Renin-angiotensin system blockade in older adults with chronic kidney disease: a review of the literature.
OBJECTIVE
We have reviewed the literature examining the benefits and harms of renin-angiotensin system (RAS) blockade in older adults, using studies which included patients with chronic kidney disease (CKD) as well as those which included a broader patient population.


RESULTS
We review the results of key trials which evaluate the impact of RAS blockade on renal outcomes, and those which address the impact of RAS blockade on more global outcomes (cardiovascular events and mortality). Many trials examining renal outcomes of RAS blockade excluded older patients or did not present age-stratified results, whereas trials which examined global outcomes often excluded patients with CKD. Most older patients with CKD have nonproteinuric nondiabetic CKD, thus differing from participants in trials which examined renal outcomes, which often included only patients with diabetes or proteinuria. Most studies did not address alternate outcomes which may carry greatest import for older patients, such as worsening comorbid illness or changes in functional status.


CONCLUSIONS
The role of RAS inhibition for older patients with CKD remains unclear. Information on age-specific effects of RAS blockade on a range of different outcomes among older patients with CKD would improve our ability to assess the benefits and harms of RAS inhibition in this population.
Department of Medicine, Division of Nephrology and Hypertension, Oregon Health and Science University, Portland, OR 97239-3098, USA. weinstje@ohsu.edu
Jessica W
JW
Weiss
Micah L
ML
Thorp
Ann M
AM
O'Hare
D000368:Aged; D047228:Angiotensin II Type 1 Receptor Blockers / Q000009:adverse effects / Q000627:therapeutic use*; D000806:Angiotensin-Converting Enzyme Inhibitors / Q000009:adverse effects / Q000627:therapeutic use*; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D006801:Humans; D007674:Kidney Diseases / Q000188:drug therapy*; D017410:Practice Guidelines as Topic; D012084:Renin-Angiotensin System / Q000187:drug effects* / Q000502:physiology
D047228:Angiotensin II Type 1 Receptor Blockers; D000806:Angiotensin-Converting Enzyme Inhibitors