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- W145503755 abstract "Shunt surveillance is a critical component of follow-up for patients with cirrhosis with transjugular intrahepatic portosystemic shunts (TIPS). Transabdominal Doppler ultrasound analysis of the shunt has been used as a noninvasive means of assessing shunt function. Doppler ultrasound analysis of the shunt is less sensitive than direct transjugular portosystemic pressure gradient measurement for detecting shunt failure. A wireless, noninvasive means of measuring the portosystemic pressure gradient in the clinic may facilitate follow-up in this group of patients. The aim of this study was to determine if two implanted wireless pressure sensors could accurately transmit a portosystemic pressure gradient across a TIPS.Two wireless microelectromechanical system pressure sensors were placed in a swine model for measuring the portosystemic pressure gradient across a TIPS. Catheter-based pressure transducers were also placed and used as the gold standard. Pressures from both systems were measured concurrently.Wireless microelectromechanical system portal and systemic pressure measurements were accurate within +/-2 mm Hg (mean, 0.86 mm Hg) of the gold standard.The use of wireless sensors may facilitate the surveillance of shunt function in patients with portal hypertension who have undergone placement of TIPS." @default.
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- W145503755 date "2010-04-01" @default.
- W145503755 modified "2023-10-16" @default.
- W145503755 title "Wireless Surveillance for Transjugular Intrahepatic Portosystemic Shunts (TIPS)" @default.
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- W145503755 doi "https://doi.org/10.1016/j.acra.2010.01.011" @default.
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