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Sasagawa Y, Tanaka S, Kinoshita M, Nakada M. Endoscopic and exoscopic surgery for brain tumors. Int J Clin Oncol 2024:10.1007/s10147-024-02529-9. [PMID: 38976183 DOI: 10.1007/s10147-024-02529-9] [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: 03/14/2024] [Accepted: 04/04/2024] [Indexed: 07/09/2024]
Abstract
Nerves and blood vessels must be protected during brain tumor surgery, which has traditionally relied on microscopes. In the 2000s, endoscopes and related equipment were developed for neurosurgery. In this review, we aim to outline the role of endoscopes in brain tumor surgery and discuss the emerging use of exoscopes. The primary use of endoscopes in brain tumor surgery is in endoscopic endonasal surgery for pituitary tumors. By using the space within the sphenoid sinus, surgeons can insert an endoscope and instruments such as forceps or scissors through the nose to access and remove the tumor. Compared to microscopes, endoscopes can get closer to tumors, nerves, and blood vessels. They enable wide-angle observation of the skull base, making them valuable for skull base tumors as well as pituitary tumors. Endoscopes are also used in cases where a brain tumor is associated with hydrocephalus, allowing surgeons to correct obstructive hydrocephalus and perform tumor biopsies simultaneously. Exoscopy, a newer technique introduced in recent years, involves surgeons wearing special glasses and removing the tumor while viewing a three-dimensional monitor. This approach reduces surgeon fatigue and allows for more natural positioning during lengthy brain tumor surgeries. Future brain tumor surgeries will likely involve robotic surgery, which is already used for other organs. This is expected to make brain tumor removal safer and more accurate.
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Affiliation(s)
- Yasuo Sasagawa
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-Machi, Kanazawa, Ishikawa, 920-8641, Japan.
| | - Shingo Tanaka
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-Machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Masashi Kinoshita
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-Machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Mitsutoshi Nakada
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-Machi, Kanazawa, Ishikawa, 920-8641, Japan
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García-Milán V, Moreno-Madueño G, Urreta Juárez G, Rivero-Garvía M, Márquez-Rivas J. Long-Term Success of Endoscopic Third Ventriculostomy in the Pediatric Population with Aqueductal Stenosis. World Neurosurg 2024:S1878-8750(24)01014-3. [PMID: 38901481 DOI: 10.1016/j.wneu.2024.06.056] [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: 03/25/2024] [Revised: 06/10/2024] [Accepted: 06/11/2024] [Indexed: 06/22/2024]
Abstract
OBJECTIVE To evaluate the long-term success rate of endoscopic third ventriculostomy (ETV) in the treatment of hydrocephalus due to aqueductal stenosis in the pediatric population. METHODS Between January 2007 and June 2023, a total of 82 children underwent ETV surgery for hydrocephalus and met the inclusion criteria for our study. The children's medical records were reviewed, and cases requiring additional surgery in the months and years following surgery for ventriculostomy failure were reviewed. RESULTS The mean age was 5.35 years. Successful ETV was observed in 74 children with a successful ETV rate of 90%. The median follow-up was 6.75 years (2 months to 15.5 years). Eight children (10%) underwent additional surgery. In 7 cases, additional surgery was performed within 3 months, while in the remaining case; a delayed failure was noted (more than 3 years later). At 6 months and 3 years, the cumulative proportion of children with revision-free survival was 91%, declining slightly to 89% at 5 years. CONCLUSIONS ETV is highly effective in treating hydrocephalus in pediatric patients with aqueductal stenosis, with a 91% success rate at 6 months and 3 years. Although the success rate drops slightly to 89% at 5 years, it still demonstrates durability. Late failures are usually characterized by symptoms of increased intracranial pressure. While patients with a confirmed successful ETV at 6 months may be considered for reduced follow-up frequency, it is critical to educate them about the symptoms of intracranial hypertension and the importance of seeking medical attention promptly if such symptoms occur.
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Affiliation(s)
- Víctor García-Milán
- Department of Neurological Surgery and Spine Unit, Hospital Universitario Marqués de Valdecilla, Santander, Spain.
| | - Gloria Moreno-Madueño
- Pediatric Neurosurgery Unit, Hospital Universitario Virgen del Rocío, Seville, Spain
| | | | - Mónica Rivero-Garvía
- Pediatric Neurosurgery Unit, Hospital Universitario Virgen del Rocío, Seville, Spain
| | - Javier Márquez-Rivas
- Pediatric Neurosurgery Unit, Hospital Universitario Virgen del Rocío, Seville, Spain
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Hidalgo ET, Schnurman Z, Harter DH. The Predictive Role of Early Postoperative Magnetic Resonance Imaging After Endoscopic Third Ventriculostomy. World Neurosurg 2024:S1878-8750(24)01002-7. [PMID: 38901477 DOI: 10.1016/j.wneu.2024.06.044] [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: 03/22/2024] [Accepted: 06/09/2024] [Indexed: 06/22/2024]
Abstract
OBJECTIVE Endoscopic third ventriculostomy (ETV) is a treatment option for obstructive hydrocephalus; reported success rates vary. We investigated immediate postoperative magnetic resonance imaging to evaluate the role of imaging parameters associated with outcomes. METHODS Retrospective chart review was performed on patients undergoing initial ETV between 2005 and 2019. Patients with preoperative and postoperative magnetic resonance imaging with follow-up>one year were included. The following were noted: changes in subarachnoid cerebrospinal fluid, third ventricle diameter, bowing of the third ventricle floor, and postoperative flow void. Kaplan-Meier survival methods were used to assess ETV success and univariable and multivariable Cox proportional-hazards models were fitted to assess factors contributing to ETV success. RESULTS Fifty-eight subjects were included. Nineteen (32.8%) experienced failure within one year; individually, no single imaging parameter predicted success. However, all cases of failure had no identifiable flow void. Any postoperative radiological change was not consistently associated with decreased odds of failure. Obstructive hydrocephalus treated with ETV demonstrated significantly better ETV success than patients treated with nonobstructive hydrocephalus. Interobserver reliability was moderate for 2 of the radiological variables and substantial for 1 of the radiological variables. CONCLUSIONS Individually, none of the qualitative radiologic parameters measured in our study predicted ETV success. Absence of a flow void predicted ETV failure, but additional studies are needed to determine its true negative predictive value. Inability to clarify which specific parameter predicts success reflects the limited role of immediate postoperative imaging in influencing clinical management.
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Affiliation(s)
- E Teresa Hidalgo
- NYU Grossman School of Medicine, NYU Langone Health Division of Pediatric Neurosurgery, New York, NY
| | - Zane Schnurman
- NYU Grossman School of Medicine, NYU Langone Health Division of Pediatric Neurosurgery, New York, NY
| | - David H Harter
- NYU Grossman School of Medicine, NYU Langone Health Division of Pediatric Neurosurgery, New York, NY.
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Sistiaga IL, Catalán-Uribarrena G, Pérez-Fernández S, Carrasco A, Iglesias J, Ruiz de Gopegui E, Pomposo I. Combined Predictive Model for Endoscopic Third Ventriculostomy Success in Adults and Children. World Neurosurg 2024; 185:e721-e730. [PMID: 38423458 DOI: 10.1016/j.wneu.2024.02.119] [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: 11/15/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND The selection of patients in whom endoscopic third ventriculostomy (ETV) can be effective remains poorly defined. The ETV success score (ETVSS) and the presence of bowing of the third ventricle have been identified as independent factors for predicting success, each with limitations. The objective of this study is to elaborate a combined predictive model to predict ETV success in a mixed cohort of patients. METHODS Demographic, intraoperative, postoperative, and radiologic variables were analyzed in all ventriculostomies performed consecutively at a single institution from December 2004 to December 2022. Qualitative and quantitative measurements of preoperative, immediate, and late postoperative magnetic resonance imaging were conducted. Univariate analysis and logistic regression models were performed. RESULTS 118 ETVs were performed in the selected period. Of these procedures, 106 met the inclusion criteria. The overall success rate was 71.7%, with a median follow-up of 3.64 years (interquartile range, 1.06-5.62). The median age was 36.1 years (interquartile range, 11.7-53.5). 35.84% were children (median, 7.81 years). Among the 80 patients with third ventricle bowing, the success rate was 88.8% (P < 0.001). Larger third ventricle dimensions on preoperative mid-sagittal magnetic resonance imaging were associated with increased ETV success. The model with the best receiver operating characteristic curves, with an area under the curve of 0.918 (95% confidence interval, 0.856-0.979) includes sex, ETVSS, presence of complications, and third ventricle bowing. CONCLUSIONS The presence of bowing of the third ventricle is strongly associated with a higher ETV success rate. However, a combined predictive model that integrates it with the ETVSS is the most appropriate approach for selecting patients for ETV.
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Affiliation(s)
- Iñigo L Sistiaga
- Department of Neurosurgery, University Hospital Cruces, Bilbao, Basque Country, Spain.
| | - Gregorio Catalán-Uribarrena
- Department of Neurosurgery, University Hospital Cruces, Bilbao, Basque Country, Spain; Biocruces Bizkaia Health Research Institute, Bilbao, Basque Country, Spain; Department of Surgery, Radiology and Physical Medicine, University of The Basque Country, Leioa, Basque Country, Spain
| | | | - Alejandro Carrasco
- Department of Neurosurgery, University Hospital Cruces, Bilbao, Basque Country, Spain; Biocruces Bizkaia Health Research Institute, Bilbao, Basque Country, Spain; Department of Surgery, Radiology and Physical Medicine, University of The Basque Country, Leioa, Basque Country, Spain
| | - Jone Iglesias
- Department of Neurosurgery, University Hospital Cruces, Bilbao, Basque Country, Spain
| | | | - Iñigo Pomposo
- Department of Neurosurgery, University Hospital Cruces, Bilbao, Basque Country, Spain; Biocruces Bizkaia Health Research Institute, Bilbao, Basque Country, Spain; Department of Surgery, Radiology and Physical Medicine, University of The Basque Country, Leioa, Basque Country, Spain
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Ichinose T, Hayashi Y, Sasagawa Y, Oishi M, Higashi R, Nakada M. A case of rapid deterioration in a subacute period after endoscopic third ventriculostomy. Br J Neurosurg 2024; 38:447-450. [PMID: 33605824 DOI: 10.1080/02688697.2021.1885624] [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: 08/14/2020] [Accepted: 01/28/2021] [Indexed: 10/22/2022]
Abstract
Background: Although generally a safe procedure, serious postoperative complications after endoscopic third ventriculostomy (ETV) for obstructive hydrocephaly have been rarely reported, such as delayed obstruction of the stoma at the third ventricle floor.Case description: A 20-year-old male was referred to our department because of severe headache and diplopia. A pineal tumour and obstructive hydrocephaly were detected in preoperative imaging. After tumour biopsy and ETV, the reduction of ventricle size and improvement of headaches were immediately observed. On the seventh day, however, he developed a rapidly progressing consciousness disturbance due to severe hydrocephalus leading to urgent secondary ETV. The original ventriculostomy stoma at the third ventricle floor was completely occluded by scar adhesion. The patient recovered well as previously and received additional treatment.Conclusion: Although very rare, occlusion of the ventriculostomy stoma can postoperatively occur in the subacute period. Patients undergoing ETV for obstructive hydrocephalus due to a pineal tumour should be carefully monitored to avoid serious consequences.
