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Sweeney KJ, Amoo M, Kilbride R, Jallo GI, Javadpour M. Exoscope aided trans-sulcal minimally invasive parafascicular resection of a paediatric brainstem pilocytic astrocytoma using a tubular retractor system. Br J Neurosurg 2024; 38:746-751. [PMID: 34397316 DOI: 10.1080/02688697.2021.1967880] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/15/2021] [Accepted: 08/09/2021] [Indexed: 10/20/2022]
Abstract
The surgical management of brainstem glioma is challenging and has significant morbidity. Advances in surgical armamentarium has presented the opportunity to tackle these lesions. We present the case of a paediatric patient with a 2.3cm midbrain pilocytic astrocytoma. With the aid of tractography, neuro-navigation, 3-dimensional exoscope and a tubular retractor, near total resection of the tumour was achieved through a trans-sulcal para-fascicular approach without permanent injury to the corticospinal tract. To our knowledge this is the first report of a brainstem tumour resected using this approach and demonstrates what can be achieved with synergistic utility of evolving technologies in neurosurgery.
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Affiliation(s)
- Kieron J Sweeney
- National Neurosurgical Centre, Beaumont Hospital, Dublin, Ireland
- Department of Neurology, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Health Ireland, Temple Street Children's University Hospital, Dublin, Ireland
| | - Michael Amoo
- National Neurosurgical Centre, Beaumont Hospital, Dublin, Ireland
- Department of Neurology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Ronan Kilbride
- Department of Neurology and Clinical Neurophysiology, Beaumont Hospital, Dublin, Ireland
| | - George I Jallo
- Department of Pediatric Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mohsen Javadpour
- National Neurosurgical Centre, Beaumont Hospital, Dublin, Ireland
- Department of Neurology, Royal College of Surgeons in Ireland, Dublin, Ireland
- Department of Academic Neurology, Trinity College Dublin, Dublin, Ireland
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2
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Sinha S, Kalyal N, Gallagher MJ, Richardson D, Kalaitzoglou D, Abougamil A, Silva M, Oviedova A, Patel S, Mirallave-Pescador A, Bleil C, Zebian B, Gullan R, Ashkan K, Vergani F, Bhangoo R, Pedro Lavrador J. Impact of Preoperative Mapping and Intraoperative Neuromonitoring in Minimally Invasive Parafascicular Surgery for Deep-Seated Lesions. World Neurosurg 2024; 181:e1019-e1037. [PMID: 37967744 DOI: 10.1016/j.wneu.2023.11.030] [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: 09/28/2023] [Accepted: 11/07/2023] [Indexed: 11/17/2023]
Abstract
BACKGROUND Transsulcal tubular retractor-assisted minimally invasive parafascicular surgery changes the surgical strategy for deep-seated lesions by promoting a deficit-sparing approach. When integrated with preoperative brain mapping and intraoperative neuromonitoring (IONM), this approach may potentially improve patient outcomes. In this study, we assessed the impact of preoperative brain mapping and IONM in tubular retractor-assisted neuro-oncological surgery. METHODS This retrospective single-center cohort study included patients who underwent transsulcal tubular retractor-assisted minimally invasive parafascicular surgery for resection of deep-seated brain tumors from 2016 to 2022. The cohort was divided into 3 groups: group 1, no preoperative mapping or IONM (17 patients); group 2, IONM only (25 patients); group 3, both preoperative mapping and IONM (38 patients). RESULTS We analyzed 80 patients (33 males and 47 females) with a median age of 46.5 years (range: 1-81 years). There was no significant difference in mean tumor volume (26.2 cm3 [range 1.07-97.4 cm3]; P = 0.740) and mean preoperative depth of the tumor (31 mm [range 3-65 mm], P = 0.449) between the groups. A higher proportion of high-grade gliomas and metastases was present within group 3 (P = 0.003). IONM was related to fewer motor (P = 0.041) and language (P = 0.032) deficits at hospital discharge. Preoperative mapping and IONM were also related to shorter length of stay (P = 0.008). CONCLUSIONS Preoperative and intraoperative brain mapping and monitoring enhance transsulcal tubular retractor-assisted minimally invasive parafascicular surgery in neuro-oncology. Patients had a reduced length of stay and prolonged overall survival. IONM alone reduces postoperative neurological deficit.
