EBERVAL GADELHA FIGUEIREDO
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Neurologia, Faculdade de Medicina - Docente
LIM/62 - Laboratório de Fisiopatologia Cirúrgica, Hospital das Clínicas, Faculdade de Medicina
LIM/62 - Laboratório de Fisiopatologia Cirúrgica, Hospital das Clínicas, Faculdade de Medicina
303 resultados
Resultados de Busca
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- Routine postoperative computed tomography scan after craniotomy: systematic review and evidence-based recommendations(2021) BLUMRICH, Lukas; TELLES, Joao Paulo Mota; SILVA, Saul Almeida da; IGLESIO, Ricardo Ferrareto; TEIXEIRA, Manoel Jacobsen; FIGUEIREDO, Eberval GadelhaOver the last few years, the role of early postoperative computed tomography (EPOCT) after cranial surgery has been repeatedly questioned, but there is yet no consensus on the practice. We conducted a systematic review to address the usefulness of EPOCT in association with neurological examination after elective craniotomies compared to the neurological examination alone. Studies were eligible if they provided information about the number of patients scanned, how many were asymptomatic or presented neurological deterioration before the scan and how many of each of those groups had their management changed due to imaging findings. CTs had to be performed in the first 48 h following surgery to be considered early. Eight studies were included. The retrospective studies enrolled a total of 3639 patients, with 3737 imaging examinations. Out of the 3696 CT scans performed in asymptomatic patients, less than 0.8% prompted an intervention, while 100% of patients with neurological deterioration were submitted to emergency surgery. Positive predictive values of altered scans were 0.584 for symptomatic patients and 0.125 for the asymptomatic. The number of altered scans necessary to predict (NNP) one change in management for the asymptomatic patients was 8, while for the clinically evident cases, it was 1.71. The number of scans needed to diagnose one clinically silent alteration is 134.75, and postoperative imaging of neurologically intact patients is 132 times less likely to issue an emergency intervention than an altered neurological examination alone. EPOCT following elective craniotomy in neurologically preserved patients is not supported by current evidence, and CT scanning should be performed only in particular conditions. The authors have developed an algorithm to help the judgment of each patient by the surgeon in a resource-limited context.
- Postconcussion and Suicide: How Far Should Outpatients be Assessed?(2021) WELLING, Leonardo C.; RABELO, Nicollas Nunes; BARBOSA, Mateus Goncalves de Sena; FIGUEIREDO, Eberval Gadelha
- Publication Trends of Nonobstetric Brachial Plexus Injury Research: A Bibliometric Analysis(2021) OLIVEIRA, Adilson Jose Manuel de; RAMOS, Miguel Bertelli; BOHN, Daniel; SIQUEIRA, Mario Gilberto; FIGUEIREDO, Eberval Gadelha-OBJECTIVE: To evaluate publication trends in nonobstetric brachial plexus injury research. -METHODS: In September 2020, Scopus was searched for articles on nonobstretric brachial plexus injury. Citation count, year of publication, country of correspondin
- Clinical and Surgical Experience With the Minipterional Craniotomy(2014) FIGUEIREDO, Eberval Gadelha; TEIXEIRA, Manoel Jacobsen; SPETZLER, Robert F.; PREUL, Mark C.
- Anatomic evaluation of the posterior temporal approach via the Heschl's gyrus to the thalamus, internal capsule, and atrium(2023) PALMIERO, Helbert de Oliveira Manduca; RIBAS, Eduardo Carvalhal; TEIXEIRA, Manoel Jacobsen; FIGUEIREDO, Eberval GadelhaObjective Posterior temporal craniotomy allows for the exposure of the superior surface of the planum temporale. Heschl's gyrus is the most prominent structure of the planum temporale and can be an anatomical landmark to approach deep brain structures such as the internal capsule, lateral thalamus, and ventricular atrium. Methods Ten human cadavers' heads underwent a posterior bilateral temporal craniotomy and the microsurgical dissection of Heschl's gyrus was performed and variables were measured with a neuronavigation system and statistically analyzed. Results The mean distance between the keyhole and Heschl's gyrus was 61.7 +/- 7.3 mm, the mean distance between the stephanion to Heschl's gyrus was 40.8 +/- 6.0 mm, and the mean distance between the temporal lobe and Heschl's gyrus was 54.9 +/- 6.9 mm. The length of Heschl's gyrus was 24 +/- 7.5 mm, and the inclination angle in the axial plane was 20.0 +/- 3.7 degrees having the vertex as its deepest point as the base on the surface of the temporal plane. From Heschl's gyrus, the distance from the surface to the internal capsule was 29.1 +/- 5.6 mm, the distance to the lateral thalamus was 34.8 +/- 7.3 mm, and the distance to the ventricular atrium was 39.6 +/- 7.2 mm. No statistical difference was found between the right and left sides. Conclusions Through a posterior temporal craniotomy, the temporal planum is exposed by opening the Sylvian fissure, where Heschl's gyrus can be identified and used as a natural corridor to approach the internal capsule, the ventricular atrium, and the lateral thalamus.
