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Antegrade Pyelogram

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Ladan Mohammad-Zadeh, DVM, DACVECC, and Alan Lipman, DVM, DACVR, perform an antegrade pyelogram on a dog to diagnose a ureteral obstruction.

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Alan Lipman's picture
Alan Lipman

DVM DACVR

Enrolled: 08/2011

Ladan Mohammad-Zadeh's picture
Ladan Mohammad-Zadeh

DVM DACVECC

Enrolled: 08/2011

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Courtney Anders's picture

Cool case, did the dog go to surgery? Follow up? --Adrianne Fairbanks, DVM

Megan Brashear's picture

These owners ultimately decided not to move forward with surgery, the dog was systemically ill and the outcome was euthanasia.

cindy kneebone's picture

What was the radio opaque medium used for the patient study and the dose you would use? thank you

Ladan Mohammad-Zadeh's picture

Hi Cindy! That's a fantastic question. There are different types of contrast media. For this we used iohexol (Omnipaque is one of the brand names). It is non-ionic contrast medium. It is lower in osmolality and less irritating than ionic contrast media. Although since it is technically not being filtered through the kidney, it would have been ok to use Hypaque. As far as the dose - there isn't a specific dose. The protocol is to aspirate the contents of the renal pelvis and then inject that same volume back in. Usually it is less than few mililiters depending on the size of the patient. And because the renal pelvis can dilate to a large degree, it is difficult to come up with a ml/kg dose that can be consistently used. I hope that answers your question!