Posts

Posted on

Surgical Management of Acute Subdural Hematoma: A Meta-Analysis

Neurosurgery 96:922–936, 2025

The meta-analysis evaluates surgical interventions for acute subdural hematoma, comparing craniotomy and decompressive craniectomy. It finds similar mortality and functional outcomes in matched cohorts, despite worse baseline parameters in craniectomy patients. The study emphasizes the need for future trials to validate these findings.

• Acute Subdural Hematoma (ASDH) requires urgent surgical intervention, typically through craniotomy (CO) or decompressive craniectomy (DC).

• Meta-analysis included 18 studies with 8886 patients, assessing functional outcomes and mortality rates between CO and DC.

• Functional outcomes showed similar Glasgow Outcome Scale-Extended (GOSE) scores between CO and DC, but Glasgow Outcome Scale (GOS) scores favored CO.

• Mortality analysis indicated lower short-term mortality for CO, but similar long-term mortality between CO and DC in matched cohorts.

• Complications and reoperation rates were comparable between CO and DC, with cerebrospinal fluid diversion more common in DC.

• Quality of Life (QOL) was not thoroughly assessed due to differences in measurement tools and limited data.

• The study highlights the need for further clinical trials to validate findings and address gaps in existing literature

Posted on

Acute Implantation of a Bioresorbable Polymer Scaffold in Patients With Complete Thoracic Spinal Cord Injury: A Randomized Controlled Trial (INSPIRE 2.0)

Neurosurgery 96:751–762, 2025

The INSPIRE 2.0 trial evaluated the safety and efficacy of a bioresorbable polymer scaffold for treating thoracic spinal cord injury. The study concluded that the scaffold did not provide a probable clinical benefit, leading to the trial’s early termination due to lack of efficacy and funding issues.

• The study INSPIRE 2.0 assessed the safety and potential benefit of a bioresorbable polymer scaffold (Neuro-Spinal Scaffold) in patients with complete thoracic spinal cord injury (SCI).

• Conducted as a randomized controlled trial at Level I trauma centers in the U.S., the study compared NSS implantation with standard-of-care spine surgery.

• The primary endpoint was the proportion of patients with an improvement of ≥1 AIS grade at 6 months post-surgery.

• Results showed no significant benefit of NSS over standard surgery; 20% of NSS patients improved compared to 30% of control patients.

• The study was terminated early due to not meeting its primary endpoint and subsequent withdrawal of industry sponsorship.

• Safety events were mostly mild or moderate, with no serious adverse device effects reported.

• The study highlighted the challenges of conducting clinical trials on spinal cord injury and the importance of reporting negative results.

Posted on

Electrocorticography and navigated transcranial magnetic stimulation–tailored supratotal resection for epileptogenic low-grade gliomas

J Neurosurg 142:918–926, 2025

The study evaluates ECoG-nTMS–tailored supratotal resection (ETT-SpTR) for low-grade gliomas with epilepsy, demonstrating improved seizure control and preserved neurological function compared to gross-total resection. ETT-SpTR effectively identifies high-risk epilepsy areas, enhancing epileptic and functional outcomes without permanent deficits.

• Objective: Evaluate the effectiveness of ECoG-nTMS–tailored supratotal resection (ETT-SpTR) for low-grade gliomas (LGGs) in controlling seizures and preserving neurological function.

• Methods: Retrospective analysis of patients with LGG and epileptic seizures undergoing resective surgery, comparing gross-total resection (GTR) with ETT-SpTR.

• Results: ETT-SpTR significantly improved seizure control (85.7% Engel class IA) compared to GTR (25% Engel class IA) with no permanent neurological deficits.

• Conclusion: ETT-SpTR is effective in improving epileptic outcomes and preserving functions without causing permanent neurological worsening.

• Preoperative Techniques: Functional cortical areas were identified using TMS, and ECoG guided the removal of high-risk epilepsy areas (HREAs).

