Electrocardiographic Diagnostic Dilemmas in Myocardial Ischemia and Infarction
Since Einthoven’s description of the electrocardiogram, the utility of this diagnostic tool has increased rapidly as clinical experience has spread. Nevertheless, the electrophysiologic basis of the normal human electrocardiogram has lagged far behind the clinical expansion of the ECG. Description of normal phenomenon and abnormal rhythms was rapidly forthcoming but it has been only after many decades of use that the clinician has become increasingly aware of some of the pitfalls and diagnostic dilemmas which present themselves as electrocardiographic problems. This chapter deals specifically with the potential difficulties that the clinician might observe in the electrocardiographic assessment of myocardial infarction.
KeywordsAction Potential Duration Left Bundle Branch Block Mitral Valve Prolapse Right Bundle Branch Block Blunt Chest Trauma
Unable to display preview. Download preview PDF.
- 2.Scher AM, Young AC: The pathway of ventricular depolarization in the dog. Circ Res 4:461, 1965.Google Scholar
- 3.Durrer D, et al: Total excitation of the human heart. Circulation 41:895, 1970.Google Scholar
- 6.Toyoshima H, et al: The nature of normal and abnormal electrocardiograms. VOL Relation of ST segment and T wave changes to intracellular potentials. Arch Intern Med 1 15:4, 1965.Google Scholar
- 10.Perloff JK: The clinical recognition of congenital heart disease. Philadelphia, WB Saunders, 1970.Google Scholar
- 13.Nora TR, Pilz CG: Pseudoinfarction pattern associated with electrolyte disturbance. Arch Intern Med 104:300, 1959.Google Scholar
- 17.Buja LM, Khoi NB, Roberts WC: Clinically significant cardiac amyloidosis: clinicopathologic findings in fifteen patients. Am Heart J 26:394, 1970.Google Scholar
- 18.Tugan SK, Mau RD, Schwartz MJ: Anterior myocardial infarction patterns in the mitral valve prolapse -systolic click syndrome. Am Heart J 58:719, 1975.Google Scholar
- 24.Biberman L, Sarma RN, Surawicz B: T-wave abnormalities during hyperventilation and isoproterenol infusion. Am Heart J 8L 166, 1977.Google Scholar
- 25.Yu PNG, Yim BJB, Stanfiels CA: Hyperventilation syndrome. Arch Intern Med 103:902, 1959.Google Scholar