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Alkhaibary A, Baydhi L, Alharbi A, Alshaikh AA, Khairy S, Abbas M, Abdelkhalek Aboushady AM, Almuntashri M, Alassiri AH, Alkhani A, Alferayan AA, Aloraidi A. Endoscopic versus Open Microsurgical Excision of Colloid Cysts: A Comparative Analysis and State-of-the-Art Review of Neurosurgical Techniques. World Neurosurg 2021; 149:e298-e308. [PMID: 33601083 DOI: 10.1016/j.wneu.2021.02.032] [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: 10/15/2020] [Revised: 02/06/2021] [Accepted: 02/07/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND The surgical approaches of colloid cysts commonly include endoscopy or open microsurgery. Each approach carries its own challenges, feasibility, and complications. The aim of the current study is to compare endoscopic versus open microsurgical excision of third ventricular colloid cysts. METHODS A retrospective cohort study was conducted to compare the surgical outcomes of endoscopic versus open microsurgical (transcortical-transventricular and transcallosal approaches) excision of colloid cyst of the third ventricle at a tertiary-care medical institute. All patients with a neuroradiologic diagnosis of colloid cyst who subsequently underwent surgical management between January 2003 and June 2020 were included. The neurologic outcome was assessed at the last follow-up visit. RESULTS A total of 32 patients with colloid cysts were included in the study. The mean age was 35.8 ± 18.3 years (range, 4-75 years). Female patients slightly outnumbered male patients (n = 17; 53.1%). A total of 21 patients (65.6%) underwent endoscopic resection of the colloid cyst. Complications were encountered in 7 patients (endoscopic, n = 3; microsurgery, n = 4; P = 0.151). Recurrence was identified in 4 patients (endoscopic, n = 3; microsurgery, n = 1; P = 0.673). Most patients improved neurologically on follow-up visits to the clinic (endoscopic, n = 19; microsurgery, n = 9; P = 0.482). CONCLUSIONS Both endoscopic and microsurgical approaches provide favorable surgical outcomes in colloid cyst resection. The complication rates between both approaches is statistically insignificant. The optimal surgical approach for colloid cyst resection remains controversial.
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Affiliation(s)
- Ali Alkhaibary
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; Division of Neurosurgery, Department of Surgery, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia.
| | - Laila Baydhi
- College of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Ahoud Alharbi
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Aljoharah A Alshaikh
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; Medical Imaging Department, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
| | - Sami Khairy
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; Division of Neurosurgery, Department of Surgery, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
| | - Munzir Abbas
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; Division of Neurosurgery, Department of Surgery, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
| | | | - Makki Almuntashri
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; Medical Imaging Department, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
| | - Ali H Alassiri
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; Department of Pathology and Laboratory Medicine, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
| | - Ahmed Alkhani
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; Division of Neurosurgery, Department of Surgery, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
| | | | - Ahmed Aloraidi
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; Division of Neurosurgery, Department of Surgery, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
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Bodani VP, Breimer GE, Haji FA, Looi T, Drake JM. Development and evaluation of a patient-specific surgical simulator for endoscopic colloid cyst resection. J Neurosurg 2020; 133:521-529. [PMID: 31252392 DOI: 10.3171/2019.4.jns183184] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 04/11/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Endoscopic resection of third-ventricle colloid cysts is technically challenging due to the limited dexterity and visualization provided by neuroendoscopic instruments. Extensive training and experience are required to master the learning curve. To improve the education of neurosurgical trainees in this procedure, a synthetic surgical simulator was developed and its realism, procedural content, and utility as a training instrument were evaluated. METHODS The simulator was developed based on the neuroimaging (axial noncontrast CT and T1-weighted gadolinium-enhanced MRI) of an 8-year-old patient with a colloid cyst and hydrocephalus. Image segmentation, computer-aided design, rapid prototyping (3D printing), and silicone molding techniques were used to produce models of the skull, brain, ventricles, and colloid cyst. The cyst was filled with a viscous fluid and secured to the roof of the third ventricle. The choroid plexus and intraventricular veins were also included. Twenty-four neurosurgical trainees performed a simulated colloid cyst resection using a 30° angled endoscope, neuroendoscopic instruments, and image guidance. Using a 19-item feedback survey (5-point Likert scales), participants evaluated the simulator across 5 domains: anatomy, instrument handling, procedural content, perceived realism, and confidence and comfort level. RESULTS Participants found the simulator's anatomy to be highly realistic (mean 4.34 ± 0.63 [SD]) and appreciated the use of actual instruments (mean 4.38 ± 0.58). The procedural content was also rated highly (mean 4.28 ± 0.77); however, the perceived realism was rated slightly lower (mean 4.08 ± 0.63). Participants reported greater confidence in their ability to perform an endoscopic colloid cyst resection after using the simulator (mean 4.45 ± 0.68). Twenty-three participants (95.8%) indicated that they would use the simulator for additional training. Recommendations were made to develop complex case scenarios for experienced trainees (normal-sized ventricles, choroid plexus adherent to cyst wall, bleeding scenarios) and incorporate advanced instrumentation such as side-cutting aspiration devices. CONCLUSIONS A patient-specific synthetic surgical simulator for training residents and fellows in endoscopic colloid cyst resection was successfully developed. The simulator's anatomy, instrument handling, and procedural content were found to be realistic. The simulator may serve as a valuable educational tool to learn the critical steps of endoscopic colloid cyst resection, develop a detailed understanding of intraventricular anatomy, and gain proficiency with bimanual neuroendoscopic techniques.
