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Choi JH, Kim M, Park W, Park JC, Kwun BD, Ahn JS. Superficial temporal artery interposition bypass for the treatment of complex intracranial aneurysms: Flexible and creative options for flow preservation bypass. Clin Neurol Neurosurg 2023; 235:108019. [PMID: 37979563 DOI: 10.1016/j.clineuro.2023.108019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 10/20/2023] [Accepted: 10/22/2023] [Indexed: 11/20/2023]
Abstract
PURPOSE Flow-preservation bypass is a treatment option for complex intracranial aneurysms (IAs) that cannot be managed with microsurgical clipping or endovascular treatment. Various bypass methods are available, including interposition grafts such as the radial artery or saphenous vein. Size discrepancy, invasiveness, and procedure complexity must be considered when using interposition grafts. We describe our experience of treating complex IAs using a superficial temporal artery (STA) interposition bypass. METHODS We retrospectively reviewed the medical records and operative videos of all patients who were treated for complex IAs at our center from January 2009 to December 2021 using cerebral revascularization. Clinical, radiological, and surgical findings of the cases that underwent STA interposition bypass were investigated. RESULTS Seventy-six bypass procedures were performed of which seven (9.2%) complex IAs were managed using STA interposition bypass. Of these 5 cases were of anterior cerebral artery, 1 of middle cerebral artery, and 1 of posterior inferior cerebellar artery aneurysm. There were no postoperative ischemic complications. Revision surgery for postoperative pseudomeningocele was performed in one case. The long-term bypass patency rate was 85.7% (6 out of 7) and good long-term aneurysm control was achieved in all cases, with a mean follow-up of 64 months. CONCLUSIONS When treating complex IAs, creative revascularization strategies are needed in selective cases for favorable outcomes. STA interposition graft bypass which can reduce the size discrepancy between the donor and recipient may be a less invasive, flexible, and practical option for treating complex IAs.
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Affiliation(s)
- June Ho Choi
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Minwoo Kim
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Wonhyoung Park
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jung Cheol Park
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Byung Duk Kwun
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jae Sung Ahn
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
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Tayebi Meybodi A, Gadhyia A, Borba Moreira L, Lawton MT. Coding cerebral bypasses: a proposed nomenclature to better describe bypass constructs and revascularization techniques. J Neurosurg 2021; 136:163-174. [PMID: 34214977 DOI: 10.3171/2020.9.jns202362] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/24/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Bypass surgery has evolved into a complex surgical art with a variety of donor arteries, recipient arteries, interpositional grafts, anastomoses, and suturing techniques. Although innovation in contemporary bypasses has increased, the literal descriptions of these new bypasses have not kept pace. The existing nomenclature that joins donor and recipient arteries with a hyphen is simplistic, underinformative, and in need of improvement. This article proposes a nomenclature that systematically incorporates anatomical and technical details with alphanumeric abbreviations and is a clear, concise, and practical "code" for bypass surgery. METHODS Detailed descriptions and illustrations of the proposed nomenclature, which consists of abbreviations for donor and recipient arteries, arterial segments, arteriotomies, and sides (left or right), with hyphens and parentheses to denote the arteriotomies joined in the anastomosis and brackets and other symbols for combination bypasses, are presented. The literature was searched for articles describing bypasses, and descriptive nomenclature was categorized as donor and recipient arteries (donor-recipient), donor-recipient with additional details, less detail than donor-recipient, and complete, ambiguous, or descriptive text. RESULTS In 483 publications, most bypass descriptions were categorized as donor-recipient (335, 69%), with superficial temporal artery-middle cerebral artery bypass described most frequently (299, 62%). Ninety-seven articles (20%) used donor-recipient descriptions with additional details, 45 (9%) were categorized as ambiguous, and none contained a complete bypass description. The authors found the proposed nomenclature to be easily applicable to the more complex bypasses reported in the literature. CONCLUSIONS The authors propose a comprehensive nomenclature based on segmental anatomy and additional anastomotic details that allows bypasses to be coded simply, succinctly, and accurately. This alphanumeric shorthand allows greater precision in describing bypasses and clarifying technical details, which may improve reporting in the literature and thus help to advance the field of bypass surgery.
