P118 A novel technique for repair of the vertebral artery during cranial surgery

2019 ◽  
Vol 90 (3) ◽  
pp. e52.4-e53
Author(s):  
G Bonanos ◽  
M Prasad ◽  
N Mukerji
Keyword(s):  
Vertebral Artery ◽  
False Lumen ◽  
Inpatient Rehabilitation ◽  
Foramen Magnum ◽  
Csf Leak ◽  
Postoperative Haemorrhage ◽  
Novel Technique ◽  
Arterial Bleeding ◽  
Baxter Healthcare ◽  
Direct Cross

ObjectivesTo demonstrate a novel/alternative technique for repair of the vertebral artery intraoperatively.DesignLeft-sided retromastoid craniotomy in one patient.SubjectsA 61-year-old male patient with meningioma in the foramen magnum encasing the vertebral artery on the left side.MethodsStandard retrosigmoid craniotomy performed with preservation of transverse and sigmoid sinuses. The dura was opened and the cerebellum was retracted with CSF release. The tumour was debulked gradually. The attempt to peel the tumour from the vertebral artery resulted in arterial bleeding. The hole in the artery was sealed using an N-hydroxysuccinimide functionalised polyethylene glycol-coated collagen patch (Hemopatch®, Baxter Healthcare Ltd) as an onlay, applying pressure for 2 minutes. Another patch was applied for further support and the artery checked for haemostasis. The dura was closed with 3–0 vicryl and Hemopatch® onlay after further tumour debulking.ResultsHaemostasis of the vertebral artery was achieved at 140 mmHg SBP and a catheter angiogram found no dissection or false lumen. The patient did not suffer postoperative haemorrhage and after three months of inpatient rehabilitation was discharged with significantly improved cranial nerve function. There was no CSF leak.ConclusionsHaemostasis was successfully achieved in the vertebral artery with this novel technique. It can prove to be important in such scenarios where direct cross-clamping and arterial repair is technically challenging and can lead to brainstem ischemia.

Histology of the vertebral artery–dural junction: relevance to posterolateral approaches to the skull base

2019 ◽  
pp. 1-6
Author(s):  
Robert C. Rennert ◽  
Martin P. Powers ◽  
Jeffrey A. Steinberg ◽  
Takanori Fukushima ◽  
John D. Day ◽  
...  
Keyword(s):  
Connective Tissue ◽  
Vertebral Artery ◽  
Skull Base ◽  
Histological Analysis ◽  
Foramen Magnum ◽  
Entry Site ◽  
Microsurgical Technique ◽  
Vessel Injury ◽  
Far Lateral ◽  
Clear Delineation

OBJECTIVEThe far-lateral and extreme-lateral infrajugular transcondylar–transtubercular exposure (ELITE) and extreme-lateral transcondylar transodontoid (ELTO) approaches provide access to lesions of the foramen magnum, inferolateral to mid-clivus, and ventral pons and medulla. A subset of pathologies in this region require manipulation of the vertebral artery (VA)–dural interface. Although a cuff of dura is commonly left on the VA to avoid vessel injury during these approaches, there are varying descriptions of the degree of VA-dural separation that is safely achievable. In this paper the authors provide a detailed histological analysis of the VA-dural junction to guide microsurgical technique for posterolateral skull base approaches.METHODSAn ELITE approach was performed on 6 preserved adult cadaveric specimens. The VA-dural entry site was resected, processed for histological analysis, and qualitatively assessed by a neuropathologist.RESULTSHistological analysis demonstrated a clear delineation between the intima and media of the VA in all specimens. No clear plane was identified between the connective tissue of the dura and the connective tissue of the VA adventitia.CONCLUSIONSThe VA forms a contiguous plane with the connective tissue of the dura at its dural entry site. When performing posterolateral skull base approaches requiring manipulation of the VA-dural interface, maintenance of a dural cuff on the VA is critical to minimize the risk of vascular injury.

Endoscopic Endonasal Approaches to the Clivus with No Violation of the Nasopharynx: Surgical Anatomy and Clinical Illustration

2021 ◽  
Author(s):  
Carlos D. Pinheiro-Neto ◽  
Laura Salgado-Lopez ◽  
Luciano C.P.C. Leonel ◽  
Serdar O. Aydin ◽  
Maria Peris-Celda
Keyword(s):  
Posterior Fossa ◽  
Cerebrospinal Fluid Leak ◽  
Craniovertebral Junction ◽  
Foramen Magnum ◽  
Surgical Anatomy ◽  
Csf Leak ◽  
Surgical Approaches ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal