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Affiliation(s)
- Vivek P Bodani
- 1Center for Image Guided Innovation and Therapeutic Intervention, The Hospital for Sick Children, Toronto
- 2Division of Neurosurgery, Department of Surgery, and
- 3Institute of Biomaterials and Biomedical Engineering, University of Toronto; and
| | - Gerben E Breimer
- 1Center for Image Guided Innovation and Therapeutic Intervention, The Hospital for Sick Children, Toronto
| | - Faizal A Haji
- 4Division of Clinical Neurological Sciences, Western University, London, Ontario, Canada
| | - Thomas Looi
- 1Center for Image Guided Innovation and Therapeutic Intervention, The Hospital for Sick Children, Toronto
- 3Institute of Biomaterials and Biomedical Engineering, University of Toronto; and
| | - James M Drake
- 1Center for Image Guided Innovation and Therapeutic Intervention, The Hospital for Sick Children, Toronto
- 2Division of Neurosurgery, Department of Surgery, and
- 3Institute of Biomaterials and Biomedical Engineering, University of Toronto; and
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Isaacs AM, Bezchlibnyk YB, Dronyk J, Urbaneja G, Yong H, Hamilton MG. Long-Term Outcomes of Endoscopic Third Ventricle Colloid Cyst Resection: Case Series With a Proposed Grading System. Oper Neurosurg (Hagerstown) 2020; 19:134-142. [DOI: 10.1093/ons/opz409] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 11/04/2019] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Endoscopic resection of colloid cysts has gained recent widespread practice. However, reported complication and recurrence rates are variable, possibly, in part, because of a lack of consistency with reporting of the extent of cyst capsule removal.
OBJECTIVE
To present the long-term outcomes of endoscopic resection of third ventricle colloid cysts without complete capsule removal and propose a grading system to allow consistent description of surgical outcomes.
METHODS
A retrospective review of 74 patients who underwent endoscopic resection of symptomatic third ventricle colloid cysts between 1995 and 2018 was performed. Kaplan-Meier analyses were used to assess recurrence-free survival rates.
RESULTS
Median patient age and cyst diameter were 48.0 (13.0-80.0) yr and 12.0 (5.0-27.0) mm, respectively. Complete emptying of cyst contents with capsule coagulation was achieved in 73 (98.6%) patients. All patients improved or remained stable postoperatively, with a median follow-up duration of 10.3 (0.3-23.7) yr. Radiographic recurrence occurred in 6 (8.1%) patients after their initial surgery, 5 (6.8%) of whom underwent redo endoscopic resection. No major complications or mortality was encountered at primary or recurrence surgery.
CONCLUSION
Endoscopic resection of third ventricle colloid cysts without emphasizing complete capsule removal is a viable option for successfully treating colloid cysts of the third ventricle. Long-term follow-up demonstrates that it is associated with low risks of complications, morbidity, mortality, and recurrence. The proposed extent of the resection grading scheme will permit comparison between the different surgical approaches and facilitate the establishment of treatment guidelines for colloid cysts.
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Affiliation(s)
- Albert M Isaacs
- Department of Neuroscience, Washington University School of Medicine, St. Louis, Missouri
- Division of Neurosurgery, Department of Clinical Neuroscience, University of Calgary, Calgary, Canada
- Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Yarema B Bezchlibnyk
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, Florida
| | - Jarred Dronyk
- Division of Neurosurgery, Department of Clinical Neuroscience, University of Calgary, Calgary, Canada
- Adult Hydrocephalus Program, Department of Clinical Neuroscience, University of Calgary, Calgary, Canada
| | - Geberth Urbaneja
- Division of Neurosurgery, Department of Clinical Neuroscience, University of Calgary, Calgary, Canada
- Adult Hydrocephalus Program, Department of Clinical Neuroscience, University of Calgary, Calgary, Canada
| | - Heather Yong
- Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Mark G Hamilton
- Division of Neurosurgery, Department of Clinical Neuroscience, University of Calgary, Calgary, Canada
- Cumming School of Medicine, University of Calgary, Calgary, Canada
- Adult Hydrocephalus Program, Department of Clinical Neuroscience, University of Calgary, Calgary, Canada
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