Question:

Which of the following materials is most similar to Enteryx?
1. Gelfoam
2. Onyx
3. Lipiodol
4. Albumin aggregate particles
5. Alcohol





Answer:

The correct answer for the question "Which of the following materials is most similar to Enteryx?" is:

2. Onyx



Explanation
1.    Gelfoam is a water-insoluble, nonelastic, porous, pliable product that is usually used as a temporary embolic agent to treat vascular diseases.

2.    Enteryx has biochemical properties similar to Onyx glue.

3.    Lipiodol, also known as ethiodized oil, is a poppyseed oil that is used as a contrast agent in follow-up imaging after chemoembolization procedures. This agent is also used in lymphangiography procedures.

4.    Technetium 99mTc-labelled albumin aggregate particles (MAA) are used as an injectable radiopharmaceutical in lung perfusion scans.

5.    Absolute alcohol can be used as a liquid agent in embolization of the kidney for indications such as angiomyolipoma and renal cell carcinoma (before surgical nephrectomy).



From the manuscript:
Visceral artery embolization after endoscopic injection of Enteryx for gastroesophageal reflux disease
Radiology Case. 2014 Sep; 8(9):21-24


This article belongs to the Interventional section.




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From the manuscript

Visceral artery embolization after endoscopic injection of Enteryx for gastroesophageal reflux disease

Free full text article: Visceral artery embolization after endoscopic injection of Enteryx for gastroesophageal reflux disease

Abstract
Gastroesophageal reflux disease (GERD) can be difficult to manage medically and may require endoscopic or surgical interventions. The Enteryx procedure was designed to enhance the gastroesophageal barrier function by endoscopic injection of a copolymer into the lower esophageal sphincter. We present a rare case of a patient who was found to have migration of the copolymer into the celiac trunk and bilateral renal arteries during a work-up for persistent intermittent hematuria, which began shortly after Enteryx therapy for GERD.






References



1. Chen D, Barber C, McLoughlin P, Thavaneswaran P, Jamieson GG, Maddern GJ. Systematic review of endoscopic treatments for gastro-oesophogral reflux disease. Br J Surg 2009; (96):128-36
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2. Deviere J, Pastorelli A, Louis H. Endoscopic implantation of a biopolymer in the lower esophageal sphincter for gastroesophageal reflux: a pilot study. Gastrointest Endosc 2002;55:335-41
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3. Cohen LB, Johnson DA, Ganz RA. Enteryx implantation for GERD: expanded multicenter trial results and interim postapproval follow-up to 24 months. Gastrointest Endosc 2005;61:650-8
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4. U.S. Food and Drug Administration. FDA Preliminary Public Health Notification: Recall of Boston Scientific ENTERYX Procedure Kits and ENTERYX Injector Single Packs for Treatment of Gastroesophageal Reflux Disease (GERD) March 21, 2013 Available at: http://www.fda.gov/MedicalDevices/Safety/AlertsandNotices/PublicHealthNotifications/ucm064523.htm
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5. Onyx Liquid Embolic System. Irvine, CA: Micro Therapeutics, Inc; 2003. Available at: http://www.ev3.net/neuro/us/liquid-embolics/onyx-liquid-embolic-system.htm
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1. GERD

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