Project description:ObjectivesDistally located small common bile duct stones are often difficult to treat or grasp endoscopically. Therefore, multiple devices, such as baskets or balloon catheters, are frequently used in such cases. However, it is desirable to use a single device for stone extraction from the perspective of cost-effectiveness. In this multicenter study, we evaluated the efficacy of a new eight-wire basket catheter for extracting small (≤10 mm) common bile duct stones.MethodsWe retrospectively analyzed the records of 144 patients who underwent stone extraction using the eight-wire basket catheter for common bile duct stones ≤10 mm. The success rate of complete stone extraction and the risk factors for the difficulty in stone extraction with the eight-wire catheter alone were mainly evaluated.ResultsThe success rate of stone extraction with the eight-wire catheter alone was 86.1%. The final rate of complete stone extraction was 98.0%. The mean of the maximum diameter of the common bile duct and the largest stone dimension were 10.5 ± 3.5, and 5.1 ± 2.1 mm, respectively. Common bile duct diameter ≥12 mm and stone diameter ≥6 mm were identified as independent risk factors for the difficulty in stone extraction with the eight-wire catheter alone.ConclusionsThe success rate of the new eight-wire basket for small common bile duct stone extraction was acceptable. The device is beneficial and could be used from the start for the extraction of small stones < 6 mm.
Project description:BackgroundTo assess if trans-urethral snare of bladder tumor (TUSnBT) with subsequent stone basket retrieval can be used as an effective, time-saving adjunct resection technique for papillary bladder lesions.MethodsVia standard cystoscopy, TUSnBT was performed using a standard endoscopic polypectomy snare with subsequent tumor extraction utilizing a standard stone retrieval basket, when lesions were more than 10 mm in diameter. Smaller lesions were removed with the polypectomy snare. Standard trans-urethral resection of bladder tumors (TURBT) of the tumor bed was performed post TUSnBT. Histological assessment was performed and assessed separately per session.ResultsIn total, 18 papillary lesions, measuring between 9 and 26 mm, were resected via TUSnBT. Operative TUSnBT time, ranged between 10 and 60 seconds duration per lesion. No significant postoperative morbidity was experienced by patients within this cohort. Histo-pathological assessment revealed adequate muscle representation in 83.3 % of TUSnBT grouped sessions assessed.ConclusionTUSnBT with stone retrieval basket retrieval is a feasible method in selected papillary bladder lesions, and may be coupled with standard TURBT resection techniques. This method is less time consuming and would prove beneficial in select lesions. It may also be beneficial to assist with reducing the resection time or inadvertent bladder perforation encountered during the conventional TURBT.
Project description:Video 1EUS-guided pancreatic drainage using the rendezvous technique in a patient with pancreaticojejunal anastomosis stenosis and pancreatic duct stone.
Project description:To investigate the feasibility of initial endoscopic common bile duct (CBD) stone removal in patients with acute cholangitis (AC).A single-center, retrospective study was conducted between April 2013 and December 2014 and was approved by the Medical Ethics Committee at our institution. Written informed consent was obtained from each patient prior to the procedure. The cohort comprised 31 AC patients with CBD stones who underwent endoscopic biliary drainage (EBD) for naïve papilla within 48 h after AC onset. We retrospectively divided the participants into two groups: 19 patients with initial endoscopic CBD stone removal (initial group) and 12 patients with delayed endoscopic CBD stone removal (delayed group). We evaluated the feasibility of initial endoscopic CBD stone removal in patients with AC.We observed no significant differences between the groups regarding patient characteristics. According to the assessments based on the Tokyo Guidelines, the AC severity of patients with initial endoscopic CBD stone removal was mild to moderate. The use of antithrombotic agents before EBD was less frequent in the initial group than in the delayed group (11% vs 58%, respectively; P = 0.004). All the patients underwent successful endoscopic CBD stone removal and adverse events did not differ significantly between the groups. The number of endoscopic retrograde cholangiopancreatography procedures was significantly lower in the initial group than in the delayed group [median (interquartile range) 1 (1-1) vs 2 (2-2), respectively; P < 0.001]. The length of hospital stay was significantly shorter for the initial group than for the delayed group [10 (9-15) vs 17 (14-20), respectively; P = 0.010].Initial endoscopic CBD stone removal in patients with AC may be feasible when AC severity and the use of antithrombotic agents are carefully considered.
