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World Neurosurgery Jul 2021The best surgical treatment for adult Chiari malformation type 1 remains widely debated. (Meta-Analysis)
Meta-Analysis
Posterior Fossa Decompression and Duraplasty with and without Arachnoid Preservation for the Treatment of Adult Chiari Malformation Type 1: A Systematic Review and Meta-Analysis.
BACKGROUND
The best surgical treatment for adult Chiari malformation type 1 remains widely debated.
OBJECTIVE
This study aimed to assess the efficacy of posterior fossa decompression and duraplasty with arachnoid preservation compared with arachnoid dissection for the treatment of adult Chiari malformation type 1.
METHODS
Two reviewers (M.O.-G. and M.A.) performed a PubMed, MEDLINE, and Embase literature search using the following terms: ("Chiari" OR "Chiari 1") AND ("duraplasty" OR "arachnoid preservation" OR "arachnoid spar∗" OR "posterior fossa surgery" OR "posterior fossa decompression" OR "foramen magnum decompression"). Studies assessing the efficacy of posterior fossa decompression with duraplasty for the treatment of patients aged >18 years with Chiari malformation type 1 were included. Case reports with <10 patients, editorials, and non-English studies were excluded.
RESULTS
Of 195 studies identified, 24 were included for meta-analysis. In the 1006 participants, there was no difference in postoperative clinical or radiologic improvement between the 2 techniques. Patients who underwent posterior fossa decompression with duraplasty and arachnoid dissection had a greater prevalence of total complications (0.20, 95% confidence interval [CI], 0.13-0.29 vs. 0.09, 95% CI, 0.05-0.14; Q = 6.47; P = 0.01) and cerebrospinal fluid-related complications (0.15, 95% CI, 0.10-0.22 vs. 0.05, 95% CI, 0.02-0.12; Q = 4.88; P = 0.03) compared with arachnoid preservation. Furthermore, the prevalence of reoperation in the arachnoid dissection group was 25 times greater than in the arachnoid preservation group (0.08, 95% CI, 0.06-0.10 vs. 0.003, 95% CI, 0.00-0.02; Q = 10.73; P > 0.001).
CONCLUSIONS
Posterior fossa decompression and duraplasty with arachnoid preservation is a beneficial technique to treat Chiari malformation type 1 and reduces the risk of complications, particularly cerebrospinal fluid-related complications and the rate of reoperation.
Topics: Arachnoid; Arnold-Chiari Malformation; Cranial Fossa, Posterior; Decompression, Surgical; Humans; Neurosurgical Procedures; Treatment Outcome
PubMed: 33940274
DOI: 10.1016/j.wneu.2021.04.082 -
Neurosurgical Focus Mar 2020The recognition that neurosurgeons harbor great potential to advocate for the care of individuals with neural tube defects (NTDs) globally has sounded as a clear call to...
OBJECTIVE
The recognition that neurosurgeons harbor great potential to advocate for the care of individuals with neural tube defects (NTDs) globally has sounded as a clear call to action; however, neurosurgical care and training in low- and middle-income countries (LMICs) present unique challenges that must be considered. The objective of this study was to systematically review publications that describe the challenges and benefits of participating in neurosurgery-related training programs in LMICs in the service of individuals with NTDs.
METHODS
Using MEDLINE (PubMed), the authors conducted a systematic review of English- and Spanish-language articles published from 1974 to 2019 that describe the experiences of in-country neurosurgery-related training programs in LMICs. The inclusion criteria were as follows-1) population/exposure: US residents, US neurosurgeons, and local in-country medical staff participating in neurosurgical training programs aimed at improving healthcare for individuals with NTDs; 2) comparison: qualitative studies; and 3) outcome: description of the challenges and benefits of neurosurgical training programs. Articles meeting these criteria were assessed within a global health education conceptual framework.
