[Double catheter J: ultrasound guided placement, experience initial.]

The ureteral catheter is used to provide adequate drainage of the upper urinary tract. They have been used to prevent or relieve ureteral obstruction due to multiple causes. The literature mentions the standard placement of double J catheter guided by fluoroscopy, reporting the use of ultrasound exclusively in cases of pregnant patients in order to avoid ionizing radiation. Based on the aforementioned, the primary objective was to evaluate the placement of double J catheter guided by ultrasound, as an alter native technique to the use of the fluoroscope in ureteral obstructions, as secondary objectives the intensity of the pain and the complications of the procedure.

An observational, descriptive and prospective study was carried out with 41patients who attended the lithiasis consultation.

A total of 41 patients who under went double J catheter guided by ultrasound were evaluated, achieving it successfully in 35 of the cases, resulting in bad position in 2 patients and being impossible to insert it in 4. Averageage was 41 years, size of the lithium 10.41mm. The complications presented were 17% with the use of the scale of Clavien modified these complications were represented as follows: 4.9% grade I back pain, 7.2% grade II lower urinary tract symptoms, lower tract infections, and 4.9% grade IIIa malposition.

The placement of ureteral catheters guided by ultrasound, represent a useful tool, safe, with manageable complications, taking place in times adjusted to the procedure.