Solid state biliary manometry catheter: Impact on diagnosis and post-study pancreatitis

Abstract

Perfusion manometry of the sphincter of Oddi has been the standard for the investigation of patients with presumed sphincter of Oddi dysfunction (SOD). Microtransducer manometry (MTM) of the sphincter of Oddi represents an alternative to perfusion manometry. The technical success and reproducibility of MTM are as good as for perfusion manometry. Current data suggest that the upper limit for normal of basal sphincter of Oddi pressures measured with MTM lies at approximately 35 mm Hg. Pancreatitis risk after MTM in patients with SOD compares favorably with that after perfusion manometry. Low cost and ease of handling make MTM of the sphincter of Oddi an attractive alternative.

Sphincter of Oddi manometry

“…9-13 These 4F or 5F catheters have a blunt metal tip with 3 small piezoelectric pressure transducers located radially from each other at 90 degrees. 12 The catheters have a lumen for a 0.018-in. guidewire to facilitate cannulation and allow repeated pull-throughs.…”

Sphincter of Oddi Manometry

“…The latter may crystallize in the capillary tubing of perfusion pumps and must be flushed out frequently. Solid-state catheters [43,44] and microtransducer manometry systems [45] are also available and have been used by some investigators in an attempt to avoid volume loading of the biliopancreatic system during perfusion manometry [44,46]. Preliminary data from a few centers demonstrate comparable SOM results to those achieved with perfusing catheters [43,45].…”