RESULTS
Nine articles met the inclusion criteria, with the majority of the in-country neurosurgical training programs being seen in subregions of Africa (8/9 [89%]) and one in South/Central America. US-based residents and neurosurgeons who participated in global health neurosurgical training had increased exposure to rare diseases not common in the US, were given the opportunity to work with a collaborative team to educate local healthcare professionals, and had increased exposure to neurosurgical procedures involved in treating NTDs. US neurosurgeons agreed that participating in international training improved their own clinical practices but also recognized that identifying international partners, travel expenses, and interference with their current practice are major barriers to participating in global health education. In contrast, the local medical personnel learned surgical techniques from visiting neurosurgeons, had increased exposure to intraoperative decision-making, and were given guidance to improve postoperative care. The most significant challenges identified were difficulties in local long-term retention of trained fellows and staff, deficient infrastructure, and lower compensation offered for pediatric neurosurgery in comparison to adult care.
CONCLUSIONS
The challenges and benefits of international neurosurgical training programs need to be considered to effectively promote the development of neurosurgical care for individuals with NTDs in LMICs. In this global health paradigm, future work needs to investigate further the in-country professionals' perspective, as well as the related outcomes.
Topics: Global Health; Health Education; Humans; Neural Tube Defects; Neurosurgeons; Neurosurgery; Neurosurgical Procedures
PubMed: 32114550
DOI: 10.3171/2019.12.FOCUS19448 -
Journal of Clinical Neuroscience :... Jul 2022Hemifacial spasm (HFS) can be associated with Chiari malformation type I (CM1), but the treatment paradigm for these concurrent conditions has not been well-defined. We... (Review)
Review
Hemifacial spasm (HFS) can be associated with Chiari malformation type I (CM1), but the treatment paradigm for these concurrent conditions has not been well-defined. We sought demographical differences between patients with HFS with and without CM1 and explored optimal surgical treatments for these patients. A systematic review of peer-reviewed literature identified 8 studies with 51 patients with CM1 and HFS. A patient from the authors' institution is presented as a case illustration. Of the 51 patients, the average age was 39.4 years, 63% (32/51) were female, 73% (37/51) underwent microvascular decompression (MVD) as a primary intervention, and 16% (8/51) underwent suboccipital decompression (SOD). After primary MVD, 83.7% (31/37) had complete resolution of their symptoms and 10.8% (4/37) had either recurrent CM1 symptoms or new-onset CM1 symptoms. Three (8.1%) required reoperation with suboccipital decompression to address new CM1-related symptoms. All patients who underwent SOD first had complete or near-complete resolution of symptoms. In 3 patients (37.5%) with near-complete resolution, the residual symptoms had insignificant impact on their quality of life. These data suggest that concomitant CM1 should be among the differential diagnosis in younger patients who present with HFS, particularly those who are female or who present with history suggesting tussive headaches. For patients who present with HFS and headache with CM1, SOD instead of MVD may be the preferred surgery to address concurrent symptoms. In patients with HFS and CM1 without headache, optimal treatment is less clear, but SOD as initial surgery may obviate the need for future reoperation.
Topics: Adult; Arnold-Chiari Malformation; Female; Headache; Hemifacial Spasm; Humans; Male; Microvascular Decompression Surgery; Quality of Life; Retrospective Studies; Superoxide Dismutase; Treatment Outcome
PubMed: 35512425
DOI: 10.1016/j.jocn.2022.04.038 -
Child's Nervous System : ChNS :... Mar 2020Previous studies have attempted to evaluate the utility of preoperative magnetic resonance imaging (MRI) parameters in predicting outcomes in Chiari I malformation. We... (Meta-Analysis)
Meta-Analysis
PURPOSE
Previous studies have attempted to evaluate the utility of preoperative magnetic resonance imaging (MRI) parameters in predicting outcomes in Chiari I malformation. We performed a systematic review and meta-analysis to determine what preoperative imaging features (if any) predict (1) presence of preoperative symptoms or associated findings, (2) need for surgical decompression, or (3) improvement after surgical decompression.
METHODS
All publications through June 2018 on PubMed, Embase, and Cochrane Library databases were searched using the keywords "Chiari I malformation" AND "decompression" OR "imaging." One thousand two hundred ten publications were identified, and 20 were included for our systematic review; nine were included in the meta-analysis.
