Giannantonio Spena

Policlinico San Matteo Pavia Fondazione IRCCS | San Matteo · Neurosurgery

OBJECTIVE Infradiaphragmatic craniopharyngiomas (ICs) represent a distinct subtype, harboring a sellar-suprasellar origin and generally growing in the extra-arachnoidal space contained by the diaphragma sellae. They have been considered ideal for surgical removal through the transsphenoidal approach since the 1960s. The authors present a multicentr...

Background People with gliomas need specialized neurosurgical, neuro-oncological, psycho-oncological, and neuropsychological care. The role of language and cognitive recovery and rehabilitation in patients’ well-being and resumption of work is crucial, but there are no clear guidelines for the ideal timing and character of assessments and intervent...

Background In the recent years, growing interest in simulation-based surgical education has led to various practical alternatives for medical training. More recently, courses based on virtual reality (VR) and three-dimensional (3D)-printed models are available. In this paper, a hybrid (virtual and physical) neurosurgical simulator has been validate...

Glioblastoma are the most common primary malignant brain tumors with a highly infiltrative behavior. The extent of resection of the enhancing component has been shown to be correlated to survival. Recently, it has been proposed to move the resection beyond the contrast-enhanced portion into the MR hyper intense tissue which typically surrounds the...

Background: In recent years there have been significant advances in the diagnosis, management and treatment of intracranial aneurysms (IAs) in Italy. Changes in prevalence of several epigenetic risk factors in the population as well as in environmental factors may have influenced the epidemiological burden of this disease. No long-term, population...

Background Lombardy was the most affected Italian region by the first phase of the COVID-19 pandemic and underwent urgent reorganization for the management of emergencies, including subarachnoid hemorrhage from a ruptured cerebral aneurysm (aSAH). The aim of the study was to define demographics, clinical, and therapeutic features of aSAH during the...

Modern medicine is witnessing an epochal change due, on the one hand, to the unprecedented technological advancement of these recent decades. On the other hand, in the western world the need for hyper-specialized and “infallible” physicians is continuously growing, whereas a large part of the less developed world struggles for having basics cures....

Introduction: The simultaneous presence of multiple foci of high-grade glioma is a rare condition with a poor prognosis. By definition, if an anatomical connection through white matter bundles cannot be hypothesized, multiple lesions are defined as multicentric glioma (MC); on the other hand, when this connection exists, it is better defined as mu...

Neurological disorders significantly impact the world's economy due to their often chronic and life-threatening nature afflicting individuals which, in turn, creates a global disease burden. The Group of Twenty (G20) member nations, which represent the largest economies globally, should come together to formulate a plan on how to overcome this burd...

Background An appreciation for complex three-dimensional relationships in neuroanatomy forms a fundamental tenet of neurosurgical education. The value of experience in the cadaver lab is indisputable; however, it is expensive and often inaccessible. The wide availability of 3D technologies has opened new possibilities, although scientific inaccurac...

Background Different surgical approaches have been developed to manage lesions of the anterior and middle skull base areas. Frontal, pterional, bifrontal, and fronto-orbito-zygomatic approaches are traditionally used to reach these regions. With advancements in the neurosurgical field, skull opening should be simple and as minimally invasive as pos...

surgical indications for cerebral cavernous malformations remain significantly center-and surgeon-dependent. available grading systems are potentially limited, as they do not include epileptological and radiological data. a novel grading system is proposed for supratentorial and cer-ebellar cavernomas: it considers neuroradiological features (bleed...

Study design: Retrospective multicenter. Objectives: diffuse idiopathic skeletal hyperostosis (DISH) involving the cervical spine is a rare condition determining disabling aero-digestive symptoms. We analyzed impact of preoperative settings and intraoperative techniques on outcome of patients undergoing surgery for DISH. Methods: Patients with...