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Affiliation(s)
- Siddharth Sinha
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom.
| | - Nida Kalyal
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Mathew J Gallagher
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Daniel Richardson
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Dimitrios Kalaitzoglou
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Ahmed Abougamil
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Melissa Silva
- Department of Neurosurgery, Intraoperative Neurophysiology, King's College Hospital Foundation Trust, London, United Kingdom
| | - Anna Oviedova
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Sabina Patel
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Ana Mirallave-Pescador
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom; Departamento de Neurocirurgia, Hospital Garcia de Orta, Almada, Portugal
| | - Cristina Bleil
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Bassel Zebian
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Richard Gullan
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Keyoumars Ashkan
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Francesco Vergani
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - Ranjeev Bhangoo
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
| | - José Pedro Lavrador
- Department of Neurosurgery, King's College Hospital Foundation Trust, London, United Kingdom
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Rakovec M, Camp S, Day D, Chakravarti S, Parker M, Porras JL, Jackson CM, Huang J, Bettegowda C, Lim M, Mukherjee D. Use of tubular retractors to access deep brain lesions: A case series. J Clin Neurosci 2023; 114:64-69. [PMID: 37321019 DOI: 10.1016/j.jocn.2023.06.002] [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: 04/04/2023] [Revised: 05/23/2023] [Accepted: 06/02/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Deep-seated intracranial lesions can be accessed using blade retractors that may disrupt white matter tracts, exert pressure on adjacent tissue, and lead to post-operative venous injury. Tubular retractors may minimize disruption to white matter tracts by radially dispersing pressure onto surrounding tissue. This study characterizes perioperative outcomes in patients undergoing biopsy or resection of intracranial pathologies using tubular retractors. METHODS Adult patients (≥18 years) undergoing neurosurgical intervention using tubular retractors at a single health system (January 2016-February 2022) were identified through chart review. Demographics, disease characteristics, management data, and clinical outcomes were collected. RESULTS A total of 49 patients were included; 23 (47%) had primary brain tumors, 8 (16%) metastases, 6 (12%) intracranial hemorrhage (ICH), 5 (10%) cavernomas, and 7 (14%) other pathologies. Lesions were located subcortically (n = 19, 39%), intraventricularly (n = 15, 31%), and in deep gray matter (n = 11, 22%). Gross total resection (GTR) or near GTR was achieved in 21 of 26 (80.8%) patients with intracranial lesions where GTR was the goal of surgery; 10 of 11 (90.9%) biopsies in patients with masses were diagnostic. Five of six (83.3%) ICHs were totally or near totally evacuated. Seventeen patients (35%) had major complications post-operatively. The most common complications were DVT/PE (n = 7, 14%) and seizures (n = 6, 12%). For patients who experienced post-operative seizures, 3 had seizures preoperatively and 1 had seizures in the context of electrolyte derangements. No patients died of post-operative complications. CONCLUSION This operative approach may facilitate safe and efficacious biopsy or resection of deep-seated intracranial pathologies.
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Affiliation(s)
- Maureen Rakovec
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States
| | - Samantha Camp
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States
| | - David Day
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States
| | - Sachiv Chakravarti
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States
| | - Megan Parker
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States
| | - Jose L Porras
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States
| | - Christopher M Jackson
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States
| | - Judy Huang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States
| | - Chetan Bettegowda
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States
| | - Michael Lim
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA 94305, United States
| | - Debraj Mukherjee
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, United States.
