Dr. Lucas Perez de Vasconcellos – Rua Desembargador Joaquim Barbosa de Almeida 368 05463-010 São Paulo SP Brasil. E-mail: lucas.vasconcellos@ terra.com.br Intraventricular tumours represent around 10% of central nervous system tumours. A variety of intraventricular tumours can be found, with the differential diagnosis depending upon the location in the ventricular system. In the lateral ventric...

We report the unusual phenomenon of abrupt intraventricular contrast medium leakage from the choroid plexus occurring during ethanol embolization of a periventricular arteriovenous malformation. There was no evidence of any associated intraventricular hemorrhage to suggest that leakage arose from a vessel perforation, as was first suspected. Intraventricular contrast medium leakage has been rep...

Moyamoya disease usually manifests as ischemic events in childhood, and as more severe hemorrhagic events, including intraventricular hemorrhage, in adults. Recently, the indication for neuroendoscopic surgery has been extended to cast-formation intraventricular hematomas. However, detailed information about the use of neuroendoscopic surgery for the treatment of intraventricular hemorrhage ass...

Shishido, Toshiaki, Masaru Sugimachi, Osamu Kawaguchi, Hiroshi Miyano, Toru Kawada, Wataru Matsuura, Yasuhiro Ikeda, and Kenji Sunagawa. Novel method to estimate ventricular contractility using intraventricular pulse wave velocity. Am. J. Physiol. 277 (Heart Circ. Physiol. 46): H2409–H2415, 1999.—We developed a novel technique for estimating ventricular contractility using intraventricular puls...

The author has reported that a variable, e(t)=p(t)/v(t), is approximately unchanged in the areflexive heart of the dog over a wide range of end-diastolic volume of the left ventricle, where p(t) is systolic left intraventricular pressure, v(t) is systolic left intraventricular volume, and t is time from the beginning of systole in each cardiac cycle. e(t) is studied further under various extent...

Pure neuroendoscopic resection of intraventricular lesions through a burr hole is limited by the instrumentation that can be used with a working channel endoscope. We describe a safety and feasibility study of a variable aspiration tissue resector, for the resection of a variety of intraventricular lesions. Our initial experience using the variable aspiration tissue resector involved 16 patient...

Nine out of 14 patients treated with intraventricular methotrexate (MTX) for meningeal carcinomatosis from breast carcinoma and surviving more than 4 months developed disseminated necrotising leukoencephalopathy (DNL). All four patients who had received both intraventricular MTX and whole brain radiotherapy developed DNL. Five of the six patients who experienced an acute febrile reaction with m...

Intraventricular meningiomas are uncommon intracranial tumors and infrequently present with hemorrhage. With only 10 reported cases in the literature, it is exceedingly rare for meningiomas of the ventricular system to present with hemorrhage. To our knowledge, this is the first report of a patient presenting with an acute intraventricular hemorrhage in relation to a ventricular meningioma susp...

Background:Intraventricular hemorrhage is the most common intracranial hemorrhage in premature infants. The objective of this study was to investigate the relationship between intraventricular hemorrhage and blood leukocyte count. Materials and Methods:This was a cross-sectional simple sampling study conducted from the beginning of 2006 to 2010 in Ali-Asghar Children’s Hospital. Inclusion c...