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Endoscopic subureteral glutaraldehyde cross-linked collagen injection for the treatment of secondary vesicoureteral reflux: Comparison with primary vesicoureteral reflux in adults



Endoscopic subureteral glutaraldehyde cross-linked collagen injection for the treatment of secondary vesicoureteral reflux: Comparison with primary vesicoureteral reflux in adults



Journal of Urology 164(2): 336-339, Augus



Purpose: We assessed the effectiveness of endoscopic subureteral glutaraldehyde cross-linked collagen injection for treating vesicoureteral reflux in patients with vesicoureteral disorders. Materials and Methods: All 51 ureters studied had grade II or greater vesicoureteral reflux. We treated 18 patients (24 refluxing ureters) with secondary and 17 adults (27 refluxing ureters) with primary vesicoureteral reflux. The primary group served as controls to establish normal urination. A total of 14 patients with secondary vesicoureteral reflux had a low compliant autonomous bladder, including 11 with myelodysplasia and 3 after pelvic surgery and radiotherapy. One patient had an unstable bladder due to cerebral palsy and 3 had anatomical abnormalities of the urinary tract. We evaluated the estimated reflux-free rate in the secondary and adult primary vesicoureteral reflux groups. Results: Repeat injection was required in 24 ureters because of recurrent reflux. Average injected volume in the secondary and primary groups was 2.72 and 2.88 ml. per refluxing unit, respectively. The estimated reflux-free rate after the initial injection decreased gradually to about 35% in each group, while 12 and 24 months after the last injection it remained constant at 70% in the secondary group but decreased from 84.7% to 62.1% in the primary group. The percent of late recurrence was higher in the primary group. Conclusions: Long-term efficacy of the endoscopic correction of vesicoureteral reflux in the secondary group was similar to that in the primary group. Thus, endoscopic subureteral glutaraldehyde cross-linked collagen injection is useful for treating complicated secondary vesicoureteral reflux as a minimally invasive procedure. It is considered optional treatment of primary vesicoureteral reflux to avoid long-term prophylactic treatment.

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Accession: 010585320

Download citation: RISBibTeXText

PMID: 10893579

DOI: 10.1016/S0022-5347(05)67354-5



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