Bradycardia historical perspective: Difference between revisions
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==Historical Perspective== | ==Historical Perspective== | ||
*In 1839, Jan Evangelista [[Purkinje fibers|Purkinje]] discovered a net of gelatinous fibres in the sub[[endocardium]] of the heart. | *In 1839, Jan Evangelista [[Purkinje fibers|Purkinje]] discovered a net of gelatinous fibres in the sub[[endocardium]] of the heart.<ref name="pmid16769927">{{cite journal |vauthors=Silverman ME, Grove D, Upshaw CB |title=Why does the heart beat? The discovery of the electrical system of the heart |journal=Circulation |volume=113 |issue=23 |pages=2775–81 |date=June 2006 |pmid=16769927 |doi=10.1161/CIRCULATIONAHA.106.616771 |url=}}</ref> | ||
*Walter Gaskell in the 1880s observed that the impulse of the heart began in the [[sinus venosus]], and that this region had the most rhythmic ability. | *Walter Gaskell in the 1880s observed that the impulse of the heart began in the [[sinus venosus]], and that this region had the most rhythmic ability. | ||
*A conducting bundle between the [[Atrium (heart)|atrium]] and the [[ventricle]] was found by Wilhelm His, Jr in 1893. | *A conducting bundle between the [[Atrium (heart)|atrium]] and the [[ventricle]] was found by Wilhelm His, Jr in 1893. | ||
Revision as of 18:58, 28 August 2020
Overview
In 1839, Jan Evangelista Purkinje discovered a net of gelatinous fibres in the subendocardium of the heart. Walter Gaskell in the 1880s observed that the impulse of the heart began in the sinus venosus, and that this region had the most rhythmic ability. A conducting bundle between the atrium and the ventricle was found by Wilhelm His, Jr in 1893. In 1906, Sunao Tawara found a “complex Knoten” of tissue at the proximal end of the His bundle. He concluded that this was the inception of an electrical conducting system that continued from the AV node through the bundle of His, divided into the bundle branches, and terminated as the Purkinje fibres. In 1906, Martin Flack, a medical student, reported to Keith the first observation of the mammalian sinoatrial node (SAN).
Historical Perspective
- In 1839, Jan Evangelista Purkinje discovered a net of gelatinous fibres in the subendocardium of the heart.[1]
- Walter Gaskell in the 1880s observed that the impulse of the heart began in the sinus venosus, and that this region had the most rhythmic ability.
- A conducting bundle between the atrium and the ventricle was found by Wilhelm His, Jr in 1893.
- In 1906, Sunao Tawara found a “complex Knoten” of tissue at the proximal end of the His bundle. He concluded that this was the inception of an electrical conducting system that continued from the AV node through the bundle of His, divided into the bundle branches, and terminated as the Purkinje fibres.
- In 1906, Martin Flack, a medical student, reported to Keith the first observation of the mammalian sinoatrial node (SAN).[2]
References
- ↑ Silverman ME, Grove D, Upshaw CB (June 2006). "Why does the heart beat? The discovery of the electrical system of the heart". Circulation. 113 (23): 2775–81. doi:10.1161/CIRCULATIONAHA.106.616771. PMID 16769927.
- ↑ Silverman ME, Hollman A (October 2007). "Discovery of the sinus node by Keith and Flack: on the centennial of their 1907 publication". Heart. 93 (10): 1184–7. doi:10.1136/hrt.2006.105049. PMC 2000948. PMID 17890694.