• No results found

Kaplan-Meier survival estimates

6. STUDY LIMITATIONS

There were a number of limitations in the study. Firstly, due to the retrospective nature of the study, some information (including kidney size to confirm CKD) and laboratory data were not available and patients were lost to follow up. Secondly, the MDRD formula was used, which may have

overestimated the eGFR in our patients due to the generally lower muscle mass in this group of patients. The small numbers within the histological groups was another limitation and larger studies will be needed to confirm the results of this study. In addition, due to the relatively small number of patients on ACE-Is their impact on proteinuria and renal function could not be assessed.

40

7. CONCLUSION

Our findings demonstrate that HIV patients with CKD respond well to HAART. This is reflected in improvement in eGFR and improvement in the level of proteinuria. Baseline low eGFR was

associated with a poor renal outcome suggesting that initiation of HAART earlier in the course of the disease, before severe renal dysfunction has developed, improves renal outcomes and reduces the burden of HIV CKD. Patients who presented with persistent renal disease despite HAART were less likely to recover renal function, which also suggests implementing the recommendations for earlier diagnosis and treatment of renal disease in HIV patients.

41 References

1. Global report: UNAIDS report on the global AIDS epidemic 2013

2. WHO Antiretroviral therapy for HIV infection in adults and adolescents: Recommendations for a public health approach 2010 revision

3. Mocroft A, Kirk O, Gatell J, Reiss P, Gargalianos P, Zilmer K, Beniowski M, Viard J, Staszewski S, Lundgren J. Chronic renal failure among HIV-1-infected patients. AIDS 2007,21:1119–1127

4. Fabian J & Naicker S. HIV and kidney disease in sub-Saharan Africa. Nat Rev Nephrol 2009, 5(10):591-598

5. Mulenga L, Krusea G, Lakhib S, Cantrella R, Reida S, Zulud I, Stringers E, Krishmanic Z, Mwingad A, Saagc M, Stringera J, Chi B. Baseline renal insufficiency and risk of death among HIV-infected adults on antiretroviral therapy in Lusaka, Zambia. AIDS 2008, 22:1821–1827

6. Emem C, Arogundade F, Sanusi A, Adelusola K, Wokoma F, Akinsola A. Renal disease in HIV-seropositive patients in Nigeria: an assessment of prevalence, clinical features and risk factors. Nephrol Dial Transplant 2008, 23:741–746

42

7. Wyatt C, Shi Q, Novak J, Hoover D, Szczech L, Mugabo J, Binagwaho A, Cohen M, Mutimura E, Anastos K. Prevalence of Kidney Disease in HIV-Infected and Uninfected Rwandan Women. PLoS ONE 6(3): e18352. doi:10.1371/journal.pone.0018352

8. Struik G, den Exter R, Munthali C, Chipeta D, van Oosterhout J, Nouwen J, Allain T. The prevalence of renal impairment among adults with early HIV disease in Blantyre, Malawi.

International Journal of STD & AIDS 2011, 22:457–462

9. Fabian J, Naicker S, Venter W, Baker L, Naidoo S, Paget G, Wadee S. Urinary screening abnormalities in Antiretroviral-naïve HIV-infected outpatients and the implications for management-a single centre study in South Africa. Ethnicity and Disease 2009, 19:S1 80-85

10. Gerntholtz T, Goetsch S, Katz I. HIV-related nephropathy: A South African perspective.

Kidney Int 2006, 69:1885-1891

11. Han T, Naicker S, Ramdial P, Assounga A. A cross-sectional study of HIV seropositive patients with varying degrees of proteinuria in South Africa. Kidney Int 2006, 69:2243-2250

12. Fabian J & Naicker S. Renal Complications of HIV. Fundamentals of Global HIV Medicine 2009, 34:299-314

13. Szczech L, Gupta S, Habash R, Guasch A, Kalayjian R, Appel R, Fields T, Svetkey L, Flanagan K, Klotman P, Winston J. The clinical epidemiology and course of the spectrum of renal diseases associated with HIV infection. Kidney Int 2004, 66:1145-1152

43

14. Wearne N, Swanepoel C, Boulle A, Duffield M, Rayner B. The spectrum of renal histologies seen in HIV with outcomes, prognostic indicators and clinical correlations. Nephrol Dial Transplant 2012, 27:4109-4118

15. Szczech L, Grunfeld C, Scherzar R, Canchola J, Van der Horst C, Sidney S, Wohl D, Shilpak M.

Microalbuminuria In HIV infection. AIDS 2007, 21:1003-1009

16. Wyatt C, Winston J, Malvestuttoa C, Fishbein D, Barash I, Cohen A, Klotman M, Klotman P.

Chronic kidney disease in HIV infection: an urban epidemic. AIDS 2007, 21:2101–2110

17. US RENAL DATA SYSTEM: USRDS 1999 Annual Data Report, Bethesda, MD, National

Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, 1999

18. Genovese G, Friedman D, Ross M, Lecordier L, Uzureau P, Freedman B, Bowden D, Langefeld C, Olekysk T, Knob A, Bernhardy A, Hicks P, Nelson G, Vanhollebeke B, Winkler C, Kopp J, Pays E, Pollak M. Association of Trypanolytic ApoL1 Variants with Kidney Disease in African-Americans. Science 2010, 329(5993):841–845