Abstract Background Despite the use of vascularized intranasal flaps, endoscopic endonasal posterior fossa defects remain surgically challenging with high rates of postoperative cerebrospinal fluid leak. Objective The aim of the study is to describe a novel surgical technique that allows complete drilling of the clivus and exposure of the craniovertebral junction with preservation of the nasopharynx. Methods Two formalin-fixed latex-injected anatomical specimens were used to confirm feasibility of the technique. Two surgical approaches were used: sole endoscopic endonasal approach and transnasion approach. The sole endonasal approach was used in a patient with a petroclival meningioma. Results In both anatomical dissections, the inferior clivectomy with exposure of the foramen magnum was achieved with a sole endoscopic endonasal approach. The addition of the transnasion approach helped to complete drilling of the inferior border of the foramen magnum and exposure of the arch of C1. Conclusion This study shows the anatomical feasibility of total clivectomy and exposure of the craniovertebral junction with preservation of the nasopharynx. A more favorable anatomical posterior fossa defect for the reconstruction is achieved with this technique. Further clinical studies are needed to assess if this change would impact the postoperative CSF leak rate.

Non-Standard Management of Target Vessels With the Inner Branch Arch Endograft: A Single-Center Retrospective Study

2021 ◽  
pp. 152660282110586
Author(s):  
Jose I. Torrealba ◽  
Konstantinos Spanos ◽  
Giuseppe Panuccio ◽  
Fiona Rohlffs ◽  
Thomas Gandet ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Vertebral Artery ◽  
Subclavian Artery ◽  
False Lumen ◽  
Aberrant Right Subclavian Artery ◽  
Left Vertebral Artery ◽  
Type I ◽  
Single Center ◽  
Standard Management

Purpose: The purpose of this study was to evaluate early and mid-term results of non-standard management of the supraaortic target vessels with the use of the inner branch arch endograft in a single high-volume center. Material and methods: A single-center retrospective study including all patients undergoing implantation of an inner branch arch endograft from December 2012 to March 2021, who presented a non-standard management of the supraaortic target vessels (any bypass other than a left carotid-subclavian or landing in a dissected target vessel). Technical success, mortality, reinterventions, endoleak (EL), and aortic remodeling at follow-up were analyzed. Results: Twenty-four patients were included. In 17 (71%) cases, the non-standard management was related to innominate artery (IA) compromise (12 with IA dissection, 2 with short IA, 2 with short proximal aortic landing zone that required occlusion of IA, 1 with occluded IA after open arch repair). Two (8%) cases were related to an aberrant right subclavian artery (RSA), 1 patient (4%) due to the concomitant presence of a left vertebral artery (LVA) arising from the arch and an occluded left subclavian artery (LSA), and another patient presented with an occluded LSA distal to a dominant vertebral artery. Three (13%) cases were exclusively related to management in patients with genetic aortic syndromes. Twenty (83%) patients had a previous type A aortic dissection. Ten (42%) patients presented a thoracic or thoracoabdominal aortic aneurysm and 8 (33%) patients an arch aneurysm, 6 of them associated to false lumen (FL) perfusion. There were 2 (8%) perioperative minor strokes, and 1 patient with perioperative mortality. Seven patients presented an early type I endoleak, all resolved at follow-up. Seven patients required reinterventions during follow-up (7 reinterventions related to continuous false lumen perfusion, 3 related to Type Ia endoleak, 2 related to surgical bypass). All patients who presented with FL perfusion had complete FL thrombosis at follow-up. No patient presented aneurysm growth at follow-up. Conclusions: The use of the inner branch arch endograft with a non-standard management of the supraaortic target vessels is a possible option. Despite a high reintervention rate, regression or stability of the aneurysmal diameter was achieved in all the patients with follow-up.

Flow Diversion: A Novel Technique In The Management Of Aneurysmal False Lumen In Chronic Type B Aortic Dissection

2020 ◽  
Vol 63 ◽  
pp. 10-11
Author(s):  
Motahar Hosseini ◽  
David N. Blitzer ◽  
Anahita Ghazi ◽  
Shahab Toursavadkohi
Keyword(s):  
Aortic Dissection ◽  
False Lumen ◽  
Flow Diversion ◽  
Type B ◽  
Type B Aortic Dissection ◽  
Chronic Type ◽  
Novel Technique

scholarly journals Anomalous Origin of the Vertebral Artery

2018 ◽  
Vol 35 (04) ◽  
pp. 216-217
Author(s):  
André Shinohara ◽  
Beatriz Sangalette ◽  
Mateus Silva ◽  
Laís Rinaldi ◽  
Juliane Souza ◽  
...  
Keyword(s):  
Vertebral Artery ◽  
Aortic Arch ◽  
Subclavian Artery ◽  
Surgical Procedures ◽  
Foramen Magnum ◽  
Left Vertebral Artery ◽  
Clear Understanding ◽  
Case Presentation ◽  
Human Specimen ◽  
The Common

Introduction The present article presents a rare case of variation of the left vertebral artery, which originated from the aortic arch, between the common carotid artery and the subclavian artery, although classic descriptions of the vertebral artery indicate its origin at the subclavian artery, where it penetrates the foramen transverse and ascends cervically to the foramen magnum. Case presentation The anatomical peculiarity of the vertebral artery is evidenced. The origin of the vertebral artery was identified directly from the aortic arch in a dissected human specimen. Conclusion In view of the numerous surgical procedures performed in this area, the clear understanding of its topographic layout is indispensable, and might change surgical procedures performed in the region.

