呼吸肌电波所致伪差酷似心房内传导阻滞(又称心房分离)的心电图改变。人们对此尚缺乏充分的认识,易视为心房波而导致误诊。笔者曾遇二例,报告如下:例一:高××,女性,56岁,因反复心累、心跳20余年,心衰、肺部感染于1985年12月入我院。查体:呼吸急促,唇微紫绀,双肺满布干鸣,双下份中量湿鸣,心尖区可闻及隆隆样舒张期杂音,胸骨左缘可闻及开 Respiratory muscle artifacts caused by artifacts resembles atrial conduction block (also known as atrial septal) ECG changes. People are still not fully aware of this, easily lead to misdiagnosis as atrial waves. I met two cases, the report is as follows: Example 1: high × ×, female, 56 years old, because of repeated heart tired, heartbeat more than 20 years, heart failure, lung infection in December 1985 into our hospital. Physical examination: shortness of breath, lip cyanosis, lungs covered with dry Ming, double the amount of wet Ming, the apex area can be heard and rumbling like diastolic murmur, sternal left edge can be heard and open