Role of the Teflon deposit in the recurrence of vesicoureteral reflux

• Published in: Pediatric nephrology (Berlin, West) West), 2008-05, Vol.23 (5), p.775-778
• Main Authors: Oberritter, Zsolt, Somogyi, Reka, Juhasz, Zsolt, Pinter, Andrew B.
• Format: Article
• Language: English
• Subjects: Biocompatible Materials - administration & dosage; Biocompatible Materials - adverse effects; Child; Child, Preschool; Female; Follow-Up Studies; Humans; Injections; Male; Medicine & Public Health; Nephrology; Original Article; Pediatrics; Polytetrafluoroethylene - administration & dosage; Polytetrafluoroethylene - adverse effects; Radionuclide Imaging; Recurrence; Retrospective Studies; Time Factors; Treatment Outcome; Ureter; Urography; Urology; Vesico-Ureteral Reflux - diagnostic imaging; Vesico-Ureteral Reflux - therapy
• ISSN: 0931-041X; 1432-198X
• DOI: 10.1007/s00467-007-0725-6

A relationship between the Teflon deposit, visible with ultrasound, and long-term success of subureteric Teflon injection (STING) treatment was investigated. The study included only those patients with primary vesicoureteral reflux (VUR), in whom the reflux had disappeared and the Teflon deposits were visible 6 weeks following STING treatment. Cessation of VUR was proven by voiding cysto-urethrography (VCUG) in 99 patients (143 ureters). Average follow-up time was 9 (4–12) years. Patients were divided into two groups: group I, deposits visible with ultrasound [deposit (+)], and group II, no visible deposits at the end of the follow-up period [deposit (−)]. Reflux recurrence, the occurrence of urinary tract infection (UTI), and pyelonephritis were investigated, and technetium scintigraphy scans were examined. The deposit (+) group included 43 patients (65 ureters), and the deposit (−) group contained 56 patients (78 ureters). In the deposit (+) group there were no recurrences of VUR; however, 17 recurrences were found in the deposit (−) group ( P