• Statistical Analysis: Significant differences in seizure control between groups, with ETT-SpTR showing better outcomes.

• Limitations: Small patient cohort and limited follow-up period; future studies required for confirmation.

Posted on

Development of a unified and comprehensive definition of successful spinal fusion: a systematic review

J Neurosurg Spine 42:403–412, 2025

The document discusses a systematic review aimed at creating a unified definition of successful spinal fusion by integrating clinical symptoms, imaging modalities, and bone healing processes. It proposes a clinical algorithm for evaluating fusion success, emphasizing the need for standardized assessment criteria.

• A systematic review was conducted to develop a unified definition of successful spinal fusion, incorporating clinical symptoms and imaging modalities.

• The review involved 20 studies evaluating 1,324 spinal fusion procedures, resulting in a clinical algorithm for determining fusion success.

• The algorithm stratifies patients as symptomatic or asymptomatic, using specific imaging techniques based on pain type.

• Successful fusion for asymptomatic patients is considered after 12 months, while persistent symptoms indicate failure regardless of radiographic findings.

• Limitations include reliance on imaging and heterogeneous study data, but the algorithm aims to standardize fusion evaluation and improve outcomes.

• Future directions suggest using AI and machine learning for predictive algorithms and evaluating regional differences in fusion assessment.

• The proposed algorithm aims to improve diagnostic accuracy and provide a shared understanding of successful spinal fusion among clinicians.

• Implementation of the algorithm can enhance outcomes research and assess new developments in spinal fusion.

Posted on

Natural history, management, and outcomes of cerebellar cavernous malformations: A retrospective study of 130 patients

Neurosurgical Review (2025) 48:381

This study on cerebellar cavernous malformations (CMs) examines their natural history, management, and outcomes. It concludes that conservative management is generally effective for incidental lesions, while surgery is recommended for symptomatic cases, especially in accessible regions, due to the associated hemorrhage risks.

• This study investigates cerebellar cavernous malformations (CMs), focusing on natural history, management, and outcomes in 130 patients from 1990 to 2023.

• Hemorrhage risk for incidental lesions is 1.19%, while rehemorrhage risk for initially hemorrhagic lesions is 8.35%.

• Conservative management is recommended for incidental lesions, with surgery reserved for symptomatic, accessible cases.

• Surgery was performed on 31 patients, primarily for hemorrhage or cerebellar symptoms, with postoperative complications in three patients.

• Lesion location and size significantly influence hemorrhage risk and clinical outcomes, with eloquent regions posing higher risks.

• Long-term outcomes were generally favorable, with most patients experiencing improved or stable functional status.

• Psychological support is important due to potential cognitive and emotional impacts associated with cerebellar dysfunction.

• The study emphasizes the need for risk stratification based on lesion size and subregional anatomy within the cerebellum.

Posted on

Clinical and radiographic comparison of robot-assisted single-position versus traditional dual-position lateral lumbar interbody fusion

J Neurosurg Spine 42:443–452, 2025

The study compares robot-assisted single-position (RA-SP) and traditional dual-position (DP) lateral lumbar interbody fusion (LLIF) surgeries, finding RA-SP-LLIF reduces operative and fluoroscopy times with similar clinical and radiographic outcomes, suggesting enhanced surgical efficiency and safety.

• The study compares robot-assisted single-position (RA-SP) lateral lumbar interbody fusion (LLIF) with traditional dual-position LLIF in terms of clinical and radiographic outcomes.

• 59 patients were analyzed, with 31 undergoing RA-SP-LLIF and 28 undergoing traditional LLIF. Surgical parameters like operative duration, blood loss, and fluoroscopy duration were recorded.

• No significant differences were found in postoperative and follow-up times between groups, but both showed improvements in clinical scores such as VAS, ODI, and SF-36.

• RA-SP-LLIF showed significantly greater improvements in lumbar lordosis and segmental lordosis immediately postoperatively, although these differences were not significant at later evaluations.

