Ma Ji, Gao Xiumin and so on have not been spared. For Wen Mou, a patient hospitalized in the Second Department of Cardiology, he is undoubtedly the beneficiary of the development of the technology, after Wen Mou 2 times due to malignant arrhythmia attack was fortunate enough to be defibrillated in time to save his life. However, he has coronary artery disease and ischemic cardiomyopathy, and the possibility of sudden death still exists at any time, which is a class I indication for ICD secondary prevention implantation. A few days ago, after sufficient preoperative preparation, the surgical team composed of Prof. Yan Suhua, Taishan Scholar of Shandong Province specialized in cardiovascular disease, and Dr. Chen Mingyou, Chief Physician of Department of Cardiology, successfully implanted an ICD in the patient in about one hour, and the ICD was successfully recognized after ventricular fibrillation was induced after the surgery and the low-energy discharges were successfully restored to normal, suggesting that the implantation of the ICD was successful, the patient has a good recovery and will be discharged from the hospital. According to Taishan scholar Prof. Yan Suhua, at present our country lacks sufficient attention to sudden cardiac death. This is manifested on the one hand in the community prevention is not carried out, on-site emergency lack of green channel; on the other hand, there is a large number of unknown high-risk groups, including a family history of sudden cardiac death, a history of infarction, combined with myocardial thickening, the emergence of unexplained syncope of the people, as well as dilated cardiomyopathy and other patients. China and Europe and the United States need to install the number of ICD is basically the same, but the actual installation of very few people, the main reason is that the sudden cardiac death do not understand and do not pay attention to, or the installation of implantable devices there are concerns, which gives the high incidence of sudden cardiac death in the country laid a hidden danger. In fact, the implantation method is basically equivalent to the general permanent pacemaker, only need to implant the wire through the vein, the ICD pulse generator buried in the left chest under the skin or under the pectoralis major muscle can be. The surgical procedure usually takes 1 to 2 hours, and the surgery is performed under local anesthesia, and the patient is awake, but in order to verify the defibrillation effect of the ICD, when ventricular fibrillation is induced during the surgery in order to test the defibrillation threshold, in order to reduce the pain of the patient, a general anesthesia is used.The ICD senses the heart’s electrical signals by means of the wires that are in contact with the endocardium and monitors the heart’s rhythm all the time, and it can release electrical stimulation to help the heart to beat when necessary, and release higher-energy electrical stimulation to help the heart to beat when needed. When needed, release higher energy electric shock to treat abnormal rapid heartbeat, timely restore the heart rhythm, to achieve automatic cardiac resuscitation purpose, so as to protect the patient’s life safety.