|Year : 2020 | Volume
| Issue : 2 | Page : 428-430
Acute coils migration causing significant m3 branch occlusion: A case report of rescue surgery with superficial temporal artery-middle cerebral artery bypass
Riccardo Stanzani1, Yasuhiro Yamada2, Tukasa Kawase2, Gowtham Devareddy2, Chandratej Kadam2, Firuz Shukurov2, Chavan Vaibhav3, Yoko Kato2
1 Department of Neurosurgery, Neurosurgery Unit AOU Policlinico di Modena – OCSAE Modena Hospital, Modena; Department of Neurosurgery, Neurosurgical Residency Program, University of Padua, Padua, Italy; Department of Neurosurgery, Bantane Hospital, Fujita Health University, Nagoya, Japan
2 Department of Neurosurgery, Bantane Hospital, Fujita Health University, Nagoya, Japan
3 Department of Neurosurgery, Bantane Hospital, Fujita Health University, Nagoya, Japan; Department of Neurosurgery, Krishna Institute of Medical Sciences, Karad, Maharashtra, India
|Date of Submission||02-Dec-2019|
|Date of Acceptance||09-Apr-2020|
|Date of Web Publication||29-May-2020|
Dr. Riccardo Stanzani
Department of Neurosurgery, Neurosurgery Unit AOU Policlinico di Modena – OCSAE Modena Hospital, Modena; Department of Neurosurgery, Neurosurgical Residency Program, University of Padua, Padua, Italy; Department of Neurosurgery, Bantane Hospital, Fujita Health University, Nagoya, Japan
Source of Support: None, Conflict of Interest: None
We describe an uncommon case of acute coils migration with significant occlusion of M3 branch and our management of this complication. Ballon-assisted coil placement was performed for an unruptured intracavernous internal carotid artery aneurysm in a 62-year-old woman. After coil placement and balloon deflection, we observed coils migration with significant occlusion of M3 branch. After early clinical deterioration without other neurological symptoms, we decided to perform superficial temporal artery-middle cerebral artery (STA-MCA) bypass to ensure blood flow distal to the occlusion. The patient was discharged without neurological deficit. To the best of our knowledge, this is the first case report about STA-MCA bypass to treat acute coils migration. This technique could represent a successful rescue therapy in case of acute coils migration that cannot be retrieved by endovascular tools or in case where distal and deep location of migrated coils controindicate surgical removal.
Keywords: Balloon-assisted coiling, coil migration, intracranial aneurysm, STA-MCA bypass, vessel occlusion
|How to cite this article:|
Stanzani R, Yamada Y, Kawase T, Devareddy G, Kadam C, Shukurov F, Vaibhav C, Kato Y. Acute coils migration causing significant m3 branch occlusion: A case report of rescue surgery with superficial temporal artery-middle cerebral artery bypass. Asian J Neurosurg 2020;15:428-30
|How to cite this URL:|
Stanzani R, Yamada Y, Kawase T, Devareddy G, Kadam C, Shukurov F, Vaibhav C, Kato Y. Acute coils migration causing significant m3 branch occlusion: A case report of rescue surgery with superficial temporal artery-middle cerebral artery bypass. Asian J Neurosurg [serial online] 2020 [cited 2021 Jul 30];15:428-30. Available from: https://www.asianjns.org/text.asp?2020/15/2/428/285341
| Introduction|| |
Endovascular coiling has become the mainstay of treatment for both ruptured and unruptured aneurysms in the majority of centers worldwide., Advances in endovascular techniques, including balloons-assisted coiling procedure, have been applied in intracranial aneurysms. Coil migration is a potential rare complication of this kind of procedure and may have catastrophic consequences if not adequately managed. We present here a rare complication of acute coil migration after balloon-assisted coil embolization.