Hemifacial spasm caused by a spontaneous dissecting aneurysm of the vertebral artery

1991 ◽  
Vol 74 (4) ◽  
pp. 650-652 ◽  
Author(s):  
Kengo Matsumoto ◽  
Toshikazu Saijo ◽  
Hideyuki Kuyama ◽  
Shoji Asari ◽  
Akira Nishimoto
Keyword(s):  
Vertebral Artery ◽  
Hemifacial Spasm ◽  
Clinical Symptoms ◽  
False Lumen ◽  
Dissecting Aneurysm ◽  
Left Vertebral Artery ◽  
Complete Relief ◽  
Vertebral Angiography ◽  
Content Type ◽  
Venous Phase

✓ The authors describe the first reported case of dissecting aneurysm presenting with hemifacial spasm. The patient was a 58-year-old woman with left hemifacial spasm of 2 years' duration. Cranial nerve examination was otherwise normal and no other clinical symptoms were observed. Vertebral angiography revealed a fusiform enlargement of the left vertebral artery and contrast medium remaining in the intramural false lumen in the venous phase. Microvascular decompression of the facial nerve with wrapping of the aneurysm resulted in complete relief of the hemifacial spasm.

Microvascular anatomy of foramen caecum medullae oblongatae

1991 ◽  
Vol 75 (2) ◽  
pp. 299-304 ◽  
Author(s):  
Asim Mahmood ◽  
Manuel Dujovny ◽  
Maximo Torche ◽  
Ljubisa Dragovic ◽  
James I. Ausman
Keyword(s):  
Vertebral Artery ◽  
Basilar Artery ◽  
Foramen Magnum ◽  
Left Vertebral Artery ◽  
Anterior Inferior Cerebellar Artery ◽  
Outer Diameter ◽  
Vertebrobasilar Insufficiency ◽  
High Concentration ◽  
Content Type ◽  
Fine Print

✓ The foramen caecum (FC) is a triangular-shaped fossa situated in the midline on the base of the brain stem, at the pontomedullary junction. Although this area is known to have a very high concentration of brainstem perforating vessels, its microvascular anatomy has not been studied in detail. The purpose of this study was to detail the microvasculature of this territory. Twenty unfixed brains were injected with silicone rubber solution and dissected under a microscope equipped with a camera. The origin, course, outer diameter, and branching pattern of the perforators were examined. The total number of perforators found in the 20 brains was 287, with an average (± standard deviation) of 14.35 ± 1.24 perforators per brain (range seven to 28). Their origin was as follows: right vertebral artery in 52 perforators (18.11%); left vertebral artery in 35 (12.19%); basilar artery below the anterior inferior cerebellar artery (AICA) in 139 (48.43%); basilar artery above the AICA in 46 (16.02%); AICA in 10 (3.48%); and anterior spinal artery in five (1.74%). Most of the perforators arose as sub-branches of larger trunks; their average outer diameter was 0.16 ± 0.006 mm while that of trunks was 0.35 ± 0.02 mm. These anatomical data are important for those wishing 1) to study the pathophysiology of vascular insults to this area caused by atheromas, thrombi, and emboli; 2) to plan vertebrobasilar aneurysm surgery; 3) to plan surgery for vertebrobasilar insufficiency; and 4) to study foramen magnum neoplasms.

Vertebral Artery Surgery - An Overview of Techniques and Discussion Points for the Future

2011 ◽  
Vol 6 (3) ◽  
pp. 193
Author(s):  
Bernard George ◽  
Keyword(s):  
Vertebral Artery ◽  
Jugular Foramen ◽  
Craniocervical Junction ◽  
Foramen Magnum ◽  
Surgical Anatomy ◽  
Surgical Approaches ◽  
Arteriovenous Fistulas ◽  
Intermittent Compression ◽  
Safety And Reliability ◽  
And Control

The vertebral artery (VA) is an important vessel supplying the hind brain; its surgical exposure and control is usually considered a great challenge. In fact, with good knowledge of surgical anatomy and proper surgical technique, the VA can be controlled and occasionally repaired with safety and reliability. VA exposure is useful in many instances and helps attain better results in the surgical treatment of many different pathologies at any level all along its course in the neck and the skull. These pathologies include intrinsic lesions (atherosclerosis, aneurysms, arteriovenous fistulas), intermittent compression by osteophytes or fibrous bands, and permanent compression mostly by different types of tumours. VA exposure also helps to achieve better treatment of spondylotic myelopathy (by oblique corpectomy) and of tumours at the craniocervical junction, foramen magnum and jugular foramen level. Based on the experience of more than 1,600 surgical approaches, VA surgery is associated with a very limited morbidity and mortality.

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