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Affiliation(s)
- Ali Tayebi Meybodi
- 1Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona; and.,2Department of Neurological Surgery, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Arjun Gadhyia
- 2Department of Neurological Surgery, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Leandro Borba Moreira
- 1Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona; and
| | - Michael T Lawton
- 1Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona; and
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Wang X, Tong X, Liu J, Shi M, Shang Y, Wang H. Tailored Communicating Bypass for the Management of Complex Anterior Communicating Artery Aneurysms: "Flow-Counteraction" In Situ Bypass and Interposition Bypass Using Contralateral A2 Orifice as Donor Site. Oper Neurosurg (Hagerstown) 2021; 19:117-125. [PMID: 31980827 DOI: 10.1093/ons/opz421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 12/01/2019] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND The use of bypass surgery for anterior communicating artery (ACOM) aneurysms is technically challenging. Communicating bypass (COMB), such as pericallosal artery side-to-side anastomosis, is the most frequently used and anatomically directed reconstruction option. However, in many complex cases, this technique may not afford a sufficient blood supply or necessitate sacrificing the ACOM and the eloquent perforators arising from it. OBJECTIVE To evaluate tailored COMB and propose a practical algorithm for the management of complex ACOM aneurysms. METHODS For 1 patient with an aneurysm incorporating the entire ACOM, conventional in Situ A3-A3 bypass was performed as the sole treatment in order to create competing flow for aneurysm obliteration, sparing the sacrifice of eloquent perforators. In situations in which A2s were asymmetric in the other case, the contralateral A2 orifice was selected as the donor site to provide adequate blood flow by employing a short segment of the interposition graft. RESULTS The aneurysm was not visualized in patients with in Situ A3-A3 bypass because of the "flow-counteraction" strategy. The second patient, who underwent implementation of the contralateral A2 orifice for ipsilateral A3 interposition bypass, demonstrated sufficient bypass patency and complete obliteration of the aneurysm. CONCLUSION The feasibility of conventional COMB combined with complete trapping may only be constrained to selected ideal cases for the treatment of complex ACOM aneurysms. Innovative modifications should be designed in order to create individualized strategies for each patient because of the complexity of hemodynamics and the vascular architecture. Flow-counteraction in Situ bypass and interposition bypass using the contralateral A2 orifice as the donor site are 2 novel modalities for optimizing the advantages and broadening the applications of COMB for the treatment of complex ACOM aneurysms.
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Affiliation(s)
- Xuan Wang
- Department of Neurosurgery, Tianjin Huanhu Hospital, Nankai University, Tianjin, China.,Department of Neurosurgery, Tianjin Central Hospital for Neurosurgery and Neurology, Tianjin, China.,Laboratory of Microneurosurgery, Tianjin Neurosurgical Institute, Tianjin, China.,Tianjin Key Laboratory of Cerebral Vascular and Neural Degenerative Diseases, Tianjin, China
| | - Xiaoguang Tong
- Department of Neurosurgery, Tianjin Huanhu Hospital, Nankai University, Tianjin, China.,Department of Neurosurgery, Tianjin Central Hospital for Neurosurgery and Neurology, Tianjin, China.,Laboratory of Microneurosurgery, Tianjin Neurosurgical Institute, Tianjin, China.,Tianjin Key Laboratory of Cerebral Vascular and Neural Degenerative Diseases, Tianjin, China
| | - Jie Liu
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Minggang Shi
- Department of Neurosurgery, Tianjin Huanhu Hospital, Nankai University, Tianjin, China.,Department of Neurosurgery, Tianjin Central Hospital for Neurosurgery and Neurology, Tianjin, China
| | - Yanguo Shang
- Department of Neurosurgery, Tianjin Huanhu Hospital, Nankai University, Tianjin, China.,Department of Neurosurgery, Tianjin Central Hospital for Neurosurgery and Neurology, Tianjin, China
| | - Hu Wang
- Department of Neurosurgery, Tianjin Huanhu Hospital, Nankai University, Tianjin, China.,Department of Neurosurgery, Tianjin Central Hospital for Neurosurgery and Neurology, Tianjin, China
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Lukyanchikov VA, Senko IV, Polunina NA, Staroverov MS, Grigoriev IV, Sinkin MV, Tikhomirov IV, Guseynova GK. [Resection of a giant fusiform aneurysm of the pericallosal artery with «hemi-bonnet bypass» procedure (case report and literature review)]. ZHURNAL VOPROSY NEĬROKHIRURGII IMENI N. N. BURDENKO 2020; 84:88-96. [PMID: 32649818 DOI: 10.17116/neiro20208403188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A 30-year-old woman with giant fusiform aneurysm of the azygos anterior cerebral artery is reported. Clipping of the aneurysm followed by modeling of pericallosal artery was performed in 2017. However, further enlargement of the aneurysm has been observed for subsequent 2 years. The patient underwent redo surgery with excision of the aneurysm followed by «hemi-bonnet bypass» procedure (anastomosis between superficial temporal artery and anterior cerebral artery with radial artery as an interposition graft). Literature data on reconstructive surgery in the treatment of complex pericallosal artery aneurysms are reviewed.