• The RA-SP-LLIF group had shorter operative and fluoroscopy durations compared to the traditional LLIF group.

• RA-SP-LLIF is considered a promising technique for enhancing surgical efficiency, safety, and precision in lumbar spinal fusion procedures.

• Both procedures improved sagittal alignment parameters, but RA-SP-LLIF reduced surgery and anesthesia times by eliminating the need for repositioning.

Posted on

Comparative Efficacy and Safety of Endovascular Versus Surgical Treatment in Spinal Dural Arteriovenous Fistulas A Systematic Review and Meta-analysis

Spine 2025;50:562–574

This systematic review and meta-analysis reveal that surgical treatment for spinal dural arteriovenous fistulas (SDAVFs) achieves higher rates of complete occlusion and successful treatment compared to endovascular approaches, with lower recurrence and retreatment rates, despite similar neurological improvements and periprocedural complications.

• Objective: Compare the efficacy and safety of surgical vs. endovascular treatments for spinal dural arteriovenous fistulas (SDAVFs) through a systematic review and meta-analysis.

• Methods: Searched PubMed, Scopus, and Web of Science databases until July 2024, identifying 1192 articles, with 40 studies meeting inclusion criteria, involving 1818 patients.

• Results: Surgical treatment showed higher rates of complete occlusion (96.8%) and successful treatment (97.5%) compared to endovascular treatment (72.5% and 66.7%, respectively).

• Recurrence and Retreatment: Lower rates in the surgical group, with endovascular treatment showing higher initial treatment failure.

• Neurological Improvement: Both treatments had similar improvements in neurological status and periprocedural complications, but surgery showed greater improvement in the ALS score.

• Conclusion: Surgical treatment is preferred for definitive results in SDAVFs, but decisions should be individualized based on patient-specific factors. Further research is needed.

• Limitations: Potential publication bias and heterogeneity among included studies.

• Key Insight: This study is the most updated and comprehensive meta-analysis on SDAVF treatments, providing valuable insights for clinical and policy decisions.

Posted on

Management of intracavitary bleeding during ultra-early minimally invasive intracerebral hemorrhage evacuation

J Neurosurg 142:1003–1013, 2025

Ultra-early minimally invasive endoscopic evacuation of intracerebral hemorrhage within 5 hours increases intraoperative bleeding but does not elevate risks of postoperative rebleeding or worsen long-term outcomes, suggesting safe exploration of its clinical benefits with proper techniques.

• Objective: The study examines the management of intracavitary bleeding during ultra-early minimally invasive intracerebral hemorrhage evacuation.

• Methodology: Patients with spontaneous supratentorial ICH were triaged for surgical evacuation using a 5-point intraoperative bleeding scale.

• Findings: Ultra-early evacuation within 5 hours is associated with increased intraoperative bleeding but not with postoperative rebleeding or worse long-term outcomes.

• Bleeding Scale: A score of 1 indicates no active bleeding, while a score of 5 indicates severe bleeding requiring extensive irrigation and cauterization.

• Results: Ultra-early evacuation had a mean bleeding score of 4.9, compared to 2.3 for evacuations conducted 5 to 10 hours after ictus.

• Conclusion: The benefits of ultra-early evacuation can be explored without increased risk of postoperative rebleeding using minimally invasive endoscopic techniques.

• Significance: The study supports the safety and feasibility of early evacuation strategies in improving functional outcomes for ICH patients.

Posted on

Risk of late radiation necrosis more than 5 years after stereotactic radiosurgery

J Neurosurg 142:1117–1124, 2025

This study investigates late radiation necrosis (LRN) occurring over 5 years post-stereotactic radiosurgery (SRS). It identifies risk factors, management strategies, and emphasizes the need for long-term follow-up, particularly for patients with a brain V12 Gy > 5 cm³ or history of early RN.

