An aneurysm is a dilation of an artery in the body to at least 1.5 times larger than its normal size. Most aneurysms occur in the aorta, usually below the level of the kidney arteries. A peripheral aneurysm is any aneurysm that occurs in an artery outside of the chest and abdomen. The most common place for peripheral aneurysms to occur is in the popliteal artery which is located behind the knees or in the brain.
Popliteal aneurysms are commonly seen in patients who have concurrent abdominal aortic aneurysms.

The risk factors for popliteal aneurysms include:

Popliteal aneurysms tend to behave differently to aortic aneurysms. As an abdominal aortic aneurysm will get larger and then burst, a popliteal aneurysm will get larger and suddenly block off. This will then block the blood supply to the lower leg which can lead to loss of the leg.

Management

Peripheral aneurysms are usually identified incidentally whilst scanning for other conditions. Once discovered a peripheral aneurysm should be monitored until it reaches its treatment threshold (this varies depending on the aneurysms location). The options for treating a peripheral aneurysm include:

Open bypass surgery

Once an aneurysm is discovered and reaches its treatment threshold a durable treatment method is a bypass graft usually performed using your own vein. Once the bypass has been performed around the aneurysm, the aneurysmal blood vessel is ligated before and after the aneurysm to stop it growing.

Interposition graft

Another option for treating peripheral aneurysm in is an operation called an interposition graft. In this procedure the aneurysm itself is opened and a short segment of either prosthetic graft or your own vein is sewn in to replace the diseased segment of the artery. This operation, if your anatomy if suitable has the advantage of using a shorter graft which is the most durable option.

Stenting

Stenting a peripheral aneurysm is commonly reserved for those patients not suitable for open surgery. A metal stent that is wrapped in fabric is deployed into the artery to reline the aneurysmal part of the vessel. The durability of stents is often less than open surgery and they require very close monitoring to ensure long-term patency.

Initial consultation

During your initial consultation with Dr. McGlade he will take a thorough history and examination in regards to your peripheral aneurysm. He will also likely need to organise further screening tests to rule out any other aneurysms in the body and discuss with you the best treatment methods available. This may include monitoring, surgery or stenting. Dr McGlade will also implement good medical management for your systemic arterial disease which commonly involves aspirin, cholesterol lowering medication, and BP medication.
Once all of your investigations are returned Dr McGlade who is an expert in both open and endovascular surgery, he will tailor a treatment plan to provide the most optimal outcome for your condition.