title: Prospective trial comparing solid-state catheter and water-perfusion triple-lumen catheter for sphincter of Oddi manometry done at the time of ERCP.
abstract: BACKGROUND
  Sphincter of Oddi manometry is the reference standard for the diagnosis of sphincter of Oddi dysfunction. Numerous studies have established ranges of normal values as well as typical readings in pathologic conditions. All these studies have been done using a water-perfused, triple-lumen catheter (TLC). A recently approved, new generation, solid-state catheter (SSC) has potential advantages, but concerns have been raised as to whether the pressures obtained by TLCs are reproducible by SSCs. To date, no data exist on the accuracy of sphincter of Oddi pressure measurements with the new-generation SSCs.
  
  
  OBJECTIVE
  To evaluate the accuracy of the SSC by using the TLC as the reference standard.
  
  
  METHODS
  Prospective crossover trial.
  
  
  METHODS
  A tertiary academic center.
  
  
  METHODS
  Thirty patients with clinical indications for sphincter of Oddi manometry.
  
  
  METHODS
  Sphincter of Oddi manometry with TLC and SSC in the same patient.
  
  
  METHODS
  Accuracy of sphincter of Oddi pressure measurements.
  
  
  RESULTS
  A total of 376 pressure measurements in 47 sphincter segments (24 biliary, 23 pancreatic) were obtained. Manometry results were abnormal in 10 of 24 biliary sphincters and 12 of 23 pancreatic sphincters. There was complete agreement on the final results of the sphincter of Oddi manometry (normal/abnormal) between the TLC and SSC (accuracy 100%). A split-plot analysis of the 378 individual measurements was performed. The P value of .9966 was insignificant, consistent with no catheter effect on the measurements.
  
  
  CONCLUSIONS
  Lack of blinding.
  
  
  CONCLUSIONS
  Measurement of sphincter of Oddi pressures with the SSC is accurate, and results were essentially identical to those of the water-perfused catheter system.
authors.affiliation: Division of Gastroenterology, Hepatology and Nutrition, University of Florida, Gainesville, Florida 32610, USA. dragapv@medicine.ufl.edu
authors.forename: Peter V
authors.initials: PV
authors.lastname: Draganov
authors.forename: Lukasz
authors.initials: L
authors.lastname: Kowalczyk
authors.forename: Chris E
authors.initials: CE
authors.lastname: Forsmark
mesh_terms: D000328:Adult; D002404:Catheterization / Q000295:instrumentation*; D002760:Cholangiopancreatography, Endoscopic Retrograde; D003137:Common Bile Duct Diseases / Q000175:diagnosis* / Q000503:physiopathology; D018592:Cross-Over Studies; D004867:Equipment Design; D005260:Female; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008365:Manometry / Q000379:methods*; D010477:Perfusion / Q000295:instrumentation; D011312:Pressure; D011446:Prospective Studies; D015203:Reproducibility of Results; D009803:Sphincter of Oddi / Q000503:physiopathology*; D014867:Water
chemical_list: D014867:Water