Objective: Approximately half of glioblastoma (GBM) cases develop in geriatric patients, and this trend is destined to increase with the aging of the population. The optimal strategy for management of GBM in elderly patients remains controversial. The aim of this study was to assess the role of surgery in the elderly (≥ 65 years old) based on clin...

Background and purpose: Adult brainstem gliomas are rare primary brain tumours with heterogeneous clinical course. The low frequency of these tumours makes it difficult to achieve high-quality evidence regarding prognostic factors, adequate therapeutic approach and outcome in such patients. Methods: In this retrospective study, we analysed clini...

Background Awake surgery has become a key treatment of diffuse low-grade gliomas (DLGG) and is divided in three main phases: opening, tumor resection – during which the patient needs to be fully awake – and closure. The anesthetic management of awake neurosurgery is a challenge, and there are currently no guidelines.Objective The objective of the s...

Surgical removal of accessible lesions is the only direct therapeutic approach for cerebral cavernous malformations (CCMs). The approach should be carefully evaluated according to clinical, anatomical, and neuroradiological assessment in order to both select the patient and avoid complications. In selected cases, a quantitative anatomical study wit...

The Coronavirus (COVID 19) pandemic has fast spread throughout the world in more than 200 countries, resulting in the need for a de-prioritization of elective medical care to face the demands of the global health crisis. Although the acute and catastrophic phase of the pandemic seems to have been left behind, it is also clear that the virus will no...

In 2018 the SINch (Italian Society of Neurosurgery) Neuro-Oncology section, AINO (Italian Association of Neuro-Oncology) and SIN (Italian Association of Neurology) Neuro-Oncology section formed a collaborative Task Force to look at the diagnosis and treatment of low-grade gliomas (LGGs). The Task Force included neurologists, neurosurgeons, neuro-on...

Awake surgery is a well-defined procedure with a very low morbidity. In particular, stimulation-related intraoperative seizure (IOS) is a commonly discussed and serious complication associated with awake surgery. Here, we reviewed the literature on awake surgery and IOS and sought to obtain evidences on the predictive factors of IOS and on the effe...

Background: Acquisition of neurosurgical anatomy knowledge requires the progressive construction of a three-dimensional (3D) mental image from the study of 2D pictures. Tridimensional neuroimaging modeling and 3D pictures and videos have facilitated a better understanding of intricate brain anatomy. One of the main limitations of these methods how...

Understanding of the Chiari malformation type I (CMI) has evolved over time thanks to accumulated surgical experiences, neuroradiological refinements, and better comprehension of pathophysiology. CMI is defined as a descent of the cerebellar tonsils into the cervical canal due to a volumetric disproportion between the posterior fossa and cerebellar...

We present the case of an immunocompetent 55-year-old woman, treated with corticosteroids, developing a cerebral fungal infection with autoptic ascertainment of aspergillosis and mucormycosis. This is the first report of cerebral co-infection by mucorales and aspergillus in an immunocompetent host. A possible explanation is that corticosteroids, ev...

Introduction: During surgery for lesions in eloquent areas the goal is to achieve the widest resection possible, without loss of neurological function. Intraoperative seizures may lead to abandonment of the procedure or damages to the patient. Awareness regarding the predictors of IOS would help the surgeon. The aim of this retrospective study was...

BACKGROUND Patients diagnosed with high grade gliomas (HGG) usually receive surgery, radiation, temozolomide (TMZ) and corticosteroids. A major concern in patients who receive chemoradiotherapy (CRT) is the risk of developing secondary myelosuppression and a related infection during treatment. CRT may also lead to a long-lasting reduction of WBC, a...

Background Because of the restricted volume of the cisternal space, proper patient positioning on the operating table is of utmost importance during surgery by retrosigmoid approaches. Three positions are commonly used: supine, with the head rotated to the side contralateral to the lesion; the semi-sitting position; and the park bench position. Eac...

Purpose: The practical management of cavernous angioma located within eloquent brain area before, during and after surgical resection is poorly documented. We assessed the practical pre-operative, intra-operative, and post-operative management of cavernous angioma located within eloquent brain area. Method: An online survey composed of 61 items...