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Affiliation(s)
- Toshiya Ichinose
- Department of Neurosurgery, Kanazawa University, Graduate School of Medical Science, Kanazawa, Japan
| | - Yasuhiko Hayashi
- Department of Neurosurgery, Kanazawa University, Graduate School of Medical Science, Kanazawa, Japan
- Department of Neurosurgery, Kanazawa Medical University, Kahoku, Japan
| | - Yasuo Sasagawa
- Department of Neurosurgery, Kanazawa University, Graduate School of Medical Science, Kanazawa, Japan
| | - Masahiro Oishi
- Department of Neurosurgery, Kanazawa University, Graduate School of Medical Science, Kanazawa, Japan
| | - Ryo Higashi
- Department of Neurosurgery, Higashi Hospital, Komatsu, Japan
| | - Mitsutoshi Nakada
- Department of Neurosurgery, Kanazawa University, Graduate School of Medical Science, Kanazawa, Japan
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Prajsnar-Borak A, Schroeder HWS, Oertel J. Endoscopic transaqueductal stent placement for tumor-related aqueductal compression in pediatric patients: surgical consideration, technique, and results. Childs Nerv Syst 2024; 40:395-405. [PMID: 37823956 PMCID: PMC10837227 DOI: 10.1007/s00381-023-06171-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023]
Abstract
PURPOSE Endoscopic transaqueductal stenting has become a well-accepted treatment option for a selected small subset of aqueductal stenosis-related obstructive hydrocephalus. However, transaqueductal stenting poses unique challenges and risks which requires critical consideration. This report discusses the clinical experiences with transaqueductal stenting for periaqueductal tumor-related aqueductal stenosis focusing on pediatric patients. METHODS A retrospective analysis of all patients undergoing endoscopic TAS from 01/1993 to 01/2022 in the author's departments was performed. Demographic, clinical, radiological, and intraoperative endoscopic data were evaluated. All patients with AS-related occlusive hydrocephalus that was treated with TAS were analyzed and prospectively followed. Special attention has been given to providing insights into indications, surgical technique, and limitations. RESULTS Out of 28 endoscopic transaqueductal endoscopis stenting procedures, five procedures were performed on periaqueductal tumor-related obstructive hydrocephalus, two children and three adult patients. CSF pathway was obstructed by tumor located in the aqueduct in 2, by tumor in the thalamus/mesencephalon in 1, by a tumor within the third ventricle in 1, and by a tumor of the lamina tecti in 1. Simultaneously with transaqueductal stenting, 2 endoscopic third ventriculostomies (ETV), 3 tumor biopsies, and 1 tumor resection were performed. Postoperative complications included the following: CSF fistula (1 case), and asymptomatic fornix contusion (1 case). A working aqueductal stent was achieved in all cases based on clinical follow-up evaluation. Postoperatively, all patients showed improvement or resolution of their symptoms. The mean follow-up period was 25.2 months (range, 1-108 months). One patient died due to tumor progression during early follow-up. No stent migration was seen. CONCLUSION Endoscopic third ventriculostomy remains the gold standard for treatment of CSF circulation obstructions with lesions in the posterior third ventricle and aqueduct. Transaqueductal stenting for periaqueductal tumor-related aqueductal compression is technically feasible. However, because of the potential high risks and subtle advantages compared with ETV transaqueductal stenting, it might be indicated in a small subset of well-selected patients if alternative treatment options are not at hand.
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Affiliation(s)
- Anna Prajsnar-Borak
- Department of Neurosurgery, Saarland University Medical Center, and, Faculty of Medicine, University of Saarland, Kirrbergerstraße, Building 90.5, D-66421, Homburg, Germany
| | - Henry W S Schroeder
- Department of Neurosurgery, Ernst Moritz Arndt University, Greifswald, Germany
| | - Joachim Oertel
- Department of Neurosurgery, Saarland University Medical Center, and, Faculty of Medicine, University of Saarland, Kirrbergerstraße, Building 90.5, D-66421, Homburg, Germany.
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Niedermeyer S, Terpolilli NA, Nerlinger P, Weller J, Schmutzer M, Quach S, Thon N. Minimally invasive third ventriculostomy with stereotactic internal shunt placement for the treatment of tumor-associated noncommunicating hydrocephalus. Acta Neurochir (Wien) 2023; 165:4071-4079. [PMID: 37676505 PMCID: PMC10739544 DOI: 10.1007/s00701-023-05768-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 08/11/2023] [Indexed: 09/08/2023]
Abstract
BACKGROUND Intracranial tumors can cause obstructive hydrocephalus (OH). Most often, symptomatic treatment is pursued through ventriculoperitoneal shunt (VS) or endoscopic third ventriculostomy (ETV). In this study, we propose stereotactic third ventriculostomy with internal shunt placement (sTVIP) as an alternative treatment option and assess its safety and efficacy. METHODS In this single-center, retrospective analysis, clinical symptoms, procedure-related complications, and revision-free survival of all patients with OH due to tumor formations treated by sTVIP between January 2010 and December 2021 were evaluated. RESULTS Clinical records of thirty-eight patients (11 female, 27 male) with a mean age of 40 years (range 5-88) were analyzed. OH was predominantly (in 92% of patients) caused by primary brain tumors (with exception of 3 cases with metastases). Following sTVIP, 74.2% of patients experienced symptomatic improvement. Preoperative headache was a significant predictor of postoperative symptomatic improvement (OR 26.25; 95% CI 4.1-521.1; p = 0.0036). Asymptomatic hemorrhage was detected along the stereotactic trajectory in 2 cases (5.3%). One patient required local revision due to CSF fistula (2.6%); another patient had to undergo secondary surgery to connect the catheter to a valve/abdominal catheter due to CSF malabsorption. However, in the remaining 37 patients, shunt independence was maintained during a median follow-up period of 12 months (IQR 3-32 months). No surgery-related mortality was observed. CONCLUSIONS sTVIP led to a significant symptom control and was associated with low operative morbidity, along with a high rate of ventriculoperitoneal shunt independency during the follow-up period. Therefore, sTVIP constitutes a highly effective and minimally invasive treatment option for tumor-associated obstructive hydrocephalus, even in cases with a narrow prepontine interval.
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Affiliation(s)
- Sebastian Niedermeyer
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany.
| | - Nicole A Terpolilli
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Pia Nerlinger
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Jonathan Weller
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Michael Schmutzer
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Stefanie Quach
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
| | - Niklas Thon
- Department of Neurosurgery, LMU Hospital, Ludwig-Maximilian-University Munich, Marchioninistrasse 15, 81377, Munich, Germany
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Goel A, Galloway L, Abualsaud S, Chowdhury Y, Gan P, Flint G, Tsermoulas G. Factors affecting endoscopic third ventriculostomy success in adults. Acta Neurochir (Wien) 2023; 165:4021-4029. [PMID: 38017131 DOI: 10.1007/s00701-023-05882-2] [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: 09/27/2023] [Accepted: 10/26/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND Endoscopic third ventriculostomy (ETV) is a standard treatment in hydrocephalus of certain aetiologies. The most widely used predictive model is the ETV success score. This is frequently used to predict outcomes following ETV in adult patients; however, this was a model developed in paediatric patients with often distinct aetiologies of hydrocephalus. The aim of this study was to assess the predictive value of the model and to identify factors that influence ETV outcomes in adults. METHODS A retrospective study design was used to analyse consecutive patients who underwent ETV at a tertiary neurosurgical centre between 2012 and 2020. Observed ETV outcomes at 6 months were compared to pre-operative predicted ETV success scores. A multivariable Bayesian logistic regression analysis was used to determine the factors that best predicted ETV success and those factors that were redundant. RESULTS A total of 136 patients were analysed during the 9-year study. Thirty-one patients underwent further cerebrospinal fluid diversion within 6 months. The overall ETV success rate was 77%. Observed ETV outcomes corresponded well with predicted outcomes using the ETV success score for the higher scores, but less well for lower scores. Location of obstruction at the aqueduct irrespective of aetiology was the best predictor of success with odds of 1.65 of success. Elective procedures were also associated with higher success compared to urgent ones, whereas age under 70, nature and location of obstructive lesion (other than aqueductal) did not influence ETV success. CONCLUSION ETV was successful in three-quarters of adult patient with hydrocephalus within 6 months. Obstruction at the level of the aqueduct of any aetiology was a good predictor of ETV success. Clinicians should bear in mind that adult hydrocephalus responds differently to ETV compared to paediatric hydrocephalus, and more research is required to develop and validate an adult-specific predictive tool.
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Affiliation(s)
- Aimee Goel
- Department of Neurosurgery, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, UK.
| | - Luke Galloway
- Department of Neurosurgery, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, UK
| | - Suhaib Abualsaud
- Department of Neurosurgery, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, UK
| | - Yasir Chowdhury
- Department of Neurosurgery, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, UK
| | - Peter Gan
- Department of Neurosurgery, Waikato Hospital, Hamilton, New Zealand
| | - Graham Flint
- Department of Neurosurgery, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, UK
| | - Georgios Tsermoulas
- Department of Neurosurgery, University Hospitals Birmingham NHS Foundation Trust, Edgbaston, Birmingham, UK
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Haq NU, Shah I, Ishaq M, Khan M. Outcomes of Endoscopic Third Ventriculostomy in Pediatric Patients With Hydrocephalus. Cureus 2022; 14:e26608. [PMID: 35936164 PMCID: PMC9355066 DOI: 10.7759/cureus.26608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2022] [Indexed: 12/02/2022] Open
Abstract
Background Endoscopic third ventriculostomy (ETV) is used to treat patients with obstructive hydrocephalus in infants. This study evaluated the postoperative outcomes of ETV among pediatric patients. Methodology A retrospective study was undertaken at the Mardan Medical Complex between June 2018 and June 2021. All pediatric patients who underwent the procedure of ETV in both the absence and presence of choroid plexus cauterization (CPC) at our center were included in the study. Using medical history data, a comprehensive survey questionnaire was designed. The findings and effects were evaluated either as a success or failure. Results A total of 90 cases were reviewed during the study. The rate of in-hospital mortality was 1.1% while the most commonly identified causes of hydrocephalus were myelomeningocele and aqueductal stenosis. A total of 39 (43.33%) patients had a successful surgery. In patients where hydrocephalus was secondary to aqueductal stenosis, the success rate was the highest, while the success rate was quite low for post-infectious hydrocephalus and intraventricular hemorrhage (p < 0.0001). The postoperative complication rate was 55.56% in our study. The rate of in-hospital mortality was 1.1%. Conclusions We found that the success rate of ETV was dependent upon factors such as the cause of hydrocephalus, type of hydrocephalus, and the age of the patient. Therefore, ETV is not suitable for all patients, and vigilance must be undertaken in selecting patients for the procedure. The rate of postoperative infections in our institution was alarmingly high which is a concerning matter for the institution.
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Lane J, Akbari SHA. Failure of Endoscopic Third Ventriculostomy. Cureus 2022; 14:e25136. [PMID: 35733459 PMCID: PMC9205383 DOI: 10.7759/cureus.25136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 05/10/2022] [Indexed: 11/30/2022] Open
Abstract
Endoscopic third ventriculostomy (ETV) is an alternative to cerebrospinal fluid (CSF) shunting in the treatment of hydrocephalus. Careful patient selection is critical as patient age, etiology of hydrocephalus, and previous shunting have been shown to influence ETV success rates. Intraoperatively, patient anatomy and medical stability may prevent or limit the completion of the ventriculostomy procedure, and findings such as a patulous third ventricular floor or cisternal scarring may portend a lower chance of successful hydrocephalus treatment. Patients in whom a ventriculostomy is completed may still experience continued symptoms of hydrocephalus or CSF leak, representing an early ETV failure. In other patients, the ETV may prove a durable treatment of hydrocephalus for several months or even years before recurrence of hydrocephalus symptoms. The failure pattern for ETV is different than that of shunting, with a higher early failure rate but improved long-term failure-free survival rates. The risk factors for failure, along with the presentation and management of failure, deserve review.
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Martinoni M, Miccoli G, Riccioli LA, Santoro F, Bertolini G, Zenesini C, Mazzatenta D, Conti A, Cavallo LM, Palandri G. Idiopathic Aqueductal Stenosis: Late Neurocognitive Outcome in ETV Operated Adult Patients. Front Neurol 2022; 13:806885. [PMID: 35463152 PMCID: PMC9021920 DOI: 10.3389/fneur.2022.806885] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectiveThe aim of the present study is to evaluate a neurocognitive outcome in patients affected by late-onset idiopathic aqueductal stenosis (LIAS) who underwent endoscopic third ventriculostomy (ETV).Materials and MethodsA prospective study was conducted between January 2015 and December 2017 in a series of 10 consecutive adult patients referred to the Neurosurgery Department of IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy. All the adult patients admitted with absence of CSF flow through the aqueduct in phase-contrast (PC)—MRI sequences or a turbulence void signal in T2—weighted images in midsagittal thin-slice MR sequences underwent a specific neuroradiological, neurological, and neurocognitive assessment pre- and postoperatively.ResultsAll patients affected by gait and sphincter disturbances improved after ETV. Attentive and executive functions as well as visuo-spatial memory and verbal executive functions improved in several patients. Similarly, the affective and behavioral scales improved in almost 50% of the patients. No major complications have been recorded, and no patients required a second surgery for shunt placement.ConclusionEndoscopic third ventriculostomy represents a safe and effective surgical procedure for the treatment of LIAS. In addition to neurological improvement, we demonstrated also postoperative neurocognitive improvement mainly in attentive and executive functions, visuo-spatial memory, verbal executive functions, and behavioral and affective domains.
