Jf 260v

We performed PJC in all patients enrolled in this study (Figure 1). In all cases, PJC was performed by endoscopists with at least 10 years of experience in performing ERCP. PJC was performed using a lateral-viewing endoscope (JF260 V, Olympus Optical Co., Ltd., Tokyo, Japan), a cannula (M, Boston Scientific Japan K.K., Tokyo, Japan; or PR−110 Q−1, Olympus Optical Co., Ltd., Tokyo, Japan; or Glo-Tip II^® Double Lumen ERCP Catheter, Cook Medical, Winston-Salem, North Carolina, USA), and a hydrophilic guidewire (M or M, Boston Scientific Japan K.K., Tokyo, Japan; or 228 ADBZX, ASAHI INTECC Co., Ltd., Aichi, Japan). No patient underwent endoscopic pancreatic stent placement.

All procedures were performed by the same experienced endoscopist (TO), who was trained and experienced in diagnostic and therapeutic procedures under ERCP guidance. Patients received antibiotics before the procedures, which were then performed with each patient under sedation.
A duodenoscope (JF260V; Olympus Optical, Tokyo, Japan) was advanced to the ampulla of Vater, and an ERCP catheter (MTW Endoskopie, Düsseldorf, Germany) was inserted into the bile duct. Next, a 0.025-inch guidewire (VisiGlide; Olympus Medical Systems, Tokyo, Japan) was placed in the biliary tract. After cholangiography was obtained, endoscopic sphincterotomy was performed, if necessary. The SPY DS was inserted into the bile duct under guidewire guidance. Injecting normal saline, lesions of biliary tract were observed, and forceps biopsy using a SpyBite device (Boston Scientific) was performed under cholangioscopy guidance, if necessary. In our hospital, an electrohydraulic shock wave generator (Lithotron EL27, Walz Elektronik Gmbh, Berlin, Germany) was used to generate shock waves of increasing frequency, which were applied as a continuous sequence of discharges during EHL. A 2.4-Fr EHL probe was used, and EHL was performed under SPY DS guidance.

We conducted a retrospective cohort study of all ERCPs performed between July 2013 and May 2015 at a single tertiary referral hospital (Ajou University Hospital, Suwon, Republic of Korea). The ERCP data were collected prospectively. A total of 1187 ERCPs were performed during the study period. Among them, 114 patients who underwent ENBD were enrolled in this study. A standard dose of midazolam, propofol, and meperidine was intravenously injected for sedation during ERCP. A 7 Fr nasobiliary drainage tube (Cook Endoscopy Inc., Winston-Salem, NC, USA) was placed into the bile duct in all patients, with side-viewing endoscopes (JF-240, JF-260V, and TJF-260V; Olympus Optical Co., Ltd., Tokyo, Japan). We used the endoscopic hands-off technique from July 2013 to May 2014 (endoscopy group) and the conventional technique between June 2014 and May 2015 (conventional group) for the repositioning of an ENBD tube from the mouth to the nose. In the conventional group, the endoscopic hands-off technique was performed if technical success was not achieved with the conventional technique. This study was approved by the Institutional Review Board of Ajou University Hospital (AJIRB-MED-MDB-15-183), and informed consent was obtained from all patients before the procedure.

The patients were referred for PJC based on the need to evaluate them for malignancies. Cytodiagnosis of the specimen was performed by Papanicolaou's method.
Pancreatic juice was collected in an inpatient endoscopy suite as previously described [15 (link)], using a lateral-viewing endoscope (JF260V; Olympus Optical Co., Ltd, Tokyo, Japan), a cannula (M00535700; Boston Scientific Corporation, Natick, MA, USA), and a 0.035-inch hydrophilic guidewire (M00556051; Boston Scientific Corporation). Over the guidewire, the cannula was advanced into the main pancreatic duct. The guidewire was then withdrawn, and pancreatic juice was collected using a syringe with the tip of the cannula in the MPD. The aspirated material was then evaluated by a cytopathologist (YH).

The duodenoscope (JF-260 V), EUS (SSD-α5), IDUS (UM-DG20-31R), and snare (SD-210U-25) used for the resection were all from Olympus Optical Company (Tokyo, Japan). High-frequency generator (VIO 200D) was from ERBE USA (Marietta, Georgia).