Background and importance: The rosette-forming glioneuronal tumor (RGNT) is a rare central nervous system tumor which often arises intraventricularly. We report the first surgical case of an RGNT arising from the Sylvian aqueduct treated through a double approach. Clinical presentation: A 25-year-old female presented with triventricular hydrocephal...

Objective: To evaluate the feasibility of transcranial sonography in patients harboring polymethylmethacrylate cranioplasties (PMMA-CP) and explore whether this material is a valid sonic window to explore intracerebral structures. Methods: In 6 patients, we performed transcranial sonography (TCS), using the PMMA-CP as sonic window. To test the r...

BACKGROUND The postoperative outcomes and the predictors of seizure control are poorly studied for supratentorial cavernous angiomas (CA) within or close to the eloquent brain area. OBJECTIVE To assess the predictors of preoperative seizure control, postoperative seizure control, and postoperative ability to work, and the safety of the surgery. M...

Objective: Three-dimensional (3D), high-definition (HD) endoscopy has been recently introduced in neurosurgery, and its value has been discussed extensively in endonasal skull base surgery. Because there has been no reported clinical series on the use of a recent 3D-HD ventriculoscope, the aim of this study was to describe our initial experience w...

INTRODUCTION The postoperative outcomes and the predictors of seizure control are poorly documented for supratentorial cavernous angiomas within or close to eloquent brain area. We assessed the predictors of preoperative and postoperative seizure control and ability to work, and the safety of the surgery. METHODS Multicenter international retrospe...

Background: The role of single nucleotide polymorphisms (SNPs) in TP53 in the pathogenesis of glioma is debated. The aim of our study was to investigate the role of several TP53 SNPs in the risk of glioma and their possible role as prognostic biomarkers of overall and progression-free survival. Methods: We examined 12 SNPs in TP53 from periphera...

Objective: In this prospective study, we assessed the utility of a novel prognostic score (PS) in guiding the surgical strategy of patients with sensorimotor area gliomas. Patients and methods: Form December 2012 to April 2016, we collected data from patients diagnosed with brain gliomas in the sensorimotor area. All the patients had intraoperat...

OBJECTIVE: In this prospective study, we assessed the utility of a novel prognostic score (PS) in guiding the surgical strategy of patients with sensorimotor area gliomas. PATIENTS AND METHODS: Form December 2012 to April 2016, we collected data from patients diagnosed with brain gliomas in the sensorimotor area. All the patients had intraoperativ...

We analyzed the outcomes of patients with large cerebellopontine angle (CPA) tumors treated by a skull-base team in which two surgeons (one neurosurgeon and one otological surgeon) were in the beginning of their careers (<40 years old). Data of patients operated on between April 2012 and March 2016 were reviewed. All factors related to surgical tra...

ID 325 The necessity of theory-driven written language assessment in awake glioma surgery

Etiopathogenesis and physiopathology of gliomas are largely unknown. Recently, many authors have proved a strict correlation between the velocity of diametric expansion (VDE) on the Magnetic Resonance Imaging (MRI) and the biological behavior of these tumors, especially in Low Grade Gliomas (LGGs). Unfortunately, natural history of High Grade Gliom...

Background The European Low-Grade Glioma network indicated a need to better understand common practices regarding the managing of diffuse low-grade gliomas. This area has experienced great advances in recent years. Method A general survey on the managing of diffuse low grade gliomas was answered by 21 centres in 11 European countries. Here we foc...

Objectives: To estimate the prevalence rate of silent cranial and intracranial lesions in a series of Ollier-Maffucci patients. Patients and methods: Cerebral MRI was routinely performed in Ollier-Maffucci patients followed-up in our tertiary centers. Patients with previous history of skull base or intracranial tumors were excluded from the stud...

