How is tx of complicated acute renal colic?

- The treatment is then surgical and consists of draining urine from the upper urinary tract. - Urine drainage is in the majority of cases ensured by a ureteral catheter, which can be internal (then called probe JJ), or external - In the case of the JJ probe, the upper loop has its place in the ( pyelon)??? and the lower loop in the bladder. - The external ureteral catheter is often preferred to the JJ probe in case of purulent pyelic urines. In this case, the conversion to JJ probe is generally performed after 48 hours of apyrexia.