An aneurysm is a dangerous enlargement of an artery that can rupture and cause life-threatening internal bleeding. While minimally invasive treatments such as Endovascular Aneurysm Repair (EVAR) are effective for many patients, some aneurysms require Open Aneurysm Repair (OAR) for long-term success. This traditional surgical approach allows vascular surgeons to replace the damaged artery with a durable graft, preventing rupture and restoring normal blood flow.
At Vascular Surgery Associates, our board-certified vascular surgeons in Los Angeles and Santa Monica specialize in complex aneurysm repair, ensuring the highest level of care and surgical precision for patients requiring open aneurysm surgery.
What is Open Aneurysm Repair?
Open Aneurysm Repair (OAR) is a surgical procedure used to treat large or complex aneurysms that cannot be safely managed with minimally invasive methods. During the procedure, the surgeon:
- Makes an incision in the abdomen or chest to access the affected artery
- Removes the weakened aneurysmal section of the artery
- Replaces it with a durable synthetic graft that functions like a normal artery
- Closes the incision and monitors recovery to ensure the graft remains functional
Open aneurysm repair provides a permanent solution for aneurysm treatment, significantly reducing the risk of rupture and improving long-term vascular health.
When is Open Aneurysm Repair Necessary?
Although endovascular aneurysm repair (EVAR) is a preferred option for many patients, open repair is recommended when:
- The aneurysm is too large or complex for a stent-based repair
- There is a high risk of aneurysm rupture based on imaging and patient health
- The aneurysm extends into critical arteries that require precise reconstruction
- The patient has a history of failed endovascular procedures
- There is evidence of an infected aneurysm that requires removal
At Vascular Surgery Associates, we use advanced imaging techniques to assess aneurysm severity and determine the best surgical approach for each patient.
Advantages of Choosing Open Aneurysm Repair
While open surgery is more invasive than endovascular treatments, it offers unique advantages:
- Permanent repair for large or complex aneurysms
- Durable synthetic grafts that do not require long-term monitoring like stent grafts
- No risk of stent-related complications, such as migration or endoleaks
- A long-term solution for patients ineligible for minimally invasive treatments
With the expertise of our top vascular surgeons in Los Angeles and Santa Monica, patients receive comprehensive surgical care to ensure the best possible outcome.
What to Expect Before, During, and After Surgery
Before Surgery
- Comprehensive preoperative evaluation, including CT or MRI imaging
- Medication adjustments, such as stopping blood thinners if necessary
- Lifestyle recommendations, including smoking cessation and dietary modifications
During Surgery
- General anesthesia is administered to ensure patient comfort
- A large incision is made in the abdomen or chest to access the aneurysm
- The damaged artery is removed and replaced with a synthetic graft
- The incision is closed, and the patient is transferred to a recovery unit
After Surgery
- Hospital stay of 5-10 days for monitoring and pain management
- Gradual return to normal activities within 4-6 weeks
- Regular follow-up imaging to ensure graft function and overall vascular health
Patients will need to adopt heart-healthy lifestyle changes to prevent future vascular issues.
Frequently Asked Questions About Open Aneurysm Repair
The graft used in OAR is permanent and does not require long-term monitoring like endovascular stents.
While it is a major surgery, it is considered the gold standard for treating large or complex aneurysms when performed by experienced vascular surgeons.
Most patients recover within 4-6 weeks, though full healing can take several months.
Risks include infection, bleeding, blood clots, and heart complications, though success rates are high when performed at specialized vascular centers.
Yes, most insurance plans cover the procedure if it is medically necessary to prevent aneurysm rupture.

Dedicated to Excellence in Vascular Care Since 1963
Vascular Surgery Associates (VSA) has established itself as a cornerstone of vascular health in Southern California, combining decades of experience with cutting-edge treatment methods. Founded by visionary surgeons in 1963, our practice has grown from pioneering beginnings into one of the busiest and most respected vascular surgery groups in the Western United States.
Expert Open Aneurysm Repair in Los Angeles & Santa Monica | Schedule a Consultation Today
If you have been diagnosed with a large or complex aneurysm, open aneurysm repair may be the safest and most effective treatment option. At Vascular Surgery Associates, our highly experienced vascular surgeons in Los Angeles and Santa Monica provide expert surgical care to restore circulation and prevent life-threatening complications.
Contact us today to schedule a consultation and learn more about advanced aneurysm treatment options.