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Indications and effectiveness of the open surgery in vesicoureteral reflux Suzi DEMIRBAG, MD Department of Pediatric Surgery, Gulhane Military Medical Academy, Ankara, TURKEY • Vesicoureteral reflux (VUR) refers to the retrograde flow of urine from the bladder into the ureter. • Reflux results from a congenital anomaly of the ureterovesical junction (Primary VUR), • Reflux from high-pressure voiding secondary to posterior urethral valves, neuropathic bladder or voiding dysfunction (Secondary VUR). • The prevalence of VUR in normal children has been estimated at 0.4–1.8% • Prenatally identified by ultrasonography the prevalence was 16.2 % • Siblings of children with VUR had a 27.4% risk for VUR The main goal preservation of kidney function The risk factors • age • sex • reflux grade • lower urinary tract dysfunction [LUTD] • anatomic abnormalities • kidney status There are different options in the management of VUR, from -Observation with or without antibiotics prophylaxis -Surgical intervention: -open, -endoscopic -laparoscopic approaches. Factors influencing the decision • The risk of developing a UTI, and associated risk factors for UTIs – such as voiding dysfunction • Risk of development of new renal scars, • Chance for spontaneous resolution Which patients should be selected for surgery ? The focus should be on selecting patients for treatment by identifying those at risk : • Recurrent Pyelonephritis • VUR will not spontaneously resolve. Rate of resolution of VUR • • • • • • • age at presentation gender grade of the reflux laterality mode of clinical presentation ureteral anatomy bladder/bowel dysfunction Open Surgery • Open ureteral reimplantation is still the gold standard for surgical treatment. • Success rates of 95% to 98% with low complication rates. Indications for Surgery Absolute indication for surgical correction is the • Failure of nonsurgical management Relative indications include the following: • High-grade reflux • Anatomic problems, – large para-ureteral diverticulum – ureteral duplication; • impaired renal growth Controversial indications include • Persistent reflux in girls after puberty • Avoid the need for follow-up VUR evaluation or CAP. The principles of surgical correction of reflux • • • • • Defining the causes of secondary VUR Sufficient mobilization of the distal ureter Creation of a submucosal tunnel ( 5 : 1 ratio) Attention to the entry point of the ureter Attention to the muscular backing of the ureter • Gentle surgery Open Surgical techniques for VUR • • • • Politano-Leadbetter Technique Glenn-Anderson Technique Cohen’s Technique Lich-Gregoir Technique Laparoscopic ureteral reimplantation Robot-assisted laparoscopic ureteral reimplantation Advantages • Cosmetic • Short hospitalisation Disadvantages • Longer op.time • Need more experience in laparoscopy Advantages Better view Better surgery Disadvantages: Higher op. cost Longer op.time Complications of VUR Surgery Early Complications: • Persistant reflux • Contralateral Reflux • Obstruction Late Complications: • Obstruction • Recurrent or Persistant Reflux Conclusion • Factors that negatively influence resolution: • Grade of reflux, • Lower bladder volume or pressure at onset of reflux, • Age • Sex • Laterality of VUR, • Anatomical problems, • Abnormal or scarred kidneys, • Bladder dysfunction Conclusion • The treatment of VUR → decreased rate of pyelonephritis. • Open surgery is still the gold standard for VUR treatment • There is no difference in the rate of renal scarring, renal growth, and UTIs in patients treated medically or surgically for dilating VUR. References 1-Austin JC, Cooper CS. Vesicoureteral reflux: who benefits from correction. Urol Clin North Am. 2010 May;37(2):243-52. doi: 10.1016/j.ucl.2010.03.012 2-Fonseca FF, Tanno FY, Nguyen HT. Current options in the management of primary vesicoureteral reflux in children. Pediatr Clin North Am. 2012 Aug;59(4):819-34. doi: 10.1016/j.pcl.2012.05.012. Epub 2012 Jun 22. 3-Routh JC, Bogaert GA, Kaefer M, Manzoni G, Park JM, Retik AB, Rushton HG, Snodgrass WT, Wilcox DT. Vesicoureteral reflux: current trends in diagnosis, screening, and treatment. Eur Urol. 2012 Apr;61(4):773-82. doi: 10.1016/j.eururo.2012.01.002. Epub 2012 Jan 11. 4-Tekgül S, Riedmiller H, Hoebeke P, Kočvara R, Nijman RJ, Radmayr C, Stein R, Dogan HS; European Association of Urology. EAU guidelines on vesicoureteral reflux in children. Eur Urol. 2012 Sep;62(3):534-42. doi: 10.1016/j.eururo.2012.05.059. Epub 2012 Jun 5. 5- Khoury AE, Bagli DJ, Vesicoureteral reflux, Campbell-Walsh Urology, chapter: 122, pages:3267-3309, volume 4, 10th Edition, Elsevier