• Late Radiation Necrosis (LRN): LRN is a late complication occurring more than 5 years after stereotactic radiosurgery (SRS) and is associated with new neurological symptoms and specific imaging changes without disease recurrence.

• Study Objective: This study analyzes the incidence and risk factors for LRN occurring more than 5 years after SRS, highlighting that LRN risk persists beyond 5 years.

• Risk Factors: Significant risk factors for LRN include a brain V12 Gy > 5 cm³ and a history of early RN. Higher prescription doses and treatment to multiple lesions also increase LRN risk.

• Incidence and Management: LRN occurred in 8.7% of patients and 7.7% of lesions, with a median onset of 6.1 years post-SRS. Management included steroids, bevacizumab, and surgical resection when necessary.

• Imaging Features: LRN lesions showed T2/FLAIR hyperintensity, cystic changes, and T1-weighted postcontrast enhancement.

• Pathophysiology: LRN shares a similar pathophysiology with early RN, but with distinct features like cystic changes.

Posted on

The Rate and Risk Factors of Deep Brain Stimulation–Associated Complications

Operative Neurosurgery 28:519–527, 2025

The study investigates complications associated with deep brain stimulation (DBS) surgery, analyzing patient demographics, surgical techniques, and outcomes. It identifies factors influencing complications such as pneumocephalus, infection, and hemorrhage, aiming to improve patient selection and surgical strategies for better outcomes.

• Deep Brain Stimulation (DBS) is a recognized neurosurgical procedure for various neurological disorders, considered safe but not without complications. The study investigates these complications and their association with patient characteristics and surgical techniques.

• The study analyzed 481 patients who underwent DBS lead implantation between January 2012 and January 2020, with a total of 859 leads implanted.

• Common complications included pneumocephalus, edema, altered mental state, and infection. General anesthesia, hypertension, heart disease, and depression were linked to longer postoperative stays.

• High BMI was associated with increased rates of surgery-related infections and lead revision/explantation.

• Intraoperative mean arterial pressure and anesthesia type were significant predictors of postoperative pneumocephalus.

• The study found that certain comorbidities, such as hypertension, heart disease, and depression, were associated with longer hospital stays.

• Older patients were less likely to require lead revision/explantation, while those with high BMI were at higher risk.

• Infection prevention techniques, like vancomycin powder, were effective, with infection rates at the lower end of the reported range.

Posted on

Predictors of trigeminal neuropathy in patients receiving Gamma Knife stereotactic radiosurgery for vestibular schwannoma

J Neurosurg 142:1134–1140, 2025

The study investigates predictors of trigeminal neuropathy (Tn) in patients receiving Gamma Knife stereotactic radiosurgery for vestibular schwannoma. It identifies the volume of cranial nerve V receiving ≥11 Gy as a significant factor in Tn development, suggesting it be included in dosimetric planning to minimize risk.

• Objective: Validate predictors of trigeminal neuropathy (Tn) in patients receiving stereotactic radiosurgery (SRS) for vestibular schwannoma (VS).

• Methodology: Study included 204 patients treated with SRS, excluding those with pre-existing Tn symptoms or less than 2 years of follow-up.

• Key Finding: The volume of cranial nerve (CN) V receiving ≥ 11 Gy is the only significant predictor of Tn development post-SRS.

• Results: 11.3% of patients developed Tn, with 7.8% experiencing permanent symptoms.

• Statistical Analysis: Maximum dose to CN V was significant in univariate analysis but not in multivariate analysis.

• Tumor Compression: Not significantly correlated with Tn development.

• Clinical Implication: Dosimetric planning should account for CN V volume receiving ≥ 11 Gy to minimize Tn risk.

• Recommendation: Early treatment advised to maintain gap between VS and CN V, reducing Tn risk.

