Javier Márquez

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Cerebral air embolism occurred in a patient undergoing trigeminal rhizotomy in the sitting position. During the acute episode, a murmur was detected by the Doppler probe and foam was aspirated from the central venous catheter. The patient did not regain consciousness postoperatively, and computerized tomography demonstrated diffuse cerebral infarction.(More)
BACKGROUND This study was realized thanks to the collaboration of children and adolescents who had been resected from cerebellar tumors. The medulloblastoma group (CE+, n = 7) in addition to surgery received radiation and chemotherapy. The astrocytoma group (CE, n = 13) did not receive additional treatments. Each clinical group was compared in their(More)
AIMS Intraventricular conduction defects (IVCDs) can impair prognosis of heart failure (HF), but their specific impact is not well established. This study aimed to analyse the clinical profile and outcomes of HF patients with LBBB, right bundle branch block (RBBB), left anterior fascicular block (LAFB), and no IVCDs. METHODS AND RESULTS Clinical variables(More)
BACKGROUND This quasi-experimental study was designed to assess two important learning types - procedural and declarative--in children and adolescents affected by posterior fossa tumours (astrocytoma vs. medulloblastoma), given that memory has an important impact on the child's academic achievement and personal development. METHODS We had three groups:(More)
Hemimegalencephaly (HME) is a developmental abnormality of the central nervous system (CNS) which may present as either a syndromic or isolated case. Here, we present two cases of early prenatal diagnosis of HME. Prenatal CNS ultrasound and MRI in the first case revealed ventricular asymmetry, midline shift with displacement of the occipital lobe across the(More)
Background: Clostridium perfringens (C. perfringens) is the most frequently involved pathogen in gas-containing brain abscesses, most of them in the setting of penetrating traumatic brain injury. Postcraniotomy brain abscesses caused by C. perfringens are quite unusual, with very few cases reported previously in the literature.
PURPOSE The current standard treatment of Ewing's sarcoma is chemotherapy followed by surgery, making an immediate cranial reconstruction in a one-step surgical procedure possible. METHODS We describe the technique used to repair a cranial defect after the resection of a primary Ewing's sarcoma of the skull in a one-step surgical procedure. RESULTS Bone(More)
Background: Clostridium perfringens (C. perfringens) is the most frequently involved pathogen in gas-containing brain abscesses, most of them in the setting of penetrating traumatic brain injury. Postcraniotomy brain abscesses caused by C. perfringens are quite unusual, with very few cases reported previously in the literature.