Everyone should remember the Wuxi International Marathon in 2015. At the time of the international marathon, more than 30,000 participants experienced a thrilling 10 minutes together. At 9:17 Beijing time and 20.3 kilometers from half horse, a runner suddenly After falling to the ground, the first rescuer arrived at the scene 1 minute later, and confirmed that the player had no breathing and other reactions. He immediately performed CPR; at 9:19 the second rescuer arrived and replaced the first rescue Personnel perform CPR; 9:20, the ambulance personnel arrived at the scene with AED to perform electric defibrillation for the players, and the patient resumed spontaneous breathing after 1 minute. The ambulance arrived and the police were discouraged from entering the ambulance and taken to the hospital.
Everyone must be curious, what is the AED that plays an important role in the rescue process? How should AED be applied? Here’s a detailed introduction for everyone.
To know what an AED is, you need to understand what a cardiac arrest is. Cardiac arrest is due to the sudden stop of cardiac function, and the beating sound of the patient’s aorta disappears, leading to death caused by ischemia and hypoxia in various important organs in the body. This death is medically called sudden death. On average, up to 550,000 cases occur in China every year, of which nearly 90% occur in public areas outside the hospital. For patients with cardiac arrest, 4 minutes is the prime time to save lives. Data show that 85% to 90% of patients with cardiac arrest in the early stage are ventricular fibrillation. The most effective way to treat ventricular fibrillation is to use an automatic external defibrillator (AED) to defibrillate early. For every 1 minute delay in defibrillation, survival decreases by 7% to 10%. Cardiopulmonary resuscitation combined with early effective use of AED is the most effective means of rescuing those with sudden cardiac arrest and sudden death.
AED is mainly used for sudden patients who are in a coma and have cardiac arrest. If the patient is found to be unable to touch the aorta, the sound of the heart beating disappears, and then the loss of consciousness, breathing stops, dilated pupils, etc. can be used AED instrument. Because when such patients are in an arrhythmic state, although the heart muscle is still active, it cannot deliver blood to the whole body, and it needs to be corrected by electric shock. Compared with traditional defibrillation instruments, the biggest feature of AED is that it does not require users to have a high level of ability to read ECG. As long as the power is turned on according to the voice instructions and the discharge button is pressed, automatic ECG analysis and defibrillation can be completed. Generally, non-medical personnel can fully grasp after receiving a 4-hour study drill. Now, in a sense, AED is not only a kind of first-aid equipment, but also a new concept of first-aid, an earliest concept of effective first-aid by witnesses at the scene.
In 2003, the United States began to implement rescue measures using AEDs in public places. China only had the first AED machine in 2006. Currently, many large cities have AEDs in public places such as subways, train stations, fitness centers, and shopping malls. To save more lives. However, the public’s awareness of AED is still low, and the level of mastery of first aid knowledge and skills is not high. Many people will not use it and dare not use it. This has led to the “life-saving artifact” becoming an expensive device that cannot be really played. Life-saving role.
So how exactly is the AED instrument used? Can be divided into 4 steps-
Step 1: Take the AED, get it to the patient quickly, and press the power button on the machine. Unwrap the patient’s clothing so that the fore chest is fully exposed.
Step 2: Stick the pre-connected electrode pads on the machine to the rescued person according to the voice instructions. One of the electrode pads is placed under the patient’s right shoulder clavicle and the other is placed under the heart.
Step 3: After connecting the electrode pads, the machine will automatically prompt: “Analyzing”. If a shockable rhythm is detected, the AED will automatically charge to the preset energy value according to the current patient type. While charging, the rhythm analysis continues. During the charging process, the system emits a charging prompt. After charging is complete, the shock button on the front panel of the device starts blinking. Voice prompt: “Please stay away from the patient”, then press the discharge button. It should be noted that the crowd around the patient must be evacuated at this time. At the same time, all removable metal objects should be removed from the patient’s chest to ensure that there are no foreign objects in the chest.
Step 4: After the discharge is completed, perform cardiopulmonary resuscitation according to the beat of the voice prompt, and follow the machine prompts until the professional arrives. If the patient has not recovered after the first defibrillation, the machine will automatically gradually upgrade the electric shock energy, start the second and third defibrillation, and repeat the above process.