A ruptured internal carotid artery blood blister-like aneurysm with rebleeding after single-layer neck-bridging stenting and complete obliteration after double-layer stenting: A case report.
- 1Department of Neurosurgery, Yokohama Minami Kyosai Hospital, Kanagawa, Japan.
- 2Department of Neurosurgery, Graduate School of Medicine, Yokohama City University, Kanagawa, Japan.
Abstract
Background
Blood blister-like aneurysms (BBAs) are difficult to treat surgically, and an established treatment strategy is yet to be determined. Treatment options are limited in cases where direct surgery is difficult, and endosaccular embolization is considered infeasible.Case description
A 31-year-old man presented with subarachnoid hemorrhage due to rupture of an internal carotid artery BBA. Treatment in the acute phase was considered; however, because both direct surgery and endosaccular embolization were difficult, a single low-profile visualized intraluminal support (LVIS) device was deployed while the patient was receiving dual antiplatelet therapy. Approximately 2 weeks later, the aneurysmal component enlarged, rebleeding occurred, and a second stent was deployed. Disappearance of the aneurysm was confirmed 7 months later.Conclusion
For a ruptured internal carotid artery BBA, a single-layer LVIS stent was placed as initial treatment, followed by placement of a second layer during the subacute phase. Although no ischemic complications occurred, rebleeding developed. Since a single-layer placement may not prevent rebleeding, close follow-up is necessary after treatment, and prompt intervention is required if any changes occur in the aneurysmal segment.
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BibTeX
@article{igarashi2026ruptured,
title = {{A ruptured internal carotid artery blood blister-like aneurysm with rebleeding after single-layer neck-bridging stenting and complete obliteration after double-layer stenting: A case report.}},
author = {Yuki Igarashi and Hiroshi Manaka and Mutsumi Takadera and Genki Honda},
journal = {Surgical neurology international},
year = {2026},
month = oct,
doi = {10.25259/sni_1037_2026},
url = {https://europepmc.org/article/MED/42974207},
note = {CC BY-NC-SA},
}
RIS
TY - JOUR
TI - A ruptured internal carotid artery blood blister-like aneurysm with rebleeding after single-layer neck-bridging stenting and complete obliteration after double-layer stenting: A case report.
AU - Yuki Igarashi
AU - Hiroshi Manaka
AU - Mutsumi Takadera
AU - Genki Honda
PY - 2026
DA - 2026/10/16
JO - Surgical neurology international
DO - 10.25259/sni_1037_2026
UR - https://europepmc.org/article/MED/42974207
AB - Background Blood blister-like aneurysms (BBAs) are difficult to treat surgically, and an established treatment strategy is yet to be determined. Treatment options are limited in cases where direct surgery is difficult, and endosaccular embolization is considered infeasible.Case description A 31-year-old man presented with subarachnoid hemorrhage due to rupture of an internal carotid artery BBA. Treatment in the acute phase was considered; however, because both direct surgery and endosaccular embolization were difficult, a single low-profile visualized intraluminal support (LVIS) device was deployed while the patient was receiving dual antiplatelet therapy. Approximately 2 weeks later, the aneurysmal component enlarged, rebleeding occurred, and a second stent was deployed. Disappearance of the aneurysm was confirmed 7 months later.Conclusion For a ruptured internal carotid artery BBA, a single-layer LVIS stent was placed as initial treatment, followed by placement of a second layer during the subacute phase. Although no ischemic complications occurred, rebleeding developed. Since a single-layer placement may not prevent rebleeding, close follow-up is necessary after treatment, and prompt intervention is required if any changes occur in the aneurysmal segment.
SN - 2229-5097
SN - 2152-7806
ER -