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Conservative management of chronic kidney disease stage 5: role of angiotensin converting enzyme inhibitors.

Abstract：

BACKGROUND:Benefits and risks of angiotensin converting enzyme inhibitors (ACE-I) in advanced chronic kidney disease (CKD) are controversial. We tested the role of ACE-I in slowing the progression of renal damage in a real-world elderly population with CKD stage 5. METHODS:We evaluated all patients consecutively referred to our CKD stage 5 outpatient clinic from January 2002 to December 2013. Chronicity was defined as two consecutive estimated glomerular filtration rate (eGFR) measurements below 15 ml/min/1.73 m2. We retrieved parameters of interest at baseline and assessed eGFR reduction rate during follow-up. We estimated GFR by the 4-variable Modification of Diet in Renal Disease (MDRD) formula. RESULTS:Mean age of the 342 subjects analyzed was 72 years and eGFR 10 ml/min/1.73 m2. In the 188 patients on ACE-I at baseline, the subsequent annual rate of eGFR reduction was less than a third of that found in the 154 patients off ACE-I. Across phosphate quartiles, baseline eGFR significantly decreased while its annual reduction rate significantly increased. Of the original cohort, 60 patients (17 %) died, 201 (59 %) started dialysis and 81 (24 %) were still in conservative treatment at the end of the study. Multivariate analysis identified age, phosphate, proteinuria, baseline eGFR and its rate of progression as independent risk factors directly or inversely predictive of progression to dialysis. ACE-I use significantly reduced by 31 % the risk of dialysis. CONCLUSIONS:Our study shows that proteinuria independently predicts further renal damage progression even in end-stage renal disease patients not yet in dialysis. In our cohort of elderly patients with very advanced CKD, ACE-I was effective in slowing down further renal damage progression.

journal_name

J Nephrol

journal_title

Journal of nephrology

authors

Dattolo PC,Gallo P,Michelassi S,Paudice N,Cannavò R,Romoli E,Fani F,Tsalouchos A,Mehmetaj A,Ferro G,Sisca S,Pizzarelli F

doi

10.1007/s40620-016-0290-9

subject

Has Abstract

pub_date

2016-12-01 00:00:00

pages

809-815

issue

eissn

1121-8428

issn

1724-6059

pii

10.1007/s40620-016-0290-9

journal_volume

pub_type

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Conservative management of chronic kidney disease stage 5: role of angiotensin converting enzyme inhibitors.