Heart, is a small two-story building, two families built a duplex villa, the left one is called the left heart, the right one is called the right heart. The room upstairs is called “room”, and the one downstairs is “room”. As with the human house, the heart is also composed of four parts: walls, doors, plumbing and electrical circuits. People often say that the windows of the heart, in fact, the heart of this house has everything, but the only missing windows, the heart is no windows. When a house is broken, it is nothing but walls, doors, water and electricity that are out of order, and heart disease, too. Our story begins here. The walls of the heart are not reinforced concrete, but two layers of skin sandwiched by a layer of meat, not meat sandwich, but skin sandwiched by meat, the wall made of meat is called the “heart muscle”. Myocardial wall disease, the most common is “atrial septal defect”, congenital, the reason is that when building a house, the wall between the left and right heart is not finished before the delivery, leaving a gap. The tofu-dreg project that killed the people, when the birth of acceptance failed, but also do not give a refund, too wronged, God than the developer is black. Please tell each other, the monthly salary of five million recruitment of medical farce, go to God to comment, the Palace of Heaven to him into hell, would like to go to the hurry to sign up la, the number of places is limited, please buy a good return ticket before registration, return trip to collect wages. The door of the heart is shaped like a flower petal, which has a poetic medical forefathers named an academic “valve”. If I were to name it, it would be vulgar to call it “heart door”, “mitral valve” called “two doors”, “tricuspid valve “called” three doors, vulgar but easy to understand. The door is stuck, can only push open a narrow slit, called “valve stenosis”; the door does not close tightly, called “incomplete closure of the valve”. If the door in your home is broken, what to do? Yes, either get a new one, or repair a repair. Replace the door with a new one, called “valve replacement”; repair and continue to use, called “valve repair”. Can “repair”, never “replacement”. There are two kinds of artificial doors, made of pig heart and metal, the quality is far from the door made in heaven. Three say water pipes water pipes laid on the surface of the wall, called the coronary arteries, which are flowing blood, for the heart muscle’s life food channels. If the water pipe is blocked, the heart muscle wall may be necrosis due to ischemia, called “coronary heart disease”. Treatment methods are two kinds, one is like stabbing sewer, with a wire stab through the coronary artery, put a casing to support the wall of the water pipe to prevent collapse, called “stent placement”; second is to abandon the old pipe, re-build a new pipe, called “bypass surgery”. Fourth, the electrical lines laid in the walls of the heart transmission lines, called “heart conduction system”. Once the circuit is discharged, the heart beats once, and without discharge, there is no heartbeat. If there is a problem with the circuit, the heartbeat rhythm will be abnormal, called “arrhythmia”. There are various kinds of arrhythmias, for example, the circuit is like a nerve discharge, the electric atrial wall can not stop shaking, called “atrial fibrillation”; early discharge, called premature beats; current interruption, called “conduction block”. Human beings know very little about the circuitry of the heart, and the current treatment is just groping for a way to cross the river. In the future, progress in the treatment of arrhythmias will depend not on doctors, but on scientists who study electrophysiology, behind the scenes and in front of the stage, doctors are just a second hand. The honor is the doctor’s, the hard work is the scientist’s. To check the heart is to check the walls, gates, plumbing and electrical circuits of the heart. Ultrasound is used to see if there are gaps in the walls and if the valve doors are opened and closed tightly. Coronary CT or angiography is the plumber who can find out exactly if and where this water pipe, the coronary artery, is blocked. ECG, as the name implies, is used to detect the energization of electrical circuits and does the work of an electrician. The labor costs of masons and plumbers in the renovation team are rising too fast, and the two-story building is a high-end villa, so if you have a heart attack, you can’t afford to check and repair it! The clinical manifestations of heart disease. The clinical manifestations of heart disease are chest tightness, chest pain, shoulder pain, arm pain, stomach pain, may also be heart disease. Heart disease is everywhere and no one loves it. It loves me, I do not love it.