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  • Title: [Laparoscopic transposition of lower polar vessels for pyelo-ureteral junction obstruction: preliminary experience].
    Author: Abbo O, Patard PM, Mouttalib S, Bouali O, Vial J, Garnier A, Galinier P.
    Journal: Prog Urol; 2015 Feb; 25(2):96-100. PubMed ID: 25554527.
    Abstract:
    AIM OF THE STUDY: Lower pole vessels are a classical cause of PUJO even in children. The "gold standard" in the management of PUJ obstructions remains a dismembered pyeloplasty as described by Anderson and Hynes. However, some authors have developed an alternative procedure to this approach with encouraging results. The aim of our study was to evaluate our preliminary results concerning laparoscopic vascular hitch for crossing vessels. MATERIAL AND METHODS: We conducted a retrospective, monocentric study of all patients managed by this technique from January 2010 to December 2012. RESULTS: Eleven patients (7 boys, 4 girls) were managed by laparoscopy at a mean age of 10.7 years (5.4-17). They were referred to our center for clinical symptoms (intermittent pain 7, high blood pressure 1, UTI 1), antenatal diagnosis or accidental discovery. Obstruction was confirmed by MAG3 nephrogram and the presence of obstructive vessels by tomodensitometry or MRI. Mean operative time was 90.2minutes (48-184). Seven patients over 11 were strictly managed by laparoscopic transposition of lower pole vessels. Four required a classical video-assisted dismembered pyeloplasty due to a potential intraluminal stenosis. The latter were suspected by a distension test with furosemid in all four cases. Mean follow-up was 12.9±3 months. Nine patients over 11 were totally non symptomatic, whereas 2 still present mild intermittent pain. In all cases, ultrasound scans show an improvement of the pelvic dilatation. CONCLUSION: Laparoscopic transposition of lower pole vessels is a suitable and feasible alternative for the management of obstructive PUJ. Our preliminary experience emphasizes the need for a precise preoperative selection of patients along with a per operative evaluation of the obstruction. Further experience seems required to improve our criteria in this indication. LEVEL OF EVIDENCE: 5.
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