Ogura, Takeshi1,; Okuda, Atsushi1; Ueno, Saori1; Nishioka, Nobu1; Higuchi, Kazuhide1
12nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
Address for correspondence Dr. Takeshi Ogura, 2nd Department of Internal Medicine, Osaka Medical College, 2-7 Daigakuchou, Takatsukishi, Osaka 569-8686, Japan. E-mail: [email protected]
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EUS-guided hepaticojejunostomy (EUS-HJS) is usually indicated for malignant biliary obstruction with surgical altered anatomy such as Roux-en Y anastomosis. However, because of the limited flexibility of up-angulation of the echoendoscope in the intestine, which is more confined compared with the stomach, EUS-HJS can be challenging. EUS-guided biliary drainage has recently been attempted in patients with malignant biliary obstruction and also in those with benign biliary disease. Bile duct puncture may be difficult in such cases due to constriction of the intrahepatic bile duct. Therefore, EUS-HJS for patients with benign biliary disease and Roux-en Y anastomosis is extremely challenging. Use of a 22G needle enables easy puncture of the bile duct, but guidewire insertion can be challenging because it requires manipulation of a conventional guidewire that is not smooth. A novel stiff 0.018-inch guidewire has recently become available in Japan (Fielder; Olympus, Tokyo, Japan) [Figure 1]. The guidewire has a coiled tip that prevents the guidewire sticking to the fine needle aspiration needle, which is common when using conventional 0.018-inch guidewires. Here, we described technical tips for EUS-HJS using a 22G needle with the novel 0.018-inch guidewire.
The intrahepatic bile duct was punctured using a 22G needle (EZ shot; Olympus Medical Systems, Tokyo, Japan), and contrast medium was injected [Figure 2]. The novel guidewire was then inserted into the intrahepatic bile duct. The coiled tip enabled the guidewire to be advanced into the common bile duct without sticking [Figure 3]. After tract dilation using an ultra-tapered mechanical dilator (EZ dilator; Zeon Medical, Tokyo, Japan) [Figure 4], a plastic stent was deployed from the intrahepatic bile duct to the jejunum without any adverse events [Figure 5 & Video 1].
In conclusion, a novel stiff 0.018-inch guidewire might be useful for guidewire insertion or manipulation during EUS-guided biliary drainage.
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Conflicts of interest
Takeshi Ogura is an Editorial Board Member of the journal. The article was subject to the journal’s standard procedures, with peer review handled independently of this editor and his research groups.
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3. Ogura T, Nishioka N, Yamada M, Yamada T, Ueno S, Matsuno J, et al. Novel transluminal treatment protocol for hepaticojejunostomy stricture using covered self-expandable metal stent. Surg Endosc 2021; 35:209–15.