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Affiliation(s)
- V A Lukyanchikov
- Sklyfosovsky Research Institute for Emergency Care, Moscow, Russia.,Medical Institute of the Russian University of People's Friendship, Moscow, Russia
| | - I V Senko
- Federal Centre for Cerebrovascular Pathology and Stroke, Moscow, Russia
| | - N A Polunina
- Sklyfosovsky Research Institute for Emergency Care, Moscow, Russia.,Evdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
| | - M S Staroverov
- Sklyfosovsky Research Institute for Emergency Care, Moscow, Russia
| | - I V Grigoriev
- Federal Centre for Cerebrovascular Pathology and Stroke, Moscow, Russia
| | - M V Sinkin
- Sklyfosovsky Research Institute for Emergency Care, Moscow, Russia
| | - I V Tikhomirov
- Sklyfosovsky Research Institute for Emergency Care, Moscow, Russia
| | - G K Guseynova
- Sklyfosovsky Research Institute for Emergency Care, Moscow, Russia
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Schirmer CM, Griessenauer CJ, Dalal SS, Weiner G, Goren O. Commentary: Double-Barrel Extracranial-Intracranial Bypass and Trapping of Dolichoectatic Middle Cerebral Artery Aneurysms: 3-Dimensional Operative Video. Oper Neurosurg (Hagerstown) 2019; 17:E16-E17. [PMID: 30418625 DOI: 10.1093/ons/opy318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 09/20/2018] [Indexed: 11/14/2022] Open
Affiliation(s)
- Clemens M Schirmer
- Department of Neurosurgery and Neu-roscience Institute, Geisinger, Danville, Pennsylvania
| | - Christoph J Griessenauer
- Department of Neurosurgery and Neu-roscience Institute, Geisinger, Danville, Pennsylvania.,Research Institute of Neurointervention, Paracelsus Medical University, Salzburg, Austria
| | | | - Gregory Weiner
- Department of Neurosurgery and Neu-roscience Institute, Geisinger, Danville, Pennsylvania
| | - Oded Goren
- Department of Neurosurgery and Neu-roscience Institute, Geisinger, Danville, Pennsylvania
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Tayebi Meybodi A, Benet A, Griswold D, Dones F, Preul MC, Lawton MT. Anatomical Assessment of the Temporopolar Artery for Revascularization of Deep Recipients. Oper Neurosurg (Hagerstown) 2019; 16:335-344. [PMID: 29850897 DOI: 10.1093/ons/opy115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 04/19/2018] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Intracranial-intracranial and extracranial-intracranial bypass options for revascularization of deep cerebral recipients are limited and technically demanding. OBJECTIVE To assess the anatomical feasibility of using the temporopolar artery (TPA) for revascularization of the anterior cerebral artery (ACA), posterior cerebral artery (PCA), and superior cerebellar arteries (SCA). METHODS Orbitozygomatic craniotomy was performed bilaterally on 8 cadaveric heads. The cisternal segment of the TPA was dissected. The TPA was cut at M3-M4 junction with its proximal and distal calibers and the length of the cisternal segment measured. Feasibility of the TPA-A1-ACA, TPA-A2-ACA, TPA-SCA, and TPA-PCA bypasses were assessed. RESULTS A total of 17 TPAs were identified in 16 specimens. The average distal TPA caliber was 1.0 ± 0.2 mm, and the average cisternal length was 37.5 ± 9.4 mm. TPA caliber was ≥ 1.0 mm in 12 specimens (70%). The TPA-A1-ACA bypass was feasible in all specimens, whereas the TPA reached the A2-ACA, SCA, and PCA in 94% of specimens (16/17). At the point of anastomosis, the average recipient caliber was 2.5 ± 0.5 mm for A1-ACA, and 2.3 ± 0.7 mm for A2-ACA. The calibers of the SCA and PCA at the anastomosis points were 2.0 ± 0.6 mm, and 2.7 ± 0.8 mm, respectively. CONCLUSION The TPA-ACA, TPA-PCA, and TPA-SCA bypasses are anatomically feasible and may be used when the distal caliber of the TPA stump is optimal to provide adequate blood flow. This study lays foundations for clinical use of the TPA for ACA revascularization in well-selected cases.
