Empowering Aneurysm Warriors

coil embolization

A Step-by-Step Guide to the Coil Embolization Technique for Aneurysm

Choosing the right patient for coil embolization starts with looking at the shape of the aneurysm and the patient’s health. You’ll need specific imaging, like DSA, to help you through the whole process. 

After getting access to the blood vessels, use roadmap guidance to guide the microcatheter to the aneurysm. Then, place coils one at a time until the blockage is strong enough. Keep an eye out for problems before and after the treatment, and stick to a strict follow-up schedule. 

How to Choose Patients for Coil Embolization of Brain Aneurysms

When choosing candidates for coil embolization, you’ll need to look at a number of important aspects that affect the effectiveness of the procedure and the patient’s health. First, use CTA, MRA, and digital subtraction angiography to get a good look at the shape of the aneurysm. 

People who are good candidates usually have saccular aneurysms with narrow necks and good dome-to-neck ratios.

When planning this interventional radiology technique, think about things that are special to the patient, like their age, any health problems, and whether they are taking anticoagulants. 

Individuals with substantial medical comorbidities may find coil embolization advantageous due to its minimally invasive characteristics in contrast to surgical clipping. 

The need for patient monitoring after the procedure should also be taken into account when making a choice. When it comes to choosing patients for wide-necked, fusiform, or complex aneurysms, it may be necessary to use additional methods such as stent-assisted coiling.

Coil Embolization of Brain Aneurysms

Necessary Tools and Imaging for Safe Coil Embolization

Three important imaging technologies are required to perform coil embolization procedures successfully. These technologies provide the basis for safe aneurysm therapy. 

Digital subtraction angiography (DSA) gives a clear picture of blood vessels, which is very important for accurately guiding the catheter during this endovascular operation. Fluoroscopy in real time lets you keep an eye on the position of the microcatheter and the deployment of the coil during the embolization process.

3D rotational angiography is an important part of making sure that procedures are safe. It gives a thorough picture of the aneurysm and the parent vessels. This imaging advice for embolization helps you figure out the size of the aneurysm, the width of the neck, and your coiling technique. 

To properly traverse and treat different types of aneurysms, you’ll also require specialized microcatheters (0.014–0.021 inch), microwires, guiding catheters, and detachable coils in varying sizes and shapes.

Step-by-Step Guide to Using the Microcatheter and Putting in Coils

The precise navigation and deployment phase is the most technical part of coil embolization treatment. After figuring out how to get to the blood vessels using the femoral or radial pathways, you’ll gently move the microcatheter to the neck of the aneurysm utilizing a roadmap.

Before starting the catheterization for aneurysm treatment, place the tip of the catheter just inside the aneurysm sac. Put your first microcoil, which is usually a framing coil, into the sac and let it take on the shape you want it to. Use the right coil deployment strategy to keep the coils from moving or breaking through. Choose each coil to fill in the gaps.

After you’ve packed enough, do a control angiography to make sure the blockage is still there. After an embolization, full care involves managing heparin, keeping an eye on the patient’s neurological status, and scheduling follow-up imaging to check for long-term stability.

Step-by-Step Guide to Using the Microcatheter

Handling Problems During and After Coil Embolization

Even with careful preparation and execution, coil embolization operations might have problems that need to be recognized and dealt with right away. During the procedure, you will need to keep an eye out for thromboembolic events, coil migration, or aneurysm rupture.

If coil protrusion happens, you should change the type of embolization device you are using right away. You may need to get coils that are in the wrong place or put in a stent to stop migration. When bleeding problems occur, clinicians must quickly control blood pressure and consider using protamine to reverse heparinization.

After endovascular treatment for an aneurysm, follow the usual recovery steps, which include neurological tests every hour at first and then less often as stability is confirmed. Managing complications goes beyond the intervention suite. Make sure patients know about problems that show up later and need to be reported right away during their recovery.

Follow-Up Protocols to Stop and Find Aneurysm Recurrence

Long-term success of coil embolization depends on strict follow-up procedures that look for the return of the aneurysm or the reopening of the blood vessel. 

You will need to set up MRA or DSA imaging for patients 3 to 6 months after the procedure, then once a year for 2 to 3 years, and then every so often after that. These follow-ups check for coil compaction and find early recanalization before the coil breaks.

When looking at the images, examine the stability of the microcoil deployment technique by looking for coil migration, compaction, or contrast filling inside the aneurysm sac. If the problem comes again, you can arrange other neurointerventional procedures, such as more coiling or putting in a stent. 

It is important to teach patients about sticking to follow-up appointments and to keep an eye out for new neurological symptoms that could mean consequences that need prompt treatment.

About the Author

Picture of Rich Devman

Rich Devman

In the year 2020, I encountered one of the most significant challenges of my life when I was diagnosed with an ascending aortic aneurysm. This condition, considered one of the most severe and dangerous forms of cardiovascular disease, required immediate surgical intervention. The ascending aorta, which is the segment of the aorta that rises from the heart and delivers oxygen-rich blood to the body, had developed an abnormal bulge in its wall, known as an aneurysm. Left untreated, such an aneurysm could lead to life-threatening conditions such as aortic dissection or even aortic rupture. In response to this urgent health crisis, I underwent emergency surgery, a procedure aimed to repair the dilated section of my aorta, thereby preventing a potential disaster. This type of surgery often involves a procedure known as an open chest aneurysm repair, where the weakened part of the aorta is replaced with a synthetic tube, a demanding operation that calls for extensive expertise and precision from the surgical team. Surviving such a major health scare deeply impacted my life, leading me to channel my experience into something constructive and helpful for others going through the same situation. As a result, I took it upon myself to establish this website and a corresponding Facebook group. These platforms are designed to provide support, encouragement, and a sense of community for those grappling with the reality of an ascending aortic aneurysm. I often refer to those of us who have had our aneurysms discovered and treated before a catastrophic event as "the lucky ones." The unfortunate reality is that aortic aneurysms are often termed "silent killers" due to their propensity to remain asymptomatic until they rupture or dissect, at which point it's often too late for intervention. Thus, we, who were diagnosed and treated timely, represent the fortunate minority, having had our aneurysms detected before the worst could happen. Through this website and our Facebook group, I aim to raise awareness, provide critical information about the condition, share personal experiences, and, above all, offer a comforting hand to those who are facing this daunting journey. Together, we can turn our brushes with mortality into a beacon of hope for others. Also, I make websites look pretty and rank them on search engines, raise a super amazing kid, and I have a beautiful wife.