| Case Report|| |
A 62-year-old woman, with maternal positive history for subarachnoid hemorrhage, presented with incidental left intracavernous internal carotid artery (ICA). During computed tomography angiography (CTA) follow-up, the aneurysm slowly increased (3.4 mm × 3.7 mm × 3.9 mm, neck 3.00 mm, aspect ratio AR 1.13), so she underwent balloon-assisted coil placement [Figure 1]a and [Figure 1]b. A balloon catheter (Shoryu 4 × 15) was placed in the proximal supraclinoid segment of ICA. A microcatheter (Excelsior SL-10) was then introduced into the aneurysm and the aneurysmal dome was embolized with (Axium 3 × 8, 1.5 × 2) coils [Figure 1]c and [Figure 1]d. The aneurysm seemed to be completely embolized but, after balloon deflation, coils migrated and caused a significant occlusion of M3 branch with severe reduction of flow [Figure 1]e, [Figure 1]f,[Figure 1]g,[Figure 1]h. After early clinical deterioration (Glasgow Coma Scale score 14) without other neurological deficit, considering migrated coils too deep and the occluded vessel too small to perform endovascular/surgical removal of the coils, we decided to perform bypass to restore cerebral perfusion distal to the occlusion. A left frontotemporal approach [Figure 2]a was performed, followed by a bypass between the frontal branch of the STA and M3 branch. Microdoppler confirmed the patency of the bypass. Indocyanine green 800 flow was used to evaluate the risk of cerebral hyperperfusion syndrome. No postoperative bleeding was detected at postoperative computed tomography (CT) scan. During the postoperative course, the patient underwent CT angiography, magnetic resonance angiography (the patient refused any other endovascular procedure to assess bypass patency) and CT angiography perfusion sequence [Figure 2]b,[Figure 1]c, [Figure 1]d. The patient was discharged after 10 days, without neurological deficit.
|Figure 1: (a and b) Angiogram shows a left intracavernous internal carotid artery aneurysm. (c and d) The aneurysm filled by two coil. (e and f) Initially migration of coils to the left MCA bifurcation. (g and h) Migration and significant occlusion of M3 branch|
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|Figure 2: (a and b) computed tomography angiography three-dimensional reconstruction after bypass. (c) Magnetic resonance angiography confirming the patency of the bypass. (d) Computed tomography angiography perfusion sequence shows hypoperfused area in the frontal lobe (middle and inferior gyrus with low cerebral blood flow and high mean transit times with preserved cerebral blood volume)|
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| Discussion|| |
Coil migration out of their destination occurs in 0.2%–6% of procedures.,,,,,,,,, Acute coil migration is a rare condition and in literature no standardized methods to manage this complication are described. Kim et al. described six cases who underwent surgical management for parent artery occlusion linked with inadvertent coil herniation. Deshmukh et al. described a case of acute coils migration in the angular artery treated by arteriotomy and coil mass removal. Turek et al. described three cases of acute migration of endovascular tools treated by surgical removal through an incision of a middle cerebral artery (MCA) branch, the anterior temporal artery. Abdalkader et al. described three cases of delayed coils migration and one case of acute coils migration, all surgically managed with coils retrieval. Motegi et al. described a case of delayed coil migration surgically treated with removal of the coils and clip of the aneurysm with superficial temporal artery (STA-MCA) bypass to ensure blood flow to perforators of the left M1 segment during and after coil removal. Yi et al. described a case of stent thrombosis treated with high-flow extracranial-to-intracranial bypass. Abdalkader et al. also identify small aneurysm, aspect ratio <1.6 and small coils as significant risk factors for coil migration. The aneurysm treated in this paper is small and with an AR of 1.13, therefore at high risk of coil migration according to Abdalkader et al. findings. To the best of our knowledge, this is the first case report about STA-MCA bypass to treat acute significant vessel occlusion after acute coils migration without coils removal. Considering the acute significant vessel occlusion and the clinical deterioration of the patient, we decided to perform STA-MCA bypass to restore brain perfusion without performing CT/magnetic resonance imaging perfusion study. Surgical treatment was started immediately (within 1 h), as suggested by other authors in case of surgical removal of coils.,,, Readers may claim that the patient could recover also without performing STA-MCA bypass. No controlled study has been conducted to date. We can only speculate that a significant occlusion of M3 branch has high probability to become symptomatic. Ultraearly treatment (overall time from coil migration to successful revascularization was 2 h and a half) is more advisable for a better outcome.
| Conclusions|| |
Acute coil migration with significant occlusion of distal branch of MCA is uncommon, but it may be devastating if not effectively managed. However, in future, a larger number of patients could develop this complication as more and more intracranial aneurysms are aggressively treated by endovascular procedure. When surgical or endovascular retrieval of acute migrated coils in MCA branch is not possible, the significant occlusion of a distal vessel can be managed performing STA-MCA bypass as rescue therapy.
Declaration of patient consent
The authors certify that they have obtained all appropriate patient consent forms. In the form the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.
The case report was done with the support from the Department of Neurosurgery, Fujita Health University, Babuntane Hospital, Nagoya, Japan.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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[Figure 1], [Figure 2]