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Affiliation(s)
- Ali Tayebi Meybodi
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona
| | - Arnau Benet
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona
| | - Dylan Griswold
- Skull Base and Cerebrovascular Laboratory, University of California, San Francisco
| | - Flavia Dones
- Skull Base and Cerebrovascular Laboratory, University of California, San Francisco
| | - Mark C Preul
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona
| | - Michael T Lawton
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona
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8
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Lee SH, Chung Y, Ryu JW, Choi SK, Kwun BD. Surgical Revascularization for the Treatment of Complex Anterior Cerebral Artery Aneurysms: Experience and Illustrative Review. World Neurosurg 2018; 111:e507-e518. [DOI: 10.1016/j.wneu.2017.12.115] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 12/18/2017] [Indexed: 10/18/2022]
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9
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Anterior Temporal Artery-to-Anterior Cerebral Artery Bypass: Anatomic Feasibility of a Novel Intracranial-Intracranial Revascularization Technique. World Neurosurg 2016; 99:667-673. [PMID: 27965074 DOI: 10.1016/j.wneu.2016.12.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 12/01/2016] [Accepted: 12/02/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND Complex aneurysms of the anterior cerebral artery (ACA) may require a bypass procedure as part of their surgical management. Most current bypass paradigms recommend technically demanding side-to-side anastomosis of pericallosal arteries or use of interposition grafts, which involve longer ischemia times. The purpose of this study is to assess the feasibility of an anterior temporal artery (ATA) to ACA end-to-side bypass. METHODS Fourteen cadaveric specimens (17 ATAs) were prepared for surgical simulation. The cisternal course of the ATA was freed from perforating branches and arachnoid. The M3-M4 junction of the ATA was cut, and the artery was mobilized to the interhemispheric fissure. The feasibility of ATA bypass to the precommunicating and postcommunicating ACA was assessed in relation to the cisternal length and branching pattern of the middle cerebral artery. RESULTS Successful anastomosis was feasible in 14 ATAs (82%). Three ATAs did not reach the ACA. These ATAs were branching distally and originated from the M3 (opercular) middle cerebral artery. In specimens where bypass was not feasible, the average cisternal length of the ATA was significantly shorter than the rest. CONCLUSIONS ATA-ACA bypass is anatomically feasible and may be a useful alternative to other revascularization techniques in selected patients. It is technically simpler than A3-A3 in situ bypass. ATA-ACA bypass can be performed through the same pterional exposure used for the ACA aneurysms, sparing the patient an additional interhemispheric approach, required for the A3-A3 anastomosis.
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10
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Esposito G, Fierstra J, Regli L. Distal outflow occlusion with bypass revascularization: last resort measure in managing complex MCA and PICA aneurysms. Acta Neurochir (Wien) 2016; 158:1523-31. [PMID: 27306538 DOI: 10.1007/s00701-016-2868-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 06/02/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Partial trapping with or without bypass revascularization is a well-established strategy in the surgical management of complex aneurysms. Distal outflow occlusion is performed by occluding the efferent artery downstream of the aneurysm and represents an alternative to proximal inflow occlusion in partial trapping treatment. With this article we report a case series employing distal outflow occlusion for managing posterior-inferior cerebellar artery (PICA) and middle cerebral artery (MCA) complex aneurysms and discuss the rationale of this treatment strategy. METHODS A case series of eight patients who underwent surgery for complex PICA (n = 3) and MCA (n = 5) aneurysms by means of distal outflow occlusion and flow-replacement bypass is presented. Two out of the eight patients presented with subarachnoid hemorrhage (SAH) (1 PICA and 1 MCA aneurysm). RESULTS In seven out of eight patients (87.5 %), total aneurysmal thrombosis was obtained; in one patient, postoperative neuroimaging showed a partial aneurysmal thrombosis. Aneurysm growth or delayed rupture was not observed. All the bypasses were patent at the end of the procedure and all but one at follow-up (asymptomatic occlusion). One patient had postoperative worsening, unrelated to bypass patency. All other patients improved. Three patients maintained an mRS score of 1, four patients had improved mRS scores by ≥1, and 1 patient had a worsened mRS score compared to preoperatively. CONCLUSIONS We believe that partial trapping with distal outflow occlusion for treating complex intracranial aneurysms represents a useful strategy as a last resort measure. To avoid cerebral ischemia, flow-replacement bypass is key to success.
