Elsevier

American Heart Journal

Volume 38, Issue 2, August 1949, Pages 273-294
American Heart Journal

Original communication
The ventricular complex in right ventricular hypertrophy as obtained by unipolar precordial and limb leads,☆☆

https://doi.org/10.1016/0002-8703(49)91335-6Get rights and content

Abstract

The dramatic benefits to be obtained from modern cardiac surgical procedures have, among other things, crystallized the need for a more accurate diagnosis of heart disease. One of the most elusive of these conditions is right ventricular hypertrophy, and more definite criteria for its recognition are greatly needed. Roentgenologists and clinicians have attacked the problem, but the roentgenographic diagnosis of right ventricular hypertrophy is notoriously difficult and radiologists differ in their opinions as to the reliability of the criteria thought to be of diagnostic importance.1–4 Various authors have described the electrocardiographic pattern of marked right ventricular hypertrophy in the standard limb leads5–10 and in the precordial leads.11–15,27 The criteria for the diagnosis of the lesser degrees of right ventricular hypertrophy have not been clearly established in either standard or precordial leads, nor has the frequency of the significant findings been accurately defined. It is the purpose of this paper to describe the patterns seen in sixty cases of right ventricular hypertrophy and to differentiate normal right axis deviation (due to position of the heart) from abnormal right axis deviation (due to right ventricular hypertrophy).

References (30)

  • G.B. Myers et al.

    Normal Variations in Multiple Precordial Leads

    Am. Heart J.

    (1947)
  • M. Sokolow et al.

    The Ventricular Complex in Left Ventricular Hypertrophy as Obtained by Unipolar Precordial and Limb Leads

    Am. Heart J.

    (1949)
  • J. Parkinson et al.

    The Heart in Emphysema

    Quart. J. Med.

    (1937)
  • L.G. Rigler et al.

    Chronic Cor Pulmonale

    Am. J. Roentgenol.

    (1943)
  • M.L. Sussman et al.

    The Roentgenologic Diagnosis of Right-sided Enlargement of the Heart

    New England J. Med.

    (1943)
  • Cited by (112)

    • Sarcopenia, sarcopenic overweight/obesity and risk of cardiovascular disease and cardiac arrhythmia: A cross-sectional study

      2021, Clinical Nutrition
      Citation Excerpt :

      Left ventricular hypertrophy was defined by SV1 + RV5 ≥4.0 mV in males and ≥3.5 mV in females by the Sokolw-Lyon (SL)-China criterion [28]. Right ventricular hypertrophy was defined according to the following criteria: RV1≥0.7 mV, RV1 + SV5 ≥1.05 mV, SV5≥0.7 mV, RV5≤0.5 mV, R:S ratio (V1) ≥1, and R:S ratio (V5) ≤1 [29]. BMIs of 24 kg/m2 and 28 kg/m2 were selected as the optimal cutoffs for overweight and obesity for Chinese adults [30].

    • Training-induced right ventricular remodelling in pre-adolescent endurance athletes: The athlete's heart in children

      2017, International Journal of Cardiology
      Citation Excerpt :

      The presence of negative T waves in the peripheral leads and beyond V1 in the precordial leads was evaluated [21]. The presence of RV hypertrophy was defined by the sum of the R waves in V1 and the S waves in V6 exceeding 1.05 mV [22]. The echocardiographic examination was performed by one cardiologist using a high-quality echocardiograph (Vivid 9, GE, Milwaukee, WI, USA), equipped with a M4S 1.5–4.0 MHz transducer, and a one-lead ECG was continuously displayed.

    • Electrocardiographic Changes Induced by Endurance Training and Pubertal Development in Male Children

      2017, American Journal of Cardiology
      Citation Excerpt :

      The presence of T-wave inversion in the peripheral leads and beyond V1 in the precordial leads was also explored.13 The Sokolow-Lyon voltage criteria were applied for the definition of left ventricular hypertrophy (LVH) and right ventricular (RV) hypertrophy.14,15 Left atrial enlargement, right atrial enlargement, and early repolarization (ER) were defined as recommended by the Seattle criteria.16

    View all citing articles on Scopus

    Aided in part by a grant from the mrs. Albert E. Schwabacher Fund.

    ☆☆

    Presented in preliminary form before the American Federation of Clinical Research, April, 1947, Chicago, Ill.

    View full text