Project description:PurposeThe ideal treatment for choledocholithiasis should be simple, readily available, reliable, minimally invasive and cost-effective for patients. We performed this study to compare the benefits and drawbacks of different laparoscopic approaches (transcystic and choledochotomy) for removal of common bile duct stones.MethodsA systematic search was implemented for relevant literature using Cochrane, PubMed, Ovid Medline, EMBASE and Wanfang databases. Both the fixed-effects and random-effects models were used to calculate the odds ratio (OR) or the mean difference (MD) with 95% confidence interval (CI) for this study.ResultsThe meta-analysis included 18 trials involving 2,782 patients. There were no statistically significant differences between laparoscopic choledochotomy for common bile duct exploration (LCCBDE) (n = 1,222) and laparoscopic transcystic common bile duct exploration (LTCBDE) (n = 1,560) regarding stone clearance (OR 0.73, 95% CI 0.50-1.07; P = 0.11), conversion to other procedures (OR 0.62, 95% CI 0.21-1.79; P = 0.38), total morbidity (OR 1.65, 95% CI 0.92-2.96; P = 0.09), operative time (MD 12.34, 95% CI -0.10-24.78; P = 0.05), and blood loss (MD 1.95, 95% CI -9.56-13.46; P = 0.74). However, the LTCBDE group showed significantly better results for biliary morbidity (OR 4.25, 95% CI 2.30-7.85; P<0.001), hospital stay (MD 2.52, 95% CI 1.29-3.75; P<0.001), and hospital expenses (MD 0.30, 95% CI 0.23-0.37; P<0.001) than the LCCBDE group.ConclusionsLTCBDE is safer than LCCBDE, and is the ideal treatment for common bile duct stones.
Project description:Background/aimsThe American Society for Gastrointestinal Endoscopy (ASGE) revised its guidelines for risk stratification of patients with suspected choledocholithiasis. This study aimed to assess the diagnostic performance of the revision and to compare it to the previous guidelines.MethodsWe conducted a retrospective cohort study of 267 patients with suspected choledocholithiasis. We identified high-risk patients according to the original and revised guidelines and examined the diagnostic accuracy of both guidelines. We measured the association between individual criteria and choledocholithiasis.ResultsUnder the original guidelines, 165 (62%) patients met the criteria for high risk, of whom 79% had confirmed choledocholithiasis. The categorization had a sensitivity and specificity of 68% and 55%, respectively, for the detection of choledocholithiasis. Under the revised guidelines, 86 (32%) patients met the criteria for high risk, of whom 83% had choledocholithiasis. The revised categorization had a lower sensitivity and higher specificity of 37% and 80%, respectively. The positive predictive value of the high-risk categorization increased with the revision, reflecting a potential decrease in diagnostic endoscopic retrograde cholangiopancreatograpies (ERCPs). Stone visualized on imaging had the greatest specificity for choledocholithiasis. Gallstone pancreatitis was not associated with the risk for choledocholithiasis.ConclusionThe 2019 revision of the ASGE guidelines decreases the utilization of ERCP as a diagnostic modality and offers an improved risk stratification tool.
Project description:Feasibility of endovascular stentectomy using a snare over stent-retriever (SOS) technique was evaluated in a silicon flow model and an in vivo swine model. In vitro, stentectomy of different intracranial stents using the SOS technique was feasible in 22 out of 24 (92%) retrieval maneuvers. In vivo, stentectomy was successful in 10 out of 10 procedures (100%). In one case self-limiting vasospasm was observed angiographically as a technique related complication in the animal model. Endovascular stentectomy using the SOS technique is feasible in an experimental setting and may be transferred to a clinical scenario.
Project description:Percutaneous balloon pulmonary valvuloplasty (BPV) is the mainstay of treatment for significant pulmonary stenosis with doming leaflets. Various techniques have been described in the literature including the use of Inoue Percutaneous Transseptal Mitral Commissurotomy (PTMC) catheter with standard 0.025? guidewire. But if right ventricular anatomy is not suitable, 0.025? guidewire doesn't provide enough support to track the Inoue PTMC catheter. Here, we report a case of successful BPV using a novel technique of slenderizing the Inoue Percutaneous Transseptal Mitral Commissurotomy (PTMC) catheter over an Amplatz superstiff 0.035? guidewire. This technique may be useful during BPV in difficult right ventricular inflow and outflow tract anatomy in patients with congenital pulmonary valve stenosis.