Unequivocal evidence in favor of the concept that a ventricular diastolic vis a fronte contributes to ventricular filling has been established only in the following conditions: a. When the ventricle contains an abnormnlly small residual volume (rat, dog, turtle) ; b. When the ventricle contains a more nearly normal, residual volume due to ejection against the resistance of a fluid column (dog, ...

BACKGROUND Ventricular drainage has played an important role in the management of traumatic brain-injured patients. The aim of the present study was describe outcomes in a series of 57 patients with diffuse brain swelling underwent to intracranial pressure (ICP) monitoring. METHOD Fifty-eight patients with diffuse posttraumatic brain swelling, were evaluated prospectively. The Glasgow Coma Sc...

Deep-seated brain lesions, especially small ones, present a neurosurgical challenge to achieve tissue diagnosis with minimal damage to intervening normal brain. Needle biopsy is often indicated but has been a relatively arduous procedure using stereotaxic frame methods. Tissue sampling is greatly simplified by the use of intraoperative real-time sonography for needle guidance. The technique is ...

CHEST, 79: 1, JANUARY, 1981 IMAGING OF SUPRACARDIAC TOTAL ANOMALOUS PULMONARY VENOUS DRAINAGE 113 patient was one of acute ventricular failure with severe right upper abdominal quadrant pain due to liver distention, ascites, and edema. We suspect that the primary event was acute detachment of the semicircular suture, producing tricuspid regurgitation, acute right ventricular distention, increas...

the right ventricle (rv) is a complex structure with abstruse function that reveals important differences when compared to the left ventricle (lv), so it cannot be described as a simple geometric form and achromatic physiology. as an inference from this fact, in the present review, we aim to describe rv structure including the embryology, anatomy, and physiology and present a functional, hemody...

Introduction: The incidence of postneurosurgical Acinetobacter baumannii ventriculitis/meningitis, primarily due to drug-resistant strains, has increased considerably in recent years. However, limited therapeutic options are available because most antibiotics poorly penetrate the blood-brain barrier, especially pediatric patients. Case Presentation: A five-year-old boy developed ventriculitis e...

Why a catheter can be correctly placed in the ventricle by inserting perpendicular to the frontal bone on the ventricular drainage? We performed a study on the accuracy of a path perpendicular to the skull surface into the anterior horn using computed tomography (CT), and a clinical study. Twenty patients were studied on CT images. Using the curved multi-planar reconstruction method, the curved...

A prospective series of 20 patients with moderate to severe intraventricular haemorrhage (IVH) was studied for the effect of intraventricular administration of recombinant tissue plasminogen activator (rt-PA) on reduction of haematoma volume and prognosis. On the day of haemorrhage ventriculostomy was performed and 2 to 5 mg of rt-PA were injected via the external ventricular drainage, followed...

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...

BACKGROUND AND PURPOSE Impaired CSF homeostasis and altered venous hemodynamics are proposed mechanisms for elevated pressure in IIH. However, the lack of ventricular expansion steered the focus away from CSF homeostasis in IIH. This study aims to measure intracranial CSF volumes and cerebral venous drainage with MR imaging to determine whether increased CSF volume from impaired CSF homeostasis...