Published in Am J Cardiol on June 01, 1971
Pseudo AV block produced by concealed extrasystoles arising below the bifurcation of the His bundle. Br Heart J (1974) 0.96
Concealed AV junctional extrasystoles simulating second-degree sinoatrial block. Br Heart J (1975) 0.75
Immediate effects of intravenous verapamil in cardiac arrhythmias. Br Med J (1972) 3.05
Characteristics and possible mechanism of ventricular arrhythmia dependent on the dispersion of action potential durations. Circulation (1983) 2.74
Immediate effects of intravenous propranolol on various cardiac arrhythmias. Am J Cardiol (1966) 1.67
Relationship between electrocardiogram and electrolytes. Am Heart J (1967) 1.53
Escape-capture bigeminy. Mechanisms in S-A block, A-V block, and reversed reciprocal rhythm. Br Heart J (1965) 1.52
Electrotonic inhibition of an idioventricular escape focus by nonconducted sinus impulses. Am Heart J (1988) 1.41
Negative U wave: a highly specific but poorly understood sign of heart disease. Am J Cardiol (1982) 1.38
Irregularity of an escape rhythm related to the preceding cycle length. Am Heart J (1988) 1.38
Cycle length effect on restitution of action potential duration in dog cardiac fibers. Am J Physiol (1983) 1.37
The Wenckebach phenomenon in sino-atrial block. Br Heart J (1966) 1.34
Immediate effects of intravenous verapamil on atrial fibrillation. Cardiovasc Res (1971) 1.27
Ectopic beats and atrioventricular conduction disturbances. In patients with hypopotassemia. Arch Intern Med (1967) 1.27
Electrophysiologic effects of phenothiazines on canine cardiac fibers. J Pharmacol Exp Ther (1973) 1.25
Effects of low and high concentrations of potassium on the simultaneously recorded Purkinje and ventricular action potentials of the perfused pig moderator band. Circ Res (1968) 1.22
Ventricular fibrillation. Am J Cardiol (1971) 1.20
Personal experience. S Afr Med J (1976) 1.17
Pre-excitation as a cause of appearance and increased intensity of systolic murmurs. Circulation (1966) 1.17
Genesis and evolution of ectopic ventricular rhythm. Br Heart J (1966) 1.17
The theory and mechanism of the Wenckebach phenomenon. S Afr Med J (1967) 1.16
Mechanisms in reciprocal rhythm. Am J Cardiol (1969) 1.13
T-wave abnormalities during hyperventilation and isoproterenol infusion. Am Heart J (1971) 1.09
Mechanism of ventricular arrhythmias caused by increased dispersion of repolarization. Eur Heart J (1985) 1.08
Ulcerative colitis in the South African Bantu. Gut (1970) 1.08
Dispersion of ventricular repolarization and arrhythmia: study of two consecutive ventricular premature complexes. Circulation (1985) 1.08
Long QT: good, bad or indifferent? J Am Coll Cardiol (1984) 1.06
Hemodynamic and electrocardiographic effects of hyperpotassemia. Differences in response to slow and rapid increases in concentration of plasma K. Am Heart J (1967) 1.06
Idioventricular tachycardia. Dis Chest (1969) 1.04
Effects of K+ and K+-induced polarization on (dV/dt)max, threshold potential, and membrane input resistance in guinea pig and cat ventricular myocardium. Circ Res (1979) 1.04
Significance of retrograde conduction in A-v dissociation. Br Heart J (1965) 1.03
The quest for optimal electrocardiography. Tast Force I: standardization of terminology and interpretation. Am J Cardiol (1978) 1.02
Role of electrolytes in etiology and management of cardiac arrhythmias. Prog Cardiovasc Dis (1966) 1.02
Ventricular fibrillation. J Am Coll Cardiol (1985) 1.02
Long-term prevention of paroxysmal arrhythmias with propranolol therapy. Am J Med Sci (1967) 1.01
Effect of antiarrhythmic drugs on the cycle length-dependent action potential duration in dog Purkinje and ventricular muscle fibers. J Cardiovasc Pharmacol (1986) 1.00
