نتایج جستجو برای: csf shunt devices

تعداد نتایج: 242448  

2012
Jeonghyung Park Suzanne M. Shontz Corina S. Drapaca

Hydrocephalus is a neurological disease which causes ventricular dilation due to abnormalities in the cerebrospinal fluid (CSF) circulation. Although treatment via a CSF shunt in the brain ventricles has been performed, poor rates of patient responses continue. Thus, to aid surgeons in hydrocephalus treatment planning, we propose a geometric computational approach for tracking hydrocephalus ven...

Journal: :Magnetic resonance imaging 2007
Frank G Shellock Stephen F Wilson Christophe P Mauge

A magnetically programmable cerebrospinal fluid (CSF) shunt valve (Codman Hakim Programmable Valve, Codman, a Johnson & Johnson Company, Raynham, MA) was assessed for magnetic field interactions, heating, artifacts and functional changes at 3-Tesla. The programmable valve showed minor magnetic field interactions and heating (+0.4 degrees C). Artifacts were relatively large in relation to the si...

2013
Sara Qvarlander Niels Bohr

The volume defined by the rigid cranium is shared by the brain, blood and cerebrospinal fluid (CSF). With every heartbeat the arterial blood volume briefly increases and venous blood and CSF are forced out of the cranium, leading to pulsatility in CSF flow and intracranial pressure (ICP). Altered CSF pulsatility has been linked to idiopathic normal pressure hydrocephalus (INPH), which involves ...

2014
Michael D Jenkinson Carrol Gamble John C Hartley Helen Hickey Dyfrig Hughes Michaela Blundell Michael J Griffiths Tom Solomon Conor L Mallucci

BACKGROUND Insertion of a ventriculoperitoneal shunt (VPS) for the treatment of hydrocephalus is one of the most common neurosurgical procedures in the UK, but failures caused by infection occur in approximately 8% of primary cases. VPS infection is associated with considerable morbidity and mortality and its management results in substantial cost to the health service. Antibiotic-impregnated (...

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 1997
E Zeltzer Z Korzets A Pomeranz J Bernheim

weeks. A neurosurgical consultant refused to accept Case report our recommendation of shunt removal as he was not convinced of the diagnosis. A week after the initiation In August 1995, an 18-year-old youth was initially of antibiotic therapy, 3 and 4 levels increased to 205 referred for the evaluation of microscopic haematuria and 11 mg/dl, respectively. However, a fortnight foldiscovered on a...

2016
Giancarlo Ceccarelli Maria Cristina Ghezzi Giammarco Raponi Grazia Brunetti Carolina Marsiglia Stefania Fallani Andrea Novelli Mario Venditti

INTRODUCTION Infections are still the most common complications of cerebral shunt procedures. Even though fungal etiologies are considered to be rare, they are associated with significant morbidity and mortality. Due to their uncommonness, diagnostic procedures and optimal therapy are poorly defined. We report a case of Candida tropicalis infection of ventriculo-peritoneal cerebrospinal fluid (...

Journal: :Journal of neurology, neurosurgery, and psychiatry 2013
Sara Qvarlander Bo Lundkvist Lars-Owe D Koskinen Jan Malm Anders Eklund

BACKGROUND It is suggested that disturbed CSF dynamics are involved in the pathophysiology of idiopathic normal pressure hydrocephalus (INPH). The pulsatility curve describes the relationship between intracranial pressure (ICP) and the amplitude of cardiac related ICP pulsations. The position of baseline ICP on the curve provides information about the physiological state of the CSF dynamic syst...

Journal: :Radiologic clinics of North America 1982
T P Naidich L H Schott R L Baron

OBJECTIVE: A prospective computed tomography(CT) study to detect , determine the cause, type and severity of hydrocephalus in a study group. To evaluate shunt related complications in hydrocephalus and compare results with other studies. RESULTS : 80 consecutive patients diagnosed with hydrocephalus on CT were studied over a 2 year period . TB meningitis(32%)followed by tumors(25%) intracranial...

2017
Yuki Nagata Masahiko Bundo Saiko Sugiura Masahiro Kamita Masaya Ono Kotaro Hattori Sumiko Yoshida Yu-Ichi Goto Katsuya Urakami Shumpei Niida

Idiopathic normal pressure hydrocephalus (iNPH) is caused by the accumulation of cerebrospinal fluid (CSF) and is characterized by gait disturbance, urinary incontinence, and dementia. iNPH dementia is treatable by shunt operation; however, since the cognitive symptoms of iNPH are often similar to those of other dementias, including Alzheimer's disease (AD), accurate diagnosis of iNPH is diffic...

Journal: :BMC Pediatrics 2001
Frederike Hochhaus Petra Koehne Christoph Schäper Otfrid Butenandt Ursula Felderhoff-Mueser Elfride Ring-Mrozik Michael Obladen Christoph Bührer

BACKGROUND Elevated intracranial pressure (ICP) resulting from impaired drainage of cerebrospinal fluid (CSF) causes hydrocephalus with damage to the central nervous system. Clinical symptoms of elevated intracranial pressure (ICP) in infants may be difficult to diagnose, leading to delayed treatment by shunt placement. Until now, no biochemical marker of elevated ICP has been available for cli...

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