{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T04:39:28Z","timestamp":1782275968690,"version":"3.54.5"},"reference-count":8,"publisher":"Scientific Scholar","content-domain":{"domain":["surgicalneurologyint.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec id=\"st1\">\n<jats:title>Background: <\/jats:title>\n<jats:p>Endovascular treatment for acute tandem occlusion (ATO) of the combination of an ipsilateral extracranial internal carotid artery (ICA) steno-occlusive lesion with concurrent intracranial artery occlusion is challenging. Whether extracranial lesions, especially in cases of the left common carotid artery (LCCA) origin steno-occlusive lesions, should be treated after recanalization of an occluded intracranial artery by mechanical thrombectomy simultaneously in the same session has not been established. We report two cases of successful ATO with LCCA origin steno-occlusive lesions treated by staged retrograde transcarotid LCCA stenting followed emergent mechanical thrombectomy in two sessions because of the tortuous aortic arch.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st2\">\n<jats:title>Case Description: <\/jats:title>\n<jats:p>A 61-year-old man with left ICA occlusion and an 82-year-old woman with left middle cerebral artery occlusion underwent emergent mechanical thrombectomy for ATO with LCCA origin stenoocclusive lesions. We achieved recanalization of large vessels, but severe stenosis of LCCAs remained. Because of the tortuous aortic arch, we decided to treat LCCA origin steno-occlusive lesions with staged stenting in the other session followed emergent mechanical thrombectomy. Postoperative courses were uneventful, and their symptoms improved. We performed stenting using a transcarotid approach through CCA cut down for LCCA steno-occlusive lesions without any complications.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st3\">\n<jats:title>Conclusion: <\/jats:title>\n<jats:p>The staged strategy leaving LCCA origin stenosis seems to offer a better strategy than the simultaneous strategy for ATO with LCCA origin steno-occlusive lesions. A retrograde transcarotid approach through CCA cut down is recommended for LCCA stenting.<\/jats:p>\n<\/jats:sec>","DOI":"10.25259\/sni_572_2021","type":"journal-article","created":{"date-parts":[[2021,7,19]],"date-time":"2021-07-19T13:16:58Z","timestamp":1626700618000},"page":"364","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Staged strategy using a transcarotid approach for acute tandem occlusions with left common carotid artery origin steno-occlusive lesion"],"prefix":"10.25259","volume":"12","author":[{"given":"Ryosuke","family":"Maeoka","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Ohnishi Neurological Centre, Akashi, Hyogo, Japan"},{"name":"Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ichiro","family":"Nakagawa","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroyuki","family":"Ohnishi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Ohnishi Neurological Centre, Akashi, Hyogo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hideyuki","family":"Ohnishi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Ohnishi Neurological Centre, Akashi, Hyogo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"10894","published-online":{"date-parts":[[2021,7,19]]},"reference":[{"key":"10.25259\/SNI_572_2021\/ref-1","doi-asserted-by":"crossref","first-page":"1999","DOI":"10.1161\/hc4201.099224","article-title":"Effect of the distal-balloon protection system on microembolization during carotid 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