Electrocardiogram in pericarditis. Am J Cardiol (1970) 1.00
Primary T wave abnormalities caused by uniform and regional shortening of ventricular monophasic action potential in dog. Circulation (1975) 0.99
Reversal of the cardiovascular effects of verapamil by calcium and sodium: differences between electrophysiologic and hemodynamic responses. Circulation (1979) 0.99
Monophasic action potentials in man. Circulation (1968) 0.99
Alternans of action potential duration after abrupt shortening of cycle length: differences between dog Purkinje and ventricular muscle fibers. Circ Res (1988) 0.98
Cardiac function in patients treated with phenothiazines. Comparison with quinidine. J Clin Pharmacol (1975) 0.98
Dispersion of monophasic action potential durations and activation times during atrial pacing, ventricular pacing, and ventricular premature stimulation in canine ventricles. Cardiovasc Res (1983) 0.98
Electrocardiographic diagnosis of chamber enlargement. J Am Coll Cardiol (1986) 0.97
Action potential duration alternans in dog Purkinje and ventricular muscle fibers. Further evidence in support of two different mechanisms. Circulation (1989) 0.96
The problem of lone atrial fibrillation. S Afr Med J (1967) 0.96
The Wenckebach phenomenon in left bundle branch block. Am J Cardiol (1969) 0.96
Exercise testing for detection of myocardial ischemia in patients with abnormal electrocardiograms at rest. Am J Cardiol (1978) 0.95
Atrial parasystole. Br Heart J (1970) 0.94
Acute pulmonary embolism. Heart Lung (1980) 0.93
The electrocardiology of right ventricular myocardial infarction. Chest (1986) 0.93
Use-dependent effects of amiodarone on Vmax in cardiac Purkinje and ventricular muscle fibers. Eur J Pharmacol (1985) 0.93
Idioventricular tachycardia. J Electrocardiol (1968) 0.92
Sequence of repolarization on the ventricular surface in the dog. Am Heart J (1975) 0.92
The QT interval and cardiac arrhythmias. Annu Rev Med (1987) 0.92
A coding system for cardiac arrhythmias. J Electrocardiol (1970) 0.92
Functional characteristics of the Wolff-Parkinson-White bypass. A study of six patients with His bundle electrograms. Am Heart J (1973) 0.92
Relation of vulnerability to ECG and action potential characteristics of premature beats. Am J Physiol (1967) 0.92
Electrocardiogram in endocrine and metabolic disorders. Cardiovasc Clin (1977) 0.91
Concealed Wenckebach phenomena in the left bundle-branch. Br Heart J (1972) 0.91
Reciprocal rhythm, the Wolff-Parkinson-White syndrome, and unidirectional block. Br Heart J (1969) 0.90
Fundamental mechanisms in the genesis and evolution of myocardial fibrillation. S Afr Med J (1969) 0.89
Electrophysiologic and hemodynamic effects of verapamin. Correlation with plasma drug concentrations. Circulation (1978) 0.89
The localization of bypass tracts in the Wolff-Parkinson-White syndrome from the surface electrocardiogram. Am Heart J (1987) 0.89
Frequency-dependent effects of several class I antiarrhythmic drugs on Vmax of action potential upstroke in canine cardiac Purkinje fibers. J Cardiovasc Pharmacol (1985) 0.88
Automatic activity in depolarized guinea pig ventricular myocardium. Characteristics and mechanisms. Circ Res (1976) 0.88
Effects of new beta-blocking agent (DL-tiprenolol) on conduction within normal and anomalous atrioventricular pathways in Wolff-Parkinson-White syndrome. Br Heart J (1972) 0.87
Effect of tetraethylammonium chloride on action potential in cardiac Purkinje fibers. Am J Physiol (1981) 0.87
How to approach an arrhythmia. Circulation (1973) 0.87
