Efficacy of Solitaire AB stent-release angioplasty in acute middle cerebral artery atherosclerosis obliterative cerebral infarction

Figure 1 National Institutes of Health Stroke Scale scores immediately after surgery (7. 5 ± 5.6), at 24 h (5.5 ± 5.6), and at 1 wk (3.6 ± 6.7) compared with the pre-operative National Institutes of Health Stroke Scale score (15.9 ± 4.4), were significantly different (P < 0.01). NIHSS: National Institutes of Health Stroke Scale.

Figure 2 A 54-year-old male was admitted to the hospital with numbness and weakness in his left limb for 1 h. His admission National Institutes of Health Stroke Scale (NIHSS) score was 14 points, rt-PA intravenous thrombolysis after bridging endovascular treatment was performed, and immediately after surgery his NIHSS score was 2 points. The modified Rankin scale score was 0 points after 3 mo. A: Digital subtraction angiography lateral view shows proximal occlusion of the right middle cerebral artery; B: Left internal carotid artery angiography shows that the left anterior middle cerebral artery blood circulation was unobstructed; C: Micro-catheter angiography confirmed that the far end of the right middle cerebral artery was unobstructed; D: The Solitaire AB stent (4 mm × 20 mm) was unfolded (before being released) and the distal blood flow modified thrombolysis in cerebral infarction was above 2b/3; E: The distal blood flow was maintained after 15 min. The Solitaire AB stent was released; F: Immediately after surgery, there was no bleeding observed on head computed tomography (CT), and the shape of the stent was visible; G: Three days postoperatively, CT angiography (CTA) showed that the Solitaire AB stent was in good shape and the distal blood flow was smooth; H: The 3-month re-examination by CTA showed that the stent was in good shape and the distal blood flow was smooth.

Figure 3 A 53-year-old male was admitted to the hospital with numbness of the right limb for 5. 5 h, aggravation, and weakness for 1.5 h. The National Institutes of Health Stroke Scale (NIHSS) score was 10 points. The patient exceeded the intravenous thrombolysis time window and received emergency endovascular treatment. The NIHSS score immediately after the operation was 2 points. The modified Rankin scale score was 0 points after 3 mo. A: Left internal carotid angiography showed that the proximal left middle cerebral artery was occluded, part of the pial branch was compensated, and the micro-guide wire passed the stenosis; B: The Solitaire AB stent was unfolded (before being released) and the distal blood flow modified thrombolysis in cerebral infarction level was 2b/3. After 15 min observation, the stent was released; C: Computed tomography angiography (CTA) 3 d postoperatively showed that the Solitaire AB stent (4 mm × 20 mm) was in good shape and the distal blood flow was smooth; D: CTA 3 mo after surgery showed that the stent was in good shape and the distal blood flow was smooth.