Occlusion Length Is a Crucial Determinant of Efficiency and Complication Rate in Thrombectomy for Acute Ischemic Stroke
AJNR Am J Neuroradiol Gralla et al.
29: 247
Supplemental Online Video
Video companions to published figures including corresponding figure legends.
Files in this Data Supplement:
- Figure 2 Companion (MOV)
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Figure 2: Magnified image of initial 10-mm thrombus; the microcatheter (*) is positioned proximal to the thrombus () with the device unsheathed (upper and lower markers >) distal to the
thrombus (A). B–D, During initial retrieval, the device partially catches the thrombus without significant elongation of the vessel. C and F, Minor dislocation of thrombus and device is visible
at the junction of the lingual and maxillary arteries. E, Elongation of the thrombus in proximity to the balloon catheter (open arrow) illustrates the effect of the additional proximal aspiration.
Total retrieval was achieved.
- Figure 3 Companion (MOV)
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Figure 3: Retrieval of the 10-mm thrombus. A, The distal device (upper and lower markers <) enters the thrombus. B and C, Approximately half of the thrombotic material is carried within
the device; the other half is either pushed sideways to the microcatheter (*) or proximal to the device and is prone to collateral flow (D). E, The supplementary proximal aspiration sucks
the entire thrombus from the device into the balloon catheter (open arrow) to achieve total recanalization.
- Figure 4 Companion (MOV)
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Figure 4: A, During the retrieval attempt of the 40-mm thrombus, the device is unsheathed distal to the thrombus. B, The device (upper and lower markers ) enters the thrombus. C–E, The
thrombotic material is progressively compressed between the device and the microcatheter (*).
- Figure 5 Companion (MOV)
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Figure 5: The 40-mm thrombus () is initially mobilized within the carrying vessel (A) and partially compressed sideways to the microcatheter (B). C, The thrombus enters the balloon catheter
(open arrow); compression of the thrombus causes the distal part to stick at the tip of the balloon catheter. The thrombus is elongated (D) and finally fractures with consequent
thromboembolization (3) into other major vessels (E). A major potion of the thrombus is retrieved to the balloon catheter.
- Figure 6 Companion (MOV)
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Figure 6: A, The device (upper and lower markers <) is unsheathed distal to the 40-mm thrombus. B and C, During the retrieval attempt, the device enters the compressed thrombus, and
the pulling force causes marked elongation of the carrying vessel. The device finally slips through the thrombus catching only a minor fragment (D), which is retrieved together with the
microcatheter (*) to the balloon catheter (open arrow; E).
