Abstract
Introduction: The aim of the study was to examine the efficacy of JJ stenting in comparison with percutaneous nephrostomy (PCN) as a drainage method in patients with emphysematous pyelonephritis (EPN). Methods: We retrospectively identified patients with EPN between January 2000 and January 2021. Platelet-to-leukocytic ratio (PLR) at the time of hospital admission and discharge, time taken to clear air locules and to normalize leukocytic count, and air locule volume in mm3 were identified. Renal drainage by either PCN or JJ stent was required if symptoms persist for ≥3 days or in obstructed renal units. Failure of drainage method was defined as conversion to another method of drainage, need for intensive care unit admission, salvage nephrectomy, and mortality. Results: Twenty-nine patients were managed by JJ stent. Treatment success was identified in 20 patients and 19 patients who were managed by PCN and JJ stent, respectively. Higher air locule volume ≥16.7 mm3 and lower PLR ≤18.4 increased the risk of drainage failure (p = 0.009 and 0.001, respectively). Conclusion: Ureteral JJ stenting is an effective method for EPN drainage with a comparable overall success to the PCN use. Higher air locule volume and lower PLR increased the risk of drainage failure.
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2021
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