Background Cerebrospinal fluid (CSF) drainage via ventricular puncture is an established therapy of elevated intracranial pressure (ICP). In contrast, lumbar CSF removal is believed to be contraindicated with intracranial hypertension. Methods We investigated the safety and efficacy of lumbar CSF drainage to decrease refractory elevated ICP in a small cohort of patients with traumatic brain i...

Thirty-nine patients with histologically proved primary neoplasms, focal neurologic deficits, and positive CSF cytology were evaluated by enhanced cranial CT and MR, or complete myelography and MR of the spine. Intracranial abnormalities were noted on CT in 56% of cases and included abnormal enhancement of subarachnoid space and ventricular walls, ventricular dilatation, obliteration of cortica...

Background: Arachnoid cysts are common intracranial space-occupying lesions which are often found in middle fossa and temporal regions of the skull. Many of these lesions are asymptomatic but some might appear as spaceoccupying lesions. Almost arachnoid cyst rupture, either following a trauma or spontaneously can result in intracystic hemorrhage, subdural hematoma and hygroma. The present study...

BACKGROUND AND PURPOSE Our purpose was to describe the MR imaging findings in patients with acute coccidioidal meningitis. METHODS Fourteen patients (11 men, three women; 22-78 years old; mean age, 47 years) with coccidioidal meningitis underwent neuroimaging within 2 months of diagnosis. Thirteen patients had MR imaging and one had an initial CT study with a follow-up MR examination 5 months...

Radiol Bras. 2016 Jul/Ago;49(4):267–276 269 http://dx.doi.org/10.1590/0100-3984.2015.0130 left posterior temporal lobe that was distant from the aneurysm and from any subarachnoid cisterns. The case presented here is important because it establishes a mechanism for remote bleeding. In previous reports, a variety of explanations for distant hemorrhage have been proposed, including hypertensive c...

Experimental subarachnoid hemorrhage was induced in 52 adult male Wistar rats by microsurgical transclival basilar artery puncture. Telencephalic blood flow measured in 24 rats with subarachnoid hemorrhage was compared with that in 23 sham-operated rats and 10 unoperated control rats using the [14C]butanol indicator fractionation technique. Telencephalic blood flow was significantly less in the...

Background: In 15% to 20%o of patients with a spontaneous subarachnoid hemorrhage, no aneurysm is found on the first angiogram. This review emphasizes that this group of patients is in fact heterogeneous and describes the clinical features, pattern of hemorrhage on early computed tomographic (CT) scan, prognosis, and proposed management in the several and distinct subsets of these patients. Sum...

BACKGROUND AND PURPOSE Our purpose was to test a new variant of the fluid-attenuated inversion-recovery (FLAIR) sequence that was designed to reduce CSF and blood flow artifacts by use of a non-slice-selective inversion pulse and k-space reordered by inversion time at each slice position (KRISP). METHODS With the KRISP FLAIR sequence, the slice order was cycled so that each inversion time (TI...

This study argues that economic vulnerability causes citizens to participate in clientelism, a phenomenon with various pernicious consequences. To examine how reduced affects citizens’ participation we employ two exogenous shocks vulnerability. First, designed randomized control trial reduce household vulnerability: our development intervention constructed residential water cisterns drought-pro...