The responses of intracranial pressure (ICP) to hyperbaric oxygen (HBO) therapy and arterial gas pressures were investigated. ICP was measured through a ventricular or spinal drainage catheter in patients with brain tumor or cerebrovascular disease. Changes in ICP, heart rate (HR), arterial blood pressure (ABP), and transcutaneous partial pressure of carbon dioxide (PtcCO2) or oxygen (PtcO2) we...

Interval constraint propagation (ICP) algorithms allow to solve problems described as constraint satisfaction problems (CSP). ICP has been successfully applied to vehicle localization in the last few years. Once the localization problem has been stated, a large class of ICP solvers can be used. This paper compares a few ICP algorithms, using the same experimental data, in order to rank their pe...

In nine patients with severe intracranial disease causing increased intracranial pressure (ICP), the effects on ICP and cerebral perfusion pressure (CPP) of the following manoeuvres were studied: (1) endotracheal intubation, (2) addition of 50% nitrous oxide to the inspired gas after hyperventilation with oxygen and thereafter (3) addition of halothane to the nitrous oxide/oxygen mixture. The m...

BACKGROUND Intrahepatic cholestasis of pregnancy (ICP) is the most prevalent pregnancy specific liver disease. However, the pathogenesis and etiology of ICP is poorly understood. AIM To assess the expression of peroxisome proliferator-activated receptorγ (PPARγ) and nuclear factor kappa B (NF-κB) in placenta and HTR-8/SVneo cell, and evaluate the serum levels of cytokines, bile acids, hepatic...

BACKGROUND The monitoring of intracranial pressure (ICP) has a crucial role in the surveillance of patients with brain injury. During long-term monitoring of ICP, we have seen spontaneous shifts in baseline pressure (ICP sensor zero point), which are of technical and not physiological origin. The aim of the present study was to explore whether or not baseline pressures of ICP sensors can be aff...

Intracranial pressure (ICP) measurement is an extremely important part of the neurosurgical armamentarium. Not only is raised ICP the commonest cause of death in neurosurgical patients, it is extremely common in patients suffering from head injury. In this latter group, 40% of patients who are admitted in an unconscious state have raised ICP, and in 50% of those who die, raised ICP is the main ...

OBJECTIVE To characterize the association between arterial blood pressure (ABP) and intracranial pressure (ICP) in idiopathic normal pressure hydrocephalus (iNPH) patients, and its impact on outcome of shunt surgery. MATERIALS AND METHODS We analyzed all 35 iNPH patients whose ABP and ICP were recorded simultaneously during 6 years (2002-2007). The static and pulsatile pressures were averaged...

Robust registration of two 3-D point sets is a common problem in computer vision. The Iterative Closest Point (ICP) algorithm is undoubtedly the most popular algorithm for solving this kind of problem. In this paper, we present the Picky ICP algorithm, which has been created by merging several extensions of the standard ICP algorithm, thus improving its robustness and computation time. Using pu...

Increased intracranial pressure (ICP) has an adverse effect on the clinical course of patients with severe head injuries. Direct intracranial measurement is the only method of knowing the precise ICP. At the Maryland Institute for Emergency Medical Services Systems, elevations in ICP are treated according to an aggressive protocol. Our experience with this protocol has led to the following conc...

Our understanding of what if any role intracranial pressure (ICP) plays in the manifestation of the optic neuropathy called glaucoma is only beginning to develop. ICP can have a profound effect on the optic nerve. Edema of the optic nerve head is of course an accepted consequence of elevations in ICP. Venous pulsations are seen in some individuals with normal or low ICP. Therefore some local al...