Ventricular extrasystoles, ventricular tachycardia, and ventricular fibrillation: clinical-electrocardiographic considerations. Prog Cardiovasc Dis (1980) 0.86
Intracardiac extrastimulation studies: How to? Where? By whom? Circulation (1982) 0.86
Escape-capture bigeminy caused by blocked atrial extrasystoles. Br Heart J (1975) 0.86
Gas-forming infection of the thyroid gland. Clin Radiol (1966) 0.86
Location of the pre-excitation areas in the Wolff-Parkinson-White syndrome. Am J Cardiol (1967) 0.86
A study of ventricular ectopy during atrial fibrillation. Heart Lung (1985) 0.85
Atrioventricular junctional parasystole with concealed conduction simulating second degree atrioventricular block. Am J Cardiol (1973) 0.85
Cycle length-dependent action potential duration in canine cardiac Purkinje fibers. Am J Physiol (1984) 0.85
Right bundle-branch block associated with transient left posterior hemiblock in a case of acute myocardial infarction. S Afr Med J (1974) 0.84
Role of the phonocardiogram in evaluation of the severity of mitral stenosis and detection of associated valvular lesions. Circulation (1966) 0.84
Bradycardia-dependent long QT syndrome, sudden death and late potentials. J Am Coll Cardiol (1992) 0.84
Familial congenital sinus rhythm anomalies: clinical and pathological correlations. Pacing Clin Electrophysiol (1992) 0.84
Editorial: Calcium responses ("calcium spikes"). Am J Cardiol (1974) 0.83
Ventricular fibrillation and dispersion of repolarization. J Cardiovasc Electrophysiol (1997) 0.83
Wenckebach phenomenon in left bundle branch block. Am J Cardiol (1970) 0.83
Ventricular monophasic action potential changes associated with neurogenic T wave abnormalities and isoproterenol administration in dogs. Am J Cardiol (1976) 0.83
Verapamil plasma levels and ventricular rate response in patients with atrial fibrillation and flutter. Clin Pharmacol Ther (1979) 0.83
Effect of isoproterenol on the abnormal T wave. Am J Cardiol (1972) 0.82
Prognosis of patients with chronic bifascicular block. Circulation (1979) 0.82
Prolongation of the Q-T interval with myocardial contusion. Heart Lung (1978) 0.82
Variable effects of isoproterenol on action potential duration in guinea-pig papillary muscle: differences between nonsteady and steady state; role of extracellular calcium concentration. J Pharmacol Exp Ther (1982) 0.82
President's page: how to persuade the U.S. Congress to appropriate more money for heart research. Am J Cardiol (1979) 0.81
Tall and peaked U waves in hypokalemia. Chest (1987) 0.81
Supernormal modulation of ventricular parasystole: the triphasic phase-response curve. Am J Cardiol (1986) 0.81
Evaluation of treatment of acute myocardial infarction with potassium, glucose and insulin. Prog Cardiovasc Dis (1968) 0.81
Significance of exercise-induced second degree atrioventricular block. Br Heart J (1975) 0.81
Consensus statement of the Conference on the State of the Art of Electrophysiologic Testing in the Diagnosis and Treatment of Patients with Cardiac Arrhythmias. Circulation (1987) 0.81
Periodic variation in A-V conduction time: the 'supernormal' phase of A-V conduction. A study in differential dual A-V pathway conductivity and refractoriness. J Electrocardiol (1973) 0.81
The effects of amiodarone on repolarization and refractoriness of cardiac fibers. Eur J Pharmacol (1988) 0.80
Prognosis of ventricular arrhythmias in relation to sudden cardiac death: therapeutic implications. J Am Coll Cardiol (1987) 0.80
The clinical use of intravenous verapamil. Am Heart J (1980) 0.80
Transient, "paradoxical" effects of increasing extracellular K+ concentration on transmembrane potential in canine cardiac purkinje fibers. Role of the na+ pump and k+ conductance. Circ Res (1977) 0.80