Application of bidirectional barbed absorbable suture in retroperitoneoscopic pyeloureteroplasty

Objective To investigate the safety and feasibility of bidirectional barbed absorbable suture application in retroperitoneoscopic pyeloureteroplasty.Methods Between March 2011 and June 2013,35 cases of retroperitoneoscopic pyeloureteroplasty were performed in our hospital:5/0 adsorbable suture was used in 21 cases (group A),and bidirectional barbed absorbable suture was used in 14 cases (group B).In group A,there were 12 males and 9 females aged 6-18 years (mean 14.6 years).In group B,there were 8 males and 7 females aged 7-25 years (mean 16.8 years).All cases were diagnosed as having ureteropelvic junction stricture by B-ultrasound,three dimensional CT urography (CTU) or magnetic resonance urography (MRU).Methods All 35 cases of retroperitoneoscopic pyeloureteroplasty were successfully performed,without conversion to open surgery and important intraoperative complications.In group A,the operative time was (79.5 ± 21.4) min,the blood loss was (18.5 ± 21.2) ml,and suture time was (22.4 ±3.2) miu.In group B,the operative time was (61.3 ± 13.1) min,the blood loss was (120.4 ± 21.1) ml,and suture time was (11.6 ±2.7) min,without operative blood transfusion.In two groups,hospital stay was 5-7 days (mean 6 days).The follow-up duration was 1 to 28 months.No re-stenosis of ureter was found any more,and there was no sutures calculi also.Conclusion The application of bidirectional barbed absorbable suture in retroperitoneoscopic pyeloureteroplasty could shorten suture time and warm-ischemia time,with good safety and feasibility,and is worthy.of being applicated generally in clinic. Key words: Bidirectional barbed absorbables suture line;  Retroperitoneoscopy;  Pyeloureteroplasty