The Role of the Liliequist Membrane in the Third Ventriculostomy

2021 ◽  
Author(s):  
Jose Aloysio Costa Val Filho ◽  
Sebastião Nataniel da Silva Gusmão ◽  
Leopoldo Mandic Ferreira Furtado ◽  
Guaracy de Macedo Machado Filho ◽  
Fernando Levi Alencar Maciel
Keyword(s):  
Success Rate ◽  
Endoscopic Third Ventriculostomy ◽  
Pediatric Population ◽  
Difficulty Level ◽  
Third Ventriculostomy ◽  
Technical Parameters ◽  
Hydrocephalus Treatment ◽  
Endoscopic Third Ventriculostomy Success ◽  
The Impact

Abstract Endoscopic third ventriculostomy (ETV) is a hydrocephalus treatment procedure that involves opening the Liliequist membrane (LM). However, LM anatomy has not been well-studied neuroendoscopically, because approach angles differ between descriptive and microsurgical anatomical explorations. Discrepancies in ETV efficacy, especially among children age 2 and younger, may be due to incomplete LM opening. The objective of this study was to characterize the LM anatomically from a neuroendoscopic perspective to better understand the impact of anatomical features during LM ostomy and the ETV success rate. Additionally, the ETV success score was tested to predict patient outcome after the intraoperatively difficult opening of LM. Fifty-four patients who underwent ETV were prospectively analyzed with a mean follow-up of 53.1 months (1–90 months). The ETV technical parameters of difficulty were validated by seven expert neurosurgeons. The pediatric population (44) of this study represents the majority of patients (81.4%). The overall ETV success rate was 68.5%. Anomalies on the IIIVT floor resulted in an increased rate of ETV failure. The IIIVT was anomalous, and LM was thick in 33.3% of cases. Fenestration of LM was difficult in 39% of cases, and the LM and TC were opened separately in 55.6% of cases. The endoscopic third ventriculostomy success score (ETVSS) accurately predicted the level of difficulty opening the LM (p = 0.012), and the group with easy opening presented greater durability in ETV success. Neurosurgeons should be aware of the difficulty level of the overture of LM during ETV and its impact on long-term ETV effectiveness.

scholarly journals The long-term outcomes of endoscopic third ventriculostomy in pediatric hydrocephalus, with an emphasis on future intellectual development and shunt dependency

2019 ◽  
Vol 23 (1) ◽  
pp. 104-108 ◽  
Author(s):  
Sukwoo Hong ◽  
Daisuke Hirokawa ◽  
Kenichi Usami ◽  
Hideki Ogiwara
Keyword(s):  
Success Rate ◽  
Intellectual Development ◽  
Endoscopic Third Ventriculostomy ◽  
Full Scale ◽  
Third Ventriculostomy ◽  
Pediatric Hydrocephalus ◽  
Shunt Dependency ◽  
Csf Diversion ◽  
Ventricle Size

OBJECTIVEThe goal of this study was to clarify the long-term outcome of endoscopic third ventriculostomy (ETV) in pediatric hydrocephalus in light of the ETV Success Score (ETVSS), shunt dependency, and intellectual development.METHODSThe authors retrospectively analyzed pediatric patients with hydrocephalus who underwent ETV between 2002 and 2012 and who were followed for longer than 5 years as a single-center cohort. The data of the patients’ pre- and postoperative status were collected. The relationships between ETVSS and the full-scale IQ as well as shunt dependency were analyzed. The usefulness of ETVSS for repeat ETV and the change of radiological parameters of ventricle size before and after ETV were also analyzed. The success of ETV was defined as no requirement for further CSF diversion procedures.RESULTSFifty ETVs were performed in 40 patients. The average ETVSS was 61 and the success rate at 6 months was 64%. The mean follow-up was 9.9 years (5.2–15.3 years), and the long-term success rate of ETV was 50%. The Kaplan-Meier survival curve continued to show a statistically significant difference among patients with a low, moderate, and high ETVSS, even after 6 months (p = 0.002). After 15 months from the initial ETV, no patients required additional CSF diversion surgery. There was no statistical significance between ETVSS and the long-term full-scale IQ or shunt dependency (p = 0.34 and 0.12, respectively). The radiological improvement in ventricle size was not associated with better future educational outcome.CONCLUSIONSThe ETVSS was correlated with the long-term success rate. After 15 months from the initial ETV, no patients required an additional CSF diversion procedure. The ETVSS was not considered to be correlated with long-term intellectual status.