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Rossmann T, Veldeman M, Nurminen V, Huhtakangas J, Niemelä M, Lehecka M. 3D Exoscopes are Noninferior to Operating Microscopes in Aneurysm Surgery: Comparative Single-Surgeon Series of 52 Consecutive Cases. World Neurosurg 2023; 170:e200-e213. [PMID: 36334715 DOI: 10.1016/j.wneu.2022.10.106] [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: 09/13/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The literature on exoscope use in cerebrovascular neurosurgery is scarce, mainly comprising small case series and focused on visualization quality and ergonomics. As these devices become widely used, direct comparison to the operating microscope regarding efficacy and patient safety is necessary. METHODS Fifty-two consecutive clipping procedures, performed by 1 senior vascular neurosurgeon, were analyzed. Either an operating microscope with a mouth switch (25 cases with 27 aneurysms; 13 ruptured) or a three-dimensional exoscope with a foot switch (27 cases with 34 aneurysms; 6 ruptured) were used. Durations of major surgical stages, number of device adjustments, numbers of clip repositionings and clips implanted were extracted from surgical videos. Demographic data, imaging characteristics, clinical course and outcomes were extracted from digital patient records. RESULTS Duration of surgery and different stages did not differ between devices, except for final site inspection. The number of device adjustments was higher with the exoscope. With progressive experience in exoscope use, the number of device adjustments increased significantly, whereas surgery duration remained unchanged. Favorable outcome (modified Rankin Scale score 0-2) was observed in 80% and 88% of patients in the microscope and exoscope groups, respectively. Ischemic events were found in 2 patients in each group; no other complications occurred. CONCLUSIONS In aneurysm clipping, three-dimensional exoscopes are noninferior to operating microscopes in terms of surgery duration, safety, and outcomes, based on our limited series. Progressive experience enables the surgeon to perform significantly more device adjustments within the same amount of surgical time.
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Affiliation(s)
- Tobias Rossmann
- Department of Neurosurgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland; Department of Neurosurgery, Neuromed Campus, Kepler University Hospital, Linz, Austria.
| | - Michael Veldeman
- Department of Neurosurgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland; Department of Neurosurgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Ville Nurminen
- Department of Neurosurgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Justiina Huhtakangas
- Department of Neurosurgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Mika Niemelä
- Department of Neurosurgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Martin Lehecka
- Department of Neurosurgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
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The Exoscope in Neurosurgery: An Overview of the Current Literature of Intraoperative Use in Brain and Spine Surgery. J Clin Med 2021; 11:jcm11010223. [PMID: 35011964 PMCID: PMC8745525 DOI: 10.3390/jcm11010223] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/18/2021] [Accepted: 12/30/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Exoscopes are a safe and effective alternative or adjunct to the existing binocular surgical microscope for brain tumor, skull base surgery, aneurysm clipping and both cervical and lumbar complex spine surgery that probably will open a new era in the field of new tools and techniques in neurosurgery. Methods: A Pubmed and Ovid EMBASE search was performed to identify papers that include surgical experiences with the exoscope in neurosurgery. PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-analyses) were followed. Results: A total of 86 articles and 1711 cases were included and analyzed in this review. Among 86 papers included in this review 74 (86%) were published in the last 5 years. Out of 1711 surgical procedures, 1534 (89.6%) were performed in the operative room, whereas 177 (10.9%) were performed in the laboratory on cadavers. In more detail, 1251 (72.7%) were reported as brain surgeries, whereas 274 (16%) and 9 (0.5%) were reported as spine and peripheral nerve surgeries, respectively. Considering only the clinical series (40 studies and 1328 patients), the overall surgical complication rate was 2.6% during the use of the exoscope. These patients experienced complication profiles similar to those that underwent the same treatments with the OM. The overall switch incidence rate from exoscope to OM during surgery was 5.8%. Conclusions: The exoscope seems to be a safe alternative compared to an operative microscope for the most common brain and spinal procedures, with several advantages that have been reached, such as an easier simplicity of use and a better 3D vision and magnification of the surgical field. Moreover, it offers the opportunity of better interaction with other members of the surgical staff. All these points set the first step for subsequent and short-term changes in the field of neurosurgery and offer new educational possibilities for young neurosurgery and medical students.