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Ota N, Tanikawa R, Miyama M, Matsumoto T, Miyazaki T, Matsukawa H, Yanagisawa T, Suzuki G, Miyata S, Noda K, Tsuboi T, Takeda R, Kamiyama H, Tokuda S. Surgical Strategy for Complex Anterior Cerebral Artery Aneurysms: Retrospective Case Series and Literature Review. World Neurosurg 2016; 87:328-45. [DOI: 10.1016/j.wneu.2015.10.079] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 10/19/2015] [Accepted: 10/20/2015] [Indexed: 10/22/2022]
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12
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Nossek E, Costantino PD, Chalif DJ, Ortiz RA, Dehdashti AR, Langer DJ. Forearm Cephalic Vein Graft for Short, “Middle”-Flow, Internal Maxillary Artery to Middle Cerebral Artery Bypass. Oper Neurosurg (Hagerstown) 2015; 12:99-105. [DOI: 10.1227/neu.0000000000001027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Accepted: 08/06/2015] [Indexed: 11/19/2022] Open
Abstract
Abstract
BACKGROUND
The cervical carotid system has been used as a source of donor vessels for radial artery or saphenous vein grafts in cerebral bypass. Recently, internal maxillary artery to middle cerebral artery bypass has been described as an alternative, with reduction of graft length potentially correlating with improved patency.
OBJECTIVE
To describe our experience using the forearm cephalic vein grafts for short segment internal maxillary artery to middle cerebral artery bypasses.
METHODS
All vein grafts were harvested from the volar forearm between the proximal cubital fossa where the median cubital vein is confluent with the cephalic vein and the distal wrist.
RESULTS
Six patients were treated with internal maxillary artery to middle cerebral artery bypass. In 4, the cephalic vein was used. Postoperative angiography demonstrated good filling of the grafts with robust distal flow. There were no upper extremity vascular complications. All but 1 patient (mortality) tolerated the procedure well. The other 3 patients returned to their neurological baseline with no new neurological deficit during follow-up.
CONCLUSION
The internal maxillary artery to middle cerebral artery “middle” flow bypass allows for shorter graft length with both the proximal and distal anastomoses within the same microsurgical field. These unique variable flow grafts represent an ideal opportunity for use of the cephalic vein of the forearm, which is more easily harvested than the wider saphenous vein graft and which has good match size to the M1/M2 segments of the middle cerebral artery. The vessel wall is supple, which facilitates handling during anastomosis. There is lower morbidity potential than utilization of the radial artery. Going forward, the cephalic vein will be our preferred choice for external carotid-internal carotid transplanted conduit bypass.
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Affiliation(s)
- Erez Nossek
- Department of Neurosurgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York
| | - Peter D Costantino
- The New York Head & Neck Institute, Hofstra North Shore—Long Island Jewish School of Medicine, New York, New York
| | - David J Chalif
- Department of Neurosurgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York
| | - Rafael A Ortiz
- Department of Neurosurgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York
| | - Amir R Dehdashti
- Department of Neurosurgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York
| | - David J Langer
- Department of Neurosurgery, Hofstra North Shore-LIJ School of Medicine, Manhasset, New York
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Nossek E, Costantino PD, Eisenberg M, Dehdashti AR, Setton A, Chalif DJ, Ortiz RA, Langer DJ. Internal maxillary artery-middle cerebral artery bypass: infratemporal approach for subcranial-intracranial (SC-IC) bypass. Neurosurgery 2015; 75:87-95. [PMID: 24618804 PMCID: PMC4053591 DOI: 10.1227/neu.0000000000000340] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND: Internal maxillary artery (IMax)–middle cerebral artery (MCA) bypass has been recently described as an alternative to cervical extracranial-intracranial bypass. This technique uses a “keyhole” craniectomy in the temporal fossa that requires a technically challenging end-to-side anastomosis. OBJECTIVE: To describe a lateral subtemporal craniectomy of the middle cranial fossa floor to facilitate wide exposure of the IMax to facilitate bypass. METHODS: Orbitozygomatic osteotomy is used followed by frontotemporal craniotomy and subsequently laterotemporal fossa craniectomy, reaching its medial border at a virtual line connecting the foramen rotundum and foramen ovale. The IMax