LASER-ASSISTED ENDOSCOPIC THIRD VENTRICULOSTOMY

Neurosurgery ◽  
2008 ◽  
Vol 62 (2) ◽  
pp. 437-444 ◽  
Author(s):  
Janneke van Beijnum ◽  
Patrick W. Hanlo ◽  
Kathelijn Fischer ◽  
Mohsen M. Majidpour ◽  
Marlous F. Kortekaas ◽  
...  
Keyword(s):  
Success Rate ◽  
Endoscopic Third Ventriculostomy ◽  
Major Complication ◽  
Aqueductal Stenosis ◽  
Third Ventriculostomy ◽  
Success Rates ◽  
Patients Âgés ◽  
Kaplan Meier

Abstract OBJECTIVE Endoscopic third ventriculostomy is a well-known surgical option in the treatment of noncommunicating hydrocephalus. We studied complications and long-term success in 202 patients to demonstrate the safety and efficacy of laser-assisted endoscopic third ventriculostomy (LA-ETV) using a unique “black” fiber tip/diode laser combination for controlled tissue ablation. METHODS We studied 213 LA-ETVs, which were performed in 202 patients. Patients' ages ranged from 2 days to 83 years (mean age, 27 yr). The mean follow-up period for all patients was 2.7 years (range, 2 d to 12 yr). Hydrocephalus was caused by aqueductal stenosis in 65 patients, tumors in 67 patients, hemorrhages in 24 patients, myelomeningoceles in 20 patients, cysts in 15 patients, and other causes in 11 patients. The long-term effectiveness of LA-ETV was studied with Kaplan-Meier analysis. RESULTS Technically successful LA-ETVs were accomplished in 196 of the 202 patients (97%). The overall success rate for a functional LA-ETV was 68% at the 2-year follow-up evaluation. LA-ETV was more effective in patients aged 1 year and older (70% success rate) than in younger patients (59% success rate). Success rates were greater in patients with aqueductal stenosis or tumors as compared to other etiologies. Complications occurred in 22 procedures (10.3%). Only one patient (0.5%) experienced a major complication. No surgical mortalities or laser-related complications occurred. CONCLUSION This study demonstrates that LA-ETV is a safe and effective procedure that is comparable to other techniques for ETV. LA-ETV is most effective in patients aged 1 year and older and in patients with aqueductal stenosis and tumors, with a low major complication rate.

Long-term results of endoscopic third ventriculostomy: an outcome analysis

2015 ◽  
Vol 123 (6) ◽  
pp. 1456-1462 ◽  
Author(s):  
Sonja Vulcu ◽  
Leonie Eickele ◽  
Giuseppe Cinalli ◽  
Wolfgang Wagner ◽  
Joachim Oertel
Keyword(s):  
Success Rate ◽  
Endoscopic Third Ventriculostomy ◽  
Clinical Success ◽  
Obstructive Hydrocephalus ◽  
Clinical Success Rate ◽  
Long Term Results ◽  
Third Ventriculostomy ◽  
Long Term Follow Up

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.