Posted on

Feasibility of Robotic Transorbital Surgery

Operative Neurosurgery 28:506–510, 2025

This study explores the feasibility of robotic-assisted lateral transorbital surgery for accessing Meckel cave. Challenges include tool size and limited entry space, though internal surgical space is adequate. Future advancements in smaller, haptic-enabled tools could enhance the practicality of this approach.

• The study explores the feasibility of robotic-assisted lateral transorbital approach (LTOA) using the DaVinci Xi model for neurosurgery.

• Six cadaver heads were used for dissection to evaluate tool insertion and movement.

• The current robotic tools are too large for effective LTOA, limiting the insertion to one tool and a camera.

• Removing the lateral orbital rim (LOR) provides more space but still limits tool usage due to size constraints.

• There is potential for LTOA with smaller, more precise tools in the future, offering a wide surgical field around Meckel cave.

• The study highlights the need for development of narrower robotic instruments and haptic feedback systems for better surgical outcomes.

• Multiportal techniques, like adding a transnasal portal, could enhance tool use, but haptic feedback remains a critical need.

Posted on

The Transtemporal Isthmus Approach for Insular Glioma Surgery

Operative Neurosurgery 28:478–486, 2025

This study presents a transtemporal isthmus approach for insular glioma surgery, achieving maximal safe resection. This method utilizes a widened temporal isthmus to access the insular lobe, ensuring significant tumor removal while preserving neurological function. The approach is shown effective for both low- and high-grade gliomas.

• The study introduces a transtemporal isthmus approach for the resection of insular gliomas, aiming for maximal and safe tumor removal.

• This surgical method involves the use of MRI and functional neuronavigation guidance, along with intraoperative electrophysiological monitoring.

• The approach is particularly beneficial for tumors involving zones III and IV of the Berger-Sanai classification.

• Gross total resection was achieved in 64.9% of low-grade and 87.5% of high-grade gliomas.

• The temporal isthmus is widened by the tumor, providing a surgical corridor for resection.

• The median postoperative Karnofsky performance score was 90, indicating good functional preservation.

• Muscle strength and speech were nearly normal in all patients three months post-surgery.

• The study suggests this approach is effective for safe and maximal tumor resection, while preserving essential functions.

Posted on

Has a fast treatment transition from surgical to endovascular operations improved the survival of aneurysmal subarachnoid hemorrhage?

Acta Neurochirurgica (2025) 167:34

The study examines the impact of transitioning from surgical to endovascular treatment for aneurysmal subarachnoid hemorrhage (aSAH) at Helsinki University Hospital. Findings suggest that case fatality rate (CFR) reductions may be more attributable to other factors than the treatment shift.

• The study investigates the effects of a rapid transition from surgical to endovascular treatment on case fatality rates (CFRs) of aneurysmal subarachnoid hemorrhage (aSAH) at Helsinki University Hospital (HUH).

• The transition to endovascular treatment occurred in 2015, with two treatment eras defined: surgical (2012–2014) and endovascular (2015–2017).

• Results showed a significant increase in endovascular treatment for non-MCA cases and a consistent surgical treatment for MCA cases, with similar decreases in 1-year CFRs for both groups.

• The study concludes that the independent effect of endovascular treatment on decreasing CFRs is small, suggesting improvements in other factors such as diagnostic modalities and acute care may have contributed more.

• The study highlights the need for a case-specific approach in treating aSAH, as different aneurysm locations may benefit differently from surgical or endovascular treatments.

• The research emphasizes the importance of considering other outcome-related factors in addition to treatment modality when analyzing CFR trends.

Posted on

Microsurgical anatomy and the inner architecture of the retrocommissural portion of the hippocampal formation demonstrated through fiber microdissection

J Neurosurg 142:1085–1098, 2025

The study explores the complex anatomy of the retrocommissural portion of the hippocampal formation (RHF) using fiber microdissection. It clarifies nomenclature, describes the RHF’s structures and spatial relations, and provides insights for surgical approaches in the mediobasal temporal region.

