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Percutaneous drainage is the technique for draining fluid collections in most body locations. Drain placement is one of the major minimally invasive advances in patient management. This is an image guided procedure. It can be performed with ultrasound or CT fluoroscopic image guidance. When compared with surgical exploration or postoperative patients, the rapid imaging localization and percutaneous treatment of abscesses has played a major role in decreasing the complications that can occur with surgical exploration. Usually patients tend to recover faster as the infected material has been drained.
Need to Know
Nice to Know
How Does It Work?
There are various catheters available for drainage. The decision to drain an abscess under ultrasound or CT guidance is based largely on the location of the abscess, the size of the abscess, and operator preference. A catheter will be placed in the collection. The content in the collection will be aspirated and drained into a drainage bag that will be connected to the catheter. The catheter will be secured to the skin or a commercially available catheter fixation device will be used. You will be asked to sign a consent form before a drain placement.
What Happens — Before, During, and After?
A clinical staff member will bring you into the pre-procedure area and ask you to change into a gown. An intravenous (IV) line will be inserted into a vein in your hand or arm. Your doctor will greet you, review the procedure, and answer any questions you may have. You will be brought into the procedure room, and you‘ll be positioned on the procedure table. You will be connected to a monitor for your heart rate, blood pressure, and pulse.
The technologist will shave, sterilize, and cover the area of your body where the catheter will be inserted with a surgical drape. A local anesthetic is administered to numb the area where the catheter will be placed. Once the area is numb, your doctor or mid-level provider will make a small incision and using image guidance insert a needle into the collection. You might feel some pressure as the wire and catheter are inserted but you should not feel any serious Drainmfort. Once the collection is accessed a catheter will be placed and left to drain the collection. The catheter will be secured to your skin. A drainage bag will be attached to the catheter. The procedure takes approximately 1 hour.
How Should I Prepare?
There are things you can do to make your experience more comfortable, and many of these will depend on your individual preferences. You might like to keep a list of questions or – as you’re doing now- educate yourself about the procedure.
You will need to get a blood test to check your liver and kidney functions.
Another important part of your preparation will be guided by your doctor:
- Your doctor may ask you to stop taking aspirin, non-steroidal anti-inflammatory drugs (NSAIDS), or blood thinners (such as Coumadin, Warfarin, Plavix, Fragmin) for a time before the procedure.
Some of your preparation will need to be timed to the procedure:
- The day before the procedure (or the Friday before, if you’re scheduled for a Monday procedure), a clinical staff member from the Interventional Radiology Department will call you. The clinical staff member will give you any additional instructions, and will ask if you have any questions.
- In the 8 hours before the procedure, do not drink fluids or eat food.
What Should I Bring?
- Wear comfortable, loose-fitting clothes
- Wear comfortable shoes
- Avoid bringing jewelry or valuables
What Are the Benefits and Risks?
The benefits of Drain Placement include:
- Minimally invasive procedure
- No need for surgical exploration
- Quicker recovery from an infection
Risks you should be aware of include:
- Like any catheterization procedure, there is risk of damage to blood vessels, bruising, bleeding, or infection at the puncture site
Keep in mind that this information is general. Your radiologist is the best source of information about how these risks and benefits may apply to you.