Misplacing V1 and V2 can have clinical consequences - 24/04/18
Abstract |
The precordial electrocardiogram (ECG) leads V1 and V2 are often misplaced. Such misplacement usually involves placing these leads too high on the chest. The resulting ECG may generate erroneous ECG patterns: e.g. incomplete right bundle branch block, anterior T wave inversion, septal Q waves, ST-segment elevation. These features may falsely suggest acute or old cardiac ischemia, pulmonary embolism, or a type-2 Brugada pattern. On rare occasion, conversely, high placement of V1 and V2 may reveal a true type-1 Brugada pattern. The emergency clinician needs to be aware of the possibility of lead misplacement, and should know how to suspect it based on unusual P wave morphology in V1 and V2.
Le texte complet de cet article est disponible en PDF.Keywords : Electrocardiography/standards, Electrodes, ECG, EKG, Diagnostic errors
Plan
| ☆ | These cases have not been previously published, submitted for publication, presented at conference, either in oral or poster format. |
| ☆☆ | The author received no financial assistance from any source. |
Vol 36 - N° 5
P. 865-870 - mai 2018 Retour au numéro
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