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Affiliation(s)
- Matteo Martinoni
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Giovanni Miccoli
- Department of Neuroscience and Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy
- *Correspondence: Giovanni Miccoli
| | - Luca Albini Riccioli
- Neuroradiology Unit, IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Francesca Santoro
- Neurology Unit, IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Giacomo Bertolini
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Corrado Zenesini
- Epidemiology and Biostatistics Service, IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Diego Mazzatenta
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Alfredo Conti
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Luigi Maria Cavallo
- Department of Neuroscience and Reproductive and Odontostomatological Sciences, University of Naples Federico II, Naples, Italy
| | - Giorgio Palandri
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
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Faquini IV, Fonseca RB, Correia AO, Cezar Junior AB, De Carvalho Junior EV, de Almeida NS, Azevedo-Filho HRC. Endoscopic third ventriculostomy in the treatment of hydrocephalus: A 20-year retrospective analysis of 209 consecutive cases. Surg Neurol Int 2021; 12:383. [PMID: 34513150 PMCID: PMC8422502 DOI: 10.25259/sni_458_2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 07/02/2021] [Indexed: 11/04/2022] Open
Abstract
Background Endoscopic third ventriculostomy (ETV) has been shown to be a sufficient alternative to shunts in surgical treatment of obstructive hydrocephalus. Long-term failure, age limitations, and outcome by cause are some of the issues debated in literature. The objective of this article is to analyze the clinical success and failure of ETV and its main complications. Methods A total of 209 patients with hydrocephalus were submitted to ETV, including a mixed population of children and adults (from 0 to 59 years). Patients were divided into five groups: A - tumors, B - aqueductal stenosis, C - myelomeningocele, D - infection and hemorrhage, and E - arachnoid cyst. Variables were analyzed: age, ETV success rate, cerebrospinal fluid (CSF) fistula, mortality, and complications. Results The two main causes of hydrocephalus were tumors (44.9%) and aqueductal stenosis (25.3%). The overall success rate was of 82.8%, and patients in Group E had the highest rate 90.9%. Group A had a success rate of 89.3%, and Group B had a rate of 88.6%. The ETV success rate was significantly higher in patients older than 1 year (P < 0.001); the former also had a lower risk of CSF fistula (P < 0.0001). The overall mortality rate was 2.8%. Conclusion Better results were observed in the groups of patients with tumors, aqueductal stenosis, and arachnoid cysts, while those whose primary causes of hydrocephalus were myelomeningocele, infections, or bleeding had higher rates of failure after the procedure. This study demonstrated that age under 1 year and hydrocephalus caused by myelomeningocele, bleeding, and infection were considered independent risk factors of poor prognosis in ETV.
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Affiliation(s)
- Igor Vilela Faquini
- Department of Pediatric Neurosurgery, Instituto Materno Infantil Professor Fernando Figueira-IMIP and Department of Neurosurgery, Hospital da Restauracao, Recife, Brazil
| | | | | | - Auricelio Batista Cezar Junior
- Department of Pediatric Neurosurgery, Instituto Materno Infantil Professor Fernando Figueira-IMIP and Department of Neurosurgery, Hospital da Restauracao, Recife, Brazil
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Hydrocephalus Caused by Primary Fourth Ventricle Outlet Obstruction: Our Experience and Literature Review. World Neurosurg 2021; 148:e425-e435. [PMID: 33444837 DOI: 10.1016/j.wneu.2021.01.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/01/2021] [Accepted: 01/02/2021] [Indexed: 11/20/2022]
Abstract
OBJECTIVE Primary fourth ventricle outlet obstruction (PFVOO) is a rare cause of hydrocephalus with an unclear etiopathogenesis, and thus, consensus regarding the recommended treatment protocol is lacking. This study aims to summarize current knowledge of this condition in the light of our own treatment experience. METHODS Retrospective analysis was carried out of all patients treated for noncommunicating tetraventricular hydrocephalus between 2006 and 2019, from which a subgroup of patients with PFVOO was created. A literature review of PFVOO cases was also carried out. RESULTS A total of 62 patients with PFVOO were discovered, of whom 8 were treated at our institution, representing 3.8% of our patients with noncommunicating hydrocephalus. Patients most commonly presented with headaches, gait disturbance, or symptoms of intracranial hypertension. The mean follow-up duration was 75.4 months among our patients and 29.9 months in the literature. Most patients (54.8%) were treated by endoscopic third ventriculostomy (ETV), with the remainder undergoing suboccipital craniotomy alone (17.7%) or in combination with shunt surgery (9.7%), or endoscopic magendieplasty (12.9%). Treatment failure was noted in 28.6% of ETVs and 9% of craniotomies. No failures were recorded after endoscopic magendieplasty. The risk of treatment failure was found to be significantly higher with ETV compared with other treatment modalities (P < 0.0005). CONCLUSIONS Despite the fact that PFVOO can be defined as an obstructive hydrocephalus, there seems to be a higher risk of ETV failure in such cases. The alternative treatment modalities presented are still recommended. Confirmation of these findings requires a larger multicenter study.
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External validation of the ETV success score in 313 pediatric patients: a Brazilian single-center study. Neurosurg Rev 2021; 44:2727-2734. [PMID: 33389340 DOI: 10.1007/s10143-020-01461-6] [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: 06/09/2020] [Revised: 11/23/2020] [Accepted: 12/10/2020] [Indexed: 10/22/2022]
Abstract
The endoscopic third ventriculostomy (ETV) success score (ETVSS) was developed to predict the success rate of ETV at 6 months. In this study, the authors assessed the performance of this score for > 6 months, i.e., at 12 months, and provided external validation in Brazilian children. All children undergoing first ETV (without choroid plexus cauterization) at a Brazilian single institution for > 20 years were included in the study. The ETVSS was retrospectively calculated for each patient and compared with the actual success of the procedure observed at 6 and 12 months after the procedure. A total of 313 eligible children underwent initial ETV, 34.18% of whom had undergone shunt placement before ETV. The most common etiologies were aqueductal stenosis (45%) and non-tectal brain tumors (20.8%). ETV was successful at 6 months in 229 patients (73.16%) compared with the 61.3% predicted by the ETVSS. The overall actual success rate observed at 1 year after ETV was 65.1% (204 patients). The area under the receiver operating characteristic curve was 0.660 at 6 months and 0.668 at 1 year, which suggested a tendency for the ETVSS to underestimate the actual success rate of ETV at both timepoints. The ETVSS showed good success prediction in accordance with the actual ETV success rate and proved to be useful during the decision-making process of ETV.
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15
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Gutierrez-Aceves GA, Rodriguez-Camacho A, Celis-Lopez MA, Moreno-Jimenez S, Herrera-Gonzalez JA. Frameless radiosurgical third ventriculostomy: Technical report. Surg Neurol Int 2020; 11:398. [PMID: 33282458 PMCID: PMC7710479 DOI: 10.25259/sni_247_2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 10/23/2020] [Indexed: 11/28/2022] Open
Abstract
Background: We describe the technical report and results of the first image-guided, linear accelerator, frameless radiosurgical third ventriculostomy. Methods: We report a 20 years old man, with diplopia, balance disturbances, and limitation for gaze supraversion. Magnetic resonance imaging resonance imaging of the brain and cranial computed tomography showed showed a left thalamic-midbrain lesion that caused partial compression of the Silvio aqueduct and mild ventricular dilatation. The biopsy revealed the diagnosis of pleomorphic xanthoastrocytoma. Before radical treatment of the tumor with fractionated stereotactic radiotherapy, the patient underwent to frameless radiosurgical third ventriculostomy, on the TrueBeam STX® platform with the ExacTrac localization system. The target used was the one defined on the floor of the third ventricle, at the midpoint between the mammillary bodies and the infundibular recess. The prescription dose was 120 Gy, given using a monoisocentric technique of multiple noncoplanar circular arches. The geometric arrangement of the plan consisted of 15 arches, with a 4 mm cone, distributed over a 110° table. Results: There was symptomatic and image improvement two days after radiosurgery. On CT, a reduction in ventricular dilation was observed with a reduction in the Evans index from 0.39 (initial CT) to 0.29 (CT at 15 days). In 3.0T magnetic resonance image at 3 months, we showed the third ventriculostomy. There have been no treatment failures or complications. Conclusion: It is possible to effectively perform the frameless radiosurgical third ventriculostomy without associated morbidity in the short term.
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Affiliation(s)
| | - Alejandro Rodriguez-Camacho
- Radio Neurosurgery Unit, National Institute of Neurology and Neurosurgery "Dr. Manuel Velasco Suarez", Mexico City, Mexico
| | - Miguel Angel Celis-Lopez
- Radio Neurosurgery Unit, National Institute of Neurology and Neurosurgery "Dr. Manuel Velasco Suarez", Mexico City, Mexico
| | - Sergio Moreno-Jimenez
- Radio Neurosurgery Unit, National Institute of Neurology and Neurosurgery "Dr. Manuel Velasco Suarez", Mexico City, Mexico
| | - Jose Alfredo Herrera-Gonzalez
- Radio Neurosurgery Unit, National Institute of Neurology and Neurosurgery "Dr. Manuel Velasco Suarez", Mexico City, Mexico
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16
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Gorgoglione N, Fazzari E, Alafaci C, Vitulli F, Zaccaria R, Angileri FF, Germanò A, Esposito F. An Unusual But Possible Complication After Endoscopic Third Ventriculostomy. World Neurosurg 2020; 146:287-291. [PMID: 33276175 DOI: 10.1016/j.wneu.2020.11.149] [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: 04/15/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND We present an unusual but possible complication after ETV for the treatment of acute hydrocephalus due to malfunction of a previously implanted V-P shunt. CASE DESCRIPTION A 12-year-old male patient was urgently operated upon by means of an endoscopic third-ventriculostomy and the positioning of a temporary external ventricular catheter because of the malfunction of a previously implanted V-P shunt; immediately after the operation, the tip of the external catheter caused an obstruction of the ostomy, which was resolved with the withdrawn of catheter for circa 1 cm, left closed and ultimately removed after 4 days. The patient did not present any further symptom and remained shunt-free at the last 2-year follow-up visit. CONCLUSIONS One should consider such occurrence in cases of early ETV failure when a ventricular catheter is left in situ, even though temporarily.
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Affiliation(s)
- Nicola Gorgoglione
- Division of Neurosurgery, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy
| | - Elena Fazzari
- Division of Neurosurgery, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy
| | - Concetta Alafaci
- Division of Neurosurgery, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy
| | - Francesca Vitulli
- Division of Neurosurgery, Department of Neurosciences and Reproductive and Dental Sciences, Federico II University of Naples, Napoli, Italy
| | - Rossella Zaccaria
- Division of Neurosurgery, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy
| | - Filippo F Angileri
- Division of Neurosurgery, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy
| | - Antonino Germanò
- Division of Neurosurgery, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy
| | - Felice Esposito
- Division of Neurosurgery, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy; Division of Neurosurgery, Department of Neurosciences and Reproductive and Dental Sciences, Federico II University of Naples, Napoli, Italy.
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17
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Transient diabetes insipidus post endoscopic third ventriculostomy: Case report and literature review. INTERDISCIPLINARY NEUROSURGERY 2020. [DOI: 10.1016/j.inat.2020.100676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Luther E, McCarthy D, Sedighim S, Niazi T. Endoscopic third ventriculostomy inpatient failure rates compared with shunting in post-hemorrhagic hydrocephalus of prematurity. Childs Nerv Syst 2020; 36:559-568. [PMID: 31863148 DOI: 10.1007/s00381-019-04465-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 12/04/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE Endoscopic third ventriculostomy (ETV) has gained traction as a method for treating post-hemorrhagic hydrocephalus of prematurity (PHHP) in an effort to obviate lifelong shunt dependence in neonates. However, data remains limited regarding inpatient failures. METHODS A retrospective analysis of the NIS between 1998 and 2014 was performed. Discharges with age < 1 year and ICD-9-CM codes indicating intraventricular hemorrhage of prematurity (772.1x) and ETV/shunt (02.22 and 02.3x) were included. Patients with ICD-9-CM codes for ventricular drain/reservoir (02.21) were excluded to prevent confounding. Time trend series plots were created. Yearly trends were quantified using logarithmic regression analysis. Kaplan-Meier curves were utilized to analyze time to treatment failure. Time to failure for each treatment was compared using log-rank. RESULTS A total of 11,017 discharges were identified. ETV was more likely to be utilized at < 29 weeks gestational age (p = 0.0039) and birth weight < 1000 g (p = 0.0039). Shunts were less likely to fail in older and heavier newborns (OR 0.836 p = 0.00456, OR 0.828 p = 0.0001, respectively). Those initially shunted had lower failure rates compared with ETV (OR 0.44, p < 0.0001) but time to failure was longer with ETV (p = 0.04562). 79.5% of ETVs that failed were shunted after the first failure. Shunts were much less likely to undergo ETV if they failed (OR 0.21, p < 0.0001). Higher grade IVH was predictive of shunt failure but not ETV (OR 2.36, p = 0.0129). CONCLUSIONS Although ETV can be effective in PHHP, it has a much higher initial failure rate than shunting and should thus be chosen based on a multifactorial approach.
