Publications by authors named "Savio Batista"

Objective: In recent years, the application of robotic assistance in diagnostic and therapeutic endovascular neurointerventional procedures has gained notable attention. In this systematic review and meta-analysis, we aim to evaluate the feasibility, safety, and current indications of robotic-assisted neurointerventions and to assess the degree of robotic assistance and reasons for unplanned manual conversion from robotic assistance.

Methods: We searched Medline, Scopus, Web of Science, and Cochrane Library databases following PRISMA guidelines and included studies with ≥ 4 patients reporting on robotic-assisted neurointerventions.

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Background: Dissecting intracranial aneurysms (DIAs) have been treated through endovascular reconstructive manners, such as flow diverters (FDs) and stent-assisted coiling (SAC). Notably, no robust evidence has compared both approaches. Hence, the authors conducted a meta-analysis to compare their outcomes.

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Background: Surgical clipping and endovascular coiling are well-established treatments for acutely ruptured intracranial aneurysms leading to acute subarachnoid hemorrhage (aSAH). However, these modalities have limitations, particularly in cases involving wide-necked, bifurcating, or dissecting aneurysms. Flow diverter (FD) devices, initially used for unruptured aneurysms, have emerged as an alternative treatment for ruptured aneurysms despite concerns about hemorrhagic complications.

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Background And Objectives: Endovascular therapy (EVT) has recently become the most widely used treatment method for intracranial aneurysms (IAs). However, the literature on this topic is heterogeneous, with studies assessing and reporting surgical and clinical outcomes in different ways, lacking standardization. We aimed to evaluate the quality of these studies and propose a reporting guideline focusing on essential elements to ensure reproducibility and comparability.

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Essential tremor (ET) is identified as the most prevalent movement disorder, primarily characterized by tremors in both upper extremities. The spectrum of surgical options for ET includes gamma knife radiosurgery (GKRS) and other stereotactic radiosurgery (SRS) modalities. Despite the limitations of these options, SRS is deemed an essential and indispensable approach.

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Article Synopsis
  • Intracranial aneurysms are rare in children, making up less than 5% of cases, and their unique shape poses challenges for treatment, particularly with the growing use of flow-diverter devices like the Pipeline Embolization Device (PED).
  • A systematic review and meta-analysis were conducted using data from Medline, Embase, and Web of Science, focusing on studies with at least three pediatric patients to evaluate outcomes such as occlusion rates, complications, and mortality.
  • The analysis included 80 patients and showed a high immediate occlusion rate of 90%, favorable clinical outcomes in 92% of cases, and a low complication rate of 3%, indicating that flow-diverter
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Aim: To evaluate the usage and the effectiveness of LVIS Jr device technology in managing wide-neck intracranial aneurysms.

Material And Methods: PubMed, Embase, and Web of Science databases, comprising studies with outcomes related to LVIS Jr use in wide-neck intracranial aneurysms were searched systematically. Data was extracted from the selected articles and subjected to statistical analysis.

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Cerebral Proliferative Angiopathy (CPA) is a rare brain vascular malformation, similar to Arteriovenous Malformations (AVM) but lacking of early venous drainage. Presentation and treatment outcomes were investigated, examining for morbidity, mortality and complications. A meta-analysis was conducted according to PRISMA guidelines.

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Article Synopsis
  • Stereotactic Brachytherapy Iodine-125 (SBT I-125) is a treatment studied for low-grade gliomas, but the results raise concerns about its safety and effectiveness.
  • A review of 20 studies showed that about 10% of patients had complications and 33% faced mortality, even though some patients were able to remain progression-free for 5 or 10 years.
  • The researchers suggest that more long-term studies and better research methods are needed to understand the true effects of this treatment.
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Background: Among the reconstructive methods for treating dissecting posterior circulation aneurysms, there are stent-assisted coiling (SAC), and sole stenting (SS) therapy. Despite SAC being widely employed when compared to SS, no study systematically analyzed the difference in their outcomes.

Methods: The authors conducted a meta-analysis of studies employing both therapies to compare their outcomes.

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Article Synopsis
  • Neurosurgery is a hard field to get into, especially for international medical graduates (IMGs) who need to show they have done research to stand out.
  • Even though it’s tough, some Brazilian medical students have done really well by publishing important studies in big neurosurgery journals without needing a lot of money or resources.
  • The article suggests that IMGs can start their research careers by writing literature reviews and letters to the editor, which are easier ways to get involved in research.
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Background: High-grade gliomas (HGG) are the most aggressive primary brain tumors with poor prognoses despite conventional treatments. Immunotherapy has emerged as a promising avenue due to its potential to elicit a targeted immune response against tumor cells.

