Vascular Perforation and Central Venous Catheters
Central venous catheter access can cause an injury toward surrounding structures if not performed properly. For instance, vascular perforation could happen due to the displacement of the tip of the catheter. Fortunately, however, vascular perforation is an uncommon complication. Only 10% of the perforations take place in central veins
However, when it does occur, it isn’t usually diagnosed until is too late. Therefore, it can be dangerous. That’s why we’d like to take a closer look at this injury and how to detect it in this article.
The types of central access catheters
The design of these catheters makes it so that they extend into the largest central vein near the heart. Catheters vary in size, length, and number of channels, depending on the use for which they were thought of.
Overall, these are the main types of vascular access catheters:
Central peripheral insertion catheter
This is a long catheter that extends into the largest vein near the heart from a vein in an arm or a leg. They’re also referred to as “midline catheters” when placed in such a way that the tip of the catheter stays in a relatively large vein. However, it doesn’t extend into the larger vein.
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The non-tunneled central catheter may have a larger caliber and is meant to be placed in a relatively large vein. This includes a central vein such as the jugular, in the neck, or the femoral vein, in the groin.
This one may have a cuff that stimulates tissue growth that helps keep it in place in the body. There are different sizes and types of tunneled catheters. Its security and easy access are some of the main characteristics of a tunneled catheter.
This is a permanent device consisting of a catheter coupled to a small reservoir.
An ultrasound is commonly used for evaluating and identifying a suitable vein to place a catheter. It allows the intervention radiologist to identify them faster.
The risk of vascular perforation
The diagnostic test of choice when it comes to vascular perforation at the central level is computed tomography.
There are two types of risks directly related to vascular access catheters:
- Those that occur during placement.
- The ones that occur while the device is on the body.
Some of these risks are:
- Infection at the incision shortly after placing the catheter.
- Risk of bleeding.
- Pneumothorax, or an accumulation of air in the chest that can lead to the collapse of a lung. This may occur during the placement of a catheter through a vein in the chest or neck. However, it doesn’t occur with arm veins.
- Rarely, the catheter may go into an artery instead of a vein. If this happens, then the doctor must remove it. Most of the time, the artery will then heal on its own, although it occasionally requires surgical repair.
You may also be interested: Central venous catheters: concept and precautions
Infection due to vascular perforation
When you use a vascular access catheter, two types of late infection can occur:
- A skin infection at the catheter insertion opening.
- An infection in the bloodstream.
When a professional doesn’t properly attach a catheter to the skin, there is a chance it will accidentally come out. If this happens, you should apply pressure to the incision site with a sterile dressing and notify your doctor as soon as possible.
Also, any type of vascular access catheter could clog with a blood clot. You can treat the clot with a blood thinner, but sometimes the physician will have to remove the catheter.
The most obvious sign that there may be a problem with the catheter is a feeling of irregular heartbeat. If you experience this, contact your doctor. However, catheters are overall very safe.