Article Figures & Data
Figures
- Fig 1.
The jaws of the device, now fully open, protrude through a microcatheter tip. We strongly recommend that potential users lead the microcatheter first to the point of obstruction with a soft guidewire, then exchange the guidewire for the ARD, extending it just beyond the tip of the microcatheter around the thrombus.
- Fig 2.
Once the ARD is in position, we gently and smoothly push the catheter forward, slightly closing the jaws of the device over this gelatin-simulated thrombus.
- Fig 3.
A, Frontal angiogram from patient 1. The occlusion of the distal M1 segment is apparent and, as will be seen later on the post-treatment frontal image (F), covers the most lateral lenticulostriate artery.
B, The magnified frontal working view. Images C–E are made at this working projection.
C, We place the microcatheter tip at the point of obstruction.
D, The ARD is extended 3 mm beyond the catheter tip
E, Both microcatheter and device are withdrawn about 2 cm. Injection of contrast agent shows reperfusion of the distal vessels.
F, The pretreatment angiogram (A) can be compared with the posttreatment injection. Because the striate artery was covered, the patient developed a small capsular infarction.
Tables
Patient data
Patient Age Hours since ictus Pre-NIHSS Post-NIHSS Comment 1 79 8 15 3 No thrombolytic used 2 84 4 16 na Though neurologically improved, patient died later of systemic causes 3 50 1 0 0 Another retriever device failed 4 80 2 13 0 Another retriever device failed 5 54 4 14 1 No thrombolytic used 6 76 2.5 25 3 No thrombolytic used Note:—NIHSS indicates National Institutes of Health Stroke Scale; na, not applicable.
