Santhi Chellamuthu MBBS, MRCP, Presenter: Nothing to Disclose

Ashok Raghavan MBBS, Abstract Co-Author: Nothing to Disclose

Alan Sprigg MD, Abstract Co-Author: Nothing to Disclose

1. Find out the success rate of the intussusception reduction using fluoroscopic guidance and compare it with the standards of British Society of Paediatric Radiology (BSPR). 2. To determine whether success rate is associated with site of intussusception, blood flow, trapped fluid, number of attempts and the experience of consultants.  

Retrospective review of all the patients who were admitted with intussusception between April 2005 and March 2010. There was a total of 72 patients. The age range was between 2 months and 15 years. All these patients had a preliminary ultrasound. Out of 72, 58 were proceeded for air enema. The site of intussusception, trapped fluid, regional blood flow, attempts at fluoroscopy, complications and  success rate by consultants were recorded.  

Out of 58 patients who underwent fluoroscopic reduction, the lead point was in the right colon for 24 patients, 20 in the transverse colon, 8 in the left colon and 6 in the rectosigmoid colon. The success rates were  83.3%, 75%, 62.5% and 50 % respectively. There was good blood flow in 40 out of 58 patients and no documentation of blood flow in 17. The success rates were 72.5% and 82.4% respectively. 1 patient had no blood flow and had an unsuccessful reduction. Trapped fluid was present in 16 patients, absent in 7 patients and not recorded in 35 patients and the success rates were 68.8%, 71.4% and 77.1% respectively. Although there was no mention of number of attempts in 48 patients, it was found from the documented 10 patients that the reduction rate decreases significantly with increasing number of attempts. There were 6 consultants involved and the success rates were 33.3%, 42.86%, 81.8%, 86.7%, 88.9% and o 100%. There was only one complication - perforation out of 58.  

1. The success rate of intussusception reduction by fluoroscopic guidance  is 74.1% which is more than the standard guidelines of British society of Paediatric Radiology (65-70%). 2. The success rate is high with proximal intussussceptions, good blood flow and the experience of the consultants. 3. Trapped fluid has no correlation with successful reduction and the higher the attempts, the less successful the reduction is.

This study is relevant for all the radiologists practising intussusception reduction as there is correlation of parameters like site, blood flow and experience with success rate.

Chellamuthu, S, Raghavan, A, Sprigg, A, What Determines the Success Rate of Intussusception Reduction by Fluoroscopic Guidance? A Study from Sheffield Children's Hospital.  Radiological Society of North America 2011 Scientific Assembly and Annual Meeting, November 26 - December 2, 2011 ,Chicago IL. http://archive.rsna.org/2011/11014670.html