it is a very important vital parameter, since its alterations - in defect or in excess - can give rise, or be an indication, of very serious disorders.
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The invention of the first sphygmomanometer models dates back to the second half of the nineteenth century, but it was only at the end of the same century that the Italian doctor Scipione Riva-Rocci invented the first mercury sphygmomanometer, still used today.
Currently, there are many types of sphygmomanometer on the market, freely purchasable and usable by anyone. However, it should be noted that the use of such an instrument must be carried out following some important rules in order to avoid measurement errors.
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