Outcomes of Sphincter of Oddi Manometry When Performed in Low Volumes

Table 1

Clinical outcomes of patients stratified by SOD type, manometric findings, and whether sphincterotomy was performed.

SOD type	Mean basal SO pressure	N	Symptom improvement (%)	P value
SOD type II	>40 mmHg (total)	10	90
	Sphincterotomy	10	90
	No sphincterotomy	0	n/a	.10
	<40 mmHg (total)	13	38
	Sphincterotomy	7	43
	No sphincterotomy	6	33
SOD type III	>40 mm Hg (total)	7	43
	Sphincterotomy	7	43
	No sphincterotomy	0	n/a	>.50
	<40 mm Hg (total)	6	17
	Sphincterotomy	2	50
	No sphincterotomy	4	0