AUA 2008 - Pediatrics: Trauma/Tumors/Stone Disease & Infection/Imaging (Pos #39)

ORLANDO, FL ( - Selected Abstracts Moderated Poster Session 39: May 19, 2008 3:30 PM

Abstract 1108: metabolic abnormalities were seen at a similar rate between younger and older patients. However, children under 10 years of age were more likely to pass a stone than older ones. The mean stone size was 2.75mm for the groups.

Abstract 1110: The study showed that of 46 pediatric stone formers, 31% had abnormal bone mineral density studies and 41% of probands had sAC gene base changes previously identified in adults to increase the risk of osteoporosis and stones. The question is…do we need genetic screening?

Abstract 1111: Identifiable metabolic risk factors were present in 73% of the stone forming patients in this study. 53% had hypercalciuria on a 24 hour urine and half of these patients had a bone mineral density study consistent with osteopenia/osteoporosis. They show that a bone mineralization study is indicated in children with hypercalciuria. The next question is will thiazide and citrate help these children?

Abstract 1113: An analysis of long term follow up after pediatric shock wave lithotripsy was done by the Mayo Clinic. They showed a poor clearance rate of less than 25% and a hypertension rate of 10% between the age of 15 to 30 years. They stated it was safe, but I question the 10% hypertensive rate. We need more follow up.

Abstract 1115: Ureteroscopy was deemed safe and efficacious with a success rate of greater than 97% on the first attempt. The cohort was 167 patients with an average stone burden of 1.3cm3. It appears that if ureteroscope insertion is successful the first time around, then postoperative stenting was needed. If ureteroscope insertion was not successful, then preoperative stenting was performed. It seems that 2 anesthetics are utilized whether or not the scope can be inserted the first time around. The group did not actively dilate the ureters in any of the patients.

Abstract 1118: The incidence of neuroblastoma in children from nonmetropolitan counties is on the rise. Interestingly, the numbers in at-risk groups such as caucasian infants is decreasing. The nonmetropolitan children had a higher incidence of mortality than metropolitan children. The reasons so far are unclear.

Presented at the Annual Meeting of the American Urological Association (AUA) - May 17 - 22, 2008. Orange County Convention Center - Orlando, Florida, USA. Full Conference Reports