Complications and outcomes of JJ stenting of the ureter in urological practice: A single-centre experience

The abstract of the above article has been accepted for presentation in the 30th world Congress of Endurology and SWL (4-8, September 2012).

Figures & data

Table 1 Indications for placing a JJ ureteric stent.

Indications
Relief of benign or malignant obstruction
Adjunct to stone therapy
For obstruction For ESWL For intraluminal lithotripsy For ureteric instrumentation For stone visualisation
Perioperative placement
Alignment of drainage elements Maintenance of luminal calibre After ureteric intervention Identification of ureter(s)
Management of urinary leakage
Leak from trauma or surgery Leak due to ureteric fistula

Table 2 Factors affecting complication rate and improved outcome in 220 patients, assessed by univariate analysis.

		Complications, n (%)		Improved outcome
Variable	N	n (%)	P	n (%)	P
Side
Right	104	61 (58.7)	0.653	76 (73)	0.281
Left	116	71 (61.2)		81 (69.8)
Sex
Male	133	67 (50.4)	<0.001	103	0.009
Female	87	65 (74.7)		(77.4) 54 (62)
Pre-stenting urine culture
Unknown	25	18 (72)	0.198	17 (85)	0.016
Negative	168	97 (57.7)		128 (58.3)
Positive	27	17 (63)		12 (57)
Urine culture during stenting
Unknown	86	34 (39.5)	<0.001	65 (90.3)	0.013
Negative	108	73 (67.6)		79 (80.6)
Positive	26	25 (69.2)		13 (61.9)
Stent length (cm)
22	39	20 (51.3)	0.046	36 (92.3)	0.02
24	68	35 (51.5)		51 (75)
26	106	77 (72.6)		92 (86.8)
28	7	4		1
Stent diameter (F)
4.7	123	78 (63.4)	0.514	111 (90.2)	0.002
6.0	87	50 (57.5)		68 (78.2)
8.0	10	8		2
Site of the upper coil
Pelvis	182	117 (64.3)	0.387	157 (86.3)	0.095
Calyx	32	18 (56.3)		21 (65.6)
Ureter	6	1		3
Site of the lower coil
Same side	146	88 (60.3)	0.091	126 (80.8)	0.229
Crossing midline	74	48 (64.9)		55 (74.3)
Lower coil shape
Complete circle	205	130 (63.4)	0.053	165 (80.5)	0.841
Incomplete circle	15	6		15
Antibiotic prophylaxis
Yes	180	110 (61)	0.635	152 (84.4)	0.898
No	40	26 (65)		29 (72.5)
Number of stent changes
0	210	128 (61)	0.362	172 (81.9)	0.219
1	9	7		9
2	1	1		0
Stent duration interval (days)
⩽90	155	84 (54)	0.035	137 (88.4)	0.002
>90	65	56 (86)		33 (50.8)

Table 3 Factors affecting patient’s complications and effect on improved outcome in 220 patients assessed by multivariate analysis.

Variable	Regression coefficient	SEM	Relative risk (95% CI)	P
Complication rate
Stent length (cm)	0.413	0.172	1.511 (1.079–2.117)	0.016
Outcome
Age (years)	−0.149	0.061	0.862 (0.765–0.971)	0.014