Bradai Haifa, Laajimi Sondes, Mbarek Rabeb, Chebbi Nabil, Loghmari Dorra, Naija Mounir, Chebili Naoufel
Department of Emergency Medical Services, Sahloul Hospital, Sousse, Tunisia.
F1000Res. 2024 Nov 27;13:1233. doi: 10.12688/f1000research.156313.2. eCollection 2024.
Electrocardiograms (ECGs) can be affected by various factors and technical problems. It is rare for an artefact to be the cause of ST-segment elevation, especially in asymptomatic patients. An important distinction between true ST segment elevation caused by myocardial infarction and an artefact is that the baseline elevation in an artefact may begin before or after the appearance of the QRS complex. When confronted with an abnormal ECG with suspicious waveform contours and possibly only one completely normal limb leads, the diagnosis of arterial pulse artefact should be considered. It is important to exclude subjective assessments unless they are clearly labelled as such.
心电图（ECG）会受到多种因素和技术问题的影响。伪差导致ST段抬高的情况较为罕见，尤其是在无症状患者中。心肌梗死引起的真正ST段抬高与伪差之间的一个重要区别在于，伪差中的基线抬高可能在QRS波群出现之前或之后开始。当面对一份具有可疑波形轮廓且可能仅有一条完全正常肢体导联的异常心电图时，应考虑动脉搏动伪差的诊断。排除主观评估很重要，除非它们被明确如此标注。
