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Int J Urol. 2013 Sep;20(9):917-22. doi: 10.1111/iju.12060. Epub 2013 Jan 24.

Safety and efficacy of ureteroscopy after obstructive pyelonephritis treatment.

Author information

1
Department of Urology, Ijinkai Takeda General Hospital, Kyoto, Japan. t.kan@kuhp.kyoto-u.ac.jp

Abstract

OBJECTIVES:

An obstructed, infected kidney combined with ureteral stones can be lethal, and requires urgent drainage and complete stone removal. However, the optimal method of stone removal, and its safety and efficacy have yet to be conclusively established. The aim of this study was to determine the safety and efficacy of carrying out ureteroscopy after kidney drainage for septic patients with obstructing stones.

METHODS:

From January 2004 to September 2011, 88 patients underwent stone removal by either ureteroscopy (n = 48) or extracorporeal shock wave lithotripsy (n = 40) after drainage of obstructive pyelonephritis. Patients' characteristics were analyzed, and treatment outcomes between the ureteroscopy and extracorporeal shock wave lithotripsy groups were compared. The outcomes of ureteroscopy carried out during the same period between patients with preoperative obstructive pyelonephritis and those without were also compared.

RESULTS:

Obstructed, infected kidneys were decompressed with retrograde ureteral stenting, except for two and three cases treated with nephrostomy in the ureteroscopy and extracorporeal shock wave lithotripsy groups, respectively. The severity of preoperative pyelonephritis was similar in both groups. Importantly, the success rate was 67.5% for extracorporeal shock wave lithotripsy and 98% for ureteroscopy (P < 0.001). Likewise, the retreatment and auxiliary procedure rates were significantly greater in the extracorporeal shock wave lithotripsy group than in the ureteroscopy group (90% vs 0% and 32.5% vs 2%, respectively). Furthermore, patients treated by ureteroscopy with or without preoperative pyelonephritis had similar stone-free and ureteroscopy complication rates (97% vs 93%, and 10% vs 12%).

CONCLUSIONS:

Ureteroscopy after drainage of an obstructed infected kidney can be a safe and effective option, as it seems to not be associated with an increased risk of complications.

KEYWORDS:

obstructive pyelonephritis; sepsis; ureteral stone; ureteroscopy

PMID:
23347168
DOI:
10.1111/iju.12060
[Indexed for MEDLINE]
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