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Affiliation(s)
- Evan Luther
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 2nd floor, 1095 NW 14th Terrace, Miami, FL, 33136, USA.
| | - David McCarthy
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 2nd floor, 1095 NW 14th Terrace, Miami, FL, 33136, USA
| | - Shaina Sedighim
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 2nd floor, 1095 NW 14th Terrace, Miami, FL, 33136, USA
| | - Toba Niazi
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Lois Pope Life Center, 2nd floor, 1095 NW 14th Terrace, Miami, FL, 33136, USA.,Department of Neurological Surgery, Nicklaus Children's Hospital, Miami, FL, USA
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19
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Krejčí T, Krejčí O, Večeřa Z, Chlachula M, Šalounová D, Lipina R. The role of third ventricle bowing in the success of endoscopic third ventriculostomy in pediatric and adult patients. Clin Neurol Neurosurg 2019; 187:105554. [DOI: 10.1016/j.clineuro.2019.105554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/29/2019] [Accepted: 10/06/2019] [Indexed: 11/24/2022]
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20
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Hersh DS, Dave P, Weeks M, Hankinson TC, Karimian B, Staulcup S, Van Poppel MD, Wait SD, Vaughn BN, Klimo P. Converting Pediatric Patients and Young Adults From a Shunt to a Third Ventriculostomy: A Multicenter Evaluation. Neurosurgery 2019; 87:285-293. [DOI: 10.1093/neuros/nyz478] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 08/18/2019] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Endoscopic third ventriculostomy (ETV) is an effective primary treatment for certain forms of hydrocephalus. However, its use in children with an existing shunt is less well known.
OBJECTIVE
To report a multicenter experience in attempting to convert patients from shunt dependence to a third ventriculostomy and to determine predictors of success.
METHODS
Three participating centers provided retrospectively collected information on patients with an attempted conversion from a shunt to an ETV between December 1, 2008, and April 1, 2018. Demographic, clinical, and radiological data were recorded. Success was defined as shunt independence at the last follow-up.
RESULTS
Eighty patients with an existing ventricular shunt underwent an ETV. The median age at the time of the index ETV was 9.9 yr, and 44 (55%) patients were male. The overall success rate was 64% (51/80), with a median duration of follow-up of 2.0 yr (range, 0.1-9.4 yr). Four patients required a successful repeat ETV at a median of 1.7 yr (range, 0.1-5.7 yr) following the index ETV. Only age was predictive of ETV failure on multivariate analysis (odds ratio 0.86 [95% CI 0.78-0.94], P = .005). No patient less than 6 mo of age underwent an ETV, and of the 5 patients between 6 and 12 mo of age, 4 failed.
CONCLUSION
Although not every shunted patient will be a candidate for an ETV, nor will they be successfully converted, an ETV should at least be considered in every child who presents with a shunt malfunction or who has an externalized shunt.
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Affiliation(s)
- David S Hersh
- Department of Neurosurgery, The University of Tennessee Health Science Center, The University of Tennessee, Memphis, Tennessee
| | | | | | - Todd C Hankinson
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, Colorado
- Children's Hospital Colorado, Aurora, Colorado
| | - Brandon Karimian
- Carolina Neurosurgery and Spine Associates, Charlotte, North Carolina
| | - Susan Staulcup
- Department of Neurosurgery, Anschutz Medical Campus, University of Colorado, Aurora, Colorado
- Children's Hospital Colorado, Aurora, Colorado
| | - Mark D Van Poppel
- Carolina Neurosurgery and Spine Associates, Charlotte, North Carolina
- Levine Children's Hospital, Charlotte, North Carolina
| | - Scott D Wait
- Carolina Neurosurgery and Spine Associates, Charlotte, North Carolina
- Levine Children's Hospital, Charlotte, North Carolina
| | | | - Paul Klimo
- Department of Neurosurgery, The University of Tennessee Health Science Center, The University of Tennessee, Memphis, Tennessee
- Le Bonheur Children's Hospital, Memphis, Tennessee
- Semmes Murphey Clinic, Memphis, Tennessee
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21
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Massimi L, Pennisi G, Frassanito P, Tamburrini G, Di Rocco C, Caldarelli M. Chiari type I and hydrocephalus. Childs Nerv Syst 2019; 35:1701-1709. [PMID: 31227858 DOI: 10.1007/s00381-019-04245-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 05/30/2019] [Indexed: 02/07/2023]
Abstract
PURPOSE The association between Chiari type I malformation (CIM) and hydrocephalus raises a great interest because of the still unclear pathogenesis and the management implications. The goal of this paper is to review the theories on the cause-effect mechanisms of such a relationship and to analyze the results of the management of this condition. METHODS A review of the literature has been performed, focusing on the articles specifically addressing the problem of CIM and hydrocephalus and on the series reporting about its treatment. Also, the personal authors' experience is briefly discussed. RESULTS As far as the pathogenesis is concerned, it seems clear that raised intracranial pressure due to hydrocephalus can cause a transient and reversible tonsillar caudal ectopia ("pressure from above" hypothesis), which is something different from CIM. A "complex" hypothesis, on the other hand, can explain the occurrence of hydrocephalus and CIM because of the venous engorgement resulting from the hypoplasia of the posterior cranial fossa (PCF) and the occlusion of the jugular foramina, leading to cerebellar edema (CIM) and CSF hypo-resorption (hydrocephalus). Nevertheless, such a mechanism can be advocated only in a minority of cases (syndromic craniosynostosis). In non-syndromic CIM subjects, the presence of hydrocephalus could be explained by an occlusion of the basal CSF pathways, which would occur completely in a minority of cases (only 7-10% of CIM patients show hydrocephalus) while it would be partial in the remaining cases (no hydrocephalus). This hypothesis still needs to be demonstrated. As far as the management is concerned, the strategy to treat the hydrocephalus first is commonly accepted. Because of the "obstructive" origin of CIM-related hydrocephalus, the use of endoscopic third ventriculostomy (ETV) is straightforward. Actually, the analysis of the literature, concerning 63 cases reported so far, reveals very high success rates of ETV in treating hydrocephalus (90.5%), CIM (78.5%), and syringomyelia symptoms (76%) as well as in giving a radiological improvement of both CIM (74%) and syringomyelia (89%). The failures of ETV were not attributable to CIM or syringomyelia. Only 11% of cases required PCF decompression after ETV. CONCLUSIONS The association between CIM and hydrocephalus probably results from different, multifactorial, and not yet completely understood mechanisms, which place the affected patients in a peculiar subgroup among those constituting the heterogeneous CIM population. ETV is confirmed as the best first approach for this subset of patients.
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Affiliation(s)
- Luca Massimi
- Fondazione Policlinico Gemelli IRCCS, Neurochirurgia Infantile, Roma, Italy.
- Istituto di Neurochirurgia, Università Cattolica del Sacro Cuore, Roma, Italy.
- International Neuroscience Institute, Hannover, Germany.
| | - Giovanni Pennisi
- Istituto di Neurochirurgia, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Paolo Frassanito
- Istituto di Neurochirurgia, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Gianpiero Tamburrini
- Fondazione Policlinico Gemelli IRCCS, Neurochirurgia Infantile, Roma, Italy
- Istituto di Neurochirurgia, Università Cattolica del Sacro Cuore, Roma, Italy
| | | | - Massimo Caldarelli
- Fondazione Policlinico Gemelli IRCCS, Neurochirurgia Infantile, Roma, Italy
- Istituto di Neurochirurgia, Università Cattolica del Sacro Cuore, Roma, Italy
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McLone D, Frim D, Penn R, Swisher CN, Heydemann P, Boyer KM, Noble AG, Rabiah PK, Withers S, Wroblewski K, Karrison T, Hutson S, Wheeler K, Cohen W, Lykins J, McLeod R. Outcomes of hydrocephalus secondary to congenital toxoplasmosis. J Neurosurg Pediatr 2019; 24:601-608. [PMID: 31491752 DOI: 10.3171/2019.6.peds18684] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 06/10/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Hydrocephalus occurs in children with congenital toxoplasmosis and can lead to severe disability. In these cases, the decision to intervene is often influenced by the expectation of neurological recovery. In this study, clinical responses to neurosurgical intervention in children with hydrocephalus secondary to congenital toxoplasmosis are characterized. METHODS Sixty-five participants with hydrocephalus due to congenital Toxoplasma gondii infection were evaluated as part of the National Collaborative Chicago-based Congenital Toxoplasmosis Study, and their neuroradiographic findings were reviewed. Clinical outcomes were scored on the basis of cognition and motor skills through the use of IQ scores and Gross Motor Function Classification System (GMFCS) level. Outcomes were then analyzed in relation to approach to management, anatomy of hydrocephalus, and time from diagnosis of hydrocephalus to surgical intervention. RESULTS There was considerable variation in the outcomes of patients whose hydrocephalus was treated in early life, ranging from normal cognitive and motor function to profound developmental delay and functional limitation. Of the 65 participants included in the study, IQ and GMFCS level were available for 46 (70.8%). IQ and motor score were highly correlated (r = -0.82, p < 0.001). There were people with differing patterns of hydrocephalus or thickness of cortical mantle on initial presentation who had favorable outcomes. Time to neurosurgical intervention data were available for 31 patients who underwent ventriculoperitoneal (VP) shunt placement. Delayed shunt placement beyond 25 days after diagnosis of hydrocephalus was associated with greater cognitive impairment (p = 0.02). Motor impairment also appeared to be associated with shunt placement beyond 25 days but the difference did not achieve statistical significance (p = 0.13). Among those with shunt placement within 25 days after diagnosis (n = 19), the mean GMFCS level was 1.9 ± 1.6 (range 1-5). Five (29.4%) of 17 of these patients were too disabled to participate in formal cognitive testing, after excluding 2 patients with visual difficulties or language barriers that precluded IQ testing. Of the patients who had VP shunt placement 25 or more days after diagnosis (n = 12), the mean GMFCS level was 2.7 ± 1.4 (range 1-4). Of these, 1 could not participate in IQ testing due to severe visual difficulties and 8 (72.7%) of the remaining 11 due to cognitive disability. CONCLUSIONS VP shunt placement in patients with hydrocephalus caused by congenital toxoplasmosis can contribute to favorable clinical outcomes, even in cases with severe hydrocephalus on neuroimaging. Shunt placement within 25 days of diagnosis was statistically associated with more favorable cognitive outcomes. Motor function appeared to follow the same pattern although it did not achieve statistical significance.
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Affiliation(s)
- David McLone
- 1Northwestern University and Lurie Children's Hospital and Medical Center, Chicago
| | | | - Richard Penn
- 3Department of Bioengineering, College of Engineering, College of Medicine, University of Illinois at Chicago
| | - Charles N Swisher
- 1Northwestern University and Lurie Children's Hospital and Medical Center, Chicago
| | - Peter Heydemann
- 4Department of Pediatrics, Rush University Medical Center, Chicago
| | - Kenneth M Boyer
- 4Department of Pediatrics, Rush University Medical Center, Chicago
| | - A Gwendolyn Noble
- 1Northwestern University and Lurie Children's Hospital and Medical Center, Chicago
| | | | | | | | | | | | | | | | - Joseph Lykins
- 8Pritzker School of Medicine, The University of Chicago
| | - Rima McLeod
- 6Department of Ophthalmology and Visual Science
- 9Department of Pediatrics (Infectious Diseases), Institute of Genomics, Genetics, and Systems Biology, Global Health Center, Toxoplasmosis Center, CHeSS, The College, The University of Chicago, Illinois
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23
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Thomale UW, Schulz M. Letter to the Editor. Management of pediatric temporosylvian arachnoid cysts. J Neurosurg Pediatr 2019; 24:478-479. [PMID: 31277056 DOI: 10.3171/2019.4.peds19211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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24
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Abbassy M, Aref K, Farhoud A, Hekal A. The supracerebellar infratentorial approach in pineal region tumors: Technique and outcome in an underprivileged setting. ALEXANDRIA JOURNAL OF MEDICINE 2019. [DOI: 10.1016/j.ajme.2018.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
| | - Khaled Aref
- Neurosurgery Department, Alexandria University, Egypt
| | - Ahmed Farhoud
- Neurosurgery Department, Alexandria University, Egypt
| | - Anwar Hekal
- Neurosurgery Department, Alexandria University, Egypt
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25
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Guida L, Roux FE, Massimino M, Marras CE, Sganzerla E, Giussani C. Safety and efficacy of Endoscopic Third Ventriculostomy in Diffuse Intrinsic Pontine Glioma related hydrocephalus: a Systematic Review. World Neurosurg 2018; 124:S1878-8750(18)32919-X. [PMID: 30599251 DOI: 10.1016/j.wneu.2018.12.096] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/10/2018] [Accepted: 12/11/2018] [Indexed: 10/27/2022]
Abstract
OBJECT Diffuse Intrinsic Pontine Gliomas (DIPG) related hydrocephalus occurs as the result of tumor growth and Aqueduct obstruction. There is no consensus about the best surgical option, thus a review has been performed to clarify the rate of success, complications and possible issues of Endoscopic Third Ventriculostomy (ETV) in comparison to the other available techniques. METHODS This systematic review followed the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) statement and it was registered with the PROSPERO International Prospective Register of Systematic Reviews(CRD42018089001). MEDLINE, Web of Knowledge and EMBASE were searched for published series in which ETV was performed to treat hydrocephalus in DIPG patients. RESULTS Six studies were included. Two further cases coming from our experience were added, for a total amount of 55 patients treated through either ETV, VPS or Ventriculocisternal shunt according to Torkildsen. 86% of patients who underwent ETV experienced clinical improvement after surgery (p-value 0.03). Torkildsen shunt placement was associated to 50% failure rate. Two patients implanted with VPS developed symptoms of shunt malfunction and increased ventricular sizes (10%). Fisher's exact test was applied to compare efficacy of VPS and ETV with no statistical difference between the two group (p-value 0,17). Patients who underwent ETV did not experienced major complications and no procedural abortion was observed. CONCLUSIONS ETV is an effective and safe treatment option, associated to a low complications rate and a high success rate. Evidences from this review suggest to consider ETV as the first line treatment of hydrocephalus in DIPG patients.
