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Indian J Nephrol. 2012 Mar;22(2):108-15. doi: 10.4103/0971-4065.97126.

Retarding the progression of chronic kidney disease with renin angiotensin system blockade.

Indian journal of nephrology

M Limesh, R A Annigeri, M K Mani, P C Kowdle, B Subba Rao, S Balasubramanian, R Seshadri

Affiliations

  1. Department of Nephrology, Apollo Hospitals, Chennai, India.

PMID: 22787312 PMCID: PMC3391807 DOI: 10.4103/0971-4065.97126

Abstract

We assessed the effect of renin angiotensin system blockade (RASB) in chronic kidney disease (CKD) of diverse etiology. Two hundred and sixty-five consecutive CKD patients attending our renal clinic, with estimated glomerular filtration rate (eGFR) of 20-70 ml/min/1.73m(2) at baseline and a minimal follow-up of 1 year, were studied retrospectively. We devised a scoring system to quantify RASB, wherein the maximum dose of an agent recommended for control of hypertension was scored as 1. The renal endpoints studied were the rate of change in eGFR (ΔeGFR) and decline of eGFR>50%. The mean age was 48 ± 11.2 years and 69% were male. The mean duration of follow-up was 4 ± 2.7 years. The rate of ΔeGFR was -1.5 ± 5.0 ml/min/1.73 m(2) per year in patients who received RASB (N=168) and -6.0 ± 5.4 in those who did not (N=97) (P<0.001). The incidence of decline of eGFR >50% was 11.3% with RASB and 24.7% without (P=0.003). In a subgroup of patients who received RASB, the incidence of decline of eGFR >50% was 17.8% in the low-dose RASB group (N=84, RASB score 0.63 ± 0.38) and 4.8% in the high-dose group (N=84, RASB score 2.5 ± 0.7) (P=0.001). RASB was associated with significantly better renoprotection in CKD of diverse etiology, even in nonproteinuric diseases. This effect appeared to be dose-dependent, with higher supramaximal doses exhibiting better renoprotection than the lower conventional doses. Our results make a strong case for use of aggressive RASB in all CKD patients to postpone end-stage renal disease.

Keywords: Chronic kidney disease; progression of nephropathy; renin angiotensin system blockade

References

  1. Am J Kidney Dis. 2006 Jul;48(1):8-20 - PubMed
  2. J Am Soc Nephrol. 2001 Dec;12(12):2832-2837 - PubMed
  3. N Engl J Med. 2001 Sep 20;345(12):851-60 - PubMed
  4. Nephron Clin Pract. 2010;116(2):c137-42 - PubMed
  5. Kidney Int. 2002 Jul;62(1):350-62 - PubMed
  6. J Am Soc Nephrol. 2008 Jun;19(6):1213-24 - PubMed
  7. J Am Soc Nephrol. 2009 Apr;20(4):688-9 - PubMed
  8. J Assoc Physicians India. 2000 Nov;48(11):1078-81 - PubMed
  9. J Am Soc Nephrol. 2005 Mar;16 Suppl 1:S58-63 - PubMed
  10. Ann Intern Med. 2003 Aug 19;139(4):244-52 - PubMed
  11. Ann Intern Med. 2001 Jul 17;135(2):138-9 - PubMed
  12. J Am Soc Nephrol. 2007 Jun;18(6):1889-98 - PubMed
  13. Ann Intern Med. 1999 Mar 16;130(6):461-70 - PubMed
  14. Am J Kidney Dis. 2008 Sep;52(3):475-85 - PubMed
  15. Lancet. 2008 Aug 16;372(9638):547-53 - PubMed
  16. N Engl J Med. 2006 Jan 12;354(2):131-40 - PubMed
  17. Lancet. 1998 Oct 17;352(9136):1252-6 - PubMed
  18. Ann Intern Med. 2008 Jan 1;148(1):30-48 - PubMed
  19. Lancet. 1997 Jun 28;349(9069):1857-63 - PubMed
  20. Kidney Int. 2006 Sep;70(5):821-3 - PubMed
  21. Ann Intern Med. 1995 Nov 15;123(10):754-62 - PubMed
  22. Am J Kidney Dis. 2000 Apr;35(4):695-707 - PubMed
  23. N Engl J Med. 2001 Sep 20;345(12):861-9 - PubMed
  24. J Am Soc Nephrol. 2000 Jan;11(1):88-96 - PubMed
  25. Semin Nephrol. 2010 Jan;30(1):74-80 - PubMed
  26. Kidney Int Suppl. 2005 Apr;(94):S75-8 - PubMed
  27. Kidney Int. 2006 Dec;70(12):2131-3 - PubMed
  28. Lancet. 2003 Jan 11;361(9352):117-24 - PubMed
  29. Am J Kidney Dis. 1997 Jun;29(6):897-906 - PubMed
  30. JAMA. 2004 Feb 25;291(8):955-64 - PubMed
  31. Kidney Int. 2005 Sep;68(3):1190-8 - PubMed
  32. J Am Soc Nephrol. 2009 Apr;20(4):893-900 - PubMed

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