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Abstract
As the epidemiological and clinical burden of brain metastases continues to grow, advances in neurosurgical care are imperative. From standard magnetic resonance imaging (MRI) sequences to functional neuroimaging, preoperative workups for metastatic disease allow high-resolution detection of lesions and at-risk structures, facilitating safe and effective surgical planning. Minimally invasive neurosurgical approaches, including keyhole craniotomies and tubular retractors, optimize the preservation of normal parenchyma without compromising extent of resection. Supramarginal surgery has pushed the boundaries of achieving complete removal of metastases without recurrence, especially in eloquent regions when paired with intraoperative neuromonitoring. Brachytherapy has highlighted the potential of locally delivering therapeutic agents to the resection cavity with high rates of local control. Neuronavigation has become a cornerstone of operative workflow, while intraoperative ultrasound (iUS) and intraoperative brain mapping generate real-time renderings of the brain unaffected by brain shift. Endoscopes, exoscopes, and fluorescent-guided surgery enable increasingly high-definition visualizations of metastatic lesions that were previously difficult to achieve. Pushed forward by these multidisciplinary innovations, neurosurgery has never been a safer, more effective treatment for patients with brain metastases.
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Affiliation(s)
- Patrick R Ng
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Bryan D Choi
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Manish K Aghi
- Department of Neurosurgery, University of California San Francisco, San Francisco, CA, USA
| | - Brian V Nahed
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Marenco-Hillembrand L, Suarez-Meade P, Chaichana KL. Bur Hole-Based Resections of Intrinsic Brain Tumors with Exoscopic Visualization. J Neurol Surg A Cent Eur Neurosurg 2020; 82:105-111. [PMID: 33352611 DOI: 10.1055/s-0040-1719108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND The primary goal of brain tumor surgery is maximal safe resection while avoiding iatrogenic injury. As surgical technology increases, it is becoming more possible to resect these lesions using minimally invasive approaches. While keyhole surgeries are being advocated, the lower limit of these approaches is unclear. Bur hole-based approaches may represent a standardized minimally invasive approach. The exoscope may provide increased visualization over standard microscopic visualization, making this approach possible. This approach has yet to be described strictly for intra-axial brain tumors. MATERIAL AND METHODS All patients who underwent a bur hole-based surgery of an intra-axial tumor with exoscopic visualization by the senior author from January 2018 to December 2019 were prospectively identified and patient information and outcomes were collected. RESULTS Fifteen consecutive patients underwent surgical resection of an intrinsic brain tumor using a bur hole-based approach with exoscopic visualization. The average ± standard deviation age was 57.9 ± 24.2 years. The pathology was a metastatic brain tumor in eight patients (53%), low-grade glioma in four patients (27%), and high-grade glioma in three patients (20%). The average percent resection was 100 ± 1%, where 14 (93%) underwent gross total resection. Following surgery, the median (interquartile range) Karnofsky performance scale (KPS) score was 90 (90-90), where 11 (73%) and four patients (27%) had improved and stable KPS, respectively. Zero patients had complications. The average length of stay following surgery was 1.4 ± 0.5 days, where nine patients (60%) were discharged on postoperative day 1. CONCLUSION This study shows that intra-axial tumors can be resected through a bur hole-based approach with exoscopic visualization with extensive resection, minimal morbidity, and early discharge rates.
