【710 During the review, I did not remind me to block it, nor did I say I would change it. I guess it would have to be manually reviewed, but the person was not there and I didn't release it.

711 is the smallest heart transplant

The world's smallest artificial heart has completed its first implantation in Henan

This is the smallest and lightest “artificial heart” in the world.

It is only the size of a ping-pong ball, made of metal, weighing 90 grams. During the operation, it is delicately fixed to the left ventricle close to the apex. A cable connecting the "artificial heart" passes out from the chest cavity through the skin above the navel through the skin, connected to two external batteries and a controller.

It can partially replace heart function, assist in maintaining blood circulation throughout the body, and ensure the human life and metabolism needs.

Professor Cheng Zhaoyun, one of the surgeons and deputy director of Fuwaihua Central Vascular Disease Hospital, told the "medical community" that this marks a new historical height for the treatment of critical heart diseases in my country, and some technologies have reached the international leading level.

Implanting of "artificial heart"

Mr. Ma is the owner of this "artificial heart".

He is 43 years old and is from Dengzhou City, Henan Province. After resigning from the army, he has been engaged in the construction industry for many years. He has worked overtime for a long time, stayed up late, and often drank alcohol. He has been smoking since he was eight years old and has had a history of smoking for more than 30 years. Four years ago, he began to experience symptoms such as intermittent chest tightness, shortness of breath and palpitations.

After the hospital examination, he was diagnosed with heart disease, severe mitral valve closure and moderate tricuspid valve closure. It is reported that there are 4 valves in the human heart in total, and both of Mr. Ma’s valves have problems.

Professor Cheng Zhaoyun said in an interview with the "medical community" that not long ago, Mr. Ma's above symptoms worsened. After being admitted to the hospital, he found that he had developed "difference cardiomyopathy" and had arrhythmia, which showed heart failure. He was not strong enough and had to sit on the bed even when eating. The condition was very serious and there would be sudden death at any time.

"First, the patient's daily activities have been severely limited, and he is usually bedridden; second, blood pressure needs to be maintained by drugs; third, according to medical standards, if diuretics are not used, the patient urinates very little, which are signals and indications of heart failure."

After a series of auxiliary examinations such as ultrasound, X-ray, ct, magnetic resonance, the hospital confirmed that Mr. Ma was heart failure and determined that for the patient's condition, drug treatment has no obvious effect, and artificial heart implantation surgery is the best solution.

President Cheng Zhaoyun introduced that in order to ensure that this world's first surgery is foolproof, the hospital has made sufficient preparations for all aspects.

"The patient's admission time was September 3 and the operation was October 8. More than a month of preoperative examination and preparation were conducted in the middle to evaluate cardiac and lung function, regulate the speed and various indicators of the 'artificial heart' to match the patient; it also needs to be allocated to the patient to improve the dietary structure and adjust the psychological state."

The day before the operation, Fuwai Hospital of the Chinese Academy of Medical Sciences and Fuwaihua Central Vascular Disease Hospital jointly held a coordination meeting for experts in the department of cardiology, cardiology, operating room, anesthesia, intensive care, extracorporeal circulation, blood transfusion, laboratory, and pharmacy to conduct preoperative case discussions.

The operation was performed jointly by experts such as Professor Hu Shengshou, an academician of the Chinese Academy of Engineering, the general director of the Fuwaihua Central Vascular Disease Hospital, and the director of the Fuwai Hospital of the Chinese Academy of Medical Sciences, Professor Wang Xianqiang of the Fuwai Hospital of the Chinese Academy of Medical Sciences, and Professor Cheng Zhaoyun, the deputy director of the Fuwaihua Central Vascular Disease Hospital and other experts.

After about 3 hours, the operation was successfully carried out. With the precise adjustment of professionals, the magnetic levitation artificial heart began to "beat", and the patient successfully left the extracorporeal circulation machine to assist. With the parallel work assistance of the "artificial heart", the patient's heart rate, blood pressure and other vital signs were normal and stable.

Heart failure is the end stage of the development of various heart diseases, which means that the heart can no longer be beating and can no longer supply blood to the whole body. It is one of the main causes of death for heart disease patients.

