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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 | ||
In '''1843''' Emil Du Bois-Reymond, a german physiologist, was the firt 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. | In '''1843''' Emil Du Bois-Reymond, a german physiologist, was the firt 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> | ||
In '''1850''' M. Hoffa described how he could induce irregular contractions of the ventricles of doghearts by administering electrical shock. | 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. | In '''1887''' the English physiologist Augustus D. Waller from Londen published the first human electrocardiogram. He used a capillar-electrometer. <cite>Waller</cite> | ||
[[wikipedia: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. | [[wikipedia: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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In 1905 Einthoven recorded the first 'telecardiogram' from the hospital to his laboratoy 1.5 km away. | In 1905 Einthoven recorded the first 'telecardiogram' from the hospital to his laboratoy 1.5 km away. | ||
In 1906 Einthoven published the first article in which he described a series of abnormal ECGs: left- and right bundlebranchblock, left- and right atrialdilatation, the U wave, notching of the QRS complex, ventricular extrasystoles, bigemini, atrialflutter and total AV block. | In 1906 Einthoven published the first article in which he described a series of abnormal ECGs: left- and right bundlebranchblock, left- and right atrialdilatation, the U wave, notching of the QRS complex, ventricular extrasystoles, bigemini, atrialflutter and total AV block. <cite>Einthoven</cite> | ||
{{clr}} | {{clr}} | ||