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Affiliation(s)
| | - Paola Suarez-Meade
- Department of Neurosurgery, Mayo Clinic, Jacksonville, Florida, United States
| | - Kaisorn L Chaichana
- Department of Neurosurgery, Mayo Clinic, Jacksonville, Florida, United States
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Okasha M, Ineson G, Pesic-Smith J, Surash S. Transcortical Approach to Deep-Seated Intraventricular and Intra-axial Tumors Using a Tubular Retractor System: A Technical Note and Review of the Literature. J Neurol Surg A Cent Eur Neurosurg 2020; 82:270-277. [PMID: 33321519 DOI: 10.1055/s-0040-1719025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Retraction of white matter overlying a brain lesion can be difficult without causing significant trauma especially when using traditional methods of bladed retractors. These conventional retractors can produce regions of focal pressure resulting in contusions and areas of infarct. METHODS In this article, we present a retrospective case series of six patients with deep-seated intraventricular and intra-axial tumors that were approached using a ViewSite Brain Access System (tubular retractor). The authors describe a unique method of creating a pathway using a dilated glove. We shall also review the relevant literature that reports this type of surgery. Cases included three cases with third ventricular colloid cysts, one case of a third ventricular arachnoid cyst, one case with a lateral ventricular neurocytoma, and a case with a deeply seated intra-axial metastatic tumor. RESULTS Gross total resection was achieved in five cases with small residual in the central neurocytoma operation, with no documented neurological deficit in any case. One case had persistent memory problems and one case had continuing decline from the metastatic disease. CONCLUSION The introduction of tubular-shaped retractor systems has offered the advantage of reducing retraction pressures and distributing any remaining force in a more even and larger distributed area, thus reducing the risk of previous associated morbidity while also permitting great visualization of the target lesion.
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Affiliation(s)
- Mohamed Okasha
- Department of Neurosurgery, Royal Victoria Infirmary, Newcastle Upon Tyne, United Kingdom of Great Britain and Northern Ireland
| | - Georgia Ineson
- Medical School, Newcastle University, Newcastle upon Tyne, Tyne and Wear, United Kingdom of Great Britain and Northern Ireland
| | - Jonathan Pesic-Smith
- Department of Neurosurgery, Royal Victoria Infirmary, Newcastle Upon Tyne, United Kingdom of Great Britain and Northern Ireland
| | - Surash Surash
- Department of Neurosurgery, Royal Victoria Infirmary, Newcastle Upon Tyne, United Kingdom of Great Britain and Northern Ireland
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Echeverry N, Mansour S, MacKinnon G, Jaraki J, Shapiro S, Snelling B. Intracranial Tubular Retractor Systems: A Comparison and Review of the Literature of the BrainPath, Vycor, and METRx Tubular Retractors in the Management of Deep Brain Lesions. World Neurosurg 2020; 143:134-146. [DOI: 10.1016/j.wneu.2020.07.131] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/17/2020] [Accepted: 07/18/2020] [Indexed: 12/19/2022]
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Marenco-Hillembrand L, Prevatt C, Suarez-Meade P, Ruiz-Garcia H, Quinones-Hinojosa A, Chaichana KL. Minimally Invasive Surgical Outcomes for Deep-Seated Brain Lesions Treated with Different Tubular Retraction Systems: A Systematic Review and Meta-Analysis. World Neurosurg 2020; 143:537-545.e3. [PMID: 32712409 DOI: 10.1016/j.wneu.2020.07.115] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 02/09/2023]
Abstract
BACKGROUND Minimally invasive surgery using tubular retractors was developed to minimize injury of surrounding brain during the removal of deep-seated lesions. No evidence supports the superiority of any available tubular retraction system in the treatment of these lesions. We conducted a systematic review and meta-analysis to evaluate outcomes and complications after the resection of deep-seated lesions with tubular retractors and among available systems. METHODS A PRISMA compliant systematic review was conducted on PubMed, Embase, and Scopus to identify studies in which tubular retractors were used to resect deep-seated brain lesions in patients ≥18 years old. RESULTS The search strategy yielded 687 articles. Thirteen articles complying with inclusion criteria and quality assessment were included in the meta-analysis. A total of 309 patients operated on between 2008 and 2018 were evaluated. The most common lesions were gliomas (n = 127), followed by metastases (n = 101) and meningiomas (n = 19). Four different tubular retractors were used: modified retractors (n = 121, 39.1%); METRx (n = 60, 19.4%); BrainPath (n = 92, 29.7%); and ViewSite Brain Access System (n = 36,11.7%). Estimated gross total resection rate was 75% (95% confidence interval, 69%-80%; I2 = 9%), whereas the estimated complication rate was 9% (95% confidence interval: 6%-14%; I2 = 0%). None of the different brain retraction systems was found to be superior regarding extent of resection or complications on multiple comparisons (P > 0.05). CONCLUSIONS Tubular retractors represent a promising tool to achieve maximum safe resection of deep-seated brain lesions. However, there does not seem to be a statistically significant difference in extent of resection or complication rates among tubular retraction systems.
