Pestana Vascular Surgery Flashcards
Patient comes in complaining of sudden onset of visual changes and dizziness and arm claudication when he is bench pressing
subclavian steal syndrome - arteriosclerotic plaque at the origin of the subclavian (right before the vertebral artery branches off) causes reversal of flow in the ipsilateral vertebral artery to supply the exercising arm -> results in posterior neurologic sx (visual ∆, equilibrium problems) + arm claudication since there is insufficient blood flow to the arm
What condition predisposes one to the subclavian steal syndrome?
arteriosclerotic plaque at the origin of the subclavian (right before the vertebral artery branches off)
Diagnosis and treatment of subclavian steal syndrome?
diagnosis: duplex scanning
treatment: bypass surgery
asymptomatic, pulsatile abdominal mass in a 65 yo M
AAA
management of an asymptomatic, pulsatile abdominal mass in a 65 yo M <4 cm
AAA - observe - chances of rupture is almost 0
management of an asymptomatic, pulsatile abdominal mass in a 65 yo M >5 cm
AAA - elective repair (endovascular stent) because chances of rupture is very high
management of an asymptomatic, pulsatile abdominal mass in a 65 yo M that has increased from 1cm -> 3cm in the last year
AAA - elective repair (endovascular stent) because chances of rupture is very high
management of a tender, pulsatile abdominal mass in a 65 yo M
AAA - immediate repair indicated since the pain indicates an imminent rupture
management a patient with excruciating back pain in a patient with a known pulsatile abdominal mass
Leaky AAA resulting in a retroperitoneal hematoma is an indication that a blowout into the peritoneum is imminent - emergency surgery
management of intermittent claudication that does not interfere with patient’s lifestyle
management of intermittent claudication that is disabling
not disabling: no workup indicated
disabling: surgery - relieves disabling symptoms and/or saves the extremity from impending necrosis
long-term management of patients with intermittent claudication 3
1) stop smoking
2) regular exercise program
3) cilostazol
w/u of patient is disabling intermittent claudication 2
1) doppler to look for pressure gradient; if there is a significant gradient, then proceed to
2) CTA or MRA to identify specific stenotic or obstructed areas and to look for good distal vessels to which a graft can be hooked
management of a patient with intermittent claudication that is found to have a short stenotic segment
angioplasty + stenting
management of a patient with intermittent claudication that is found to have extensive disease
bypass grafting, sequential stents, or longer stents
managmenet of symptomatic atherosclerotic occlusive disease at the aortobifemoral junction
bypass with synthetic grafts