• Objective: The study aims to clarify the complex nomenclature and 3D spatial relations of the retrocommissural portion of the hippocampal formation (RHF) for surgical purposes.

• Methods: Fiber microdissection was performed on 20 formalin-fixed human brains to study the RHF’s topography and internal structure.

• Results: The RHF is divided into head, body, and tail sections, each with distinct intra- and extraventricular configurations.

• Components: The RHF includes the hippocampus (Ammon’s horn and dentate gyrus), subiculum, and related white matter fibers.

• Surgical Challenges: The RHF’s complex architecture and location present challenges for surgical approaches, necessitating a detailed anatomical understanding.

• Terminology: The study addresses inconsistencies in terminology, emphasizing the importance of clear definitions for surgical planning.

• Conclusion: Detailed anatomical knowledge of the RHF enhances surgical strategies for lesions in the mediobasal temporal region.

Posted on

Artificial intelligence as a modality to enhance the readability of neurosurgical literature for patients

J Neurosurg 142:1189–1195, 2025

The study evaluates ChatGPT 3.5 and GPT4’s ability to generate readable, accurate summaries of neurosurgical literature, enhancing patient comprehension. GPT4 showed higher readability and accuracy, suggesting its potential in improving patient education and bridging the gap between medical findings and public understanding.

Study Overview

• Objective: Assess ChatGPT’s ability to generate readable, accurate neurosurgical summaries.

• Methods: Analyzed 150 abstracts from top neurosurgical journals.

• Models Used: GPT3.5 and GPT4.

Findings

• Readability Improvement: GPT4 summaries more readable than original abstracts.

• Scientific Accuracy: 84.2% of GPT4 summaries maintained moderate accuracy.

• Readability Metrics: GPT4 outperformed GPT3.5 in multiple readability scores.

Implications

• Patient Education: GPT4 can enhance neurosurgical literature comprehension for patients.

• Health Literacy: Potential to improve health literacy nationwide.

Limitations and Future Research

• Accessibility: GPT4’s restricted access limits broader application.

• Future Studies: Explore GPT4’s use in other medical specialties.

Posted on

Laser interstitial thermal therapy for cavernous malformations: a meta-analysis of individual patient-level data

J Neurosurg 142:1014–1024, 2025

Laser interstitial thermal therapy (LITT) shows promise for treating cavernous malformations, offering high seizure freedom rates and significant CM volume reduction. Immediate neurological deficits are a risk but often transient. Further research is needed for long-term outcomes and safety validation.

• Study Objective: Evaluate laser interstitial thermal therapy (LITT) for cavernous malformations (CMs).

• Methodology: PRISMA-compliant systematic review and patient-level data meta-analysis.

• Patient Demographics: 39 patients, 28 with epilepsy, treated at six centers.

• Seizure Freedom Rate: 88% at last follow-up for epilepsy patients.

• Immediate Postoperative Deficits: 15.4% experienced transient neurological deficits.

• CM Volume Reduction: 73.7% for epileptogenic, 53.8% for nonepileptogenic CMs.

• No Perioperative Hemorrhage: No reported hemorrhages during or after procedures.

• Study Limitations: Small patient cohort, limited follow-up time.

• Predictors of Seizure Freedom: No significant predictors identified.

• Adverse Events Analysis: No significant predictors for adverse events post-LITT.

• Radiographic Outcomes: No significant differences based on CM location.

• Pooled Effect Size Analysis: Frequentist and Bayesian models used for volume reduction estimates.

• Future Research Needs: Larger cohorts and longer follow-up required for validation.

Posted on

Is It Justified to Sacrifice the Pituitary Stalk During Craniopharyngioma Surgery? A Systematic Review and Meta-Analysis

Neurosurgery 96:725–733, 2025

This systematic review and meta-analysis examined the impact of pituitary stalk sacrifice during craniopharyngioma surgery. It found that sacrificing the stalk significantly increases the risk of postoperative endocrine dysfunction without reducing tumor recurrence or progression, highlighting the importance of preserving the stalk when possible.