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Affiliation(s)
- Lelio Guida
- Neurosurgery, Università degli studi di Milano Bicocca, School of Medicine, Ospedale San Gerardo, Monza Italy
| | - Frank-Emmanuel Roux
- Pôle Neuroscience (Neurochirurgie), Centre Hospitalo-Universitaire de, Toulouse, Université de Toulouse, UPS, France
| | - Maura Massimino
- Pediatric Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Carlo E Marras
- Neurosurgery, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Erik Sganzerla
- Neurosurgery, Università degli studi di Milano Bicocca, School of Medicine, Ospedale San Gerardo, Monza Italy
| | - Carlo Giussani
- Neurosurgery, Università degli studi di Milano Bicocca, School of Medicine, Ospedale San Gerardo, Monza Italy.
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Successful endoscopic third ventriculostomy in children depends on age and etiology of hydrocephalus: outcome analysis in 51 pediatric patients. Childs Nerv Syst 2018; 34:1521-1528. [PMID: 29696356 DOI: 10.1007/s00381-018-3811-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/17/2018] [Indexed: 10/17/2022]
Abstract
PURPOSE Endoscopic third ventriculostomy (ETV) has become the method of choice in the treatment of hydrocephalus. Age and etiology could determine success rates (SR) of ETV. The purpose of this study is to assess these factors in pediatric population. METHODS Retrospective study on 51 children with obstructive hydrocephalus that underwent ETV was performed. The patients were divided into three groups per their age at the time of the treatment: < 6, 6-24, and > 24 months of age. All ETV procedures were performed by the same neurosurgeon. RESULTS Overall SR of ETV was 80% (40/51) for all etiologies and ages. In patients < 6 months of age SR was 56.2% (9/16), while 6-24 months of age was 88.9% (16/18) and > 24 months was 94.1% (16/17) (p = 0.012). The highest SR was obtained on aqueductal stenosis. SR of posthemorrhagic, postinfectious, and spina bifida related hydrocephalus was 60% (3/5), 50% (1/2), and 14.3% (1/7), respectively. While SR rate at the first ETV attempt was 85.3%, it was 76.9% in patients with V-P shunt performed previously (p = 0.000). CONCLUSIONS Factors indicating a potential failure of ETV were young age and etiology such as spina bifida, other than isolated aqueductal stenosis. ETV is the method of choice even in patients with former shunting. Fast healing, distensible skulls, and lower pressure gradient in younger children, all can play a role in ETV failure. Based on our experience, ETV could be the first method of choice for hydrocephalus even in children younger than 6 months of age.
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Abbassy M, Aref K, Farhoud A, Hekal A. Outcome of single-trajectory rigid endoscopic third ventriculostomy and biopsy in the management algorithm of pineal region tumors: a case series and review of the literature. Childs Nerv Syst 2018; 34:1335-1344. [PMID: 29808320 DOI: 10.1007/s00381-018-3840-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 05/14/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND Tumors within the pineal region represent 1.5 to 8.5% of the pediatric brain tumors and 1.2% of all brain tumors. A management algorithm has been proposed in several publications. The algorithm includes endoscopic third ventriculostomy (ETV) and biopsy in cases presenting with hydrocephalus. In this series, we are presenting the efficacy of a single-trajectory approach for both ETV and biopsy. METHODS Eleven cases were admitted to Alexandria main university hospital from 2013 to 2016 presenting with pineal region tumors and hydrocephalus. Mean age at diagnosis was 11 years (1-27 years). All cases had ETV and biopsy using rigid ventriculoscope through a single trajectory from a burr hole planned on preoperative imaging. Follow-up period was 7-48 months. RESULTS All 11 cases presented with hydrocephalus and increased intracranial pressure manifestations. Histopathological diagnosis was successful in 9 out of 11 cases (81.8%). Three cases were germ-cell tumors, two cases were pineoblastomas, two cases were pilocytic astrocytomas, and two cases were grade 2 tectal gliomas. Five of the ETV cases (45.5%) failed and required VPS later on. Other complications of ETV included one case of intraventricular hemorrhage and a case with tumor disseminated to the basal cisterns. CONCLUSION In our series, we were able to achieve ETV and biopsy through a single trajectory and a rigid endoscope with results comparable to other studies in the literature.
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Affiliation(s)
- Mahmoud Abbassy
- Neurosurgery Department, Alexandria University, Khartoum sq. Al-Azareeta, Faculty of Medicine, Surgery Building 6th Floor Neurosurgery Department, Alexandria, Egypt.
| | - Khaled Aref
- Neurosurgery Department, Alexandria University, Khartoum sq. Al-Azareeta, Faculty of Medicine, Surgery Building 6th Floor Neurosurgery Department, Alexandria, Egypt
| | - Ahmed Farhoud
- Neurosurgery Department, Alexandria University, Khartoum sq. Al-Azareeta, Faculty of Medicine, Surgery Building 6th Floor Neurosurgery Department, Alexandria, Egypt
| | - Anwar Hekal
- Neurosurgery Department, Alexandria University, Khartoum sq. Al-Azareeta, Faculty of Medicine, Surgery Building 6th Floor Neurosurgery Department, Alexandria, Egypt
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Marx S, Reinfelder M, Matthes M, Schroeder HWS, Baldauf J. Frequency and treatment of hydrocephalus prior to and after posterior fossa tumor surgery in adult patients. Acta Neurochir (Wien) 2018; 160:1063-1071. [PMID: 29455408 DOI: 10.1007/s00701-018-3496-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 02/10/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND There is paucity of information about the frequency of hydrocephalus prior to and after posterior fossa tumor surgery in adult patients and about the best way it should be managed. The present study was conducted to determine the frequency of hydrocephalus prior to and after posterior fossa tumor surgery in adult patients as well as the value of an endoscopic third ventriculostomy (ETV) prior to posterior fossa tumor surgery with regard to the rate of perioperative complications and persistent hydrocephalus. METHODS A single-institution retrospective chart review of all posterior fossa tumor surgeries of our department in a 10-year period (2005 to 2014) has been done. RESULTS Fifty-two of 243 adult patients with posterior fossa tumors presented with hydrocephalus at the time of admission prior to tumor surgery. 39/52 received early tumor surgery, 11/52 an ETV prior to tumor surgery and in 2/52 an external ventricular drainage (EVD) was inserted prior to tumor surgery. 3/52 patients required a permanent cerebrospinal fluid (CSF) diverting procedure for persistent hydrocephalus after tumor removal. One hundred ninety-one patients did not demonstrate a hydrocephalus before surgical treatment and four of them developed a post-resection hydrocephalus. CONCLUSION The frequency of hydrocephalus prior to posterior fossa tumor surgery in adult patients is 21.4% and therefore much lower than in respective reports of pediatric patients. The risk of persistent hydrocephalus and newly developed hydrocephalus after tumor surgery was very low, too (5.7 and 2.1%, respectively). An ETV is not justified in every adult patient prior to posterior fossa tumor surgery.
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Affiliation(s)
- Sascha Marx
- Department of Neurosurgery, University Medicine Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany.
| | - Maresa Reinfelder
- Department of Neurosurgery, University Medicine Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany
| | - Marc Matthes
- Department of Neurosurgery, University Medicine Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany
| | - Henry W S Schroeder
- Department of Neurosurgery, University Medicine Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany
| | - Joerg Baldauf
- Department of Neurosurgery, University Medicine Greifswald, Sauerbruchstraße, 17475, Greifswald, Germany
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Feng Z, Li Q, Gu J, Shen W. Update on Endoscopic Third Ventriculostomy in Children. Pediatr Neurosurg 2018; 53:367-370. [PMID: 30110690 DOI: 10.1159/000491638] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 06/28/2018] [Indexed: 01/07/2023]
Abstract
Endoscopic third ventriculostomy (ETV) provides a physiological restoration of cerebrospinal fluid and a shunt-free option for hydrocephalus children. Continuous developments in techniques and instruments have improved ETV as the first-line treatment. This paper focuses on the recent advances in surgical techniques, instruments, predictive models, imaging tools, and new cohort studies. The efficacy, safety, indications, and remaining challenges of ETV are discussed. More patients undergo ETV with a better outcome, identifying a new era of hydrocephalus treatment. Deeper understanding of ETV will improve a better shunt-free survival for pediatric hydrocephalus patients.
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Affiliation(s)
- Zhiqiang Feng
- Department of Pediatric Neurosurgery, Taian Maternal and Child Health Hospital, Shandong, China
| | - Qiuping Li
- Department of Neurosurgery, Zhongshan Hospital of Fudan University, Shanghai, China
| | - JianJun Gu
- Stroke Center, People's Hospital of Zhengzhou University, Henan, China
| | - Wenjun Shen
- Department of Pediatric Neurosurgery, Children's Hospital of Fudan University, Shanghai,
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Kang YS, Park EK, Kim JS, Kim DS, Thomale UW, Shim KW. Efficacy of endoscopic third ventriculostomy in old aged patients with normal pressure hydrocephalus. Neurol Neurochir Pol 2017; 52:29-34. [PMID: 29103634 DOI: 10.1016/j.pjnns.2017.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 09/16/2017] [Accepted: 10/13/2017] [Indexed: 10/18/2022]
Abstract
Normal pressure hydrocephalus (NPH) is a chronic disorder caused by interrupted CSF absorption or flow. Generally, shunt placement is first option for NPH treatment. Due to complications of ventriculo-peritoneal (VP) shunt placement, endoscopic third ventriculostomy (ETV) can be considered as an alternative treatment option. Here we report the efficacy of ETV especially in old aged patients with normal pressure hydrocephalus. Total 21 old aged patients with communicating hydrocephalus with opening pressure, measured via lumbar puncture, less than 20cm H2O underwent ETV. 15 patients had primary/idiopathic NPH and 6 patients had secondary NPH. All patients were studied with a MRI to observe the flow void at aqueduct and the fourth ventricle outflow. And all of them underwent ETV. In a group with peak velocity was higher than 5cm/s, nine patients (75%) were evaluated was 'favorable' and three of them (25%) was scored 'poor'. In another group with peak velocity less than 5cm/s, three of them were scored 'poor' and two of them were scored 'stable'. None of them was evaluated as 'favorable'. We also evaluated the outcomes according to etiology: 12 patients (80% of the patients with primary NPH) were evaluated with 'favorable' after ETV treatment. Two patients (13.3%) were as 'stable'. And one patient was as 'poor' evaluated. Five patients (83.3%) among patients with secondary NPH were as 'poor' evaluated and one of them was stable and no patient was as 'favorable' evaluated. 4 patients, which was as 'poor' evaluated in the group with the secondary NPH, underwent additional VP shunt implantation. Overall, the outcomes of the group with the idiopathic NPH after ETV treatment were more favorable than of the group with the secondary NPH. Our study suggest that ETV can be effective for selected elderly patients with primary/idiopathic NPH, when they satisfy criteria including positive aqueduct flow void on T2 Sagittal MRI and the aqueductal peak velocity, which is greater than 5cm/s on cine MRI.
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Affiliation(s)
- Young Sill Kang
- Department of Neurosurgery, Universitätsmedizin, Mainz, Germany; Division of Pediatric Neurosurgery, Charité Universitätsmedizin, Berlin, Germany
| | - Eun-Kyung Park
- Pediatric Neurosurgery, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ju-Seong Kim
- Pediatric Neurosurgery, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong-Seok Kim
- Pediatric Neurosurgery, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | | | - Kyu-Won Shim
- Pediatric Neurosurgery, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
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Breimer GE, Dammers R, Woerdeman PA, Buis DR, Delye H, Brusse-Keizer M, Hoving EW. Endoscopic third ventriculostomy and repeat endoscopic third ventriculostomy in pediatric patients: the Dutch experience. J Neurosurg Pediatr 2017; 20:314-323. [PMID: 28708018 DOI: 10.3171/2017.4.peds16669] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVE After endoscopic third ventriculostomy (ETV), some patients develop recurrent symptoms of hydrocephalus. The optimal treatment for these patients is not clear: repeat ETV (re-ETV) or CSF shunting. The goals of the study were to assess the effectiveness of re-ETV relative to initial ETV in pediatric patients and validate the ETV success score (ETVSS) for re-ETV. METHODS Retrospective data of 624 ETV and 93 re-ETV procedures were collected from 6 neurosurgical centers in the Netherlands (1998-2015). Multivariable Cox proportional hazards modeling was used to provide an adjusted estimate of the hazard ratio for re-ETV failure relative to ETV failure. The correlation coefficient between ETVSS and the chance of re-ETV success was calculated using Kendall's tau coefficient. Model discrimination was quantified using the c-statistic. The effects of intraoperative findings and management on re-ETV success were also analyzed. RESULTS The hazard ratio for re-ETV failure relative to ETV failure was 1.23 (95% CI 0.90-1.69; p = 0.20). At 6 months, the success rates for both ETV and re-ETV were 68%. ETVSS was significantly related to the chances of re-ETV success (τ = 0.37; 95% bias corrected and accelerated CI 0.21-0.52; p < 0.001). The c-statistic was 0.74 (95% CI 0.64-0.85). The presence of prepontine arachnoid membranes and use of an external ventricular drain (EVD) were negatively associated with treatment success, with ORs of 4.0 (95% CI 1.5-10.5) and 9.7 (95% CI 3.4-27.8), respectively. CONCLUSIONS Re-ETV seems to be as safe and effective as initial ETV. ETVSS adequately predicts the chance of successful re-ETV. The presence of prepontine arachnoid membranes and the use of EVD negatively influence the chance of success.
