Electrocardiograms

Jun 16, 2025

Discover the fascinating history behind electrocardiograms, starting from an early Scottish engineer's breakthrough to the pivotal contributions of Willem Einthoven. Dive into the evolution of heart monitoring technology and its journey from experimental use to essential clinical practice. The impact of animal experimentation on medical advancements and personal stories add depth and humor to this enlightening discussion. Plus, enjoy a whimsical tale that lightens the mood amidst the intriguing medical insights!

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INSIGHT

Electrical and Anatomy Origins

The study of electricity and anatomy merged to enable the electrocardiogram.
Early discoveries in static electricity and anatomy set the foundation for ECG technology.

INSIGHT

First Human Heart Electrical Recording

Alexander Muirhead recorded the first human heart electrical rhythm in 1869.
He used a siphon recorder designed to capture telegraph signals for this purpose.

INSIGHT

Evolution of ECG Leads

Early ECG setups used five leads, including an electrode in the mouth.
Willem Einthoven later reduced these to three effective limb leads with saline buckets.

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The first electrocardiograph was invented in 1895. That device looked a lot different from today’s machines, and there are some other contenders for the title of “first.”

Research:

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Baldassarre, Antonio et al. “The Role of Electrocardiography in Occupational Medicine, from Einthoven's Invention to the Digital Era of Wearable Devices.” International journal of environmental research and public health vol. 17,14 4975. 10 Jul. 2020, doi:10.3390/ijerph17144975
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