Pérez-Riera Andrés Ricardo, Barbosa-Barros Raimundo, Daminello-Raimundo Rodrigo, de Abreu Luiz Carlos
Design of Studies and Scientific Writing Laboratory at the ABC School of Medicine, Santo André, São Paulo, Brazil.
Coronary Center of the Hospital de Messejana Dr. Carlos Alberto Studart Gomes, Fortaleza, Ceara, Brazil.
Ann Noninvasive Electrocardiol. 2018 Mar;23(2):e12494. doi: 10.1111/anec.12494. Epub 2017 Sep 20.
Electrocardiographic artifacts are defined as electrocardiographic alterations, not related to cardiac electrical activity. As a result of artifacts, the components of the electrocardiogram (ECG) such as the baseline and waves can be distorted. Motion artifacts are due to shaking with rhythmic movement. Examples of motion artifacts include tremors with no evident cause, Parkinson's disease, cerebellar or intention tremor, anxiety, hyperthyroidism, multiple sclerosis, and drugs such as amphetamines, xanthines, lithium, benzodiazepines, or shivering (due to hypothermia, fever (rigor due to shaking), cardiopulmonary resuscitation by chest compression (oscillations of great amplitude) and patients who move their limbs during the test, causing sudden irregularities in the ECG baseline that may resemble premature contractions or interfere with ECG wave shapes, or other supraventricular and ventricular arrhythmias. When the skeletal muscles experience shaking, the ECG is "bombarded" by apparently random electrical activity.
心电图伪差被定义为与心脏电活动无关的心电图改变。由于伪差，心电图（ECG）的组成部分如基线和波形可能会失真。运动伪差是由于有节奏的运动引起的摇晃所致。运动伪差的例子包括无明显原因的震颤、帕金森病、小脑或意向性震颤、焦虑、甲状腺功能亢进、多发性硬化症，以及诸如苯丙胺、黄嘌呤、锂、苯二氮䓬类药物等，或颤抖（由于体温过低、发热（寒战）、胸部按压进行心肺复苏（大幅度振荡）以及在检查过程中移动肢体的患者，导致心电图基线突然出现不规则变化，可能类似于早搏或干扰心电图波形，或其他室上性和室性心律失常。当骨骼肌发生颤抖时，心电图会受到明显随机电活动的“轰击”。
