Table 1.

Patient Demographics and Distention Results

Patient	Age	Sex	Ethnicity	Hunner's Ulcer	General Anesthesia Capacity (cc) 80 cm H2O	EMDA Office Capacity (cc) 60 cm H2O	Absolute Difference Between OR and EMDA Capacity (cc)	% Difference	Pain Score During Office Distention (10)
1	61	F	White	+	300	260	40	13	7
2	52	F	Hispanic	+	275	255	20	7	9
3	68	F	White	+	200	205	5	2	10
4	49	F	White	-	900	1105	205	19	8
5	55	M	White	-	400	350	50	12	7
6	50	F	White	-	725	725	0	0	9
7*	72	M	Asian	+	290	370	80	22	8
8*	22	M	African American	-	875	850	25	3	8
9	48	F	Indian	+	580	550	30	5	3
10	51	M	White	+	400	400	0	0	8
11	59	M	White	+	310	300	10	3	8
Median	52	-	-	-	-	-	25	5	8

*Office distention performed prior to operating room distention. Of 11 IC patients experiencing distention both in the OR and in the office with EMDA, the distention capacity obtained in the office at 60 cm H₂O very closely approximates that achieved with general anesthesia at 80 cm H₂O. In patients #3,4, and 7, the capacity achieved in the office was higher than that achieved in the OR. In patients #6 and 10, the capacity achieved was exactly the same.