Acta neurochirurgica · 2015
Emergent cervical surgical embolectomy for extracranial internal carotid artery occlusion.
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Kiyofuji Satoshi, Inoue Tomohiro, Tamura Akira, Saito Isamu
Аннотация
BACKGROUND: Acute extracranial internal carotid artery (ICA) occlusion by a huge cardiogenic embolus is rare, but can be catastrophic.
METHODS: Seven patients with acute ischemic stroke due to embolic occlusion of extracranial ICA who underwent emergent cervical surgical embolectomy were retrospectively reviewed. Diagnosis was made in six patients with magnetic resonance imaging (MRI) with optional digital subtraction angiography (DSA), while computed tomography (CT) and DSA were used in one patient with an implanted pacemaker. Clinical outcomes, including recanalization rate, recanalization time, complications, modified Rankin scale (mRS) at 3 months, and National Institute of Health Stroke Scale (NIHSS) score improvement at 1 month were evaluated.
RESULTS: Complete recanalization was obtained in seven patients (100 %). Median recanalization time from symptom onset and from start of surgery was 402 and 40 min, respectively. All seven patients showed severe left ventricular hypertrophy (LVH) according to an increased cardiothoracic ratio (CTR) ≥50 %. Complications included recurrence of cardioembolic stroke with the right middle cerebral artery occlusion, minimal expansion of infarction, and aggravation of heart failure, each in one patient, respectively. Four (57.1 %) patients had a history or postoperative recurrence of cardioembolic stroke. Median NIHSS at 1 month was 2 (range, 0-30). Median mRS at 3 months was 2 (range, 0-5). Five patients (71.4 %) had a favorable outcome (mRS2).
CONCLUSIONS: Cervical surgical embolectomy for acute extracranial ICA occlusion resulted in a high complete recanalization rate with an acceptable safety profile. A possible association between severe cardiac illness and huge embolus occluding proximal large artery was suggested.
METHODS: Seven patients with acute ischemic stroke due to embolic occlusion of extracranial ICA who underwent emergent cervical surgical embolectomy were retrospectively reviewed. Diagnosis was made in six patients with magnetic resonance imaging (MRI) with optional digital subtraction angiography (DSA), while computed tomography (CT) and DSA were used in one patient with an implanted pacemaker. Clinical outcomes, including recanalization rate, recanalization time, complications, modified Rankin scale (mRS) at 3 months, and National Institute of Health Stroke Scale (NIHSS) score improvement at 1 month were evaluated.
RESULTS: Complete recanalization was obtained in seven patients (100 %). Median recanalization time from symptom onset and from start of surgery was 402 and 40 min, respectively. All seven patients showed severe left ventricular hypertrophy (LVH) according to an increased cardiothoracic ratio (CTR) ≥50 %. Complications included recurrence of cardioembolic stroke with the right middle cerebral artery occlusion, minimal expansion of infarction, and aggravation of heart failure, each in one patient, respectively. Four (57.1 %) patients had a history or postoperative recurrence of cardioembolic stroke. Median NIHSS at 1 month was 2 (range, 0-30). Median mRS at 3 months was 2 (range, 0-5). Five patients (71.4 %) had a favorable outcome (mRS2).
CONCLUSIONS: Cervical surgical embolectomy for acute extracranial ICA occlusion resulted in a high complete recanalization rate with an acceptable safety profile. A possible association between severe cardiac illness and huge embolus occluding proximal large artery was suggested.