The success rate of a secondary procedure to dilate the ureter with an indwelling ureteral stent is uncertain. Ureteral dilatation with a ureteral stent is more effective if the stricture is mild; if the ureteral stricture is severe or long, ureteral dilatation with a ureteral stent alone may not be effective.
1. Mild ureteral stenosis: Some patients with mild ureteral stenosis may encounter difficulties in surgical operations that need to be carried out through the ureter, and in this case, most of the patients can achieve satisfactory results with ureteral stenting tube dilatation. For example, dilatation before ureteroscopy.
2. Severe stenosis: If the stenosis is severe, simply leaving a ureteral stent tube does not have much significance, and may only play the role of drainage without the dilatation effect. If necessary, surgical resection of the stenosis and ureteral anastomosis are required.
Overall, the success rate of secondary surgery after ureteral stenting in patients with ureteral stenosis is uncertain, depending on the degree of ureteral stenosis, and it is better to be judged by the surgeon to be more secure.