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PostPosted: 15 Jun 2015 17:50 
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Charlotte Middlehurst, Shanghai 09 Jun 2015 reports: Doctors remove 420 kidney stones 'caused by excessive tofu' from patient in China

Doctors in China have removed 420 kidney stones from a man's body, blaming an excessive amount of tofu in his daily diet.
Mr He from Zhejiang Province in eastern China, checked into the Dongyang People's Hospital complaining of intense pain in his abdomen last month. A CT scan revealed that his left kidney was packed full of stones, most of them tiny.

Doctors operated on Friday in an agonising procedure that lasted about two hours. Mr He said he had a history of suffering from kidney stones. Twenty years ago he had 10 stones removed by lithotripsy.

"I have worked as a doctor for 30 years and have never seen so many stones," said Zhou Changchun, the attending surgeon, according to state newspaper Qianjiang Evening Post. The unusually high number of stones was attributed to the high concentration of gypsum tofu, a popular local food, in Mr He's diet. The tofu contains calcium sulphate, which cannot be expelled from the body without a sufficient intake of water.

Wei Yubin, the chief surgeon, said that the kidney would have stopped working had Mr He delayed seeking medical attention any longer, and the kidney most likely removed. This time, the doctors used forceps to remove each stone one by one. "We spent 45 minutes just taking out the tiny stones," said Dr Wei. "After the operation, my hands and legs were both numb."

Kidney stones are quite common and usually affect people aged 30 to 60 years. It is estimated that renal colic affects about 10 to 20 per cent of men and three to five per cent of women, according to the NHS.


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 Post subject: CAUSES OF KIDNEY STONES
PostPosted: 16 Jun 2015 01:56 
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Badri, Very interesting to see the Calcium stones in such large numbers.
Allow me to add some patient info on KIDNEY STONES.


Causes of kidney stones

Kidney stones are usually formed following a build-up of a substance in the body.
This build-up may be any of the following:

calcium
ammonia
uric acid (a waste product produced when the body breaks down food to use as energy)
cystine (an amino acid that helps build protein)
Certain medical conditions can lead to an unusually high level of these substances in your urine.

You are also more likely to develop kidney stones if you do not drink enough fluids.

Recurrent kidney stones
You are at a greater risk of developing recurrent (returning) kidney stones if:
you eat a high-protein, low-fibre diet
you are inactive or bed-bound
kidney stones run in your family
you have had several kidney or urinary infections
you have had a kidney stone before, particularly if this was before you were 25
only one of your kidneys works
you have had an intestinal bypass (surgery on your digestive system), or a disease of the small intestine, such as Crohn's disease (inflammation of the gut)

Medication
There is evidence that certain types of medication may increase your risk of developing recurrent kidney stones. These include:
aspirin
antacids
calcium and vitamin D supplements
diuretics (used to reduce fluid build-up)
certain antibiotics
certain antiretroviral drugs (used to treat HIV)
certain anti-epileptic drugs (used to treat conditions such as epilepsy)

Types of kidney stones
Kidney stones can develop as a result of a number of different factors. The causes of the four main types of kidney stone are outlined below.
Calcium stones
Calcium stones are the most common type of kidney stone. They are caused when there is too much calcium in the urine. High amounts of calcium could be a result of:
an inherited condition called hypercalcuria, which leads to large amounts of calcium in urine
high levels of vitamin D
an overactive parathyroid gland (your parathyroid glands help to regulate the amount of calcium in your body)
kidney disease
a rare disease called sarcoidosis
some cancers
Calcium stones are usually either large and smooth or spiky and rough.

Struvite stones
Struvite stones are often caused by infections, and they most commonly occur after a urinary tract infection that has lasted a long time.
Struvite stones are more common in women than in men.

Uric acid stones
Uric acid stones often form when there is a high amount of acid in your urine. Uric acid stones may be caused by:
eating a high protein diet that includes lots of meat
a condition such as gout that prevents the body breaking down certain chemicals
an inherited condition that causes higher levels of acid in the body
chemotherapy (a treatment for cancer)

Cystine stones
Cystine stones are the rarest form of kidney stone. They are caused by an inherited condition called cystinuria, which affects the amount of acid that is passed in your urine.


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