Factors and Outcomes Associated with MRCP Use prior to ERCP in Patients at High Risk for Choledocholithiasis

Table 1

Demographic, clinical, and cost characteristics of patients at high risk of choledocholithiasis.

	MRCP + ERCP; ()	ERCP only; ()	value
Age, mean (SD)	53.7 (19.2)	55.4 (19.4)	0.58
Female	60.4%	57.9%	0.76
SIRS criteria
0	11 (22.9%)	59 (33.5%)	0.28
1	18 (37.5%)	40 (22.7%)
2	11 (22.9%)	36 (20.5%)
3	6 (12.5%)	35 (19.9%)
4	2 (4.2%)	6 (3.4%)
>2 SIRS criteria	19 (39.6%)	77 (43.6%)	0.63
Persistent	7 (14.6%)	18 (10.2%)	0.23
MAP < 65	5 (10.4%)	13 (7.4%)	0.70
Need for ICU	7 (14.6%)	40 (22.7%)	0.22
Positive blood cultures	7 (14.6%)	27 (15.3%)	0.9
Mortality	2 (4.2%)	9 (5.1%)	0.91
Charlson comorbidity index, median	2 0, 5	2 0, 4	0.87
Time to MRCP (hrs), median	24 10, 42.8
Time to ERCP (hrs), median	72.5 43, 119	35 13, 50	<0.0001
LOS (days), median	8 6, 15	6 4, 10	0.02
Total hospital charges (), median	23488 15707, 35820	19260 10860, 32502	0.08
Radiology charges (), median	3385 2261–6058	1711 1018–3272	<0.0001
Primary service of admission
Medicine	32 (66.7%)	114 (64.8%)
Surgery	16 (33.3%)	62 (35.2%)	0.807

MAP: mean arterial pressure.