was identified by using established anatomic landmarks, neuronavigation, and micro Doppler probe (Mizuho Inc. Tokyo, Japan). Additionally, we studied the approach in a cadaveric specimen in preparation for microsurgical bypass. RESULTS: There were 4 cases in which the technique was used. One bypass was performed for flow augmentation in a hypoperfused hemisphere. The other 3 were performed as part of treatment paradigms for giant middle cerebral artery aneurysms. Vein grafts were used in all patients. The proximal anastomosis was performed in an end-to-side fashion in 1 patient and end-to-end in 3 patients. Intraoperative graft flow measured with the Transonic flow probe ranged from 20 to 60 mL/min. Postoperative angiography demonstrated good filling of the graft with robust distal flow in all cases. All patients tolerated the procedure well. CONCLUSION: IMax to middle cerebral artery subcranial-intracranial bypass is safe and efficacious. The laterotemporal fossa craniectomy technique resulted in reliable identification and wide exposure of the IMax, facilitating the proximal anastomosis. ABBREVIATIONS: EC-IC, extracranial-intracranial IMax, internal maxillary artery MCA, middle cerebral artery SC-IC, subcranial-intracranial STA, superficial temporal artery
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Affiliation(s)
- Erez Nossek
- *Department of Neurosurgery, North Shore - Long Island Jewish/Hofstra School of Medicine North Shore University Hospital, Manhasset, NY; ‡Department of Neurosurgery, North Shore - Long Island Jewish/Hofstra School of Medicine North Shore University Hospital Lenox Hill Hospital; New York, NY; §The New York Head & Neck Institute, North Shore- Long Island Jewish/Hofstra School of Medicine Lenox Hill Hospital, New York, NY
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Abla AA, Lawton MT. Anterior cerebral artery bypass for complex aneurysms: an experience with intracranial-intracranial reconstruction and review of bypass options. J Neurosurg 2014; 120:1364-77. [DOI: 10.3171/2014.3.jns132219] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Object
The authors describe their experience with intracranial-to-intracranial (IC-IC) bypasses for complex anterior cerebral artery (ACA) aneurysms with giant size, dolichoectatic morphology, or intraluminal thrombus; they determine how others have addressed the limitations of ACA bypass; and they discuss clinical indications and microsurgical technique.
Methods
A consecutive, single-surgeon experience with ACA aneurysms and bypasses over a 16-year period was retrospectively reviewed. Bypasses for ACA aneurysms reported in the literature were also reviewed.
Results
Ten patients had aneurysms that were treated with ACA bypass as part of their surgical intervention. Four patients presented with subarachnoid hemorrhage and 3 patients with mass effect symptoms from giant aneurysms; 1 patient with bacterial endocarditis had a mycotic aneurysm, and 1 patient's meningioma resection was complicated by an iatrogenic pseudoaneurysm. One patient had his aneurysm discovered incidentally. There were 2 precommunicating aneurysms (A1 segment of the ACA), 5 communicating aneurysms (ACoA), and 3 postcommunicating (A2–A3 segments of the ACA). In situ bypasses were used in 4 patients (A3-A3 bypass), interposition bypasses in 4 patients, reimplantation in 1 patient (pericallosal artery-to-callosomarginal artery), and reanastomosis in 1 patient (pericallosal artery). Complete aneurysm obliteration was demonstrated in 8 patients, and bypass patency was demonstrated in 8 patients. One bypass thrombosed, but 4 years later. There were no operative deaths, and permanent neurological morbidity was observed in 2 patients. At last follow-up, 8 patients (80%) were improved or unchanged. In a review of the 29 relevant reports, the A3-A3 in situ bypass was used most commonly, extracranial (EC)–IC interpositional bypasses were the second most common, and reanastomosis and reimplantation were used the least.
Conclusions
Anterior cerebral artery aneurysms requiring bypass are rare and can be revascularized in a variety of ways. Anterior cerebral artery aneurysms, more than any other aneurysms, require a thorough survey of patient-specific anatomy and microsurgical options before deciding on an individualized management strategy. The authors' experience demonstrates a preference for IC-IC reconstruction, but EC-IC bypasses are reported frequently in the literature. The authors conclude that ACA bypass with indirect aneurysm occlusion is a good alternative to direct clip reconstruction for complex ACA aneurysms.
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