The Use of the Valsava-EKG Test for .... Differentiation of Functional from Organic T-Wave Abnormalites

Fabre, H.R. : Cardiac and circulatory consequence of the Valsalva Test. Arch. mal. coeur, 56: 186, 1963.

Master, A. : The two-step exercise EKG in functional heart disturbance and organic heart disease. Circulation, 1: 692, 1950.

Master, A. , and Rosenfield, I. : Criteria for the application of the "two-step" exercise test. J. A. M. A., 178: 283, 1961.

Leon-Sotomavor, L. : Epidemic Diencephalitis: A New Clinical Entity (Monograph). Charles C Thomas, Publisher, Springfield, Ill., in press.

Freedman, M. : The hyperventilation test in patients with neurocirculatory asthenia. Psychosom. Med., 9: 233, 1947.

Elisbert, I.E. : Heart rate response to the Valsalva maneuver as test of circulatory integrity. J. A. M. A., 186: 200, 1963.

Gorlin, R. , Knowles, J.H. , and Storey, C.F. : Valsalva maneuver as test of cardiac function. Pathologic physiology and clinical significance. Am. J. Med., 22: 197, 1957.

Levin, A.B. : Simple test of cardiac function based upon the heart rate changes induced by the Valsalva maneuver. Am. J. Cardiol., 18: 90, 1960.

Rabitaille, G.A. , Phillips, J.H. , Summers, R.G. , and Higgins, T.G. : The value of inspiratory leads in electrocardiographic diagnosis. Dis. Chest, 50: 487, 1966.

Marcus, F.I. , and Westura, E.E. : The hemodynamic effect of the Valsalva maneuver in muscular stenosis. Am. Heart J., 67: 324, 1964.

Whitley, J.E. , and Martin, J.F. : Valsalva maneuver in roentgenologic diagnosis . Am. J. Roentgenol., 91: 297, 1957.

Gorlin, R. , Knowles, J.H. , and Storey, C.F. : Valsalva maneuver as test of cardiac function. Pathologic physiology and clinical significance. Am. J. Med., 22: 197, 1957.

Blom, G.E. : A review of electrocardiographic changes in emotional states. With clinical note in electrocardiograms of 193 psychotic patients. J. Nerv. & Ment. Dis., 113: 283, 1951.

Graybiel, A. , and White, P.D. : Inversion of T-wave in leads I or III of the electrocardiogram in young individuals with neurocirculatory asthenia, with thyrotoxicosis after acute infections and following paroxysmal ventricular tachycardia. Am. Heart J., 10: 345, 1935.

Kedra, M. , and Marikiewicz, M. : ECG abnormalities: organic or functional. Internist Observer , 4: 1, 1966.

Ostrauder, L.D. , and Weinstein , B.J. : Electrocardiographic changes after glucose ingestion. Circulation, 30: 67, 1964.

Wenkos, M.H. : Abnormal cardiac repolarization in schizophrenics. Dis. Nerv. System, 25: 359, 1964.

Nordenfelt, O. : Orthostatic EKG changes and adrenergic beta receptor blocking agent: propranolol (Inderal). Acta med. scandinav., 178: 393, 1965.

Friedberg, C. : Diseases of the Heart, Ed. 3, (a) p. 1723; (b) p. 66; (c) p. 30; (d) p. 738. W. B. Saunders, Philadelphia, 1966.

Wenkos, M.H. , and Logue, R.B. : Ergotamine test in the EKG of patients with neurocirculatory asthenia. Am. Heart J., 31: 711, 1946.

Wenkos, M.H. : The effect of potassium mixture on abnormal cardiac repolarization in hospitalized psychiatric patients. Am. J. M. Sc., 249: 412, 1965.

Castellanos, A. , Leinberg, L. , Salhawck, L. , and Gomez, A. : The morphology of the ST- & T-loop in healed myocardial infarction. Dis. Chest, 50: 113, 1966.

Isaac, J.H. , Wilburne, M. , Mills, H. , and Kuhn, R. : Test in ischemic heart disease. J. A. M. A., 198: 1065, 1966.

Bengtson, E. , and Lamberger, B. : Five-year follow-up study of cases suggestive of acute myocarditis. Am. Heart J., 72: 751, 1966.

Heyer, H.E. , Winans, H.M. , and Plessinger , V.I. : Alterations in the form of the electrocardiograms in patients with mental disease. Am. J. M. Sc., 214: 23, 1947.

Friesinger, G.C. , Likar, I. , Bien, R.O. , and Mason, R.E. : Vasoregulatory asthenia: a cause of false-positive exercise electrocardiogram. Circulation, 90 (Suppl. II): 31, 1965.

Stead, E.A. , Jr.: Hyperventilation, DM, P. 1, February, 1960.

Lown, B. , and Levine, S.A. : The carotid sinus. Circulation, 23: 766, 1961.

Pitt, B. , and Kurland, G.S. : Use of endrophorium chloride (Tensilon) to detect early digitalis toxicity . Am. J. Cardiol., 18: 557, 1966.

Thomsen, J.H. , and Wasserburger , R.H. : Effects of hyperventilation on precordial T-waves of children and adolescents. Circulation , 36: 700, 1967.

Cohen, R.D. , Lloyd, H.G. , and Thomas, C. : False positive master test in myxedema. Brit. M. J., 2: 327, 1966.

Georgoponlos, A.G. , Prondift, W.L. , and Page, I.H. : Effect of exercise on electrocardigrams of patients with low serum potassium. Circulation, 23: 567, 1961.

Bellet, S. , and Roman, L. : The exercise test in hypertensive subjects studied by radio-electro-cardiography . Am. J. M. Sc., 254: 398, 1967.

Fox, I.J. : Effects of the Valsalva maneuver on blood flow in the thoracic aorta in man . J. Appl. Physiol., 21: 1553, 1966.

Meyer, J.S. , Gotoh, F. , Taruykin, T. , and Kakunni, R. : Cerebral hemodynamics, blood gases, and electrolvtes during breath holding and the Valsalva maneuver. Circulation , 33 and 34 (Suppl. II): 35, 1966.

Jacobson, C. , and Schrire, V. : Giant T-wave inversion. Brit. Heart J., 28: 768, 1966.