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在婴儿诊所和学校调查中,发现大多数小儿有听诊“异常”。有人发现3～14岁健康小儿心脏有杂音者达96%。这个数字与同年龄组心脏病实际可能发病率的0. 5%成明显对比。虽然只有当杂音颇为响亮时,才能被不太熟练的昕诊者发现,但是现在大多数小儿医疗检查机会很多,因而许多人的杂音都能被发现出来。因此,许多医生常采用“正常心脏杂音”这个名称,以使小儿父母放心,大多数小儿心脏杂音并无临床意义。
In the baby clinic and school survey, found that most children have auscultation “abnormal.” It was found that 3 to 14-year-old healthy children with heart murmur 96%. This figure is in contrast with the actual incidence of heart disease in the same age group of 0.5% in sharp contrast. Although it is only discovered by less-skilled new caregivers when the noise is loud, most children now have a lot of medical exams and so many people’s murmurs can be spotted. Therefore, many doctors often use the name “normal heart murmur” to make children and parents feel relieved that most pediatric heart murmurs have no clinical significance.