title: Limb leads of the electrocardiogram: sequencing revisited.
abstract: The six limb leads are normally presented in a format the logic of which is traditional rather than anatomical and does not allow visual interpolation such as is customary with the six chest leads. The sequence: a VL, I, -aVR, II, aVF, III was suggested years ago, and is used in some European countries, particularly Sweden. It provides a better impression of the extent of the changes of inferior infarction and makes the rather neglected lead aVR much more useful, though reversed in polarity. It also provides a more direct indication of the electrical axis, and simplifies comparisons with the frontal plane vectorcardiogram. Because modern digital electrocardiographs can provide the sequenced format, this seems a good time to review the advantages of adopting it.
authors.affiliation: Department of Cardiology, Loma Linda University Medical Center, California 92354.
authors.forename: G E
authors.initials: GE
authors.lastname: Dower
authors.forename: S B
authors.initials: SB
authors.lastname: Nazzal
authors.forename: O
authors.initials: O
authors.lastname: Pahlm
authors.forename: W K
authors.initials: WK
authors.lastname: Haistey
authors.forename: H L
authors.initials: HL
authors.lastname: Marriott
authors.forename: R H
authors.initials: RH
authors.lastname: Bullington
authors.forename: D
authors.initials: D
authors.lastname: Bullington
mesh_terms: D004562:Electrocardiography / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis*; D012984:Software