Publications by authors named "Marco Mammi"

Background: The incidence of dural venous sinus thrombosis (DVST) following vestibular schwannoma (VS) surgery remains understudied. The diverse clinical presentation complicates forming anticoagulation treatment guidelines. This meta-analysis aimed to investigate the incidence of DVST post-VS surgery and to evaluate the role of anticoagulation.

View Article and Find Full Text PDF

Purpose: Glioblastomas, the most common primary malignant brain tumors in adults, still hold poor prognosis. Corticosteroids, such as dexamethasone, are usually prescribed to reduce peritumoral edema and limit neurological symptoms, although potential detrimental effects of these drugs have been described. The present meta-analysis aimed to explore the association of dexamethasone with overall survival (OS) and progression free survival (PFS) in patients with newly diagnosed glioblastoma.

View Article and Find Full Text PDF

Purpose: To compare the safety and efficacy of minimally invasive surgery (MIS) and open surgery (OS) in treating cauda equina syndrome (CES).

Methods: A systematic literature search was conducted, searching relevant databases for studies investigating MIS and/or OS in treating CES. Pooled outcomes and their 95% confidence intervals (CIs) were meta-analyzed via random-effects models.

View Article and Find Full Text PDF

Background: Meningiomas are common intracranial tumors. Machine learning (ML) algorithms are emerging to improve accuracy in 4 primary domains: classification, grading, outcome prediction, and segmentation. Such algorithms include both traditional approaches that rely on hand-crafted features and deep learning (DL) techniques that utilize automatic feature extraction.

View Article and Find Full Text PDF

Background: Neurosurgeons, especially spine surgeons, have the highest risk of facing a malpractice claim. Average verdicts in spine surgery litigation has been shown to be over USD $1 million/case. This systematic review aimed to clarify the impact of tort reforms on neurosurgical health care environments across the United States, including patient outcomes, practice of defensive medicine, and physician supply aims.

View Article and Find Full Text PDF

Background: Laser interstitial thermal therapy (LITT) is a minimally invasive treatment option for intracranial tumors that are challenging to treat via traditional methods; however, its safety and efficacy are not yet well validated in the literature. The objectives of the study were to assess the available evidence of the indications and adverse events (AEs) of LITT and 1-year progression-free survival and 1-year overall survival in the treatment of primary and secondary brain tumors.

Methods: A comprehensive literature search was conducted through the databases PubMed, Embase, and the Cochrane Library until October 2021.

View Article and Find Full Text PDF

Accurate brain meningioma segmentation and volumetric assessment are critical for serial patient follow-up, surgical planning and monitoring response to treatment. Current gold standard of manual labeling is a time-consuming process, subject to inter-user variability. Fully-automated algorithms for meningioma segmentation have the potential to bring volumetric analysis into clinical and research workflows by increasing accuracy and efficiency, reducing inter-user variability and saving time.

View Article and Find Full Text PDF

Objective: Surgery and radiosurgery represent the most common treatment options for vestibular schwannoma. A systematic review and meta-analysis were conducted to compare the outcomes of surgery versus stereotactic radiosurgery (SRS).

Methods: The Cochrane library, PubMed, Embase, and clinicaltrials.

View Article and Find Full Text PDF

Background: The purpose of this meta-analysis was to compare efficacy and safety of direct oral anticoagulants (DOACs) to warfarin for secondary stroke prevention among adult patients with atrial fibrillation and prior stroke.

Methods: Major repositories were screened for randomized controlled trials (RCTs), RCT subgroups, and observational studies (OBSs, divided in claims and non-claims). Occurrences of ischemic stroke or transient ischemic attack, systemic embolism, all-cause mortality, intracranial hemorrhage (ICH), and major bleeding were outcomes of interest.

View Article and Find Full Text PDF

When discussing "mentalization," we refer to a very special ability that only humans and few species of great apes possess: the ability to think about themselves and to represent in their mind their own mental state, attitudes, and beliefs and those of others. In this review, a summary of the main cortical areas involved in mentalization is presented. A thorough literature search using PubMed MEDLINE database was performed.

View Article and Find Full Text PDF

Radiculomedullary artery malformations are rare conditions: their rupture usually manifests with subarachnoid hemorrhage. To the best of our knowledge no cases of subdural bleeding have been described in the literature. We present the rare case of a 74 year old woman admitted to our Institute with sudden onset of right lower limb motor deficit and hypoesthesia, with no history of trauma: Magnetic Resonance Imaging of the dorsal spine was performed and a subdural hematoma was detected; subsequent dorsal laminectomy for hematoma evacuation was carried out.

View Article and Find Full Text PDF

Intradural Extramedullary (IDEM) tumors are usually treated with surgical excision. The aim of this study was to investigate the impact on clinical outcomes of pre-surgical clinical conditions, intraoperative neurophysiological monitoring (IONM), surgical access to the spinal canal, histology, degree of resection and intra/postoperative complications. This is a retrospective observational study analyzing data of patients suffering from IDEM tumors who underwent surgical treatment over a 12 year period in a double-center experience.