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Affiliation(s)
- Gerben E Breimer
- Department of Neurosurgery, University Medical Center Groningen.,Departments of 2 Pathology and
| | - Ruben Dammers
- Department of Neurosurgery, Erasmus MC, Sophia Children's Hospital, Rotterdam
| | - Peter A Woerdeman
- Department of Neurosurgery, Rudolf Magnus Institute of Neuroscience, University Medical Center, Utrecht
| | - Dennis R Buis
- Neurosurgery, Academic Medical Center Amsterdam.,Department of Neurosurgery, VU University Medical Center, Neurosurgical Center Amsterdam
| | - Hans Delye
- Department of Neurosurgery, Radboud University Nijmegen Medical Centre, Nijmegen; and
| | | | - Eelco W Hoving
- Department of Neurosurgery, University Medical Center Groningen
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Gianaris TJ, Nazar R, Middlebrook E, Gonda DD, Jea A, Fulkerson DH. Failure of ETV in patients with the highest ETV success scores. J Neurosurg Pediatr 2017; 20:225-231. [PMID: 28686122 DOI: 10.3171/2016.7.peds1655] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Endoscopic third ventriculostomy (ETV) is a surgical alternative to placing a CSF shunt in certain patients with hydrocephalus. The ETV Success Score (ETVSS) is a reliable, simple method to estimate the success of the procedure by 6 months of postoperative follow-up. The highest score is 90, estimating a 90% chance of the ETV effectively treating hydrocephalus without requiring a shunt. Treatment with ETV fails in certain patients, despite their being the theoretically best candidates for the procedure. In this study the authors attempted to identify factors that further predicted success in patients with the highest ETVSSs. METHODS A retrospective review was performed of all patients treated with ETV at 3 institutions. Demographic, radiological, and clinical data were recorded. All patients by definition were older than 1 year, had obstructive hydrocephalus, and did not have a prior shunt. Failure of ETV was defined as the need for a shunt by 1 year. The ETV was considered a success if the patient did not require another surgery (either shunt placement or a repeat endoscopic procedure) by 1 year. A statistical analysis was performed to identify factors associated with success or failure. RESULTS Fifty-nine patients met the entry criteria for the study. Eleven patients (18.6%) required further surgery by 1 year. All of these patients received a shunt. The presenting symptom of lethargy statistically correlated with success (p = 0.0126, odds ratio [OR] = 0.072). The preoperative radiological finding of transependymal flow (p = 0.0375, OR 0.158) correlated with success. A postoperative larger maximum width of the third ventricle correlated with failure (p = 0.0265). CONCLUSIONS The preoperative findings of lethargy and transependymal flow statistically correlated with success. This suggests that the best candidates for ETV are those with a relatively acute elevation of intracranial pressure. Cases without these findings may represent the failures in this highly selected group.
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Affiliation(s)
- Thomas J Gianaris
- Department of Neurological Surgery, Division of Pediatric Neurosurgery, Goodman Campbell Brain and Spine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Ryan Nazar
- Department of Neurosurgery, University of Louisville, Kentucky
| | - Emily Middlebrook
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas; and
| | - David D Gonda
- Division of Neurosurgery, University of California at San Diego, Rady Children's Hospital, San Diego, California
| | - Andrew Jea
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas; and
| | - Daniel H Fulkerson
- Department of Neurological Surgery, Division of Pediatric Neurosurgery, Goodman Campbell Brain and Spine, Indiana University School of Medicine, Indianapolis, Indiana
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Mweshi MM, Amosun SL, Shilalukey-Ngoma MP, Munalula-Nkandu E, Kafaar Z. The development and evaluation of content validity of the Zambia Spina Bifida Functional Measure: Preliminary studies. Afr J Disabil 2017; 6:264. [PMID: 28951850 PMCID: PMC5566225 DOI: 10.4102/ajod.v6i0.264] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 02/15/2017] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Very little is known on outcome measures for children with spina bifida (SB) in Zambia. If rehabilitation professionals managing children with SB in Zambia and other parts of sub-Saharan Africa are to instigate measuring outcomes routinely, a tool has to be made available. The main objective of this study was to develop an appropriate and culturally sensitive instrument for evaluating the impact of the interventions on children with SB in Zambia. METHODS A mixed design method was used for the study. Domains were identified retrospectively and confirmation was done through a systematic review study. Items were generated through semi-structured interviews and focus group discussions. Qualitative data were downloaded, translated into English, transcribed verbatim and presented. These were then placed into categories of the main domains of care deductively through the process of manifest content analysis. Descriptive statistics, alpha coefficient and index of content validity were calculated using SPSS. RESULTS Self-care, mobility and social function were identified as main domains, while participation and communication were sub-domains. A total of 100 statements were generated and 78 items were selected deductively. An alpha coefficient of 0.98 was computed and experts judged the items. CONCLUSIONS The new functional measure with an acceptable level of content validity titled Zambia Spina Bifida Functional Measure (ZSBFM) was developed. It was designed to evaluate effectiveness of interventions given to children with SB from the age of 6 months to 5 years. Psychometric properties of reliability and construct validity were tested and are reported in another study.
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Affiliation(s)
- Margaret M Mweshi
- Department of Physiotherapy, School of Medicine, University of Zambia, Zambia
| | - Seyi L Amosun
- Division of Physiotherapy, School of Health & Rehabilitation Sciences, University of Cape Town, South Africa
| | | | | | - Zuhayr Kafaar
- Department of Psychology, Faculty of Arts & Social Sciences, Stellenbosch University, South Africa
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Effectiveness of Intraventricular Endoscopic Lamina Terminalis Fenestration in Comparison with Standard ETV: Systematic Review of Literature. World Neurosurg 2017; 103:257-264. [DOI: 10.1016/j.wneu.2017.03.143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/29/2017] [Accepted: 03/30/2017] [Indexed: 11/17/2022]
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Chen Q, Feng Z, Tan Q, Guo J, Tang J, Tan L, Feng H, Chen Z. Post-hemorrhagic hydrocephalus: Recent advances and new therapeutic insights. J Neurol Sci 2017; 375:220-230. [PMID: 28320134 DOI: 10.1016/j.jns.2017.01.072] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 01/25/2017] [Accepted: 01/30/2017] [Indexed: 02/07/2023]
Abstract
Post-hemorrhagic hydrocephalus (PHH), also referred to as progressive ventricular dilatation, is caused by disturbances in cerebrospinal fluid (CSF) flow or absorption following hemorrhage in the brain. As one of the most serious complications of neonatal/adult intraventricular hemorrhage (IVH), subarachnoid hemorrhage (SAH), and traumatic brain injury (TBI), PHH is associated with increased morbidity and disability of these events. Common sequelae of PHH include neurocognitive impairment, motor dysfunction, and growth impairment. Non-surgical measures to reduce increased intracranial pressure (ICP) in PHH have shown little success and most patients will ultimately require surgical management, such as external ventricular drainage and shunting which mostly by inserting a CSF drainage shunt. Unfortunately, shunt complications are common and the optimum time for intervention is unclear. To date, there remains no comprehensive strategy for PHH management and it becomes imperative that to explore new therapeutic targets and methods for PHH. Over past decades, increasing evidence have indicated that hemorrhage-derived blood and subsequent metabolic products may play a key role in the development of IVH-, SAH- and TBI-associated PHH. Several intervention strategies have recently been evaluated and cross-referenced. In this review, we summarized and discussed the common aspects of hydrocephalus following IVH, SAH and TBI, relevant experimental animal models, clinical translation of in vivo experiments, and potential preventive and therapeutic targets for PHH.
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Affiliation(s)
- Qianwei Chen
- Department of Neurosurgery, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China
| | - Zhou Feng
- Department of Neurosurgery, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China
| | - Qiang Tan
- Department of Neurosurgery, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China
| | - Jing Guo
- Department of Neurosurgery, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China; Department of Neurosurgery, The 211st Hospital of PLA, Harbin 150086, China
| | - Jun Tang
- Department of Neurosurgery, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China
| | - Liang Tan
- Department of Neurosurgery, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China
| | - Hua Feng
- Department of Neurosurgery, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China.
| | - Zhi Chen
- Department of Neurosurgery, Southwest Hospital, The Third Military Medical University, Chongqing 400038, China.
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Operative planning aid for optimal endoscopic third ventriculostomy entry points in pediatric cases. Childs Nerv Syst 2017; 33:269-273. [PMID: 28101675 PMCID: PMC5352741 DOI: 10.1007/s00381-016-3320-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 12/06/2016] [Indexed: 11/18/2022]
Abstract
OBJECT Endoscopic third ventriculostomy (ETV) uses anatomical spaces of the ventricular system to reach the third ventricle floor and create an alternative pathway for cerebrospinal fluid flow. Optimal ETV trajectories have been previously proposed in the literature, designed to grant access to the third ventricle floor without a displacement of eloquent periventricular structures. However, in hydrocephalus, there is a significant variability to the configuration of the ventricular system, implying that the optimal ETV trajectory and cranial entry point needs to be planned on a case-by-case basis. In the current study, we created a mathematical model, which tailors the optimal ETV entry point to the individual case by incorporating the ventricle dimensions. METHODS We retrospectively reviewed the imaging of 30 consecutive pediatric patients with varying degrees of ventriculomegaly. Three dimensional radioanatomical models were created using preoperative MRI scans to simulate the optimal ETV trajectory and entry point for each case. The surface location of cranial entry points for individual ETV trajectories was recorded as Cartesian coordinates centered at Bregma. The distance from the Bregma in the coronal plane represented as "x", and the distance from the coronal suture in the sagittal plane represented as "y". The correlation between the ventricle dimensions and the x, y coordinates were tested using linear regression models. RESULTS The distance of the optimal ETV entry point from the Bregma in the coronal plane ("x") and from the coronal suture in the sagittal plane ("y") correlated well with the frontal horn ratio (FHR). The coordinates for x and y were fitted along the following linear equations: x = 85.8 FHR-13.3 (r 2 = 0.84, p < 0.001) and y = -69.6 FHR + 16.7 (r 2 = 0.83, p < 0.001). CONCLUSION The surface location of the optimal cranial ETV entry point correlates well with the ventricle size. We provide the first model that can be used as a surgical planning aid for a case specific ETV entry site with the incorporation of the ventricle size.
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Oertel J, Vulcu S, Eickele L, Wagner W, Cinalli G, Rediker J. Long-Term Follow-Up of Repeat Endoscopic Third Ventriculostomy in Obstructive Hydrocephalus. World Neurosurg 2016; 99:556-565. [PMID: 28034816 DOI: 10.1016/j.wneu.2016.12.072] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 12/15/2016] [Accepted: 12/17/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Endoscopic third ventriculostomy (ETV) is a safe and less-invasive treatment strategy for patients with obstructive hydrocephalus and provides excellent outcome. Nevertheless, repeat ETV in cases of ETV failure is a controversial issue. METHODS Between 1993 and 1999, 113 patients underwent a total of 126 ETVs at the Department of Neurosurgery, Mainz University Hospital. Obstructive hydrocephalus was the causative pathology in all cases. A very long-term follow-up of up to 16 years could be achieved. All medical reports of patients who received ETV were reviewed and analyzed with focus on ETV failure with following repeat ETV and its initial as well as very long-term success. RESULTS Thirty-one events of ETV failure occurred during the follow-up period. Thirteen patients underwent repeat ETV: 3 patients during the first 3 months (early repeat ETV), the other 10 patients after 7-78 months (late repeat ETV, mean 33 months). All repeat ETV were performed without complications. Follow-up evaluation after successful repeat ETV ranged from <1 month up to 14 years (mean 7 years). Of the 3 early revisions, 2 failed and 1 other patient died during follow-up whereas only 2 of the late repeat ETV failed. Very long-term success rate of late repeat ETV up to 14 years yielded 80%. CONCLUSIONS Repeat ETV in cases of late ETV failures represents an excellent option for cerebrospinal fluid circulation restoration up to 14 years of follow-up. Repeat ETV in early ETV failure in contrast is not favored by the performing surgeons; and factors of ETV failure should be analyzed very carefully before a decision for repeat ETV is made.
