Corrosion of tungsten coils after peripheral vascular embolization therapy: influence on outcome and tungsten load

Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions
Maike BachthalerChristoph Manke

Abstract

The purpose of this study was to evaluate coil corrosion and the long-term outcome after peripheral vascular embolization therapy performed with tungsten coils. We studied 14 patients who received tungsten coils on an average of 26 months prior to follow-up. The protocol included plain radiography and contrast-enhanced magnetic resonance angiography to investigate corrosion of tungsten coils and recanalization of the embolized vessels. Whole blood, hair, and urine tungsten levels were assayed when available. Corrosion of tungsten coils was detected in 9 of 14 patients by plain radiography. No evidence of recanalization of the embolized vessel and no adverse clinical effects of tungsten resorption were detected. Blood levels of tungsten were elevated in 6 of 14 patients and urine levels of tungsten were elevated in all 12 patients tested. Tungsten coil corrosion and elevated tungsten levels in blood, hair, and urine were found in most patients, although no adverse clinical effects of tungsten resorption were detected. Since the overall effect of high tungsten blood levels remains unclear, its use as an implant should be avoided.

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Citations

May 9, 2013·Clinical Neuroradiology·Ding Ya-Suo, Lin Yu-Chang
Oct 23, 2010·Ecotoxicology and Environmental Safety·Nikolay Strigul
Feb 24, 2009·Ecotoxicology and Environmental Safety·Vernon G ThomasPaul T C Harrison
Feb 13, 2016·Toxicological Sciences : an Official Journal of the Society of Toxicology·Alicia M BoltKoren K Mann
Jan 5, 2018·Journal of Neural Engineering·A Shah Idil, N Donaldson
Apr 5, 2008·Toxicology and Industrial Health·L Samuel KeithUNKNOWN Agency for Toxic Substances and Disease Registry
Sep 30, 2016·Current Environmental Health Reports·Alicia M Bolt, Koren K Mann
Mar 8, 2011·Chemical Research in Toxicology·Gustavo S GuandaliniGail G Chapman

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