CLINICAL RESULTS OF PERCUTANEOUS PYELOPLASTY FOR URETEROPELVIC JUNCTION OBSTRUCTION

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  • 腎盂尿管移行部狭窄症に対する経皮的腎盂切開術の経験
  • 5 YEARS FOLLOW-UP
  • 5年間の臨床成績

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Abstract

We performed percutaneous endopyeloplasty on 20 patients between February, 1988 and July, 1993. Eighteen patients had primary and two had secondary ureteropelvic junction (UPJ) obstructions. There were 15 female and 5 male patients, whose ages ranged from 14 to 77, with an average of 43.6. The length of the follow-up after pyeloplasty ranged from 4 to 69 months with an average of 28.7 months. Among the 20 patients, there were 4 high insertion type cases, a bifid renal pelvis in one case and one case combined with a renal stone Incisions were made with a hook-shaped cold knife and Ono's transplevic extraureteral approach was used in most patients. Catheters were placed at the upper and the lower of renal pelvis in the patient with a bifid renal pelvis. In the case with a renal stone, pyeloplasty was successively performed after percutaneous nephrolithotomy in a single session. An endopyelotomy stent (14 Fr) was indwelled for 6 weeks in all patients except one.<br>All patients had a low grade fever and abdominal pain for a few days after their operations, but there were no major complications. In nineteen patients (95%), the symptoms improved and their obstructive patterns disappeared or improved during follow-up. Complete ureteral stricture was found in one case at the removal of the stent and open pyeloplasty was performed.<br>Percutaneous endopyeloplasty is a safe and useful technique, but further evaluation and/or better techniques are needed for avoiding recurrence of obstruction.

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