Tag: pulse
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Early observations of the pulse
JMS PearceHull, England Over the centuries, various devices bearing names now unfamiliar (Clepsydra, water clock, pulsilogium, Sphygmologia, Pulse Watch) were used to measure the pulse.The examination of the pulse to assist in diagnosis and prognosis dates back to ancient Egyptian, Indian, and Chinese physicians. Because they had little understanding of cardiovascular physiology, we might wonder…
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Christopher Wren and blood circulation
Richard de GrijsSydney, AustraliaDaniel VuillerminBeijing, China “A young man of marvellous gifts who, when not yet sixteen years of age, advanced astronomy, gnomonics, statics, and mechanics by his distinguished discoveries, and from then on continues to advance these sciences. And truly he is the kind of man from whom I can shortly expect great things.”…
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Measure of the heart: Santorio Santorio and the pulsilogium
Richard de GrijsDaniel VuillerminBeijing, China The heart is a musical organ. The irregularity of one’s inhalation and exhalation of air defies musicality, while the involuntary rumbling of moving gas in the intestines is embarrassingly analogous to the timbre of the tuba or trombone. Biomedical terminology and poetry are seemingly antithetical, but of the heart they…
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The pulsilogium and the diagnosis of love sickness
Donatella LippiGiuseppe MasciaLuigi PadelettiFlorence, Italy Doctors since time immemorial have felt the pulse of their patients, noting its regularity, frequency, strength, and breadth, at times using colorful expressions to variously describe it as “formicant” or “vermicular” (ant-like or worm-like),1 and diagnosing “love sickness” in maidens by the presence of the so-called pulsus amatorius. (Fig 1.)…