What should be optimized before aneurysm surgery?
Hydration, electrolytes, coagulation, and hematocrit.
How long does an aneurysm surgical repair typically take?
About 30–45 minutes.
What is cross-clamping?
Temporary placement of a clamp on a blood vessel to control or stop blood flow during surgery.
What is done during an open aneurysm repair?
1️⃣ Cut into diseased aortic segment 2️⃣ Remove thrombus/plaque 3️⃣ Suture synthetic graft proximal/distal to aneurysm 4️⃣ Wrap native aortic wall around graft for protection.
What is the goal of open aneurysm repair?
Reinforce the aneurysm from the inside.
What major post-op complication can occur if aneurysm is above the renal arteries?
Acute Kidney Injury (AKI) from decreased renal perfusion due to cross-clamping.
What is an endovascular graft procedure (EVAR)?
Minimally invasive placement of a sutureless aortic graft via femoral artery—no cross-clamping required.
What is the goal of EVAR?
Reinforce the aneurysm from the outside and prevent further expansion.
What vessels are used for EVAR?
Femoral arteries.
How is the endovascular graft deployed?
Balloon inflation positions graft against the vessel wall, allowing blood to flow through the graft.
What imaging is done after EVAR?
Angiography—checks for leaks and patency of graft.
What are eligibility requirements for EVAR?
1️⃣ Iliofemoral vessels allow safe graft insertion 2️⃣ Adequate vessel length and width to support graft.
What is an endoleak?
Seepage of blood into old aneurysm sac due to inadequate seal, fabric tear, or leak between segments.
How is an endoleak treated?
Embolization or additional repair.
What other complications can occur after graft repair?
Aneurysm growth, rupture, aortic dissection, renal artery occlusion, bleeding, hematoma, infection.
Why is ongoing imaging needed after graft repair?
To monitor aneurysm and graft stability and detect leaks or expansion.
What is intraabdominal hypertension (IAH)?
Increased intraabdominal pressure impairing organ perfusion.
What is abdominal compartment syndrome (ACS)?
Severe IAH causing multisystem organ failure due to impaired perfusion.
What are treatments for IAH/ACS?
Open decompression, percutaneous drainage, intubation/ventilation, gastric decompression, pain management, cautious fluid resuscitation, temporary hemofiltration.
What are the three main goals for patients undergoing aortic surgery?
1️⃣ Normal tissue perfusion 2️⃣ Intact motor/sensory function 3️⃣ No surgical complications (thrombosis, infection, rupture, endoleak).
What are health promotion strategies for aneurysm patients?
BP control, smoking cessation, healthy weight, normal lipid levels, CVD risk reduction.
How long are patients typically monitored in the ICU post-op?
24–48 hours.
What lines/tubes are used post-op for monitoring?
Arterial line (BP), NG tube, ECG, pulse oximetry.
Why is an arterial line used post-op?
To continuously monitor BP for hypovolemia or sepsis.