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A Concise History of the ECG: Difference between revisions
A Concise History of the ECG (view source)
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The history of the ECG goes back more than one and a half century | The history of the ECG goes back more than one and a half century | ||
==1850-1900== | |||
In '''1843''' Emil Du Bois-Reymond, a german physiologist, was the first to describe "action potentials" of muscular contraction. He used a highly sensitive galvanometer, which contained more than 5 km of wire. Du Bios Reymond named the different waves: "o" was the stable equilibrium and he was the first to use the p, q, r and s to describe the different waves. <cite>Dubois</cite> However, in his excellent paper on the 'Naming of the waves in the ECG' Dr Hurst credits Einthoven for being the first to use PQRS and T.<cite>Hurst</cite> | In '''1843''' Emil Du Bois-Reymond, a german physiologist, was the first to describe "action potentials" of muscular contraction. He used a highly sensitive galvanometer, which contained more than 5 km of wire. Du Bios Reymond named the different waves: "o" was the stable equilibrium and he was the first to use the p, q, r and s to describe the different waves. <cite>Dubois</cite> However, in his excellent paper on the 'Naming of the waves in the ECG' Dr Hurst credits Einthoven for being the first to use PQRS and T.<cite>Hurst</cite> | ||
In '''1850''' M. Hoffa described how he could induce irregular contractions of the ventricles of doghearts by administering electrical shock. <cite>Hoffa</cite> | In '''1850''' M. Hoffa described how he could induce irregular contractions of the ventricles of doghearts by administering electrical shock. <cite>Hoffa</cite> | ||
In '''1887''' the English physiologist Augustus D. Waller from Londen published the first human electrocardiogram. He used a capillar-electrometer. <cite>Waller</cite> | In '''1885''' Chauveau was the first to describe complete heart block in a horse while observing ventricular beats without movement of the atrial auricles. | ||
In '''1887''' the English physiologist Augustus D. Waller from Londen published the first human electrocardiogram. He used a capillar-electrometer. <cite>Waller</cite><cite>Waller2</cite> | |||
[[w:Einthoven|The dutchman Willem Einthoven]] (1860-1927) introduced in 1893 the term 'electrocardiogram'. He described in '''1895''' how he used a galvanometer to visualize the electrical activity of the heart. In 1924 he received the Nobelprize for his work on the ECG. He connected electrodes to a patienta showed the electrical difference between two electrodes on the galvanometer. We still now use the term: Einthovens'leads. The string galvanometer (see Image) was the first clinical instrument on the recording of an ECG. | [[w:Einthoven|The dutchman Willem Einthoven]] (1860-1927) introduced in 1893 the term 'electrocardiogram'. He described in '''1895''' how he used a galvanometer to visualize the electrical activity of the heart. In 1924 he received the Nobelprize for his work on the ECG. He connected electrodes to a patienta showed the electrical difference between two electrodes on the galvanometer. We still now use the term: Einthovens'leads. The string galvanometer (see Image) was the first clinical instrument on the recording of an ECG. | ||
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<biblio> | <biblio> | ||
#Dubois Du Bois-Reymond, E. ''Untersuchungen über thierische Elektricität''. Reimer, Berlin: 1848. | #Dubois Du Bois-Reymond, E. ''Untersuchungen über thierische Elektricität''. Reimer, Berlin: 1848. | ||
#Waller2 Waller AD. ''Introductory Address on The Electromotive Properties of the Human Heart''. Brit. Med J, 1888;2:751-754 | |||
#Chauveau Chauveau MA. ''De La Dissociation Du Rythme Auriculaire et du Rythme Ventriculaire.'' Rev. de Méd. Tome V. - Mars 1885: 161-173. | |||
#Hoffa Hoffa M, Ludwig C. 1850. ''Einige neue versuche uber herzbewegung''. Zeitschrift Rationelle Medizin, 9: 107-144 | #Hoffa Hoffa M, Ludwig C. 1850. ''Einige neue versuche uber herzbewegung''. Zeitschrift Rationelle Medizin, 9: 107-144 | ||
#Waller Waller AD. ''A demonstration on man of electromotive changes accompanying the heart's beat.'' J Physiol (London) 1887;8:229-234 | #Waller Waller AD. ''A demonstration on man of electromotive changes accompanying the heart's beat.'' J Physiol (London) 1887;8:229-234 | ||