Immediate shockwave-lithotripsy versus delayed shockwave-lithotripsy after urgent ureteral stenting in patients with ureteral or pyeloureteral urolithiasis: A matched-pair analysis

The most common cause of acute renal colic is a ureteral obstruction caused by ureterolithiasis. Urgent intervention is often necessary due to intractable pain. Early extracorporeal shockwave lithotripsy (SWL) as an alternative treatment option to ureteral stenting becomes forgotten in times of rising Ureterorenoscopy. Definitive guidelines are lacking which urgent treatment should be preferred in absence of signs of infection. Therefore, we assessed efficacy and safety of early SWL (eSWL) to secondary SWL (sSWL) after urgent ureteral stenting.