Quantitative Flow Measurement of Cerebrospinal Fluid Shunt
نویسندگان
چکیده
منابع مشابه
Cerebrospinal fluid shunt technology.
Since the invention of the first implantable shunt valve by Nulsen and Spitz (12) almost 50 years ago, there has been a remarkable number of ingenious modifications and new designs of shunt equipment to treat pediatric hydrocephalus. These developments were in response to the immediately evident high shunt failure rate. These designs included antisiphon devices (15), on-off devices, gravity-act...
متن کاملFactors affecting cerebrospinal fluid flow in a shunt.
Nineteen hydrocephalic patients were studied to determine factors affecting cerebrospinal fluid (CSF) flow through shunts. This study was based on our previously reported method by which fluctuations in CSF flow through a shunt of from 0.01 ml min-1 to 1.93 ml min-1 were identified, each having its own rhythmic pattern. While CSF flow in a supine position was less than 0.01 ml min-1, head eleva...
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The present study quantitatively analyzed intraspinal cerebrospinal fluid flow patterns in 19 normal adults using fast cine phase-contrast magnetic resonance imaging. Results showed increased downward flow velocity and volume compared with upward flow, and the average downward flow volume of intraspinal cerebrospinal fluid decreased from top to bottom at different intervertebral disc levels. Up...
متن کاملPharmacokinetics and cerebrospinal fluid concentration of nafcillin in pediatric patients undergoing cerebrospinal fluid shunt placement.
Postoperative infection is among the most common complications in patients with cerebrospinal fluid shunt placement. Nafcillin is often used for prophylaxis but not pharmacokinetic data are available perioperatively in pediatric patients. The objectives of this study were to characterize the pharmacokinetics and determine the cerebrospinal concentrations of nafcillin. Ten patients (mean age 8.0...
متن کاملInvestigation of Cerebrospinal Fluid Flow Characteristics Through Adult and Pediatric Shunt Tubing
Shunt malfunction in adult and pediatric populations continues to be a perplexing problem. We examined artificial cerebrospinal fluid flow differential between adult and pediatric shunt systems. Flow through adult and pediatric-sized catheters was compared with artificial CSF using shunt systems containing new catheters, explanted catheters, 2-piece catheters, 3-piece catheters and with varying...
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ژورنال
عنوان ژورنال: Neurologia medico-chirurgica
سال: 1979
ISSN: 0470-8105,1349-8029
DOI: 10.2176/nmc.19.909