There are many patients with heart failure in my country. According to the latest results of the epidemiological survey on heart failure in my country published by Academician Gao Runlin of Fuwai Hospital and Professor Wang Zengwu in the European Journal of Heart Failure, among the 35-year-old residents in my country, the weighted prevalence of heart failure is 1.3%, that is, there are about 13.7 million heart failure patients.

After heart failure, other organs of the body such as liver, kidney, lung, stomach, etc. will experience decreased function. Patients with end-stage heart failure rely solely on oral medications to treat, and the 5-year survival rate is only 50%.

"Artificial Heart" provides hope for life for such patients. Dean Cheng Zhaoyun introduced to the "medical community" that the full name of this operation is "ultra-small magnetic levitation centrifugal artificial heart implantation", which is the first case in the world and has China's independent intellectual property rights.

After it is implanted into the patient's body, it is connected in parallel with the heart, one end to the left ventricle of the heart and the other end to the human aorta. In the case of insufficient blood supply capacity of the left ventricle, part of the blood flows from the left ventricle into the "artificial heart" through the "inflow tube", and the "artificial heart" then pushes the blood out and is transported to the aorta through the "outflow tube".

For normal people, the heart beats 60-100 times per minute and pumps out about 5 liters of blood. The "artificial heart" implanted in the body can pump 1-10 liters of blood per minute, assisting the human heart function to pump blood, and also ensuring blood perfusion of important organs such as the brain, kidneys, and liver.

In the following period, in addition to physical recovery, Mr. Ma also had to adapt to the changes in life brought to him by the "artificial heart", such as how to coexist with the extra batteries on his body, how to take a bath, etc.

President Cheng Zhaoyun said that after discharge, patients will be like normal people and will not have a particularly significant impact on their daily lives. Running, bathing, cycling and even strenuous exercise can be performed like normal people.

The only thing to note is that the "artificial heart" cannot be powered off. He introduced that the battery life of this "heart" is 33 hours, including two batteries, one large and one small. When you go out to do something, you will automatically switch to a large battery for power supply.

The patient puts the two batteries connected to the body and the controller that shows the speed, flow and power of the "artificial heart" in the body into a special crossbody bag, and no abnormality can be seen even when going out.

Regarding the specific operation and use of "artificial heart", Dean Cheng Zhaoyun said: "Before the operation, 1-2 nurses will provide professional training to patients, such as the problem of changing the medicine. Because the blood concentration will become thinner after taking the medicine, he needs to learn to measure various indicators of his body and provide timely feedback to the hospital."

In addition, patients and their families must receive theoretical training and practical guidance on "artificial heart" to prevent accidents in the power cord of the "heart"; when taking a bath, you need to use a waterproof bag to avoid water entering the wire of the wound... These precautions are written into a booklet and sent to the patient, and need to be studied repeatedly.

After implanting the "artificial heart", the human body will experience new challenges that traditional cardiac surgery has not encountered before, such as changes in coagulation and blood pressure indicators. Dean Cheng Zhaoyun said that patients need to pay attention to diet and other aspects, and control the values ​​within a reasonable range. The specific indicators are determined by the doctor based on the physical conditions of different patients.

Can "artificial heart" replace heart transplant?

Artificial hearts are the most complex and precise medical devices, and are known as the "golden gem in the crown of medical devices."

It mainly consists of two categories: one is to dig out the real heart and replace it completely with a mechanical heart; the other is to assist artificial heart, which is to retain the original heart, place the second "heart" next to it to work in concert with the original heart.

In the past, for patients with severe heart failure, it was impossible to reverse the drug, and heart transplantation was the only effective treatment method. However, the number of heart transplant surgeries in my country each year is only about 500, and they often face the situation of insufficient donors. Many patients lose their chance of life while waiting for the donor.

Based on this rigid demand, "artificial heart" has become one of the key directions of medical technology. It can be used for transitional treatment before heart transplantation, transitional treatment before heart failure recovery, and as a permanent alternative treatment.

Can "artificial heart" really replace heart transplant? Dean Cheng Zhaoyun believes that in the case of severe scarcity of suitable heart donors, "artificial heart" is the general direction for the domestic medical community to treat patients with advanced heart failure in the future.

