3183592?1344634338
David Rudnick, M.D.  
Male
Petaluma, CA

Marin Specialty Care - Urology
Urologist
707-762-0059
Petaluma, CA
My Posts
Sep 20, 2013 in the Kidney Stones Expert Forum - 2
Its unlikely that the bulge was related to kidney stones or inflammation. Perhaps a flank hernia?? I'm not sure what they mean by "inflammation." On a CT scan one can see "stranding" around the kidney or ureter, but this could be the result of a long ago episode. Kidney stones are RARELY a danger to your kidney function, so I woul...
Sep 20, 2013 in the Kidney Stones Expert Forum - 6
There is really nothing that will make non-obstructing stones sitting in the kidneys come out faster. People have tried massive fluids, medications, and standing on their heads, and none has been better than no intervention. A stone passing in the ureter can be sped along by pushing fluids and sometimes using a medication like tamsulosin, which dilates the ...
Mar 21, 2013 in the Kidney Stones Expert Forum - 1
No restrictions once you feel like it.
Mar 21, 2013 in the Kidney Stones Expert Forum - 1
This all sounds reasonable. Lithotripsy can be done with US guidance on some machines, but most use x-ray. 20 days after URS you should be able to travel. Stents are not comfortable, but I'd say 10% is a reasonable estimate for people who are really miserable with them.
Mar 21, 2013 in the Kidney Stones Expert Forum - 3
Yes, there is a significant risk of having the stent in this long. Stents can become encrusted and occluded when left in this long and can actually block and PERMANENTLY damage your kidney. They can be difficult to remove if they have been left in this long. You need to get this stent out one way or another.
Mar 21, 2013 in the Kidney Stones Expert Forum - 3
stones less than 5 mm have a high chance of passing on their own, like 80%, but these numbers allow a month for spontaneous passage. The higher a stone is when it gets caught, the lower its rate of passage, so a 4mm stone in the upper ureter has a lower spontaneous passage rate than a 4mm stone in the distal ureter.
Mar 21, 2013 in the Kidney Stones Expert Forum - 4
Hopefully you have passed it by now. The urinary symptoms and groin pain you describe are classic for a stone right near the bladder. Most 3mm UVJ stones pass without surgery, and Flomax and fluids are all you can do. If it has not passed, the treatment of choice would probably be ureteroscopy, an endoscopic procedure to break up and remove the stone.
Mar 21, 2013 in the Kidney Stones Expert Forum - 3
US is not a super accurate way to measure the size of a stone, so I would probably have you get a simple abdominal X-ray. If the stone is truly 4.9mm, it is passable without surgery, and the most effective medication to help it along is called tamsulosin (Flomax).
Mar 21, 2013 in the Kidney Stones Expert Forum - 1
pregnancy causes changes in body chemistry that can lead to stones. You would need to do a urine chemistry test after your pregnancy ends to find if you are at increased risk for stones going forward. Prenatal vitamins are unlikely to cause stones, and are of critical importance to a healthy pregnancy.
Feb 23, 2013 in the Kidney Stones Expert Forum - 2
With that many stones you should have a 24 hour urine collection to evaluate your urine chemistry while eating and drinking your regular diet. Only then can you know what aspects of your urinary chemistry are causing your stones. Your oxalates may be normal, but your calcium might be high, vice versa. Below is a link to a stone testing service that lists t...