View clinical trials related to Gallstones.
Filter by:The purpose is to study natural process of gallstones in common bile duct, stones less than or equal to 6 mm. And if the gallstones give any complications under 1 year follow up. The second outcome is to study side-effects of gallstones removed with surgery.
Timing of laparoscopic cholecystectomy following after endoscopic retrograde cholangiography for acute biliary pancreatitis is a controversial issue. There are still many confounding findings offering either early laparoscopic cholecystectomy within 72 hours following endoscopic sphincterotomy or delayed surgery after 6 weeks. Peritoneal plasmin system is known to be an important factor in peritoneal healing and adhesion formation. Measurement of tissue concentrations of tissue-type plasminogen activator and its specific activity, urokinase-type plasminogen activator, and plasminogen activator inhibitor type 1 are thought to be helpful to show peritoneal adhesions after endoscopic sphincterotomy.
Laparoscopic surgery has become the golden standard for the removal of the gallbladder. Recently, developments have been made so that operations can be performed through a natural orifice instead of the abdominal wall, thus minimizing the trauma of a procedure. This study compares the transvaginal/transumbilical cholecystectomy with the laparoscopic operation using 2-3mm instruments in female patients. It also examines the benefits and disadvantages related to postoperative pain, cosmetic aspects, and potential physiological alterations to the transvaginal approach that affect sexual intercourse.
To assess the feasibility and success of endoscopic ultrasound (EUS) directed biliary stone removal without use of fluoroscopy. Success for this study will be defined as the successful removal of all stones from the bile duct without the use of fluoroscopy. Fluoroscopy will only be used at the end of a presumed successful procedure to confirm that all stones are removed.
The purpose of this study is to determine the effect of warmed, humidified carbon dioxide Insufflation vs standard carbon dioxide in laparoscopic cholecystectomy.
By binding to the nuclear receptor FXR, bile acids not only regulate their own turn-over but presumably also pivotal steps in cholesterol, triglyceride and glucose metabolism as shown in laboratory animals. Obeticholic acid (OCA) is a semisynthetic bile acid with very high affinity to FXR. In a pharmacodynamic study the effects of OCA on bile acid, lipid and glucose turn-over are studied in 20 morbidly obese and 20 gallstones patents, respectively, that are administered OCA at 25 mg/day in three weeks before bariatric (BS) or gallstone (GS) surgery where in addition to blood samples also biopsies are taken from the liver and in the case of BS, omental and subcutaneous adipose tissue and in case of GS, gallbladder bile.
Virtual reality devices are widely accepted tools to familiarize surgical novices with the principles of laparoscopy. Free Virtual reality training will be tested against basic training and efficacy assessed in a randomized controlled trial of surgical novices.
While gold standard in the treatment of symptomatic gall stones is laparoscopic cholecystectomy with instruments introduced through multiple abdominal wall incisions, transvaginal access to the peritoneal cavity offers an alternative avoiding injury of the abdominal wall. Transvaginal hybrid-NOTES cholecystectomy has been demonstrated effective and safe. However it has not been demonstrated up-to-date if intraoperative cholangiography is feasible during such procedure. This observational case series describes success and technical feasibility of intraoperative cholangiography during transvaginal cholecystectomy. The investigators hypothesis is that cholangiography is feasible equal to conventional laparoscopic cholecystectomy.
Bile duct stones that can't be removed by conventional means can often be removed after fragmentation by shock waves (lithotripsy). The shock waves that are used for fragmentation of these stones are generated by electric sparks (electrohydraulic lithotripsy) or laser (laser lithotripsy). Although both techniques have been used for many years, there are no studies comparing the efficacy of the two. The purpose of this study is to find out which technique is more effective.
Prospective randomized pilot clinical trial, with 3 arms and one year follow up. The study will include 60 patients, with a 1:1:1 ratio, 20 patients per group. In 40 patients a transumbilical single site incision will be performed with two different manners: single-port device SILS TM (Single Incision Laparoscopic Surgery), and flexible endoscope and accessory trocars in a single incision (FSIS-Flexible Single Incision Surgery). The third group is the control one, a conventional laparoscopic approach. The trial is designed as a pilot study to assess, as main objective, if these two endoscopic approaches have the same security and effectiveness in cholecystectomy. Hypothesis: Transumbilical approaches with single port and single incision with the flexible endoscope have the same efficacy and safety performing the endoscopic cholecystectomy. Objectives: Main objective: Assess whether both approaches are equally safe in its application to endoscopic cholecystectomy. Secondary objectives: Investigate the differences in the rate of conversion to open surgery between different surgical approaches. Investigate the differences in the rate of wound infection between the different surgical approaches. Investigate the differences in the rate of postoperative incisional hernias between different surgical approaches. Investigate whether there are differences in the rate of overall complications, all-cause mortality and the cost between different surgical approaches.