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Monday, 2 November 2015

Kidney stone

The existence of kidney stones was first recorded thousands of years ago, and lithotomy for the removal of stones is one of the earliest known surgical procedures. Ammonius, who practiced lithotomy in Alexandria in around 200 BC, acquired the surname Lithotomus from the instrument he developed for fragmenting stones too large to pass through a small perineal incision.

Dornier MedTech introduced in 1980. extracorporeal shock wave lithotripsy for breaking up stones via acoustical pulses, and this technique has since come into widespread use.

In the United States about 9% of the population has had a kidney stone.

The actor William Shatner sold his kidney stone in 2006 for US$25,000, which paid for the building of a house by Habitat for Humanity.

A 2016 study found that the Thunder Mountain roller coaster at Disney World reliably makes people pass kidney stones.

The Guinness World record for the largest kidney stone was set by Vilas Ghuge of India in 2004 when he had a 13cm (5.1 in) stone removed.

A study found that riding the Big Thunder Mountain Railroad roller coaster at Disney World helps ease the passage of small kidney stones.

Kidney stones are so painful to pass through because they crystallize on their way out.

People who meet their calcium need reduce their risk of developing kidney stones.

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