ENDOSCOPIC MANOMETRY OF SPHINCTER OF ODDI

Background: Endoscopic manometry is the gold standard for the diagnosi s of sphincter of Oddi dysfunction. Aim: To report the results of the first 30 endoscopic manometries of sphincter of Oddi performed in a Ga stroenterology Service. Patients and methods: Thirty manometries were performed in 28 patients aged 30 to 70 years old (14 females). The pap illa was cannulated with a perfused catheter, measuring pressure with external transducers. Results: Deep cannulationz of the papilla was ac hieved in 88%. Procedure-related complications were not observed in th ese cases. Normal values were registered in 11 cases with a basal sphi ncter pressure 15.6 +/- 10.7 mm Hg, contractions with an amplitude of 92.3 +/- 35.7 mm Hg and 6.0 +/- 2.4 /min frequency. The clinical suspi cion of hypertonic dyskinesis was confirmed in 5 cases with an elevate d basal pressure of 43.69 +/- 13.3 mm Hg, an increased frequency of co ntractions (''tachyoddia'') in one, and large spastic contractions of high pressure in other case. In 3 of 5 cases with common bile duct sto nes, a predominance of retrograde propagation of the contractions was observed with normal pressure. Variable manometric results were observ ed after endoscopic papillotomy observing a scale front the complete a bsence of motor activity to normal sphincter function. Conclusions: En doscopic manometry is a reasonably safe method, of great importance in the diagnosis of functional disorders of the sphincter of Oddi.