title: Einthoven's triangle transparency: a practical method to explain limb lead configuration following single lead misplacements.
abstract: Limb lead switches remain a significant source of electrocardiographic error that may lead to faulty diagnosis and improper clinical action. Methods to identify such errors have been the subject of many prior publications. A brief review of the mathematical derivation of the limb lead system is presented here, together with an additional method to help understand limb lead reversals using a transparency of the Einthoven's triangle.
authors.affiliation: Section of Cardiac Electrophysiology and Pacing, Department of Cardiovascular Medicine, Cleveland Clinic Foundation, Cleveland, OH, USA.
authors.forename: Bernard
authors.initials: B
authors.lastname: Abi-Saleh
authors.forename: Bassam
authors.initials: B
authors.lastname: Omar
mesh_terms: D003951:Diagnostic Errors / Q000517:prevention & control; D004562:Electrocardiography / Q000295:instrumentation / Q000379:methods*; D006329:Heart Conduction System / Q000503:physiopathology