Renal Arteriography What to
Renal arteriography is a medical procedure that uses X-rays to visualize the renal arteries, which supply blood to the kidneys. It's performed by injecting a contrast agent into the renal arteries and then taking a series of X-ray images. This procedure is typically done to diagnose and treat conditions affecting the renal arteries, such as:
Arterial stenosis (narrowing of the renal artery)
Arterial aneurysms (bulges in the renal artery)
Arteriovenous malformations (abnormal connections between the arteries and veins in the kidney)
Renal artery dissection (a tear in the renal artery)
Renal artery embolism (a blockage in the renal artery)
Preparation:
Prior to the procedure, you may be asked to:
Fast for several hours beforehand to ensure that your stomach is empty.
Arrange for someone to drive you home after the procedure as you might be sedated.
Discontinue any blood-thinning medications or supplements as they may increase the risk of bleeding during the procedure.
Inform your doctor about any allergies you have, particularly to contrast agents or iodine.
Procedure:
Renal arteriography is typically performed on an outpatient basis. During the procedure:
You will lie down on an examination table and an IV line will be inserted into one of your veins, typically in the arm, elbow or hand, through which the contrast agent will be injected.
A local anesthetic will be applied to the groin or arm to numb the area where the catheter will be inserted.
The radiologist will then insert a thin tube called a catheter into an artery in your groin, or sometimes in the arm, and guide it up to the level of the renal arteries near your kidneys.
Contrast material will be injected through the catheter into the renal arteries.
X-ray images will be taken before, during, and after the contrast injection to evaluate the blood flow and appearance of the renal arteries.
Once the images have been obtained, the catheter will be removed and pressure may be applied to the insertion site to prevent any bleeding.
Post-Procedure Care:
You will be monitored for a period of time after the procedure to ensure that there are no complications. You may experience some discomfort or pain at the insertion site, which can typically be managed with over-the-counter pain relievers. You may be asked to avoid strenuous activities and heavy lifting for up to 24 hours. You should expect to drink plenty of fluids to flush the contrast material out of your system.
Recovery:
Most individuals can return to their usual activities the following day.
Risks:
Overall, renal arteriography is a safe procedure. However, as with any medical procedure, there are some risks involved, such as:
Allergic reaction to the contrast agent
Bleeding or bruising at the insertion site
Infection at the insertion site
Damage to the renal artery
Kidney damage (rare)
Talk to your doctor to understand the potential risks and benefits of the procedure before making a decision.
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