RESUMO
Objective To summarize and analyze the intraoperative and postoperative complications arising from the Anderson-Hynes transperitoneal laparoscopic pyeloplasty (LP) procedure in the treatment of patients with ureteropelvic junction obstruction (UPJO).Methods There were 154 consecutive patients who underwent transperitoneal LP between November 2011 and December 2015.These patients' data were retrospectively analyzed for intraoperative and postoperative complications.All the 154 patients were primary UPJO.Of the 154 patients,124 (80.7％) were males and 30 (19.3％) were females,114(74.0％) were found in the left side,32(21.0％)were found in the right side,while 8 (5.0％)were found in bilateral.The mean age was 3.9 years old(ranged 8-180 months).28 patients(18.2％) have the history of urological infection or flank pain.Results Mean operative time was 89 minutes (ranged 42-330 min).The mean blood loss was 7.5ml (ranged 2-50 ml),and no blood transfusions were necessary intra-and post-operatively.The mean postoperative hospital stay was 5.7 days (ranged 3-28 days).The mean follow-up duration was 28 months (ranged 6-54 months).2 laparoscopic surgeries were converted into open surgeries.One patient suffered with repeated infection after removing the double J stent two months postoperatively.The ultrasound and intravenous urography showed the more severe obstruction compared to that before surgery.The second operation was performed and resolved this problem.The overall success rate was 98％.All 28 patients,who has preoperative symptoms,reported a complete resolution of symptoms after the procedure.Intraoperative complication occurred in 11 (7.1％) patients,including injury of parapyelic vessel while in 3 (1.9％),the misplacement of the Double-J stent in 6 (3.8％),conversion to laparotomy in 2(1.3％).The postoperative complications occurred in 24(15.6％) patients,including urine leakage in 10(6.5％),infectious urinoma in 7 (4.5％),infection after removing the Double-J in 4 (2.6％),temporary intestinal obstruction,recurrent UPJO were in 1 (0.6％)respectively.Conclusions Our retrospective analysis confirmed that LP is an effective and safe procedure.The most common intraoperative complications are difficulty in double-J stent insertion.The most common postoperative complication is urine leakage.