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Basics: Difference between revisions
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→The history of the ECG
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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 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. ''Du Bois-Reymond, E. Untersuchungen uber thierische Elektricitat. Reimer, Berlin: 1848.'' | 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. ''Du Bois-Reymond, E. Untersuchungen uber thierische Elektricitat. Reimer, Berlin: 1848.'' | ||
In '''1850''' M. Hoffa described how he could induce irregular contractions of the ventricles of doghearts by administering electrical shock. ''Hoffa M, Ludwig C. 1850. Einige neue versuche uber herzbewegung. Zeitschrift Rationelle Medizin, 9: 107-144'' | In '''1850''' M. Hoffa described how he could induce irregular contractions of the ventricles of doghearts by administering electrical shock. ''Hoffa M, Ludwig C. 1850. Einige neue versuche uber herzbewegung. Zeitschrift Rationelle Medizin, 9: 107-144'' | ||