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18 Cards in this Set
- Front
- Back
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two types of AAA?
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infrarenal, and pararenal(involves renal art.)
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most important risk factors of AAA?
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age, gender, race, smoking, and FH
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what common condition has negative risk factor for AAA?
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diabetes
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cut off diameter and other criteria for AAA repair?
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5.5cm, greater than 1cm/yr growth, or symptomatic. Women have lower threshold
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which season sees highest rate of rupture?
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cold winter months
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most common presentation of AAA?
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incidental findings, some my have vague back pain and early satiety. Pulsatile mass usually seen as well
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annual rupture risks at different sizes?
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4-5.5cm: 1%
5.5-6cm: 5-10% 6-7cm: 10-20% |
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screenings done for AAA?
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US screening for all people over 65 with hx. of ever-smoker men and men/women with FH of AAA.
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promising medical tx. of expanding AAA?
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MMP(matrix metalloprotease) inhibitors such as doxycycline
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dissection of the aortic bifurcation and common iliacs must proceed with caution to preserve what?
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parasympathetic nerve plexus, especially in males to avoid ejaculatory dysfunction(impotence and retrograde ejaculation)
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circumfrential dissection of iliac arteries avoid to prevent?
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damage to iliac veins
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two agents administered before cross-clamping?
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heparin(50-60U/kg) and mannitol (12.5mg)
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post-op labs in AAA repair?
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EKG qd, troponin-I for first 24hrs, CBC, BMP, LFT if supraceliac clamp was used, Ca, PT, PTT, LDH
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med used post-op AAA repair?
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beta-blocker to keep HR below 80, and abx for first 24hrs.
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two common complication in AAA repair?
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MI mc followed by renal failure
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most serious GI complication in AAA repair?
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left colon and rectum ischemia
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LE ischemia post AAA repair most often caused by?
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emboli from aneurysm, or thrombosis distal to clamps
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spinal level of aortic bifurcation?
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L4
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