Ineffectiveness of remote ischemic renal preconditioning in a porcine solitary-kidney model.

Abstract:

PURPOSE:Our study sought to demonstrate the effects of remote ischemic preconditioning (R-IPC) on renal function in a large animal (porcine) solitary-kidney model. METHODS:Twelve pigs were assigned to two groups: Each underwent a right nephrectomy followed by a week of recovery. Group 1 (No-IPC) underwent left renal hilar clamping for 90 minutes. Group 2 underwent right and left iliac artery clamping for 10 minutes each (R-IPC), followed by left hilar clamping for 90 minutes. Serum creatinine was drawn for both groups before ischemia (preoperative), then at 6 hours, 24 hours, 3 days, and 7 days after. Kidneys were harvested at 24 hours or 7 days for histologic analysis, and the degree of acute tubular necrosis (ATN) or lymphocyte invasion was quantified. RESULTS:Paired serum creatinine values were analyzed between time points. For Group 1, paired differences existed at 24 hours (P=0.008) but not at 3 days or 7 days. For Group 2, paired differences existed at 24 hours (P=0.006) but not at 3 days or 7 days. The mean preoperative serum creatinine level was similar between groups (P>0.05). The change in serum creatinine level was not significantly different between groups at any time point. Histologic analysis revealed rare evidence of ATN at 24 hours in Group 2, but not in Group 1. At 7 days, neither group showed ATN, and both showed 1-2+evidence of lymphocytic infiltrates. CONCLUSION:R-IPC in a solitary-kidney porcine model does not confer renal protection from warm ischemia either as evidenced by renal function measures or on histologic analysis.

journal_name

J Endourol

journal_title

Journal of endourology

authors

Bedir S,Ma Y,Antonelli J,Cadeddu JA,Gahan JC

doi

10.1089/end.2014.0563

subject

Has Abstract

pub_date

2015-05-01 00:00:00

pages

590-4

issue

5

eissn

0892-7790

issn

1557-900X

journal_volume

29

pub_type

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