Introduction: Intraoperative application of electrical current to the brain is a standard technique during brain surgery for inferring the function of the underlying brain. The purpose of intraoperative functional mapping is to reliably identify cortical areas and subcortical pathways involved in eloquent functions, especially motor, sensory, lang...

Intraoperative mapping and monitoring techniques for eloquent area tumors are routinely used world wide. Very few data are available regarding mapping and monitoring methods and preferences, intraoperative seizures occurrence and perioperative antiepileptic drug management. A questionnaire was sent to 20 European centers with experience in intraope...

Neurosurgical mapping studies with nouns and finite verbs are scarce and subcortical data are non-existent. We used a new task that uses finite verbs in six Italian-speaking patients with gliomas in the left language-dominant hemisphere. Language-relevant positive areas were detected only with nouns in four patients, with both tasks yet in distinct...

http://www.upsurgeon.com/component/content/article/13-theory/pathology/40-brain-gliomas-in-adults-basic-concepts?Itemid=101

Diffuse low-grade glioma form a rare entity affecting young people. Despite advances in surgery, chemotherapy, and radiation therapy, diffuse low-grade glioma are still incurable. According to current guidelines, maximum safe resection, when feasible, is the first line of treatment. Apart from surgery, all other treatment modalities (temozolomide,...

Introduction: Second line treatment of recurrent or progressive glioblastoma multiforme (GBM) is not standardized. Anti-angiogenic strategies with tyrosine-kinase inhibitors have been tested with conflicting results. We tested the association of sunitinib (S) plus irinotecan (CPT-11) in a phase II trial in terms of response rate (RR) and 6-months...

Introduction Dural arteriovenous fistulas (DAVFs) is a challenging condition in vascular neurosurgery. Development of new endovascular techniques has progressively modified treatment strategies; however, surgery is still considered a valid option of treatment of this pathology. Materials and Methods From a retrospective analysis of our database, we...

To analyse the pattern of recurrence of patients treated with Stupp protocol in relation to technique, to compare in silico plans with reduced margin (1 cm) with the original ones and to analyse toxicity. 105 patients were treated: 85 had local recurrence and 68 of them were analysed. Recurrence was considered in field, marginal and distant if >80...

Background: The mesial temporal region (MTR) comprises important components of the limbic system, as well as vital neurovascular structures. Because of its important functional role, as much healthy brain tissue as possible must be preserved while targeting resection of MTR lesions. Methods: A frontal minicraniotomy is used to access the MTR thr...

Glioblastoma multiforme (GBM) is the most frequent primary central nervous system (CNS) tumor. Despite the best treatment and advances in therapy, prognosis remains poor. One of the mainstays of therapy in GBM is surgical excision. Several studies have confirmed that the extent of resection (EOR) positively influences overall survival (OS) in patie...

Glioblastoma Multiforme, the most common and aggressive primary brain tumor, remains incurable despite of the advent of modern surgical and medical treatments. This poor prognosis depends by the recurrence after surgery and intrinsic or acquired resistance to chemotherapy and radiotherapy. Nitric oxide is a small molecule that plays a key roles in...

In language assessment for glioma patients, there has been a shift from protocols based on a minimal number of representative tasks, such as object-naming, to assessments that include other linguistic processes. However, the vast majority of peri-operative assessments still concentrate on spoken language, and either neglect written language process...

The brain and gliomas: Preliminary program updated

Multidisciplinary efforts are being made to provide surgical teams with sensitive and specific tasks for language mapping in awake surgery. Researchers and clinicians have elaborated different tasks over time. A fair amount of work has been directed to study the neurofunctional correlates of some of these tasks, and there is recent interest in thei...

The extent of surgery predicts overall survival (OS) in patients treated for glioblastoma (GBM). The therapeutic approach after partial resection (PR) or biopsy alone (BA) is not clearly defined. This retrospective analysis was therefore planned to analyse clinical features, treatment and survival of patients undergoing PR or BA. We analysed the cl...