• Pituitary stalk sacrifice increases risk of endocrine dysfunction without reducing recurrence risk.

• Preservation of the pituitary stalk is recommended whenever possible.

• Fourteen studies with 2074 patients were included in the meta-analysis.

• Stalk sacrifice associated with higher endocrine dysfunction risk (OR = 6.69, P < .0001).

• No significant decrease in recurrence risk with stalk sacrifice (OR = 0.80, P = .13).

• Retrospective studies were included, no randomized trials.

• Endoscopic endonasal and transcranial approaches were evaluated.

• Molecular biology factors like β-catenin mutations affect recurrence risk.

• Confounding factors like age and preoperative endocrinopathy impact outcomes.

• Future prospective studies recommended to assess confounding factors.

• Stalk preservation linked to better outcomes in normal preoperative endocrine function.

• Radiation therapy recommended post-GTR for β-catenin positive cases to prevent progression.

• Stalk preservation does not increase recurrence/progression risk according to multiple studies.

Posted on

Multinuclear thalamic targeting with human stereotactic electroencephalography

J Neurosurg 142:936–944, 2025

The study details a novel stereotactic electroencephalography (sEEG) approach targeting thalamic nuclei for personalized epilepsy treatment. It describes surgical techniques for sampling thalamic regions, aiming to improve neuromodulation strategies. The focus is on minimizing electrodes and maximizing cortical and subcortical coverage.

Multinuclear Thalamic Targeting with sEEG

• Novel sEEG approach identifies personalized seizure networks in the thalamus.

• Multilead orthogonal and trans-massa intermedia trajectories efficiently sample thalamic nuclei.

• Long-axis trajectory samples lateral PLV, MD, and ANT with a single electrode.

• Approaches resulted in no complications in 34 patients.

• Thalamic nuclei are crucial for neuromodulation in refractory epilepsy.

• DBS of thalamic nuclei shows heterogeneous patient responses.

Surgical Techniques and Trajectories

• Orthogonal trajectories maximize mediolateral thalamic coverage.

• Trans-massa intermedia approach samples bilateral MD nuclei with a single electrode.

• Long-axis trajectory samples ANT, MD, and PLV in a single plane.

• Extraventricular trajectories optimize thalamic coverage and safety.

Patient Selection and Outcomes

• 34 patients with drug-resistant epilepsy underwent sEEG implantation.

• Postoperative analysis showed millimetric accuracy in electrode placement.

• No thalamic hemorrhage or edema observed postoperatively.

Posted on

Implementation of high-definition fiber tractography for preoperative evaluation and surgical planning of brainstem cavernous malformation

J Neurosurg 142:968–976, 2025

The study discusses the use of high-definition fiber tractography (HDFT) in the surgical planning and resection of brainstem cavernous malformations, highlighting its role in reducing postoperative deficits and improving patient outcomes by accurately delineating white matter tracts and optimizing surgical approaches.

• High-definition fiber tractography (HDFT) is implemented for preoperative planning in brainstem cavernous malformations (BSCM) to improve surgical outcomes.

• Study Objective: Evaluate the role and long-term outcomes of HDFT in the surgical management of BSCMs.

• Methods: Retrospective evaluation of 11 patients who underwent HDFT and microsurgical resection.

• Results: Gross-total resection achieved in 72.7% of patients; no new permanent neurological deficits reported.

• HDFT Benefits: Provides critical anatomical information, decreases morbidity, and aids in defining eloquent perilesional boundaries.

• Challenges: Unpredictable displacement of white matter tracts by cavernomas necessitates tailored surgical approaches.

• Limitations: Small sample size, single-center study, and restricted MRI compatibility.

• Conclusion: HDFT is a pivotal tool for safer, more effective resection of BSCMs, warranting further prospective studies.

Proudly powered by WordPress