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A Concise History of the ECG: Difference between revisions
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'''1976''' Erhardt and colleagues describe the use of a right-sided precordial lead in the diagnosis of right ventricular infarction which has previously been thought to be electrocardiographically silent. <cite>Erhardt</cite> | '''1976''' Erhardt and colleagues describe the use of a right-sided precordial lead in the diagnosis of right ventricular infarction which has previously been thought to be electrocardiographically silent. <cite>Erhardt</cite> | ||
'''1982''' Hein J. J. Wellens et al first described two electrocardiographic patterns that were predictive of tight, critical stenosis of the proximal left anterior descending (LAD) coronary artery and were subsequently termed Wellens' syndrome. <cite>Wellens</cite> | '''1982''' Hein J. J. Wellens, et al. first described two electrocardiographic patterns that were predictive of tight, critical stenosis of the proximal left anterior descending (LAD) coronary artery and were subsequently termed Wellens' syndrome. <cite>Wellens</cite> | ||
[[File:Wellens' warning.png|thumb|150px|69-year-old black male; no chest pain; troponin 0.17 ng/mL. "Baseline" (top). Current (bottom) two years later; Wellens' warning.]] | [[File:Wellens' warning.png|thumb|150px|69-year-old black male; no chest pain; troponin 0.17 ng/mL. "Baseline" (top). Current (bottom) two years later; Wellens' warning.]] | ||
[[File:Before-and-After copy.gif|thumb|150px|Coronary angiogram showing a tight, critical stenosis (95%) in the proximal left anterior descending coronary artery (left); After placement of a bare-metal stent (right). Wellens' warning.]] | [[File:Before-and-After copy.gif|thumb|150px|Coronary angiogram showing a tight, critical stenosis (95%) in the proximal left anterior descending coronary artery (left); After placement of a bare-metal stent (right). Wellens' warning.]] | ||