Endoscopic third ventriculostomy for tumor-related hydrocephalus in a pediatric population

2005 ◽  
Vol 19 (6) ◽  
pp. 1-4 ◽  
Author(s):  
Pulak Ray ◽  
George I. Jallo ◽  
R. Y. H. Kim ◽  
Bong-Soo Kim ◽  
Sean Wilson ◽  
...  
Keyword(s):  
Success Rate ◽  
Patency Rate ◽  
Endoscopic Third Ventriculostomy ◽  
Pediatric Population ◽  
Obstructive Hydrocephalus ◽  
Management Tool ◽  
Third Ventriculostomy ◽  
Pineal Tumor ◽  
Success Rates ◽  
Primary Procedure

Object Endoscopic third ventriculostomy (ETV) has become a common alternative for managing hydrocephalus in select patients. Nevertheless, there is still controversy regarding the indications for ETV as the primary procedure, given its variable success rates. The purpose of this study is to review the authors' experience with ETV for a variety of patients. Methods A total of 43 children underwent ETV between July 1992 and June 2003. Their medical records, operative reports, and imaging studies, when available, were retrospectively reviewed with regard to outcome, complications, and patency rate. Treatment failure was defined as the need to place a shunt within 4 weeks of performing ETV in the patient. There were 20 male and 23 female patients with a mean age of 9.6 years (range 8 weeks–21 years). The overall success rate was 69.8%, and the mean follow-up duration was 24.6 months. Six patients underwent eight repeated ETVs at a mean interval of 25 months, with a patency rate of 62.5% after the second procedure. Only two surgeries were aborted for anatomical reasons. The highest success rates (100% in each instance) were achieved for obstructive hydrocephalus resulting from midbrain/tectal tumor (four patients) and pineal tumor (three patients). Conclusions The ETV procedure is an effective management tool for obstructive hydrocephalus in children. It should be considered the primary procedure, rather than ventriculoperitoneal shunts, in carefully selected children. The success rate is dependent on the origin of the hydrocephalus.

scholarly journals Endoscopic Third Ventriculostomy in Previously Shunted Children

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Eva Brichtova ◽  
Martin Chlachula ◽  
Tomas Hrbac ◽  
Radim Lipina
Keyword(s):  
Success Rate ◽  
Fourth Ventricle ◽  
Pediatric Patients ◽  
Endoscopic Third Ventriculostomy ◽  
Obstructive Hydrocephalus ◽  
Surgical Revision ◽  
Clinical State ◽  
Third Ventriculostomy ◽  
Safe Procedure ◽  
Shunt Implantation

Endoscopic third ventriculostomy (ETV) is a routine and safe procedure for therapy of obstructive hydrocephalus. The aim of our study is to evaluate ETV success rate in therapy of obstructive hydrocephalus in pediatric patients formerly treated by ventriculoperitoneal (V-P) shunt implantation. From 2001 till 2011, ETV was performed in 42 patients with former V-P drainage implantation. In all patients, the obstruction in aqueduct or outflow parts of the fourth ventricle was proved by MRI. During the surgery, V-P shunt was clipped and ETV was performed. In case of favourable clinical state and MRI functional stoma, the V-P shunt has been removed 3 months after ETV. These patients with V-P shunt possible removing were evaluated as successful. In our group of 42 patients we were successful in 29 patients (69%). There were two serious complications (4.7%)—one patient died 2.5 years and one patient died 1 year after surgery in consequence of delayed ETV failure. ETV is the method of choice in obstructive hydrocephalus even in patients with former V-P shunt implantation. In case of acute or scheduled V-P shunt surgical revision, MRI is feasible, and if ventricular system obstruction is diagnosed, the hydrocephalus may be solved endoscopically.

scholarly journals Progress in Pediatric Kidney Transplantation

2014 ◽  
Vol 7 (1) ◽  
pp. 115-122
Author(s):  
Jodi M. Smith ◽  
Vikas R. Dharnidharka
Keyword(s):  
Kidney Transplantation ◽  
Graft Survival ◽  
Pediatric Population ◽  
Short Term ◽  
Allocation Policy ◽  
Pediatric Kidney Transplantation ◽  
Timely Access ◽  
The Impact ◽  
Made In

Significant progress has been made in pediatric kidney transplantation. Advances in immunosuppression have dramatically decreased rates of acute rejection leading to improved short term graft survival but similar improvements in long term graft survival remain elusive. Changes in allocation policy provide the pediatric population with timely access to transplant but there remains concern about the impact of less HLA matching and a decrease in living donors. This report presents data from North America on these successes and the ongoing challenges that face the pediatric transplant community.

