Anatomisch — histologisehe Nachprüfung der Schnittführung an den von Prof. H. E. Hering übersandten Hundeherzen

Tawara, Satoshi

doi:10.1007/bf01681413

Cited by 8 publications

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“…Hering sent four specimens of the dog hearts of which he had tried to cut the bundle and asked Tawara to examine whether the bundle was cut properly in each heart. Tawara 14 replied that the bundle was cut accurately in three of four dog hearts he examined. In his monograph, Tawara devoted one chapter, "Instruction on the method for severing the atrioventricular bundle in animal experiments" to how do it in the dog heart.…”

Section: Collaboration-the Anatomist and Physiologistmentioning

confidence: 99%

Sunao Tawara: A Father of Modern Cardiology

Suma¹

2001

Pacing Clinical Electrophis

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Knowledge of the conduction system of the heart was greatly advanced by Tawara's work carried out in Aschoff's laboratory in Marburg at the beginning of this century. In his monograph, The Conduction System of the Mammalian Heart, published in 1906, Tawara indicated that the treelike structure of specific muscle fibers comprising the atrioventricular node, His bundle, bundle branches, and Purkinje fibers served as the pathway for atrioventricular conduction of excitation in the mammalian heart. From his own anatomic and histological findings of the conduction system, he assumed precisely that the conduction velocity of excitation in the system, except in the atrioventricular node, would be fast and that contraction as the result of excitation would take place at the various sites of the ventricles almost simultaneously. According to Tawara, a long pathway to each contracting unit and a fast conduction velocity of excitation would be a prerequisite for the effective contraction of the ventricles. Tawara's findings and assumptions provided Einthoven the theoretical basis for interpreting the electrocardiogram, resulting in rapid popularization of electrocardiography. This century has witnessed the rapid progress of cardiology, including cardiac pacing and its related sciences. This progress has its roots in the discovery of the conduction system and the development of electrocardiography that took place almost in the same period at the beginning of this century. Tawara's pioneering work on the conduction system still serves as an invaluable reference for basic and clinical research.

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Section: Collaboration-the Anatomist and Physiologistmentioning

confidence: 99%

Sunao Tawara: A Father of Modern Cardiology

Suma¹

2001

Pacing Clinical Electrophis

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The form and function of the auriculo‐ventricular bundle in the rabbit

Lloyd

1930

Am. J. Anat.

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SEVENTEEN FIGURESEt du sensim emoritur cor, videre licet, post duas vel tres pulsationes auricularum, aliquando quasi espergefactum cop respondere, et unum pulsum lente, et aegre peragere et moliri.WILLIAM HARVEY, "De Motu Cordis."One finds it pleasant to recall that the recognition of disturbance in the sequence of contraction in the chambers of the mammalian heart came with the damn of experimental cardiac physiology and the immortal u7ork of its first master. The earliest operations designed to produce artificially auriculoventricular dissociation were unfortunately of a character involving such widespread damage to heart muscle that little information could be gleaned from the varied disturbances of function which resulted. In 1894, the year following his description of the auriculoventricular bundle, William His, Jr.(27 to 29), attempted to destroy the connection between auricle and ventricle in the heart of the rabbit. In preliminary reports he described an experiment in which dissociation of the auricular and ventricular rhythms was produced.He mentioned the illustration of his results by means of a curve, but neither graphic records nor histological evidence have subsequently been submitted. Further work upon various animals, extending over the first decade of the present century, carried out by Humblet(30, 31), Hering(22 to 26),

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Die Physiologie und Pharmakologie des Flimmerns

Boer¹

1923

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Anatomisch — histologisehe Nachprüfung der Schnittführung an den von Prof. H. E. Hering übersandten Hundeherzen

Cited by 8 publications

References 0 publications

Sunao Tawara: A Father of Modern Cardiology

Sunao Tawara: A Father of Modern Cardiology

The form and function of the auriculo‐ventricular bundle in the rabbit

Die Physiologie und Pharmakologie des Flimmerns

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