Výsledky vyhledávání - "JOHN R. BRAUNSTEIN"

Autocorrelation of Ventricular Response in Atrial Fibrillation

Autor: Ernst K. Franke, John R. Braunstein

Publikováno v: Circulation Research. 9:300-304

The autocorrelation function of the ventricular electrocardiogram was calculated on an IBM-650 computer. The resulting function can lie fitted by an exponential-cosine function. This result is typical for a mixture of periodic and unperiodic events.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::82dfa28524b97d2b401f7d2093846b53
https://doi.org/10.1161/01.res.9.2.300

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Anatomic and Electrocardiographic Position of the Heart

Autor: Noble O. Fowler, John R. Braunstein

Publikováno v: Circulation. 3:906-910

Thirty-four patients were studied by electrocardiogram for electrical position of the heart, and by x-ray and angiocardiogram for anatomic position of the heart. A significant association between electrocardiographic and anatomic positions of the hea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c9834f534e522beeb771bfe719fdc3a
https://doi.org/10.1161/01.cir.3.6.906

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Study of High Frequency Components in Electrocardiogram by Power Spectrum Analysis

Autor: David C. Zellner, Ernst K. Franke, John R. Braunstein

Publikováno v: Circulation Research. 10:870-879

A method has been developed for recording the power spectrum of the heart's electromotive force for the time interval corresponding to the QRS complex of the conventional electrocardiogram. Standards for healthy, young normals have been established.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6869d2356bdc7d06ec38b64330936ebf
https://doi.org/10.1161/01.res.10.6.870

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Proposals for Ballistocardiographic Nomenclature and Conventions: Revised and Extended

Autor: WILLIAM R. SCARBOROUGH, SAMUEL A. TALBOT, JOHN R. BRAUNSTEIN, MAURICE B. RAPPAPORT, WILLIAM DOCK, W. F. HAMILTON, JOHN E. SMITH, JOHN L. NICKERSON, ISAAC STARR

Publikováno v: Circulation. 14:435-450

The committee's first report, published in Circulation for June 1953, recommended a terminology and certain conventions for recording ballistocardiograms of the type then in use. However, it soon became apparent that the committee's work was far from

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2eef5120e4c83888108208e2d072239
https://doi.org/10.1161/01.cir.14.3.435

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DESIGN OF A TWO-DIMENSIONAL BALLISTOCARDIOGRAPH 1

Autor: Robert C. Gowdy, John R. Braunstein, Cecil E. Oelker

Publikováno v: Journal of Clinical Investigation. 29:1219-1226

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::14e87d64c0f61ceb16540eceb39e8ea5
https://doi.org/10.1172/jci102360

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A Two-Dimensional Ballistocardiographic Study of 59 Apparently Normal Persons

Autor: Gwendolyn L. Morris, John R. Braunstein

Publikováno v: Circulation. 11:767-773

Simultaneous longitudinal and transverse ballistocardiograms were obtained from 59 apparently normal persons. A highly significant correlation was found to exist between body surface area and basal longitudinal "IJ" amplitude. The significance of thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74ffb7ddc271f2f372b6234354b22f20
https://doi.org/10.1161/01.cir.11.5.767

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The immediate effect of cigarettes on the circulation of healthy and habitual male smokers

Autor: David L. Simon, John R. Braunstein, Arnold Iglauer

Publikováno v: American Heart Journal. 48:185-188

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee2f12a26e55f6a21ce46a71d6177398
https://doi.org/10.1016/0002-8703(54)90171-4

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The Effect of Meals on the Electrocardiogram and the Ballistocardiogram in Patients with Angina Pectoris

Autor: John R. Braunstein, Bernard Berman, Johnson McGuire

Publikováno v: Circulation. 1:1017-1025

The effect of meals on the electrocardiogram and the ballistocardiogram was studied in 59 patients with angina of effort. Approximately one-fourth of the group showed a 0.5 to 1.0 mm. depression of the S-T segment, while the normal controls did not s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee9f560284953bbf37b120a21653d517
https://doi.org/10.1161/01.cir.1.4.1017

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A Study in Frontal Plane Vectorballistocardiography

Autor: John R. Braunstein, Gwendolyn L. Morris

Publikováno v: Circulation. 12:432-438

Frontal plane ballistocardiograms obtained from 10 normal subjects were analyzed and compared with abnormal records obtained from patients with known cardiovascular disease. The normal vector loop is described, and the importance of the transverse ba

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c2e8284209125553bdf4dfdeff08266
https://doi.org/10.1161/01.cir.12.3.432

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Transmural Ventricular Pressures and Pulsus Paradoxus in Experimental Cardiac Tamponade

Autor: Mosche Gueron, John R. Braunstein, Ralph Shabetai, Noble O. Fowler

Publikováno v: Diseases of the Chest. 39:557-568

SUMMARY Transmural pressures were measured from both cardiac ventricles before, during and after experimental cardiac tamponade in open chest dogs. During the control and recovery periods, the transmural pressures were positive in both ventricles. Du

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e5985fa1c9aba9022f4078c1acf708b
https://doi.org/10.1378/chest.39.5.557

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