Results 151 to 160 of about 276,376 (211)
Some of the next articles are maybe not open access.
Shunt Dependency in Shunted Arachnoid Cyst: A Reason to Avoid Shunting
Pediatric Neurosurgery, 2002Cystoperitoneal (CP) shunting is minimally invasive and achieves a high rate of resolution on neuroimaging. However, in the absence of definite symptoms, shunting should be reconsidered, because some patients can experience shunt dependency after CP shunting.
Seung-Ki, Kim +4 more
openaire +2 more sources
2010 IEEE 11th Annual Wireless and Microwave Technology Conference (WAMICON), 2010
The shunt-series shunt-shunt and shunt-series series-shunt dual feedback amplifiers are demonstrated in this paper using 2-µm GaInP/GaAs HBT technology. The shunt-series shunt-shunt and shunt-series series-shunt wideband amplifiers achieve a small-signal gain of 31/33 dB with the same 3-dB bandwidth of 6 GHz.
null Jin-Siang Syu +2 more
openaire +1 more source
The shunt-series shunt-shunt and shunt-series series-shunt dual feedback amplifiers are demonstrated in this paper using 2-µm GaInP/GaAs HBT technology. The shunt-series shunt-shunt and shunt-series series-shunt wideband amplifiers achieve a small-signal gain of 31/33 dB with the same 3-dB bandwidth of 6 GHz.
null Jin-Siang Syu +2 more
openaire +1 more source
Shunts and Shunt Problems in Childhood
1988Extra cranial shunting procedures (Cone et al. 1949, Matson 1951) were used to treat hydrocephalus before the work of Nulsen and Spitz (1952) and before the introduction of the Holter valve in 1956. However in most cases they were inefficient or even dangerous; they overdrained because they could not close and rapidly blocked due to tissue reaction to ...
J F, Hirsch, E, Hoppe-Hirsch
openaire +2 more sources
Shunt malfunction in relation to shunt infection
Acta Neurochirurgica, 1996Ventriculo-peritoneal shunt malfunction may be caused by shunt infection which may not be clinically apparent as the cause of the malfunction by standard diagnostic criteria. This suggests that the real incidence of infected shunts might be higher than previously suspected.
Vanaclocha Vanaclocha, Vicente +2 more
openaire +3 more sources
Shunts and Shunt Complications
2017Hydrocephalus is a common entity in neurosurgical practice affecting both adult and pediatric populations. VP shunts are the standard of care for most patients suffering from hydrocephalus, even with the introduction of more advanced therapeutic options such as endoscopic ventriculostomy.
Yazid Maghrabi, Saleh Baeesa
openaire +1 more source
2018
Perhaps one of the most intriguing events in neurosurgical history is the invention and use of the shunt system to treat hydrocephalus, despite the shunt’s high failure rates. The shunt system, classically composed of a proximal catheter, valve, and distal catheter, was developed in the 1950s.
Prashant Hariharan, Carolyn A. Harris
openaire +1 more source
Perhaps one of the most intriguing events in neurosurgical history is the invention and use of the shunt system to treat hydrocephalus, despite the shunt’s high failure rates. The shunt system, classically composed of a proximal catheter, valve, and distal catheter, was developed in the 1950s.
Prashant Hariharan, Carolyn A. Harris
openaire +1 more source
Neurosurgical Review, 2010
Hydrocephalus can be managed successfully with cerebrospinal fluid shunting to extracranial compartments, most commonly the peritoneum. However, current shunt systems are not ideal with high revision rates on long-term follow-up. Draining the cerebrospinal fluid from the cerebral ventricles to the cerebral venous sinuses could mimic the physiological ...
Ahmed K, Toma +3 more
openaire +2 more sources
Hydrocephalus can be managed successfully with cerebrospinal fluid shunting to extracranial compartments, most commonly the peritoneum. However, current shunt systems are not ideal with high revision rates on long-term follow-up. Draining the cerebrospinal fluid from the cerebral ventricles to the cerebral venous sinuses could mimic the physiological ...
Ahmed K, Toma +3 more
openaire +2 more sources
Neurosurgery Clinics of North America, 2001
Shunt failure remains a disheartening complication of shunt surgery. The number of adjustable factors in attempting to reduce the rate is small. The clinical presentation and timing of shunt malfunction are well documented. Although the shunt design trials have been negative to date, valves have important effects that have not as yet been translated to
P, Lo, J M, Drake
openaire +2 more sources
Shunt failure remains a disheartening complication of shunt surgery. The number of adjustable factors in attempting to reduce the rate is small. The clinical presentation and timing of shunt malfunction are well documented. Although the shunt design trials have been negative to date, valves have important effects that have not as yet been translated to
P, Lo, J M, Drake
openaire +2 more sources
2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2012
This paper presents a simple method for the steady state analysis of a self excited induction generator (SEIG) operating in shunt, short shunt and long shunt configurations. The method is based on solution of nonlinear equations obtained through impedance model of steady state equivalent circuit of a single phase SEIG.
M. Faisal Khan +2 more
openaire +1 more source
This paper presents a simple method for the steady state analysis of a self excited induction generator (SEIG) operating in shunt, short shunt and long shunt configurations. The method is based on solution of nonlinear equations obtained through impedance model of steady state equivalent circuit of a single phase SEIG.
M. Faisal Khan +2 more
openaire +1 more source
Annual Review of Medicine, 1985
Ascites is the end result when the rate of conversion of plasma to peritoneal fluid exceeds the rate of reabsorption from the peritoneal cavity. Physiologic therapy demands the return of this fluid to the plasma volume from whence it arose. The peritoneovenous shunt was devised to accomplish this.
openaire +2 more sources
Ascites is the end result when the rate of conversion of plasma to peritoneal fluid exceeds the rate of reabsorption from the peritoneal cavity. Physiologic therapy demands the return of this fluid to the plasma volume from whence it arose. The peritoneovenous shunt was devised to accomplish this.
openaire +2 more sources