Background. A new agent, potassium-competitive acid blocker vonoprazan (VPZ) has potent acid-inhibitory effects and may offer advantages over conventional H. pylori eradication therapies. We aimed to compare the eradication rate between VPZ-based treatment and PPI-based one. Methods. This randomized controlled trial was designed to assign 141 patients with H. pylori-positive gastritis to VPZ group (VPZ 20 mg, amoxicillin 750 mg, and clarithromycin 200 or 400 mg twice daily for 7 days) or PPI group (rabeprazole 20 mg or lansoprazole 30 mg, amoxicillin 750 mg, and clarithromycin 200 or 400 mg twice daily for 7 days). Primary endpoints were eradication rates and adverse events. Results. Seventy of 72 patients in VPZ group and 63 of 69 patients in PPI group completed the treatment after 7 days. The eradication rate was significantly higher in VPZ group than PPI group by intention-to-treat analysis (95.8% versus 69.6%, P = 0.00003, 95% confidence interval [CI] 88.3-99.1% versus 57.3-80.1%) and per-protocol analysis (95.7% versus 71.4%, P = 0.0002, 95% CI 88.0-99.1% versus 58.7-82.1%). The incidence of adverse events was not different between the groups (26.3% in VPZ group versus 37.7% in PPI group, P = 0.15). Conclusion. VPZ-based regimen is more useful than that PPI-based regimen as a first-line H. pylori eradication therapy.
We present the case of a patient who underwent successful endoscopic nasobiliary drainage (ENBD) for bile leakage resulting from clip displacement of the cystic duct stump sustained during a laparoscopic cholecystectomy (LC). This 69-year-old man was admitted with symptomatic cholecystolithiasis. After LC was performed, intraoperative cholangiography (IOC) revealed no abnormal findings. However, postoperatively, bilious material began to appear from the intraabdominal drain. Subsequent endoscopic retrograde cholangiopancreatography (ERCP) showed bile leakage from the end of the cystic duct stump. ENBD was performed. Cholangiography using the ENBD tube 14 days later failed to show a bile leak. The ENBD was subsequently removed. The patient improved rapidly with no complaints. Bile leakage due to clip displacement from the cystic duct stump is a potential pitfall of LC, especially if IOC is normal. We recommend careful cystic duct ligation, combined with the use of superior quality ligation clips, to prevent this complication. ENBD is a useful technique to prevent bile leakage after this complication.
Background/Aims: Despite the use of conventional mouthguards, preventable sports-related dental injuries continue to occur. The authors have developed a twolayered ethylene polyvinyl acetate (EVA) mouthguard with a hard polyethylene terephthalate (PET) insert and a buffer space (H&SMG). However, adapting the PET onto the EVA layer requires skill. A light-cured Splint Resin (SRLC) and a glass fiber net (NET) reinforcement appear to resolve this issue. The aim of this study was to investigate whether SRLC with NET could replace PET and find a more practical application for NET. Materials and Methods: A pendulum impact testing machine and a dental model with strain gages were used. Six types of mouthguards were made: one with two laminated EVA blanks (LAM-MG), a three-layer type with a PET insert and an intermediate space (PET-H&SMG), a H&SMG with SRLC insert (LC-H&SMG), and three other types with differential NET-SRLC reinforcement; NET on the outer surface of SRLC, NET on the inner surface of SRLC, and NET on both the outer and inner surfaces. Five mouthguards of each type were fabricated and tested ten times with impact distances of 15 and 30 cm. Forty more impacts were applied to all H&SMGs to confirm the durability of the hard inner layer. Results: All H&SMGs showed significant strain reduction compared to the LAM-MG. PET-H&SMG and the four types of LC-H&SMG exhibited an equally slight strain (approximately 95% shock absorbing ability) in all conditions. During the test against the smaller impact, all H&SMGs showed no cracks. When tested against the stronger impact, only the LC-H&SMG with the reinforced inner surface, the double NETreinforced LC-H&SMG, and the PET-H&SMG remained intact. Conclusion: The NET-reinforced SRLC can replace PET as an intermediate mouthguard material. The NET application, at least on the internal surface, is indispensable for the LC-H&SMG reinforcement.
Bile duct injuries are a potential complication of laparoscopic cholecystectomy (LC). A patient who underwent successful endoscopic nasobiliary drainage (ENBD) for a bile duct injury sustained during LC is presented. Of particular note, the patient also had Chilaiditi's syndrome. A 59-year-old woman was admitted with symptomatic cholecystolithiasis and Chilaiditi's syndrome. LC was performed. Postoperatively, the patient complained of abdominal discomfort. Laboratory examination revealed cholestasis. Bilious material began spilling from an intraabdominal drain. Subsequent endoscopic retrograde cholangiopancreatography (ERCP) showed bile leakage. ENBD was performed. Repeat ERCP 10 days later failed to show a bile leak or stenosis of the common bile duct. The patient improved rapidly and had no complaints after the procedure. ENBD is a useful endoscopic technique to prevent peritonitis from bile leakage after LC. Chilaiditi's syndrome is not a contraindication for LC.
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