Results 11 to 20 of about 4,648 (210)

Slit ventricle syndrome: Historical considerations, diagnosis, pathophysiology, and treatment review

Brain Circulation, 2021
After the introduction of shunt treatment for the management of childhood hydrocephalus, a wide variety of complications related to this treatment modality have been recognized.
Dimitrios Panagopoulos, Ploutarchos Karydakis, Marios Themistocleous   +2 more
doaj   +1 more source

3D Printed Multimaterial Microfluidic Valve. [PDF]

PLoS ONE, 2016
We present a novel 3D printed multimaterial microfluidic proportional valve. The microfluidic valve is a fundamental primitive that enables the development of programmable, automated devices for controlling fluids in a precise manner.
Steven J Keating, Maria Isabella Gariboldi, William G Patrick, Sunanda Sharma, David S Kong, Neri Oxman   +5 more
doaj   +1 more source

Category-2 shunt valve marketed as MRI-Conditional malfunction following routine 3 T magnetic resonance imaging

Interdisciplinary Neurosurgery, 2021
Background: CSF diversion techniques have been in use for decades, with the first plastic-based ventricular shunt designs originating in the 1960 s. The first generation of valves, termed fixed differential pressure (DP) valves, have a fixed flow rate ...
Caroline Davidson, Mattew White, Aviva Abosch, Miki Katzir   +3 more
doaj   +1 more source

Lumboperitoneal shunt using fluoroscopy and a peel-away sheath

Interdisciplinary Neurosurgery, 2023
Background: After placement of the spinal catheter into the spinal canal during lumboperitoneal shunt (LPS) placement, the spinal catheter needs to be connected to the programmable valve.
Tatsuya Tanaka, Ryohei Sashida, Yu Hirokawa, Ren Fujiwara, Tomihiro Wakamiya, Yuhei Michiwaki, Kazuaki Shimoji, Eiichi Suehiro, Keisuke Onoda, Fumitaka Yamane, Masatou Kawashima, Akira Matsuno   +11 more
doaj   +1 more source

Reconsidering Ventriculoperitoneal Shunt Surgery and Postoperative Shunt Valve Pressure Adjustment: Our Approaches Learned From Past Challenges and Failures

Frontiers in Neurology, 2022
Treatment for idiopathic normal pressure hydrocephalus (iNPH) continues to develop. Although ventriculoperitoneal shunt surgery has a long history and is one of the most established neurosurgeries, in the 1970s, the improvement rate of iNPH triad ...
Shigeki Yamada, Shigeki Yamada, Shigeki Yamada, Masatsune Ishikawa, Masatsune Ishikawa, Madoka Nakajima, Kazuhiko Nozaki   +6 more
doaj   +1 more source

A programmable epidermal microfluidic valving system for wearable biofluid management and contextual biomarker analysis

Nature Communications, 2020
Wearable biosensors have been used successfully for biomarker analysis, however, a lack of control over sampling limits applications. Here, the authors report a programmable microfluidic valve to control flow rate, sampling times and allow for biofluid ...
Haisong Lin, Jiawei Tan, Jialun Zhu, Shuyu Lin, Yichao Zhao, Wenzhuo Yu, Hannaneh Hojaiji, Bo Wang, Siyang Yang, Xuanbing Cheng, Zhaoqing Wang, Eric Tang, Christopher Yeung, Sam Emaminejad   +13 more
doaj   +1 more source

Programmable Shunt Valves for Pediatric Hydrocephalus: 22-Year Experience from a Singapore Children’s Hospital

Brain Sciences, 2021
(1) Background: pediatric hydrocephalus is a challenging condition. Programmable shunt valves (PSV) have been increasingly used. This study is undertaken to firstly, to objectively evaluate the efficacy of PSV as a treatment modality for pediatric ...
Min Li Tey, Lee Ping Ng, David C. Y. Low, Wan Tew Seow, Sharon Y. Y. Low   +4 more
doaj   +1 more source

Punch card programmable microfluidics. [PDF]

PLoS ONE, 2015
Small volume fluid handling in single and multiphase microfluidics provides a promising strategy for efficient bio-chemical assays, low-cost point-of-care diagnostics and new approaches to scientific discoveries.
George Korir, Manu Prakash
doaj   +1 more source

Initial experience with the Codman Certas adjustable valve in the management of patients with hydrocephalus

Fluids and Barriers of the CNS, 2012
Background A new adjustable valve, the Codman CertasTM valve for treatment of hydrocephalus was introduced into clinical practice in January 2011. It has 8 different settings with an opening pressure varying from 36 to over 400 mm H2O at a flow rate of ...
Watt Sara, Agerlin Niels, Romner Bertil
doaj   +1 more source

Efficacy and safety of programmable compared with fixed anti-siphon devices for treating idiopathic normal-pressure hydrocephalus (iNPH) in adults – SYGRAVA: study protocol for a randomized trial

Trials, 2018
Background Idiopathic normal-pressure hydrocephalus (iNPH) is a distinct form of dementia, characterized by gait ataxia, cognitive impairment and urinary incontinence.
Romy Scholz, Johannes Lemcke, Ullrich Meier, Dirk Stengel   +3 more
doaj   +1 more source