RESULTS
Tonsil position, clivus gradient, and scoliotic curve of > 20° were all associated with the presence of preoperative syrinx. Degree of scoliotic curve was associated with length of syrinx. Pre-operative findings of central syrinx morphology, shorter syrinx, and scoliotic curve < 20° were associated with post-operative stability/improvement. Post-operative symptomatic improvement was associated with preoperative pB-C2 line ≥ 3 mm, absence of scoliosis, and presence of syrinx. By meta-analysis, there was no significant difference in post-operative improvement between patients with and without syrinx (OR = 0.89; 95% CI 0.58-1.37). Meta-analysis showed no significant difference in post-operative improvement between patients with and without basilar invagination (OR = 1.31; 95% CI 0.72-2.36).
CONCLUSIONS
Multiple studies have attempted to identify preoperative imaging parameters to predict post-operative improvement, but no consistently reliable criteria have been defined. This review and meta-analysis highlight the importance of considering each patient's clinical history and physical exam within the context of associated radiographic abnormalities.
Topics: Arnold-Chiari Malformation; Cranial Fossa, Posterior; Decompression, Surgical; Humans; Magnetic Resonance Imaging; Scoliosis; Syringomyelia; Treatment Outcome
PubMed: 31701278
DOI: 10.1007/s00381-019-04398-4 -
Journal of Pediatric Urology Dec 2023To review the urological outcomes of proactive versus delayed management of children with a neurogenic bladder (NB). (Meta-Analysis)
Meta-Analysis Review
PURPOSE
To review the urological outcomes of proactive versus delayed management of children with a neurogenic bladder (NB).
METHODS
We performed a literature search on EMBASE, MEDLINE, Scopus, Web of Science, and Cochrane Central Register of Controlled Trials between January 1, 2000 to August 21, 2023 for studies investigating the management of spina bifida-associated NB in pediatric patients (0-18 years of age). Proactive management was defined as use of clean intermittent catheterization, and/or anticholinergics at presentation, or based on initial high-risk urodynamic findings by 1 year of age. Delayed management was defined as beginning management after 1 year of age or no intervention. Outcomes included incidence or diagnosis of secondary vesicoureteral reflux (VUR), urinary tract infection (UTI), and renal deterioration, which included renal scarring, loss of differential renal function on a nuclear scan, or a decrease in renal function defined by glomerular filtration rate or serum creatinine estimation. Forest plots were synthesized using the Inverse Variance method with random-effect model. The Risk of Bias was assessed using the ROBINS-I tool.
RESULTS
We included 8 observational studies on 652 pediatric patients with spina bifida-associated NB (mean follow-up - 7 years). Proactive management following initial assessment was associated with significantly lower risks of secondary VUR (OR 0.37 [0.19, 0.74], p = 0.004), non-febrile UTI (OR 0.35 [0.19, 0.62], p = 0.0004), and renal deterioration (OR 0.31 [0.20, 0.47], p < 0.00001).
DISCUSSION
Delayed management of NB potentially has 3 times higher risks of secondary VUR, non-febrile UTI, and renal deterioration. However, the evidence is limited by the high risk of bias due to lack of randomization and standardized reporting in observational studies.
CONCLUSION
While further well-defined prospective studies with long-term follow-up should be conducted to confirm this finding, this study supports the EAU/ESPU recommendations for early intervention in children with NB.
Topics: Child; Humans; Urinary Bladder, Neurogenic; Prospective Studies; Kidney; Vesico-Ureteral Reflux; Urinary Tract Infections; Spinal Dysraphism; Retrospective Studies
PubMed: 37726188
DOI: 10.1016/j.jpurol.2023.08.033 -
International Journal of Developmental... Nov 2019Neural tube defects [NTDs] are severe congenital anomalies. The etiology of NTDs is not fully known, and studies on the potential risk factors of NTDs present... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
Neural tube defects [NTDs] are severe congenital anomalies. The etiology of NTDs is not fully known, and studies on the potential risk factors of NTDs present inconsistent results. Thus, we conducted a systematic review and meta-analysis to investigate the maternal, paternal, and neonatal risk factors for NTDs.