ENDOSCOPIC THIRD VENTRICULOSTOMY (ETV) IS A BETTER ALTERNATIVE FOR VP SHUNT FAILURE IN NON-COMMUNICATING HYDROCEPHALUS

2021 ◽  
pp. 65-67
Author(s):  
Ramesh Tanger ◽  
Dinesh Kumar Barolia ◽  
Arka Chatterjee ◽  
Punit Singh Parihar ◽  
Arun Gupta
Keyword(s):  
Success Rate ◽  
Endoscopic Third Ventriculostomy ◽  
Obstructive Hydrocephalus ◽  
Shunt Revision ◽  
Third Ventriculostomy ◽  
Communicating Hydrocephalus ◽  
Shunt Failure ◽  
Shunt Insertion ◽  
Vp Shunt

CONTEXT: VP Shunt is most commonly used procedure for hydrocephalus but shunt failure is also the common complication in many patients. Endoscopic third ventriculostomy (ETV) is an accepted procedure for the treatment of obstructive hydrocephalus. The aim of our study is to evaluate the success rate AIM AND OBJECTIVE - of ETV in patients of obstructive hydrocephalus formerly treated by ventriculo-peritoneal (VP shunt) shunt. The failure VP shunt was removed before ETV. MATERIALS AND METHOD: This study was conducted between June 2015 and December 2019 in single unit of our department. Twenty one (n=21) patients were enrolled for this study. All patients were admitted with failure of VP shunt. They were known case of non-communicating hydrocephalus previously operated for VP shunt. Six patients were excluded for ETV because CT/MRI show grossly distorted anatomy of ventricles. Endoscopic third ventriculostomy was attempted in 15 patients, but ventriculostomy was done successfully in 10 patients, rests were treated with revision of VP shunt. All patients in this study were radiologically diagnosed RESULTS: case of hydrocephalus due to aqueduct stenosis. They were experienced VP shunt insertion but there were failure of shunt due to any reason. ETV procedures were done successfully in 10 patients. Out of 10 patients one patient needed shunt insertion due ineffective ETV. Shunt revision was done in 11 patients. There was no serious complication during and after ETV procedures. The follow-up period of patients with successful ETV was 6–60 months. This follow-up was uneventful and peaceful for their parents. ETV can be considered as an alternative treatment for the patients w CONCLUSION: ith VP shunt failure with an acceptable success rate of 80%, although long-term follow-up is needed for these patients.

Whole lung irradiation for completely responding pulmonary metastases in pediatric Ewing sarcoma

2020 ◽  
Vol 16 (15) ◽  
pp. 1043-1051
Author(s):  
Hagar Elghazawy ◽  
Azza Nasr ◽  
Iman Zaky ◽  
Manal Zamzam ◽  
Ahmed Elgammal ◽  
...  
Keyword(s):  
Pulmonary Metastases ◽  
Pediatric Population ◽  
Event Free Survival ◽  
Relapse Free Survival ◽  
Free Survival ◽  
Real Value ◽  
Lung Irradiation ◽  
Whole Lung Irradiation ◽  
The Impact

Aim: Scarce data assessing the real value of whole lung irradiation (WLI) in Ewing’s sarcoma (ES) with lung-only metastasis, with published conflicting results. We studied the impact of WLI in a homogenous pediatric population. Materials & methods: Retrospective study evaluating the survival outcomes of WLI in these patients. Results: Out of 163 metastatic ES; 41 patients were eligible for WLI. 30 patients (73.1%) received WLI (+ve) while 11 patients (26.8%) did not receive WLI (-ve). Five-year event-free survival was statistically significant in WLI (+ve). Five-year pulmonary relapse-free survival showed trend for improvement with WLI (+ve), while 5-year overall survival was not statistically significant between the two arms. Conclusion: WLI added significantly to the long term clinical outcome of metastatic ES patients, with no irreversible toxicity.

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