Page 45 - Virtual Vascular Vol 4
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IMAGES
A MICROPUNCTURE SET is used for percutaneous vascular access, using a
small-bore needle, usually 21 gauge and a 0.018″ guide wire. A microcatheter, consisting of a
dilator and introducer sheath, generally 4 or 5 French is then introduced. The main advantage An isolated DISSECTION FLAP in the SMA is seen as an incidental finding on CT scan.
of the micropuncture technique is to reduce access site bleeding complications (such as retro- With CT imaging now being used liberally, we are seeing more of this kind of findings. If the
peritoneal bleeding in femoral puncture), particularly after multiple puncture attempts. dissection is not compromising flow (good true and false lumen perfusion) and the patient is
asymptomatic no treatment is required. The natural history is unknown but probably benign,
and the incidence of future aneurysm formation is very low.
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