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Affiliation(s)
| | - Calder Prevatt
- Department of Neurological Surgery, Mayo Clinic, Jacksonville, Florida, USA
| | - Paola Suarez-Meade
- Department of Neurological Surgery, Mayo Clinic, Jacksonville, Florida, USA
| | - Henry Ruiz-Garcia
- Department of Neurological Surgery, Mayo Clinic, Jacksonville, Florida, USA
| | | | - Kaisorn L Chaichana
- Department of Neurological Surgery, Mayo Clinic, Jacksonville, Florida, USA.
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Chakravarthi SS, Lyons L, Bercu M, Singer JA. Minimally Invasive Parafascicular Surgical Approach for the Management of a Pediatric Third Ventricular Ependymoma: Case Report and Review of Literature. World Neurosurg 2020; 141:311-317. [PMID: 32387401 DOI: 10.1016/j.wneu.2020.04.201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/26/2020] [Accepted: 04/27/2020] [Indexed: 01/21/2023]
Abstract
BACKGROUND Minimally invasive parafascicular surgery (MIPS) has evolved into a safe alternative to access deep-seated subcortical and intraventricular pathologies. We present a case of a port-mediated resection of a pediatric third ventricular tumor. CASE DESCRIPTION The patient is a 7-year-old boy who presented with worsening headache, nausea, vomiting, dizziness, unsteady gait, photophobia, and blind spots with positional changes. Magnetic resonance imaging (MRI) scan revealed a large isointense mass, with areas of hyperintensities suggestive of intratumoral hemorrhage, centered in the posterior segment of the third ventricle with extension into the aqueduct of Sylvius. The superior frontal sulcus was used as an access corridor for the port to the frontal horn of the lateral ventricle en route to the third ventricle. Intraoperative visualization was aided with a 3-dimensional exoscopic system. After cannulation, the tumor was seen within the foramen of Monro and tethered to the thalamostriate vein. The tumor was removed completely, with the exception of small residual attached to the thalamostriate vein, which was left intentionally. A flexible endoscope was placed through the port to verify the absence of residual along the superior wall of the third ventricle. Intraoperative MRI scan confirmed presence of residual, along with normal postoperative changes, including pneumocephalus. Postoperative MRI scan revealed cortical recovery along the sulcal path and resolution of ventriculomegaly. CONCLUSIONS The patient improved from baseline, with no remaining visual deficits, headaches, or balance issues. Pathology reported a World Health Organization grade II tanycytic ependymoma. To our knowledge, few cases have reported the utilization of port-based MIPS in pediatric patients.
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Affiliation(s)
- Srikant S Chakravarthi
- Neuroanatomy Laboratory, Aurora Research Institute, Aurora St. Luke's Medical Center, Milwaukee, Wisconsin, USA
| | - Leah Lyons
- Department of Clinical Neurosciences (Division of Neurosurgery), Spectrum Health, Grand Rapids, Michigan, USA
| | - Marian Bercu
- Department of Clinical Neurosciences (Division of Neurosurgery), Spectrum Health, Grand Rapids, Michigan, USA
| | - Justin A Singer
- Department of Clinical Neurosciences (Division of Neurosurgery), Spectrum Health, Grand Rapids, Michigan, USA.
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Mansour S, Echeverry N, Shapiro S, Snelling B. The Use of BrainPath Tubular Retractors in the Management of Deep Brain Lesions: A Review of Current Studies. World Neurosurg 2020; 134:155-163. [DOI: 10.1016/j.wneu.2019.08.218] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 08/26/2019] [Accepted: 08/28/2019] [Indexed: 01/05/2023]
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