DEPARTMENT OF UROLOGY EDUCATION

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Dr Abraham Benjamin - Manager Medical InformaticsMr. Naresh Kumar - Coordinator Medical Informatics

Antegrade Pyelography/Retrograde Pyelography

What is Antegrade Pyelography?

Antegrade pyelography is a diagnostic test that uses special contrast agent (dye) to produce detailed X-ray pictures of the upper urinary tract (kidney and ureter).

Anatomy of the Urinary Bladder

What is the use of Antegrade Pyelography?

It is commonly used to diagnose the following conditions hydronephrosis, ureteropelvic junction (UPJ) obstruction and obstruction of the ureters.

How is the test performed?

The kidneys will initially be examined with an ultrasound probe or a CT scan. After they are located, the overlying skin will be anesthetized and a needle will be passed directly into the kidney.

This needle is used to inject dye to outline the

renal collection system (part of the urinary tract draining urine between the kidney and bladder) on X-ray images and detect any blockages or obstructions.

What are the risk /complications of Antegrade Pyelography ?

The major risk involves a reaction to the iodine-based dye.

Minor reactions include hot flashes, nausea and vomiting.

In very rare circumstances, more severe complications like breathing difficulties, low blood pressure, swelling of the mouth can occur.

How does Antegrade Pyelography look like?

Normal Antegrade Pyelogram Obstructed Antegrade Pyelogram

What is Retrograde Pyelography?

Retrograde pyelography uses special contrast agent (dye) to produce detailed X-ray pictures of the ureters and kidneys. The difference is that in retrograde pyelography the dye is injected directly into the ureters rather than into a vein.

It is better suited to see the definition of the upper urinary tract, particularly the ureter and kidney

When is Retrograde Pyelography used ?

Commonly performed when an IVP produces an inadequate image, it also complements cystoscopy while investigating a patient with hematuria or recurrent or suspected cancer.

How is the test performed ?

This test is performed in a hospital radiology department by a urologist and is typically carried out under general anesthesia.

Cystoscopy is performed and the small catheter is

inserted into the opening of the ureter in the bladder. Dye is injected and fluoroscopy is performed to visualize the ureters and kidneys. The entire study can take 15 to 30 minutes and is done on an outpatient basis.

What is the risk /complications for Retrograde Pyelography?

The complications of Retrograde Pyelography are same as that of Antegrade Pyelography.

There may be additional problems such as a urinary tract infections .

How does Retrograde Pyelogram look like ?

Normal Retrograde Pyelogram Obstructed Retrograde Pyelogram

Important Information

If you need to get this test done or meet our team of Urologists for Consultation click on the link below.

http://www.ramayyapramila.com/

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