[Indications and morbidity associated with double J catheters.]

The use of double J catheters is usual in urologist's daily practice. The indication can be divided in prophylactic or therapeutic. Prophylactically, they prevent complications derived from endourological procedures, such as ureteral lesion or obstructive uropathy secondary to residual lithiasis or edema. Therapeutically, they treat obstructive uropathy of many different pathologies, either in an emergency setting or scheduled, such as lithiasis, stenosis, extrinsic compression of any nature or urinary tract tumors among others. Although they add clear benefits in both cases, they are not free from side effects. The most frequent symptoms they cause are: voiding urgency and increase in voiding frequency, macroscopic hematuria and suprapubic and lumbar pain. The physiopathological mechanism is explained by a mechanical and inflammatory effect or due to vesicoureteral reflux depending on the symptom. This causes patient's quality of life disturbance that may vary from mild degree to very severe. Thus, several strategies have emerged with the aim of diminishing or palliate the intensity of such symptoms: alpha-blocker drugs, design modifications or reduction of their use.