Correlation of Pathologic Q Waves on the Standard Electrocardiogram and the Epicardial Electrogram of the Human Heart
نویسنده
چکیده
I. Fortuin NJ, Friesinger GC: Exercise-induced S-T segment elevation: Clinical, electrocardiographic and arteriographic studies in twelve patients. Am J Med 49: 459, 1970 2. MacAlpin RN, Kattus AA, Alvaro AB: Angina pectoris at rest with preservation of exercise capacity: Prinzmetal's variant angina. Circulation 47: 946, 1973 3. Gorlin R, Klein MD, Sullivan JM: Prospective correlative study of ventricular aneurysm: Mechanistic concept and clinical recognition. Am J Med 42: 512, 1967 4. Bruce RA, Gey GO Jr, Cooper MN, Fisher LD, Peterson DR: Seattle heart watch: Initial clinical, circulatory and electrocardiographic responses to maximal exercise. Am J Cardiol 33: 459, 1974 5. Bruce RA, Hornsten TR: Exercise stress testing in evaluation of patients with ischemic heart disease. Prog Cardiovasc Dis 11: 371, 1969 6. Rosenberg B, Messinger WJ: The electrocardiogram in ventricular aneurysm. Am Heart J 37: 267, 1949 7. Ford RV, Levine HD: The electrocardiographic clue to ventricular aneurysm. Ann Intern Med 34: 998, 1951 8. Douglas AH, Sferrazza J, Marici F: Natural history of aneurysm of ventricle. NY State J Med 62: 209, 1962 9. Bruce RA, Fisher LD, Cooper MN, Gey GO: Separation of effects of cardiovascular disease and age on ventricular function with maximal exercise. Am J Cardiol 34: 757, 1974 10. Master AM, Rosenfeld I: Two-step exercise test: Current status after twenty-five years. Mod Concepts Cardiovasc Dis 36: 19, 1967 11. Redwood DR, Epstein SE: Uses and limitations of stress testing in the evaluation of ischemic heart disease. Circulation 46: 1115, 1972 12. Kroop IG, Jaffe HL, Master AM: The significance of RS-T elevation in acute coronary insufficiency. Bull NY Acad Med 25: 465, 1949 13. Manvi KN, Ellestad MH: Elevated ST segments with exercise in ventricular aneurysm. J Electrocardiol 5: 317, 1972 14. Kemp GL: Value of treadmill stress testing in variant angina pectoris. Am J Cardiol 30: 781, 1972 15. Hegge FN, Tuna N, Burchell HB: Coronary arteriographic findings in patients with axis shifts or S-T-segment elevations on exercise-stress testing. Am Heart J 86: 603, 1973 16. Groden BM, James WB: Significance of persistent R-ST elevation after acute myocardial infarction. Br Heart J 31: 34, 1969
منابع مشابه
Correlation of pathologic Q waves on the standard electrocardiogram and the epicardial electrogram of the human heart.
To evaluate the relationship between abnormal Q waves on the standard ECG and localized ventricular excitation, unipolar epicardial electrograms were recorded over the left ventricle during aortocoronary bypass surgery in 36 patients. Of 20 without standard ECG Q waves, six had abnormal epicardial Q waves, three anterioly and three inferiorly. Of 16 patients with standard ECG Q waves, four had ...
متن کاملComparison of the effects of different doses of acepromazine-xylazine on the electrocardiogram in dogs
Seventy seven adult large mixed breed dogs of either sex were included in this study. The animals were randomly divided into four groups and received the following drug combinations intramuscularly: Group 1 xylazine (0.5 mg/kg) and acepromazine (0.05 mg/kg), Group 2 xylazine (0.8 mg/kg) and acepromazine (0.03 mg/kg), Group 3 xylazine (0.3 mg/kg) and acepromazine (0.08 mg/kg) and Group 4 xylazin...
متن کاملDetermination the Normal Parameters (amplitude and duration) of Electrocardiogram Waves in River Buffaloes (Bubalus Bubalis) of Khuzestan
An easy way to evaluate the cardiovascular system is recording the cardiac electrical activities. Reviewing the available literatures suggests that buffalos ECG compared to other large animals have been neglected and the carried out studies in this field are too limited. Using this method for the diagnosis of cardiac disorders needs the standardization, not only among animal species but also am...
متن کاملComparison of the Effect of Continuous and Interval Aerobic Training on Electrocardiogram of Active Young Girls
Aims Few studies have examined the effects of various models of aerobic training on electrocardiogram (ECG). The purpose of this study was to compare the effect of continuous and interval aerobic training on ECG of active young girls. Methods & Materials The research method was quasi-experimental and 30 active young girls were selected from among physical education students (age=17.0±0.4 yr) ...
متن کاملMacroscopic Visualization of the Heart Electrical Activity Via an Algebraic Computer Model
In this study, a mathematical model is developed based on algebraic equations which is capable of generating artificially normal events of electrocardiogram (ECG) signals such as P-wave, QRS complex, and T-wave. This model can also be implemented for the simulation of abnormal phenomena of electrocardiographic signals such as ST-segment episodes (i.e. depression, elevation, and sloped ascending...
متن کاملSliding Mode Control For Heartbeat Electrocardiogram Tracking Problem
In this paper, we have exploited the first-order sliding mode control method to track the ECG data of the human heart by three different nonlinear control laws. In order to lessen the intrinsic chattering of the classic sliding mode control system, smooth function approximations of the control input, by means of the hyperbolic tangent and the saturation function, were used. The fast Fourier tra...
متن کامل