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Affiliation(s)
- Joachim Oertel
- Department of Neurosurgery, Saarland University Medical Center, Homburg/Saar, Germany.
| | - Sonja Vulcu
- Department of Neurosurgery, Saarland University Medical Center, Homburg/Saar, Germany
| | - Leonie Eickele
- Department of Neurosurgery, Saarland University Medical Center, Homburg/Saar, Germany
| | - Wolfgang Wagner
- Department of Neurosurgery, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Giuseppe Cinalli
- Department Pediatric Neurosurgery, Santobono-Pausilipon Children's Hospital, Naples, Italy
| | - Jana Rediker
- Department of Neurosurgery, Saarland University Medical Center, Homburg/Saar, Germany
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Börcek AÖ, Uçar M, Karaaslan B. Simplest radiological measurement related to clinical success in endoscopic third ventriculostomy. Clin Neurol Neurosurg 2016; 152:16-22. [PMID: 27863276 DOI: 10.1016/j.clineuro.2016.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 11/02/2016] [Accepted: 11/09/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Radiologic criteria for a successful endoscopic third ventriculostomy are not clearly defined and there is an ongoing need for determining simplest and strongest radiological criteria for this purpose. This paper aims to determine the easiest radiological parameter related to surgical outcome METHODS: Between January 2012 and December 2015 all patients receiving endoscopic third ventriculostomy with various indications were reviewed and 29 patients whose preoperative and early postoperative 3D-CISS images were available were studied. There were 13 males and 16 females, and there were 11 pediatric cases (mean age: 9.90±5.2; range: 2-18). The mean age of the entire population was 26.58±18.32 (range: 2-68 years). Measurements were performed using the ruler tool of a freely distributed medical imaging software. Simple ruler measurements of ventricular floor depression, lamina terminalis bowing, anterior commissure to tuber cinereum distance, mamillary body to lamina terminalis distance, third ventricular width, frontal horn width and occipital horn width were recorded and compared between successful and failed interventions. RESULTS Of the ventriculostomies, 22 (75.9%) were considered successful and 7 (24.1%) as failed at the last follow-up visit. Of the measurements performed, only those related to the third ventricle itself were significantly higher in the failed group. There were no association with lateral ventricular measurements. CONCLUSION Simple ruler measurements of the suggested distances significantly correlate with clinical success. After validating our results with higher number of patients, complex measurements and calculations to determine the link between clinical success and radiological success of ventriculostomy procedures may not be needed.
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Affiliation(s)
- Alp Özgün Börcek
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Gazi University Faculty of Medicine, Ankara, Turkey.
| | - Murat Uçar
- Deparment of Radiology, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Burak Karaaslan
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Gazi University Faculty of Medicine, Ankara, Turkey
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Moreira I, Pereira J, Oliveira J, Salvador SF, Vaz R. Endoscopic re-opening of third ventriculostomy: Case series and review of literature. Clin Neurol Neurosurg 2016; 145:58-63. [DOI: 10.1016/j.clineuro.2016.04.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 04/05/2016] [Accepted: 04/07/2016] [Indexed: 11/16/2022]
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Ortega E, Muñoz RI, Luza N, Guerra F, Guerra M, Vio K, Henzi R, Jaque J, Rodriguez S, McAllister JP, Rodriguez E. The value of early and comprehensive diagnoses in a human fetus with hydrocephalus and progressive obliteration of the aqueduct of Sylvius: Case Report. BMC Neurol 2016; 16:45. [PMID: 27067115 PMCID: PMC4828774 DOI: 10.1186/s12883-016-0566-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 03/25/2016] [Indexed: 01/08/2023] Open
Abstract
Background Mutant rodent models have highlighted the importance of the ventricular ependymal cells and the subcommissural organ (a brain gland secreting glycoproteins into the cerebrospinal fluid) in the development of fetal onset hydrocephalus. Evidence indicates that communicating and non-communicating hydrocephalus can be two sequential phases of a single pathological phenomenon triggered by ependymal disruption and/or abnormal function of the subcommissural organ. We have hypothesized that a similar phenomenon may occur in human cases with fetal onset hydrocephalus. Case presentation We report here on a case of human fetal communicating hydrocephalus with no central nervous system abnormalities other than stenosis of the aqueduct of Sylvius (SA) that became non-communicating hydrocephalus during the first postnatal week due to obliteration of the cerebral aqueduct. The case was followed closely by a team of basic and clinic investigators allowing an early diagnosis and prediction of the evolving pathophysiology. This information prompted neurosurgeons to perform a third ventriculostomy at postnatal day 14. The fetus was monitored by ultrasound, computerized axial tomography and magnetic resonance imaging (MRI). After birth, the follow up was by MRI, electroencephalography and neurological and neurocognitive assessments. Cerebrospinal fluid (CSF) collected at surgery showed abnormalities in the subcommissural organ proteins and the membrane proteins L1-neural cell adhesion molecule and aquaporin-4. The neurological and neurocognitive assessments at 3 and 6 years of age showed neurological impairments (epilepsy and cognitive deficits). Conclusions (1) In a hydrocephalic fetus, a stenosed SA can become obliterated at perinatal stages. (2) In the case reported, a close follow up of a communicating hydrocephalus detected in utero allowed a prompt postnatal surgery aiming to avoid as much brain damage as possible. (3) The clinical and pathological evolution of this patient supports the possibility that the progressive stenosis of the SA initiated during the embryonic period may have resulted from ependymal disruption of the cerebral aqueduct and dysfunction of the subcommissural organ. The analysis of subcommissural organ glycoproteins present in the CSF may be a valuable diagnostic tool for the pathogenesis of congenital hydrocephalus.
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Affiliation(s)
- Eduardo Ortega
- Unidad de Neurocirugía, Instituto de Neurociencias Clínicas, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - Rosa I Muñoz
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - Nelly Luza
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - Francisco Guerra
- Instituto de Fisiología, Facultad de Medicina, Universidad Austral de Chile, Casilla 456, Valdivia, Chile
| | - Monserrat Guerra
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile.
| | - Karin Vio
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - Roberto Henzi
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - Jaime Jaque
- Unidad de Neurocirugía, Instituto de Neurociencias Clínicas, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - Sara Rodriguez
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - James P McAllister
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Esteban Rodriguez
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
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Foster KA, Deibert CP, Choi PA, Gardner PA, Tyler-Kabara EC, Engh JA. Endoscopic third ventriculostomy as adjunctive therapy in the treatment of low-pressure hydrocephalus in adults. Surg Neurol Int 2016; 7:26. [PMID: 27069743 PMCID: PMC4802992 DOI: 10.4103/2152-7806.178522] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Accepted: 10/29/2015] [Indexed: 11/07/2022] Open
Abstract
Background: Treatment of low-pressure hydrocephalus (LPH) may require prolonged external ventricular drainage (EVD) at sub-zero pressures to reverse ventriculomegaly. Endoscopic third ventriculostomy (ETV) has been used in the treatment of noncommunicating hydrocephalus; however, indications for ETV are expanding. Methods: Patients with the diagnosis of LPH as defined by the Pang and Altschuler criteria who underwent sub-zero drainage treatment over an 8-year period were included. Patients were divided into two cohorts based on whether or not ETV was employed during their treatment. Time from EVD placement to internalization of shunt was recorded for both groups; time from ETV to placement of shunt was recorded for the patients undergoing ETV. Results: Sixteen adult patients with LPH were managed with sub-zero drainage method. Ten (62.5%) patients did not undergo ETV and the average time from first ventriculostomy to shunting was 73 days (range 14–257 days). Six (37.5%) patients underwent ETV during the course of their treatment; average time from initial ventriculostomy to shunt was 114 days (range 0–236 days) (P = 0.16). Time from development of LPH to ETV ranged from 28 days to 6.5 months. In the ETV group, of the 4 patients who underwent shunting, the average time to shunting following ETV was 15.25 days. Conclusions: ETV can be used successfully in the management of refractory LPH to decrease the duration of EVD.
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Affiliation(s)
- Kimberly A Foster
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Christopher P Deibert
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Phillip A Choi
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Paul A Gardner
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Elizabeth C Tyler-Kabara
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Johnathan A Engh
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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Abstract
Hydrocephalus is a common disorder of cerebral spinal fluid (CSF) physiology resulting in abnormal expansion of the cerebral ventricles. Infants commonly present with progressive macrocephaly whereas children older than 2 years generally present with signs and symptoms of intracranial hypertension. The classic understanding of hydrocephalus as the result of obstruction to bulk flow of CSF is evolving to models that incorporate dysfunctional cerebral pulsations, brain compliance, and newly characterised water-transport mechanisms. Hydrocephalus has many causes. Congenital hydrocephalus, most commonly involving aqueduct stenosis, has been linked to genes that regulate brain growth and development. Hydrocephalus can also be acquired, mostly from pathological processes that affect ventricular outflow, subarachnoid space function, or cerebral venous compliance. Treatment options include shunt and endoscopic approaches, which should be individualised to the child. The long-term outcome for children that have received treatment for hydrocephalus varies. Advances in brain imaging, technology, and understanding of the pathophysiology should ultimately lead to improved treatment of the disorder.
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Affiliation(s)
- Kristopher T Kahle
- Department of Neurosurgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Abhaya V Kulkarni
- Division of Neurosurgery, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - David D Limbrick
- Division of Neurosurgery, St Louis Children's Hospital, Washington University School of Medicine, St Louis, MO, USA
| | - Benjamin C Warf
- Department of Neurosurgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.
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de Kunder SL, Ter Laak-Poort MP, Nicolai J, Vles JSH, Cornips EMJ. Fever after intraventricular neuroendoscopic procedures in children. Childs Nerv Syst 2016; 32:1049-55. [PMID: 27080093 PMCID: PMC4882356 DOI: 10.1007/s00381-016-3085-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 04/06/2016] [Indexed: 11/29/2022]
Abstract
PURPOSE The purpose of this paper was to study the incidence and clinical significance of fever after intraventricular neuroendoscopic procedures in children. METHODS We retrospectively assessed all children subjected to an intraventricular neuroendoscopic procedure between 2004 and 2015. Body temperature 6 days postoperatively, symptoms and signs, and eventual cerebrospinal fluid analysis were evaluated. Fever was defined as temperature above 38 °C. RESULTS Fifty-five children (mean age 4.8 years) had 67 procedures. Forty-three children (47 procedures, 70 %) developed fever, mostly the day of surgery (n = 17; 25 %) or the next day (n = 33; 49 %). All children who were clinically ill (n = 9, including 7 with fever) suffered serious illness, as opposed to none of the children with fever without being clinically ill (n = 36). Fever was unrelated to gender, indication for, and type of procedure and did not influence ETV success rate at 3 months. Children under 1 year less frequently developed fever (p = 0.032). CONCLUSIONS Fever frequently develops after intraventricular neuroendoscopic procedures in children and follows a rather predictable course, peaking the day of surgery and/or the next day, and rapidly subsiding thereafter. Fever is not a cardinal symptom except when combined with other symptoms in children who are clinically ill (which most of them are not). Close observation avoiding invasive diagnostic tests may suffice for those who are not clinically ill, while extra attention should be paid to those whose temperature rises after day 2 especially when clinically ill, as they likely suffer serious illness. We recommend to closely observe children after any intraventricular neuroendoscopic procedure for at least 5 days.
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Affiliation(s)
- S L de Kunder
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - M P Ter Laak-Poort
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - J Nicolai
- Department of Child Neurology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - J S H Vles
- Department of Child Neurology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - E M J Cornips
- Department of Neurosurgery, Maastricht University Medical Center, Maastricht, The Netherlands.
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Zador Z, Coope DJ, Kamaly-Asl ID. Comparative analysis of endoscopic third ventriculostomy trajectories in pediatric cases. J Neurosurg Pediatr 2015; 16:626-32. [PMID: 26339953 DOI: 10.3171/2015.4.peds14430] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT Endoscopic third ventriculostomy (ETV) has become a widely used method for CSF diversion when treating obstructive hydrocephalus. There are multiple recommendations on the transcortical ETV entry points, and some are specifically designed to provide a trajectory that avoids displacement to the eloquent periventricular structures. However, the morphology of the ventricular system is highly variable in hydrocephalus, and therefore a single best ETV trajectory may not be applicable to all cases. In the current study, 3 frequently quoted ETV entry points are compared in a cohort of pediatric cases with different degrees of ventriculomegaly. METHODS The images of 30 consecutive pediatric patients with varying degrees of ventriculomegaly were reviewed. Three-dimensional models were created using radiological analysis of anatomical detail and preoperative MRI scans in order to simulate 3 frequently quoted ETV trajectories for rigid neuroendoscopes. These trajectories were characterized based on the frequency and depth of tissue displacement to structures such as the fornix, caudate nucleus, genu of the internal capsule, and thalamus. The results are stratified based on ventricle size using the frontal horn ratio (FHR). RESULTS Eloquent areas were displaced in nearly all analyzed entry points (97%-100%). Stratifying the data based on ventricle size revealed that (1) lateral structures were more likely to be displaced in cases of intermediate ventriculomegaly (FHR < 0.4) using all 3 trajectories, whereas (2) the fornix was less likely to be displaced using more posteriorly placed trajectories for severe ventriculomegaly (FHR > 0.4). Allowing for minimal (2.4 mm) tissue displacement, a more posterior entry point was less traumatic for severe ventriculomegaly. CONCLUSIONS There is no single best ETV trajectory that fully avoids displacement of the eloquent periventricular structures. Larger ventricles require a more posteriorly placed entry point in order to reduce injury to the eloquent structures, and intermediate ventricles would dictate a medial entry point. These results suggest that the optimal entry point should be selected on a case-by-case basis after incorporating ventricle size.