Objective: This meta-analysis aimed to evaluate the efficacy and safety of various immunotherapeutic strategies, including immune checkpoint inhibitors (ICI), virotherapy, and dendritic cell vaccines (DCV) in treating HGG.

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Objective: This study aims to evaluate the efficacy and safety of preoperative embolization, used 48 hours before surgery to reduce tumor size and surgical complications in carotid body paragangliomas.

Methods: This systematic review and meta-analysis followed Preferred Reporting Items for Systematic Reviews and Meta-Analysis and Cochrane Handbook. A comprehensive literature search was performed in Medline, Embase, Web of Science, and Cochrane databases.

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Background: Von Hippel-Lindau (VHL) disease is a rare autosomal dominant disorder that predisposes patients to develop multiple cysts and tumors, such as hemangioblastomas (HBs) and clear cell renal cell carcinoma (ccRCC), due to mutations in the VHL tumor suppressor gene. While treatment of HBs varies based on their characteristics and has improved patient survival, it still involves high morbidity and mortality, leading to ongoing debates and studies to refine therapy strategies. Recent developments include the emergence of Belzutifan, a novel inhibitor targeting hypoxia-inducible factor 2α (HIF-2α), which has shown promising results in ongoing trials, particularly for patients not immediately requiring surgery.

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Objective: Unruptured middle cerebral artery aneurysm (uMCAA) has traditionally been treated with open surgical clipping (SC). Endovascular treatments (EVTs) were designed to reduce surgical risks in these cases. Nevertheless, despite its potential benefits, many surgeons favor SC for uMCAA.

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Open cell stents (OC) and closed cell stents (CC) each offer unique advantages and potential drawbacks in the context of idiopathic intracranial hypertension (IIH) treatment. We aim to investigate the safety and efficacy of using OC and CC for IIH. We conducted a systematic review in PubMed, Embase, and Cochrane Library databases following the PRISMA guidelines.

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Article Synopsis
  • Small anterior communicating artery (ACoA) aneurysms are challenging for neurosurgeons due to their risky location and the potential for severe complications if they rupture; both surgical clipping and endovascular treatments are common approaches.
  • A meta-analysis was conducted across thirteen studies involving 637 patients to compare the efficacy and outcomes of surgical clipping versus endovascular treatment techniques, primarily focusing on coiling.
  • Results demonstrated similar overall outcomes for both methods, but surgical clipping had a significantly lower retreatment rate (0% vs. 18% for endovascular), while endovascular treatment had slightly higher mortality and complication rates, emphasizing the importance of factors such as surgeon expertise and patient characteristics in treatment decisions.
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Article Synopsis
  • Osteoporotic vertebral fractures lead to pain and diminished quality of life, and there’s ongoing debate on how best to manage them, particularly comparing percutaneous vertebroplasty (PV) to non-operative treatments (non-OT).* -
  • The analysis of randomized controlled trials showed PV provided significant pain relief at multiple time points, and notable improvements in quality of life were seen in the short term, but not consistently in the long term.* -
  • A substantial risk of cement leakage (42%) was noted with PV, but it did not increase the risk of new fractures; thus, careful patient selection is vital due to variability among studies.*
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Introduction: Conventionally, one branch of the superficial temporal artery (STA) is utilized to revascularize the middle cerebral artery (MCA). However, there is the possibility of utilizing both branches of the STA when performing the bypass, characterizing the double-barrel (DB) STA-MCA bypass. Notably, a lack of studies evaluating this technique led the authors to conduct a systematic review and single-arm meta-analysis.

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Background: Ventriculoatrial shunt (VAS) is an important treatment option for normal pressure hydrocephalus (NPH). However, clinical studies reporting the use of VAS for NPH lack sufficient standardization for meta-analytic comparisons that could provide robust evidence regarding its use. This study aims to assess the quality of reporting in these studies and develop a reporting guideline checklist to standardize terminology, concepts, and reporting while reinforcing the essential elements to ensure comparability and reproducibility.

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Background: Some centers utilize ventriculopleural shunt (VPLS) for treating hydrocephalus when conventional approaches are not feasible. Nonetheless, the literature regarding this approach is scarce.

Purpose: Evaluate the outcomes of VPLS through a single-arm meta-analysis.

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Extramedullary plasmacytoma (EMP) is an uncommon disorder characterized by the development of abnormal plasma cell tumors outside the bone marrow. These tumors are typically observed in various locations, including the upper respiratory tract, gastrointestinal tract, and other soft tissues. Among the less explored manifestations of EMP is intracranial EMP, which remains poorly understood due to the limited literature available on the subject.

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