心脏瓣膜听诊区及心脏杂音(国外英文资料).docVIP

心脏瓣膜听诊区及心脏杂音 The fourth chapter A symptom is an abnormal feeling of discomfort or pain, or an objective pathological change. There are various forms of symptom presentation, some of which are subjective, such as pain, dizziness, etc. Some of them are subjective and can be found by objective examination, such as fever, jaundice, and difficulty breathing. There is also subjective and no abnormal feeling, which is discovered by objective examination, such as bleeding of the mucosa and enlargement of liver and spleen. There are also some life events that have undergone qualitative changes (inadequate or more) such as obesity, weight loss, urine, and urine, which need to be evaluated objectively. All of this, broadly, can be seen as a symptom, a generalized symptom, including some physical signs that refer to changes that are objectively examined by a doctor or other person. Heart valve listening area and heart murmur Heart murmur is to point to in addition to the mind and extra heart sounds, produced by the ventricular walls, the walls of blood vessels and the valve vibration of abnormal sound, its characteristic is duration is long, specific nature, can be separated from heart sounds or continuous, and even cover up the heart sounds. Because of the different characteristics of the noise, he has important implications for the diagnosis of certain heart diseases. (1) the location of the main cardiac valve listening area The sound that occurs when the heart valves open or close is transmitted to the area of the heart valve listening area, which is easiest to hear. Its not exactly the same location. The traditional five listening areas are: Mitral area: located in the apex of the apex, known as the apex of the heart. Pulmonary lobe: located in the second costal margin of the left margin of the sternum. Aortic lobe listening area: located in the second costal margin of the right margin of the sternum. Aortic valve second listening area: located in the third costal margin o