Hydrostatic Reduction of Iatrogenic Intussusception of the Ureter Secondary to Percutaneous Nephrostomy Catheter Exchange

Abstract

JVIR 2000; 11:1076–1078 ANTEGRADE intussusception of the ureter is a rare but well-recognized condition. The vast majority of cases have been associated with intraureteral polyps, although a recent case of idiopathic intussusception has been reported. All reported cases, regardless of etiology, have been managed surgically. We present the case of a 63-yearold man with bilateral hydronephrosis who developed a retrograde intussusception of his right ureter secondary to manipulation of a nephrostomy catheter during percutaneous catheter exchange. The intussusception was recognized at the time and was reduced completely with hydrostatic pressure. The patient was followed for 7 months with routine catheter exchange, until his death from unrelated causes. There was no evidence of recurrence during this time. This case is unique in its involvement of two unusual conditions: retrograde intussusception of the ureter secondary to antegrade catheter manipulation and successful reduction of this ureteric intussusception with hydrostatic pressure.