View Article and Find Full Text PDF

Chronic Subdural Hematoma (CSDH) is a common condition in the elderly population. Recurrence rates after surgical evacuation range from 5 to 30%. Factors predicting recurrence remain debated and unclear.

View Article and Find Full Text PDF

Anticoagulant therapy poses a significant risk for patients undergoing emergency neurosurgery procedures, necessitating reversal with prothrombin complex concentrate (PCC) or fresh frozen plasma (FFP). Data on PCC efficacy lack consistency in this setting. This systematic review and metaanalysis aimed to evaluate efficacy and safety of PCC for anticoagulation reversal in the context of urgent neurosurgery.

View Article and Find Full Text PDF

Background: Gliomas are the most common malignant primary brain tumors. Assessment of the tumor volume represents a crucial point in preoperative and postoperative evaluation.

Objective: To compare pre- and postoperative tumor volumes obtained with an automated, semi-automatic, and manual segmentation tool.

View Article and Find Full Text PDF

Treatment options for hydrocephalus include endoscopic third ventriculostomy (ETV) and ventriculoperitoneal shunt (VPS). Some ambiguity remains regarding indications, safety, and efficacy for these procedures in different clinical scenarios. The objective of the present study was to pool the available evidence to compare outcomes among patients with hydrocephalus undergoing ETV versus VPS.

View Article and Find Full Text PDF
Article Synopsis
  • PD-L1 expression in non-small cell lung cancer (NSCLC) is believed to help predict patient response to PD-1/PD-L1 inhibitors, but its effect on patients with brain metastases (BMs) was unclear before this study.
  • This research analyzed 48 patients with NSCLC-BMs who were treated with these inhibitors, finding that positive PD-L1 expression correlated with improved overall survival (OS). Specifically, higher percentages of PD-L1 expression linked to better survival outcomes.
  • However, the study revealed that PD-L1 expression did not predict intracranial progression-free survival (IC-PFS), suggesting that while it may have a role in overall survival, its impact on disease progression within the brain is less certain.
View Article and Find Full Text PDF

In spinal oncology traditional titanium implants could significantly impair evaluation of postoperative imaging because of artifacts, potentially affecting proper planning and execution of radiotherapy and adequate radiological follow-up to rule out progression of the disease. This is why carbon fiber reinforced (CFR)-PEEK implants have been developed for spinal fixation. The advantages of this system include fewer artifacts on imaging, potentially improving the execution and quality of radiotherapy, with also a reduced scattering effect to neighboring tissues.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to evaluate the patterns of postoperative systemic therapy (ST) use and its impact on patient outcomes after surgically removing a solitary breast cancer brain metastasis (BCBM).
  • A review of 44 patients indicated that those receiving ST had significantly longer progression-free survival (PFS) and overall survival (OS), particularly ER+ patients who benefited from hormonal therapy.
  • Results showed that more patients experienced intracranial progression rather than extracranial, and HER2-targeted therapy did not provide a survival advantage in HER2+ patients, highlighting the need for further research with larger groups.
View Article and Find Full Text PDF

The use of cortical bone trajectory (CBT) pedicle screws for posterior fixation and fusion seems to constitute a viable alternative for spinal procedures, with the potential to mitigate risks, be minimally invasive, and cause less tissue damage than the traditional technique. This review analyzes the literature regarding CBT according to the rate of evidence of articles and their main focus. CBT has proved to be a safe and viable option for screw fixation in spine surgery.

View Article and Find Full Text PDF

Objectives: Major spinal corrective surgeries can be associated with critical intra-operative blood loss. The objective of this systematic review and meta-analysis was to assess the safety and efficacy of tranexamic acid (TXA), a commonly used antifibrinolytic agent, in adult spinal deformity (ASD) surgery, defined as fusion of five or more levels.

Methods: Articles from PubMed, Embase, Cochrane, and clinicaltrials.

View Article and Find Full Text PDF

Background: The use of antiepileptic drugs (AEDs) to prevent early posttraumatic seizure (PTS) for patients with severe traumatic brain injury (TBI) is currently recommended, although published studies present contradictory results concerning the protective effect of AEDs.

Objective: The purpose of this study was to quantify the association between the use of prophylactic AEDs, particularly of the 4 main drugs of interest (phenytoin, levetiracetam, valproate, or carbamazepine) versus placebo or no treatment, and risk of early seizures after TBI.

Methods: A comprehensive search was performed on PubMed, Embase, Cochrane Library, and ClinicalTrials.

View Article and Find Full Text PDF
Article Synopsis
  • Neurophysiological monitoring helps keep patients safe during brain and spinal surgeries by checking how their nerves are working.
  • The most common methods used during spinal surgeries are somatosensory evoked potentials (SSEPs), motor evoked potentials (MEPs), and different types of electromyography.
  • This review explains how these techniques work, their advantages and limits, and why they are especially important during less invasive surgeries where the doctor can’t see everything clearly.
View Article and Find Full Text PDF

Prognostic factors for high-grade gliomas include patient age, IDH1 mutation, MGMT methylation, and Ki67 value. We assessed the predictive role of topographic location of gliomas for their biological signatures. Collecting all neuroradiological and histological data of patients with histologically proven HGG, we performed a retrospective monocentric study.

View Article and Find Full Text PDF