Matthieu Vinchon

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BACKGROUND AND PURPOSE Previous reports have established that the incidence of stroke may be influenced by meteorologic variations. However, no significant correlation was clearly demonstrated concerning aneurysmal bleeding. METHODS From January 1, 1989, to December 31, 1991, 238 patients with angiographically confirmed diagnoses of subarachnoid(More)
BACKGROUND AND PURPOSE Desmoplastic infantile tumors (DITs) are rare supratentorial tumors of infancy with a favorable prognosis. Radiologic and histologic features of DIT are misleading, and DIT may be misinterpreted as a malignant lesion. We have studied the usefulness of MR imaging in the diagnosis of these tumors. METHODS Between 1995 and 2002, six(More)
The diagnosis of inflicted head injury (IHI) or accidental trauma (AT) in infants is based on clinical, radiological, and/or ophthalmological findings such as subdural hematoma (SDH), encephalopathy, retinal hemorrhage (RH), and signs of impact. As a consequence, the diagnostic value of these criteria is difficult to assess because of a circularity bias. In(More)
Shunt infection (SI) is an enduring problem in pediatric neurosurgery. Its occurrence is variable in the different series that were published, according to the definition retained. In addition, long-term data, which could help to evaluate the incidence of delayed SI, as well as the developmental outcome after SI, are scarce in the literature. We reviewed(More)
OBJECT Head injury is a major cause of morbidity and death in infants, and child abuse is among its chief causes. Retinal hemorrhages (RHs) are of paramount importance for the diagnosis of child abuse; however, their sensitivity and specificity are poorly estimated. Subdural hematoma (SDH) is a common feature; however, its incidence and causative factors(More)
OBJECTIVE The primary objective of this study was to decrease the late effects of prophylactic radiation without reducing survival in standard-risk childhood medulloblastoma. PATIENTS AND METHODS Inclusion criteria were as follows: children between the ages of 3 and 18 years with total or subtotal tumor resection, no metastasis, and negative postoperative(More)
OBJECTIVE The peritoneum is the preferred site for insertion of shunts used for the treatment of hydrocephalus. Bowel perforation by peritoneal catheters (BPPC) is a rare but devastating complication. Its pathophysiology, diagnosis, and treatment are debated. METHODS Retrospective review of cases of BPPC in a series of 1956 patients having a peritoneal(More)
The outlook of pediatric hydrocephalus has spectacularly improved over the past decades; however, the adult outcome is still poorly documented. Determining the healthcare profile of these patients is important in order to organize the management of this growing population. We decided to review our pediatric hydrocephalus database for pediatric patients(More)
Intracranial ependymomas (IE) in children are aggressive tumors, and total resection (TR) is considered to be the most powerful predictor of outcome. The data regarding recurrent IE (RIE), in particular the role of reoperation, are scarce in the literature. We studied 70 cases of IE in children operated on for IE since the advent of computed imaging. TR was(More)