STUDY DESIGN
We systematically reviewed relative original studies published through October 6, 2018 available in Pubmed, Embase and the Cochrane Library without restrictions for language. The selected studies measured maternal, paternal, and neonatal risk factors and examined their associations with NTDs. A meta-analysis, including subgroup analysis and sensitivity analysis, was conducted to estimate the pooled effect measures. Two reviewers independently extracted data using a predesigned data collection form.
RESULTS
Forty-five studies were eligible for inclusion in the meta-analysis, and twelve potential risk factors were analyzed. The factors that were associated with NTDs risk included stressful life events [odds ratio [OR],1.61; 95% confidence interval [CI], 1.24-2.08; p < 0.001; I = 59.2%], low maternal education level [OR, 1.42; 95% CI, 1.19-1.70; p < 0.001; I = 47.7%], pregestational diabetes [OR, 2.24; 95% CI, 1.21-4.12; p < 0.010; I = 56.3%], low paternal age [OR, 1.41; 95% CI, 1.10-1.81; p = 0.007; I = 0.0%], low birth weight [OR, 5.53; 95% CI, 1.95-15.70; p = 0.001; I = 98.5%], and neonatal female gender [OR, 1.54; 95% CI, 1.10-2.14; p = 0.012; I = 67.8%].
CONCLUSION
Stressful life events, pregestational diabetes, low birth weight, and neonatal female gender are risk factors associated with NTDs. Low maternal education level and low paternal age are factors that are moderately associated with NTDs. Further cohort studies are required to verify the factors associated with NTDs and control the risk of this severe birth defect.
Topics: Humans; Infant, Newborn; Fathers; Life Change Events; Mothers; Neural Tube Defects; Paternal Age; Risk Factors; Sex Factors; Male; Female
PubMed: 31563704
DOI: 10.1016/j.ijdevneu.2019.09.006 -
Reproductive Sciences (Thousand Oaks,... Feb 2022Maternal nutrition is believed to be closely related to reproductive success and the importance of folate in the reproductive process and its involvement in fundamental... (Meta-Analysis)
Meta-Analysis
Maternal nutrition is believed to be closely related to reproductive success and the importance of folate in the reproductive process and its involvement in fundamental biological systems are well known. The present systematic review and meta-analysis will focus on two main aspects: level of folate in women undergoing infertility treatments and association between folate status and success rate in assisted reproductive techniques. Although the importance of folate in the preconceptional phase is known, available data regarding the levels of folate in women who undergo infertility treatments are scarce. Referring to the threshold values generally used for the general population or for supplement users, the concentration of folate in the serum and erythrocytes of infertile women is adequate in the majority of the population with differences related to the geographic origin of the study populations. However, using the red blood cells folate threshold specifically indicated to prevent neural tube defects, the majority of available studies do not offer sufficient data to conclude on the real folate situation. As for the probability of success of ART treatments based on folate levels, our review did not reveal a significant effect.
Topics: Female; Folic Acid; Humans; Infertility, Female; Pregnancy; Pregnancy Rate; Reproductive Techniques, Assisted
PubMed: 33533009
DOI: 10.1007/s43032-021-00467-9 -
Seminars in Reproductive Medicine Jul 2022Preconception care (PCC) involves a wide-ranging set of interventions to optimize health prior to pregnancy. These interventions seek to enhance conception rates,...
Preconception care (PCC) involves a wide-ranging set of interventions to optimize health prior to pregnancy. These interventions seek to enhance conception rates, pregnancy outcomes, childhood health, and the health of future generations. To assist health care providers to exercise high-quality clinical care in this domain, clinical practice guidelines from a range of settings have been published. This systematic review sought to identify existing freely accessible international guidelines, assess these in terms of their quality using the AGREE II tool, and assess the summary recommendations and the evidence level on which they are based. We identified 11 guidelines that focused on PCC. Ten of these were classified as moderate quality (scores ranging from 3.5 to 4.5 out of 7) and only one was classified as very high quality, scoring 6.5. The levels of evidence for recommendations ranged from the lowest possible level of evidence (III) to the highest (I-a): the highest quality evidence available is for folic acid supplementation to reduce risk of neural tube defects and the role of antiviral medication to prevent HIV transmission. This systematic review identified that high-quality guidelines on PCC are lacking and that few domains of PCC recommendations are supported by high-quality evidence.
