• 1.

    Tilley LP. Analysis of canine P-QRS-T deflections. In: Tilley LP, ed. Essentials of canine and feline electrocardiography. 3rd ed. Philadelphia: Lea & Febiger, 1992;5999.

    • Search Google Scholar
    • Export Citation
  • 2.

    Fox PR, Sisson D, Moise SN. Diagnostic methods. In: Textbook of canine and feline cardiology: principles and clinical practice. 2nd ed. Philadelphia: WB Saunders Co, 1999;90:757780.

    • Search Google Scholar
    • Export Citation
  • 3.

    Balducci G, Acquafredda A, Amendola F, et al. Cardiac-function in congenital hypothyroidism—impairment and response to LT4 therapy. Pediatr Cardiol 1991;12:2832.

    • Search Google Scholar
    • Export Citation
  • 4.

    Malmivuo J, Plansey R. Distortion factors in the ECG. In: Malmivuo J, ed. Bioelectromagnetism: principles and applications of bioelectric and biomagnetic fields. Oxford, England: Oxford University Press, 1995;314316.

    • Search Google Scholar
    • Export Citation
  • 5.

    Brody DA. A theoretical analysis of intracavitary blood mass influence on the heart-lead relationship. Circ Res 1956;4:731738.

  • 6.

    Bayley RH, Berry PM. Body surface potentials produced by the eccentric dipole in the heart wall of the nonhomogeneous volume conductor. Am Heart J 1963;65:200207.

    • Search Google Scholar
    • Export Citation
  • 7.

    van Oostero. A, Plonsey R. The Brody effect revisited. J Electrocardiol 1991;24:339348.

  • 8.

    Manoach M, Gitter S, Grossman E, et al. Influence of hemorrhage on the QRS complex of the electrocardiogram. Am Heart J 1971;82:5561.

  • 9.

    Voukydis PC. Effect of intracardiac blood on the electrocardiogram. N Engl J Med 1974;9:612616.

  • 10.

    Della Torr PK, Zaki S, Govendir M, et al. Effect of acute haemorrhage on QRS amplitude of the lead II canine electrocardiogram. Aust Vet J 1999;77:298300.

    • Search Google Scholar
    • Export Citation
  • 11.

    Millard RW. Effect of ventricular end-diastolic volume on vector cardiographic potentials of the pig. Am J Physiol 1978;235:H182H187.

    • Search Google Scholar
    • Export Citation
  • 12.

    Bedont RA. Effect of caval occlusion on the magnitude of unipolar atrial electrograms in dogs. Am J Physiol 1983;245:H580H583.

  • 13.

    Daniels S. Correlation between changes in R wave amplitude and left ventricular volume induced by rapid atrial pacing. Am Heart J 1984;107:711717.

    • Search Google Scholar
    • Export Citation
  • 14.

    Schairer JR, Stein PD, Keteyian SJ, et al. The R-wave voltage is unaffected by acute changes of left-ventricular volume in healthy-young adults. Am J Noninvasive Cardiol 1994;8:9294.

    • Search Google Scholar
    • Export Citation
  • 15.

    Ishikawa K. Influence of alterations in the hematocrit upon the P wave and the QRS complex. Chest 1976;69:762768.

  • 16.

    Ishikawa K, Nagasawa T, Shimada H. Influence of hemodialysis on electrocardiographic wave forms. Am Heart J 1979;97:511.

  • 17.

    Ishikawa K, Berson AS, Pipberger HV. Electrocardiographic changes due to cardiac enlargement. Am Heart J 1971;81:635643.

  • 18.

    Tilley LP. Analysis of common canine cardiac arrhythmias. In: Tilley LP, ed. Essentials of canine and feline electrocardiography. 3rd ed. Philadelphia: Lea & Febiger, 1992;138139.

    • Search Google Scholar
    • Export Citation

Advertisement

ECG of the Month

View More View Less
  • 1 Section of Cardiology, Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610-0126.
  • | 2 Section of Cardiology, Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610-0126.
  • | 3 Section of Cardiology, Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610-0126.

Contributor Notes

Address correspondence to Dr. Estrada.