- A Diffuse Leptomeningeal Glioneural Tumor Case Producing Hydrocephalus and Polyradiculopathy(2020) PICARELLI, Helder; NEPOMUCENO, Thales Bhering; RIBEIRO, Renan Ribeiro; YAMAKI, Vitor Nagai; FIGUEIREDO, Eberval GadelhaThe present report describes the case of a male 17-year-old patient who progressively developed a hydrocephalus and polyradiculopathy due to involvement of central nervous system (CNS) by a diffuse leptomeningeal glioneuronal tumor ( DLGNT). The tumor had partial remission in response to the treatment with radiotherapy plus procarbazine, lomustine, and vincristine (PCV) chemotherapy, and the patient had improvement in function and pain levels. The current knowledge about DLGNT, including its clinical manifestations, imaging findings, histological characteristics, and treatment are revised and discussed in the present paper.
- Computed Tomography Angiography for Detection of Middle Meningeal Artery Lesions Associated with Acute Epidural Hematomas(2014) PAIVA, Wellingson Silva; ANDRADE, Almir Ferreira; AMORIM, Robson Luis Oliveira De; BOR-SENG-SHU, Edson; GATTAS, Gabriel; NEVILLE, Iuri Santana; CALDAS, Jose Guilherme; FIGUEIREDO, Eberval Gadelha; TEIXEIRA, Andmanoel JacobsenBackground. The natural history of traumatic aneurysms of the middle meningeal artery (MMA) is not well known, but patients with these lesions are more likely to have delayed bleeds. In this paper, we described a series of patients with epidural hematoma who underwent angiotomography (CTA) for MMA vascular lesion diagnosis. Methods. Eleven patients admitted to our emergency unit with small acute epidural hematoma were prospectively studied. All patients with temporal acute epidural hematomas underwent CTA and cerebral angiogram at our institution for diagnosis of posttraumatic lesions of middle meningeal artery. The findings of angiotomography and digital angiography were reviewed by radiologist and angiographers, respectively, to ensure that the lesions were readily diagnosed without knowing the results of angiotomography and to compare CTA findings with standard angiogram. Results. The causes of head injury were traffic accidents, falls, and aggression. Three of these patients presented traumatic MMA pseudoaneurysm. CT angiography was able to diagnose all of them, with dimensions ranging from 1.5 to 2.8 mm. Conventional angiography confirmed the findings of CT angiography, and the lesions presented with similar dimensions at both methods. Conclusions. We believe that angiotomography can be a useful technique for diagnosis of vascular lesion associated with small epidural hematoma.
- Evandro de Oliveira, ""The Brain Whisperer""(2019) FIGUEIREDO, Eberval Gadelha; ROTTA, Jose Marcus; TEIXEIRA, Manoel Jacobsen
- Brain death and management of the potential donor(2021) YOSHIKAWA, Marcia Harumy; RABELO, Nicollas Nunes; WELLING, Leonardo Christiaan; TELLES, Joao Paulo Mota; FIGUEIREDO, Eberval GadelhaOne of the first attempts to define brain death (BD) dates from 1963, and since then, the diagnosis criteria of that entity have evolved. In spite of the publication of practice parameters and evidence-based guidelines, BD is still causing concern and controversies in the society. The difficulties in determining brain death and making it understood by family members not only endorse futile therapies and increase health care costs, but also hinder the organ transplantation process. This review aims to give an overview about the definition of BD, causes, physiopathology, diagnosis criteria, and management of the potential brain-dead donor. It is important to note that the BD determination criteria detailed here follow the AAN's recommendations, but the standard practice for BD diagnosis varies from one country to another.
- Temporal muscle atrophy: Not only the approach but the way you get it(2018) WELLING, Leonardo C.; FIGUEIREDO, Eberval Gadelha