Topics: Child; Exercise; Female; Fertilization; Health Personnel; Humans; Preconception Care; Pregnancy; Quality of Health Care
PubMed: 35576970
DOI: 10.1055/s-0042-1748190 -
Child's Nervous System : ChNS :... May 2024To describe surgical treatment of 3 cases of severe and progressive thoracolumbar kyphosis in myelomeningocele and provide a systematic review of the available... (Review)
Review
OBJECTIVES
To describe surgical treatment of 3 cases of severe and progressive thoracolumbar kyphosis in myelomeningocele and provide a systematic review of the available literature on the topic.
METHODS
Medical records and pre- and post-operative imaging of 3 patients with thoracolumbar kyphosis and myelomeningocele were reviewed. A database search was performed for all manuscripts published on kyphectomy and/or surgical treatment of kyphosis in myelomeningocele. Patients' information, preoperative kyphosis angle, type of surgery, levels of surgery degrees of correction after surgery and at follow-up, and complications were reviewed for the included studies.
RESULTS
Three cases underwent posterior vertebral column resection (pVCR) of 2-4 segments at the apex of the kyphosis (kyphectomy). Long instrumentation was performed with all pedicle screws constructed from the thoracic spine to the pelvis using iliac screws. According to literature review, a total of 586 children were treated for vertebral kyphosis related to myelomeningocele. At least one vertebra was excised to gain some degree of correction of the deformity. Different types of instrumentation were used over time and none of them demonstrated to be superior over the other.
CONCLUSION
Surgical treatment of progressive kyphosis in myelomeningocele has evolved over the years incorporating all major advances in spinal instrumentation techniques. Certainly, the best results in terms of preservation of correction after surgery and less revision rates were obtained with long construct and screws. However, complication rate remains high with skin problems being the most common complication. The use of low-profile instrumentation remains critical for treatment of these patients.
Topics: Child; Humans; Meningomyelocele; Treatment Outcome; Spinal Fusion; Retrospective Studies; Kyphosis
PubMed: 38459148
DOI: 10.1007/s00381-024-06341-8 -
The Bone & Joint Journal Mar 2024Children with spinal dysraphism can develop various musculoskeletal deformities, necessitating a range of orthopaedic interventions, causing significant morbidity, and...
AIMS
Children with spinal dysraphism can develop various musculoskeletal deformities, necessitating a range of orthopaedic interventions, causing significant morbidity, and making considerable demands on resources. This systematic review aimed to identify what outcome measures have been reported in the literature for children with spinal dysraphism who undergo orthopaedic interventions involving the lower limbs.
METHODS
A PROSPERO-registered systematic literature review was performed following PRISMA guidelines. All relevant studies published until January 2023 were identified. Individual outcomes and outcome measurement tools were extracted verbatim. The measurement tools were assessed for reliability and validity, and all outcomes were grouped according to the Outcome Measures Recommended for use in Randomized Clinical Trials (OMERACT) filters.
RESULTS
From 91 eligible studies, 27 individual outcomes were identified, including those related to clinical assessment (n = 12), mobility (n = 4), adverse events (n = 6), investigations (n = 4), and miscellaneous (n = 1). Ten outcome measurement tools were identified, of which Hoffer's Functional Ambulation Scale was the most commonly used. Several studies used unvalidated measurement tools originally developed for other conditions, and 26 studies developed new measurement tools. On the OMERACT filter, most outcomes reported pathophysiology and/or the impact on life. There were only six patient- or parent-reported outcomes, and none assessed the quality of life.
CONCLUSION
The outcomes that were reported were heterogenous, lack validation and failed to incorporate patient or family perceptions. Until outcomes can be reported unequivocally, research in this area will remain limited. Our findings should guide the development of a core outcome set, which will allow consistency in the reporting of outcomes for this condition.
Topics: Child; Humans; Orthopedics; Quality of Life; Reproducibility of Results; Outcome Assessment, Health Care; Spinal Dysraphism
PubMed: 38423096
DOI: 10.1302/0301-620X.106B3.BJJ-2023-0916.R1