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Intraprocedural plaque protrusion resulting in cerebral embolism during carotid angioplasty with stenting

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Abstract

An 82-year-old man with an asymptomatic left high-grade carotid stenosis was treated with carotid artery stenting (CAS) under distal protection. The procedure consisted with predilation with a 5 × 40 mm percutaneous transluminal angioplasty (PTA) balloon, deployment of a 10 × 20 mm self-expandable stent, post-dilation with a 7 × 20 mm PTA balloon, and aspiration of debris with 60 ml of blood. The cervical carotid angiogram immediately after deflation of the distal blocking balloon demonstrated a small in-stent filling defect of the contrast medium that protruded from the anterior wall of the carotid artery. The following cranial carotid angiogram showed abrupt occlusion of the left middle cerebral artery (MCA). Because the in-stent lesion had vanished in the repeat study after recognition of this embolic event, it was suggested that an embolus had been liberated from the in-stent lesion, reaching the left MCA and obliterating it. In this case, the embolus was speculated to originate in the ruptured plaque, which protruded into the stent through the cells of the device and became liberated into the bloodstream. Attention should be paid so as not to overlook any plaque protrusion, which may be seen subsequently as a cerebral embolism on the angiogram obtained immediately after CAS.

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Authors and Affiliations

  1. Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, 818-8502, Japan

    Hiroshi Aikawa, Tomonobu Kodama, Kouhei Nii, Masanori Tsutsumi, Masanari Onizuka, Minoru Iko, Shuko Matsubara, Housei Etou, Kimiya Sakamoto & Kiyoshi Kazekawa

Authors
  1. Hiroshi Aikawa
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  2. Tomonobu Kodama
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  3. Kouhei Nii
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  4. Masanori Tsutsumi
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  5. Masanari Onizuka
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  6. Minoru Iko
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  7. Shuko Matsubara
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  8. Housei Etou
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  9. Kimiya Sakamoto
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  10. Kiyoshi Kazekawa
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Corresponding author

Correspondence to Kiyoshi Kazekawa.

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Aikawa, H., Kodama, T., Nii, K. et al. Intraprocedural plaque protrusion resulting in cerebral embolism during carotid angioplasty with stenting. Radiat Med 26, 318–323 (2008). https://doi.org/10.1007/s11604-008-0231-1

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  • DOI: https://doi.org/10.1007/s11604-008-0231-1

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