For Kidney Stone Formers
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MIDDLE AGE AND KIDNEY STONES? WHY NOW?
Middle age 45 - 65, not the usual time to form your first kidney stone. The average for new stone onset is 35, with a spread of about 12 years, so by 45 you might think the odds are in your favor. But not always. Sometimes they start late, even into your fifties or...
SOMETHING SPECIAL WOMEN DO
We have known for a long time that phosphate stone formers are mainly women. We also have long known that phosphate stones form when urine is more alkaline, and that women produce a more alkaline urine than men. So the fact of phosphate stones being more in women...
CANARY IN THE MINESHAFT
The painting by van Gogh, The Sower with Setting Sun (1888) Kroller - Muller Museum, Otterlo, Netherlands, has no obvious connection to this article unless you have read Nellie Hermann's essay on the former mining district of Belgium called the Borinage. Writing in...
How To Count Kidney Stones
The aims of stone prevention are to reduce the number of new stones formed, and to reduce the growth of stones in kidneys by lowering supersaturation. This means we gauge our success by counting and measuring stones. Mostly, radiologists measure and we count. That is...
THE TRUE MEANING OF RENAL CLEARANCE
I put my youngest image here because the groundwork of what I offer belongs to 1965 when I first thought about the problem and 1968 when my paper about it was published. I should have put in as a bookend my latest and oldest image, too, for I completed the thought...
How Plaque Forms
The white clouds you can easily see on this human papillum are Randall's plaque, named for the man who first described them. Stones grow on them. You can find bits of plaque and on such stones where they were once attached. Because plaque forms in and lies in the...
Kidney Stones, Stroke, and Myocardial Infarction
In other articles I have reviewed evidence associating kidney stones with high blood pressure and kidney disease. One might well extrapolate from these two associations that stone forming will also associate with vascular complications such as stroke and myocardial...
HOW TO USE URINE SUPERSATURATIONS
The title accurately reflects the pragmatic value of the new research I review here. This work shows, for the first time, how one can use urine supersaturation measurements as an estimate of kidney stone risk. It also tests more rigorously than any study to date the...
Other Kidney Stone Sites We Recommend
The web is majestic and grand, but filled with mixtures of good and bad reporting and advice. Here I have picked out of a simple Google search - kidney stones - some sites I can recommend. For these I try to make clear what I see in them as well as limitations....
Case 6: Bariatric Surgery and Kidney Injury
Bariatric surgeries can injure kidneys by raising urine oxalate excretion. This latter causes kidney stones, and raises risk of acute and chronic oxalate nephropathy. Overall, their benefits far outweigh these risks, especially when patients and physicians take proper...