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Affiliation(s)
- Zsolt Zador
- Department of Pediatric Neurosurgery, Royal Manchester Children's Hospital, Manchester;,Department of Neurosurgery, Greater Manchester Neuroscience Centre, Salford Royal NHS Foundation Trust, Salford, United Kingdom
| | - David J Coope
- Department of Pediatric Neurosurgery, Royal Manchester Children's Hospital, Manchester;,Wolfson Molecular Imaging Centre, The University of Manchester, Manchester; and.,Department of Neurosurgery, Greater Manchester Neuroscience Centre, Salford Royal NHS Foundation Trust, Salford, United Kingdom
| | - Ian D Kamaly-Asl
- Department of Pediatric Neurosurgery, Royal Manchester Children's Hospital, Manchester
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Vulcu S, Eickele L, Cinalli G, Wagner W, Oertel J. Long-term results of endoscopic third ventriculostomy: an outcome analysis. J Neurosurg 2015; 123:1456-62. [DOI: 10.3171/2014.11.jns14414] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT
Endoscopic third ventriculostomy (ETV) is the procedure of choice in the treatment of obstructive hydrocephalus. The excellent clinical and radiological success rates are well known. Nevertheless, very few papers have addressed the very long term outcomes of the procedure in very large series. The authors present a large case series of 113 patients who underwent 126 ETVs, and they highlight the initial postoperative outcome after 3 months and long-term follow-up with an average of 7 years.
METHODS
All patients who underwent ETV at the Department of Neurosurgery, Mainz University Hospital, between 1993 and 1999 were evaluated. Obstructive hydrocephalus was the causative pathology in all cases.
RESULTS
The initial clinical success rate was 82% and decreased slightly to 78% during long-term follow-up. Long-term success was analyzed using Kaplan-Meier curves. Overall, ETV failed in 31 patients. These patients underwent a second ETV or shunt treatment. A positive impact on long-term success was seen for age older than 6 months, and for obstruction due to cysts or benign aqueductal stenosis. The complication rate was 9% with 5 intraoperative and 5 postoperative events.
CONCLUSIONS
The high clinical success rate in short-term and long-term follow-up confirms ETV’s status as the gold standard for the treatment of obstructive hydrocephalus, especially for distinct pathologies. The patient’s age and underlying pathology may influence the outcome. These factors should be considered carefully preoperatively by the surgeon.
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Affiliation(s)
- Sonja Vulcu
- 1Neurosurgical Department, Universitaet des Saarlandes, Homburg/Saar, Germany
| | - Leonie Eickele
- 1Neurosurgical Department, Universitaet des Saarlandes, Homburg/Saar, Germany
| | | | - Wolfgang Wagner
- 3Neurosurgical Department, Universitaetsmedizin Mainz, Germany
| | - Joachim Oertel
- 1Neurosurgical Department, Universitaet des Saarlandes, Homburg/Saar, Germany
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Grand W, Leonardo J, Chamczuk AJ, Korus AJ. Endoscopic Third Ventriculostomy in 250 Adults With Hydrocephalus. Neurosurgery 2015; 78:109-19. [DOI: 10.1227/neu.0000000000000994] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Abstract
BACKGROUND:
Endoscopic third ventriculostomy (ETV) has been used predominantly in the pediatric population in the past. Application in the adult population has been less extensive, even in large neurosurgical centers. To our knowledge, this report is one of the largest adult ETV series reported and has the consistency of being performed at 1 center.
OBJECTIVE:
To determine the efficacy, safety, and outcome of ETV in a large adult hydrocephalus patient series at a single neurosurgical center. In addition, to analyze patient selection criteria and clinical subgroups (including those with ventriculoperitoneal shunt [VPS] malfunction or obstruction and neurointensive care unit patients with extended ventricular drainage before ETV) to optimize surgical results in the future.
METHODS:
We conducted a retrospective review of adult ETV procedures performed at our center between 2000 and 2014.
RESULTS:
The overall rate of success (no further cerebrospinal fluid diversion procedure performed plus clinical improvement) of 243 completed ETVs was 72.8%. Following is the number of procedures with the success rate in parentheses: aqueduct stenosis, 56 (91%); communicating hydrocephalus including normal pressure hydrocephalus, nonnormal pressure hydrocephalus, and remote head trauma, 57 (43.8%); communicating hydrocephalus in postoperative posterior fossa tumor without residual tumor, 14 (85.7%); communicating hydrocephalus in subarachnoid hemorrhage without intraventricular hemorrhage, 23 (69.6%); obstruction from tumor/cyst, 42 (85.7%); VPS obstruction (diagnosis unknown), 23 (65.2%); intraventricular hemorrhage, 20 (90%); and miscellaneous (obstructive), 8 (50%). There were 9 complications in 250 intended procedures (3.6%); 5 (2%) were serious.
CONCLUSION:
Use of ETV in adult hydrocephalus has broad application with a low complication rate and reasonably good efficacy in selected patients.
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Affiliation(s)
- Walter Grand
- Department of Neurosurgery, School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, New York
- Department of Neurosurgery, Kaleida Health System, Buffalo, New York
| | - Jody Leonardo
- Department of Neurosurgery, School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, New York
- Department of Neurosurgery, Kaleida Health System, Buffalo, New York
| | - Andrea J. Chamczuk
- Department of Neurosurgery, School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, New York
- Department of Neurosurgery, Kaleida Health System, Buffalo, New York
- Department of Neurosurgery, Creighton University, Omaha, Nebraska (current affiliation)
| | - Adam J. Korus
- Department of Neurosurgery, School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, New York
- Department of Neurosurgery, Kaleida Health System, Buffalo, New York
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Labidi M, Lavoie P, Lapointe G, Obaid S, Weil AG, Bojanowski MW, Turmel A. Predicting success of endoscopic third ventriculostomy: validation of the ETV Success Score in a mixed population of adult and pediatric patients. J Neurosurg 2015. [PMID: 26207604 DOI: 10.3171/2014.12.jns141240] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT Endoscopic third ventriculostomy (ETV) has become the first line of treatment in obstructive hydrocephalus. The Toronto group (Kulkarni et al.) developed the ETV Success Score (ETVSS) to predict the clinical response following ETV based on age, previous shunt, and cause of hydrocephalus in a pediatric population. However, the use of the ETVSS has not been validated for a population comprising adults. The objective of this study was to validate the ETVSS in a "closed-skull" population, including patients 2 years of age and older. METHODS In this retrospective observational study, medical charts of all consecutive cases of ETV performed in two university hospitals were reviewed. The primary outcome, the success of ETV, was defined as the absence of reoperation or death attributable to hydrocephalus at 6 months. The ETVSS was calculated for all patients. Discriminative properties along with calibration of the ETVSS were established for the study population. The secondary outcome is the reoperation-free survival. RESULTS This study included 168 primary ETVs. The mean age was 40 years (range 3-85 years). ETV was successful at 6 months in 126 patients (75%) compared with a mean ETVSS of 82.4%. The area under the receiver operating characteristic curve was 0.61, revealing insufficient discrimination from the ETVSS in this population. In contrast, calibration of the ETVSS was excellent (calibration slope = 1.01), although the expected low numbers were obtained for scores < 70. Decision curve analyses demonstrate that ETVSS is marginally beneficial in clinical decision-making, a reduction of 4 and 2 avoidable ETVs per 100 cases if the threshold used on the ETVSS is set at 70 and 60, respectively. However, the use of the ETVSS showed inferior net benefit when compared with the strategy of not recommending ETV at all as a surgical option for thresholds set at 80 and 90. In this cohort, neither age nor previous shunt were significantly associated with unsuccessful ETV. However, better outcomes were achieved in patients with aqueductal stenosis, tectal compressions, and other tumor-associated hydrocephalus than in cases secondary to myelomeningocele, infection, or hemorrhage (p = 0.03). CONCLUSIONS The ETVSS did not show adequate discrimination but demonstrated excellent calibration in this population of patients 2 years and older. According to decision-curve analyses, the ETVSS is marginally useful in clinical scenarios in which 60% or 70% success rates are the thresholds for preferring ETV to CSF shunt. Previous history of CSF shunt and age were not associated with worse outcomes, whereas posthemorrhagic and postinfectious causes of the hydrocephalus were significantly associated with reduced success rates following ETV.
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Affiliation(s)
- Moujahed Labidi
- Neurological Sciences Department, Division of Neurosurgery, CHU de Québec-Hôpital de l'Enfant-Jésus, Québec City; and
| | - Pascale Lavoie
- Neurological Sciences Department, Division of Neurosurgery, CHU de Québec-Hôpital de l'Enfant-Jésus, Québec City; and
| | - Geneviève Lapointe
- Neurological Sciences Department, Division of Neurosurgery, CHU de Québec-Hôpital de l'Enfant-Jésus, Québec City; and
| | - Sami Obaid
- Surgery Department, Division of Neurosurgery, CHUM-Hôpital Notre-Dame, Montréal, Québec, Canada
| | - Alexander G Weil
- Surgery Department, Division of Neurosurgery, CHUM-Hôpital Notre-Dame, Montréal, Québec, Canada
| | - Michel W Bojanowski
- Surgery Department, Division of Neurosurgery, CHUM-Hôpital Notre-Dame, Montréal, Québec, Canada
| | - André Turmel
- Neurological Sciences Department, Division of Neurosurgery, CHU de Québec-Hôpital de l'Enfant-Jésus, Québec City; and
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Chhun V, Sacko O, Boetto S, Roux FE. Third Ventriculocisternostomy for Shunt Failure. World Neurosurg 2015; 83:970-5. [DOI: 10.1016/j.wneu.2015.01.058] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 01/26/2015] [Accepted: 01/28/2015] [Indexed: 10/23/2022]
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Arjipour M, Hanaei S, Habibi Z, Esmaeili A, Nejat F, El Khashab M. Small size craniotomy in endoscopic procedures: Technique and advantages. J Pediatr Neurosci 2015; 10:1-4. [PMID: 25878732 PMCID: PMC4395935 DOI: 10.4103/1817-1745.154309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Endoscopic procedure has been known as the method of choice for treatment of hydrocephalus with 8.5% complication rate. It seems that good dural closure, reconstructing bone defect and perfect pericranium suturing can decrease the wound complications. Here, we describe the method of minicraniotomy instead of the burr hole in the endoscopic procedure. MATERIALS AND METHODS A case-control study regarding the cranial opening for endoscopic surgery was done in 45 patients of <12 months age; 15 patients in case group for minicraniotomy and 30 infants as control group for burr hole. They were followed at least 1-month for complications including cerebrospinal fluid collection, wound dehiscence, wound infection, and meningitis. RESULT Patients were between 1 and 11 months. Hydrocephalus (73%) was the most common etiology for endoscopic surgery in this series, followed by the arachnoid cyst (20%). Two patients in the case group and eight in control group developed complications. Meningitis was found in one infant in the control group. Despite less complications in the case group the difference between two cohorts was not statistically significant. CONCLUSION Minicraniotomy with providing more space in comparison to burr hole makes dural closure possible. It provides a small bone flap that can be replaced inside the bone defect. In spite of nonsignificant statistical difference between two groups regarding complication rate, we found less wound complications with minicraniotomy. Therefore, we advise this technique for the endoscopic procedure and propose minicraniotomy even in the older population to provide better dural opening, watertight dural closure and reconstructing the bone defect.
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Affiliation(s)
- Mahdi Arjipour
- Department of Neurosurgery, Shariati Hospital, Tehran, Iran
| | - Sara Hanaei
- Department of Neurosurgery, Children's Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohreh Habibi
- Department of Neurosurgery, Children's Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Arash Esmaeili
- Department of Neurosurgery, Children's Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Nejat
- Department of Neurosurgery, Children's Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mostafa El Khashab
- Department of Neurosurgery, Hackensack University Medical Center, New Jersey, USA
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Results of endoscopic third ventriculostomy in elderly patients ≥65 years of age. Clin Neurol Neurosurg 2015; 130:48-54. [DOI: 10.1016/j.clineuro.2014.12.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 12/01/2014] [Accepted: 12/20/2014] [Indexed: 11/23/2022]
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