PMID: 3766347Jun 1, 1986Paper

Encrustation and stone formation in double J ureteral stent: report of two cases

Hinyokika kiyo. Acta urologica Japonica
Y NakameT Negishi

Abstract

We recently experienced two cases of encrustation and stone formation on double J ureteral stent which had been indwelt at pyeloplasty and at pyelolithotomy. In these patients, bacteriuria and pyuria had continued. Encrustation and stone formation were recognized by follow-up X-ray fairly soon after operation. Judging from our experience, encrustation and stone formation should be suspected in patients with persistent bacteriuria and/or pyuria and who have episodes of urolithiasis. To avoid encrustation and stone formation, the ureteral stent should be replaced more frequently.

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