Diseases of the Aorta Flashcards
An anatomic remnant of right aortic aorta
Kommerell’s Diverticulum
Occurs near the insertion of the LIGAMENTUM ARTERIOSUM adjacent to the left subclavian artery
Coarctation of the Aorta
The more dominant factor in AAA or DESCENDING THORACIC ANEURYSM
Atherosclerosis
Associated with AAA
Hypertension
Usually a HARBINGER OF RUPTURE and represents a medical emergency
Aneurysmal pain
MC location of aortic aneurysm
Infrarenal aorta
Defined as a pathologic focal dilation of the aorta that > 30 mm or 1.5 times the adjacent diameter of the normal aorta
Abdominal Aortic Aneurysm
MC cause of AAA
degenerative process in the aortic wall
Risk factors associated with AAA ↑ in size
HPN
COPD
Smoking
SCREENING MODALITY OF CHOICE in AAA with high accuracy and sensitivity with a specificity of 100%
Abdominal Ultrasound
The GOLD STANDARD for determination of anatomic eligibility for endovascular repair
Abdominal CT
Indicated to ↓ the risk of cardiovascular events related to atherosclerosis
Statins
Anatomic criteria for endovascular AAA repair
INFRARENAL NECK: length 15 mm or greater, diameter 30 mm or less, and anterior angulation less than 60 degrees
LANDING ZONE: ability to fixate distally proximal to at least one internal iliac artery
COMMON FEMORAL AND EXTERNAL ILIAC ARTERY DIAMETERS—at least 7 mm
RELATIVE CONTRAINDICATIONS: severely calcified iliac arteries and severely tortuous iliac arteries
Indicated for abdominal aortic aneurysms of any size that are expanding rapidly or are associated with symptoms
Operative repair of the aneurysm with insertion of a prosthetic graft
OR
endovascular placement of an aortic stent graft
An alternative approach to treat ruptured aneurysms and may be associated with a lower mortality rate
Endovascular repair with stent placement