"There are many uncontrollable factors after heart transplantation. Some patients will develop tumors, which will cause immune rejection. However, no need to take immune rejection drugs after implanting the "artificial heart" avoids the possibility of tumor occurrence. Artificial hearts actually have greater benefits to patients and are simple to manage."

In addition, my country's latest third-generation "artificial heart" is a magnetic levitation technology, that is, the rotating impeller is suspended in the blood field without any mechanical contact, which can reduce the damage to blood function and achieve better healing effect.

There are also different opinions. Dr. Dong Nianguo, an affiliated Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, previously said in an interview with the Beijing News that at this stage, if the situation allows, the best way is to transplant. Some foreign studies have shown that after the third year of the operation, patients with heart transplants have a higher survival rate than patients with mechanical heart implantation.

In the international medical field, "artificial heart" has been widely recognized by the medical community. Thousands of patients abroad receive artificial heart implantation every year, and the global number of artificial heart implantation has exceeded 14,000 cases. The clinical application conditions for "artificial heart" that uses artificial organs to replace natural organs are gradually maturing.

President Cheng Zhaoyun said that my country's "artificial heart" technology has been in line with the international level, and has performed excellently in infection risk prevention and control, device reliability, and blood compatibility, reaching the international leading level in all aspects.

However, a certain number of clinical trials to save patients with advanced heart failure are still needed. Considering issues such as R&D, clinical and cost, my country is still a distance away from the popularization of "artificial heart" auxiliary devices.

In the past, for patients with severe heart failure, it was impossible to reverse the drug, and heart transplantation was the only effective treatment method. However, the number of heart transplant surgeries in my country each year is only about 500, and they often face the situation of insufficient donors. Many patients lose their chance of life while waiting for the donor.

Based on this rigid demand, "artificial heart" has become one of the key directions of medical technology. It can be used for transitional treatment before heart transplantation, transitional treatment before heart failure recovery, and as a permanent alternative treatment.

Can "artificial heart" really replace heart transplant? Dean Cheng Zhaoyun believes that in the case of severe scarcity of suitable heart donors, "artificial heart" is the general direction for the domestic medical community to treat patients with advanced heart failure in the future.

"There are many uncontrollable factors after heart transplantation. Some patients will develop tumors, which will cause immune rejection. However, no need to take immune rejection drugs after implanting the "artificial heart" avoids the possibility of tumor occurrence. Artificial hearts actually have greater benefits to patients and are simple to manage."

In addition, my country's latest third-generation "artificial heart" is a magnetic levitation technology, that is, the rotating impeller is suspended in the blood field without any mechanical contact, which can reduce the damage to blood function and achieve better healing effect.

There are also different opinions. Dr. Dong Nianguo, an affiliated Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, previously said in an interview with the Beijing News that at this stage, if the situation allows, the best way is to transplant. Some foreign studies have shown that after the third year of the operation, patients with heart transplants have a higher survival rate than patients with mechanical heart implantation.

In the international medical field, "artificial heart" has been widely recognized by the medical community. Thousands of patients abroad receive artificial heart implantation every year, and the global number of artificial heart implantation has exceeded 14,000 cases. The clinical application conditions for "artificial heart" that uses artificial organs to replace natural organs are gradually maturing.

President Cheng Zhaoyun said that my country's "artificial heart" technology has been in line with the international level, and has performed excellently in infection risk prevention and control, device reliability, and blood compatibility, reaching the international leading level in all aspects.

However, a certain number of clinical trials to save patients with advanced heart failure are still needed. Considering issues such as R&D, clinical and cost, my country is still a distance away from the popularization of "artificial heart" auxiliary devices.

There are also different opinions. Dr. Dong Nianguo, an affiliated Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, previously said in an interview with the Beijing News that at this stage, if the situation allows, the best way is to transplant. Some foreign studies have shown that after the third year of the operation, patients with heart transplants have a higher survival rate than patients with mechanical heart implantation.

In the international medical field, "artificial heart" has been widely recognized by the medical community. Thousands of patients abroad receive artificial heart implantation every year, and the global number of artificial heart implantation has exceeded 14,000 cases. The clinical application conditions for "artificial heart" that uses artificial organs to replace natural organs are gradually maturing.
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