19. Kopp J, Nelson G, Sampath K, Johnson R, Genovese G, An P, Friedman D, Briggs W, Dart R, Korbet S, Mokrzycki M, Kimmel P, Limou S, Ahuja T, Berns J, Fryc J, Simon E, Smith M, Trachtman H, Michel D, Schelling J, Vlahov D, Pollak M, Winkler C. APOL1 Genetic Variants in Focal Segmental Glomerulosclerosis and HIV-Associated Nephropathy. J Am

SocNephrol2011, 22:2129–2137

44

20. Kopp J, Smith M, Nelson G, Johnson R, Freedman B, Bowden D, Oleksyk T, McKenzie L, Kajiyama H, Ahuja T, Berns J, Briggs W, Cho M, Dart R, Kimmel P, Korbet S, Michel D,

Mokrzycki M, Schelling J, Simon E, Trachtman H, Vlahov D, Winkler C. MYH9 is a major-effect risk gene for focal segmental glomerulosclerosis. Nat Genet 2008, 40(10):1175-1184

21. Mehta R, Kellum J, Shah S, Molitoris B, Ronco C, Warnock D, Levin A. AKINetwork:

Acute Kidney Injury Network: Report of an Initiative to Improve Outcomes in Acute Kidney Injury. Critical Care 2007, 11:31. doi:10.1186/cc5713

22. K/DOQ I clinical practice guidelines for chronic kidney disease: evaluation, classification, and stratification. Am J Kidney Dis 2002, 39:1–266

23. Conaldi P, Biancone L, Bottelli A, Wade-Evans A, Racusen L, Boccellino M, Orlandi V, Serra C, Camussi G, Toniolo A. HIV-1 kills renal tubular epithelial cells in vitro by triggering an

apoptotic pathway involving caspase activation and Fas upregulation. J Clin Invest 1998, 102:2041–2049

24. Hatsukari I, Singh P, Hitosugi N, Messmer D, Valderrama E, Teichberg S, Chaung W, Gross E, Schmidtmayerova H, Singhal P. DEC-205–Mediated Internalization of HIV-1 Results in the Establishment of Silent Infection in Renal Tubular Cells. JASN 2007, 18(3):780-787

45

25. Kajiyama W, Kopp J, Marinos N, Klotman P, Dickie P. Glomerulosclerosis and viral gene expression in HIV-transgenic mice: Role of nef. Kidney Int 2000,58:1148-1159

26. Zuo Y, Matsusaka T, Zhong J, Ma J, Ma L, Hanna Z, Jolicoeur P, Fogo A, Ichikawa I. HIV-1 Genes vpr and nef Synergistically Damage Podocytes, Leading to Glomerulosclerosis. JASN 2006, 17(10):2832-2843

27. Weiner N, Goodman J, Kimmel P. The HIV-associated renal diseases: Current insight into pathogenesis and treatment. Kidney Int 2003, 63:1618-1631

28. Ross M, Fan C, Ross M, Chu T, Shi Y, Kaufman L, Zhang W, Klotman M, Klotman P. HIV-1 infection initiates an inflammatory cascade in human renal tubular epithelial cells. J Acquir Immune Defic Syndr 2006, 42:1–11

29. Kimmel, PL, Phillips, TM: Immune complex glomerulonephritis associated with HIV infection, in Renal and Urologic Aspects of HIV Infection, 1995, edited by Kimmel PL, Berns JS, Stein JH, New York, Churchill Livingstone, p 77–110

30. Izzedine H, Harris M, Perazella M. The nephrotoxic effects of HAART. Nat Rev Nephrol 2009 5:563–573

31. Vachiat A, Musenge E, Wadee S, Naicker S. Renal failure in HIV-positive patients—a South African experience. Clin Kidney J 2013, 0: 1–6

46

32. Fabian J, Naicker S, Goetsch S, Venter W. The clinical and histological response of

HIV-associated kidney disease to antiretroviral therapy in South Africans. Nephrol Dial Transplant 2013, 28:1543–1554

33. Gupta SK, Eustace JA, Winston JA, Boydstun II, Ahuja TS, Rodriguez RA, Tashima KT, Roland M, Franceschini N, Palella FJ, Lennox JL, Klotman PE, Nachman SA, Hall SD &Szczech LA.

Guidelines for the management of chronic kidney disease in HIV-infected patients:

Recommendations of the HIV Medicine Association of the Infectious Diseases Society of America. Clin Infect Dis 2005 Jun 1;40(11):1559-85

34. Meintjes G, Maartens G, Boulle A, Conradie F, Goemaere E, Hefer E, Johnson D, Mathe M, Moosa Y, Osih R, Rossouw T, van Cutsem G, Variava E, Venter F, Spencer D, on behalf of the Southern African HIV Clinicians Society. Guidelines for antiretroviral therapy in adults.

SAJHIVMED 2012, 13(3):115-133

35. Ross M, Klotman P. HIV-associated nephropathy. AIDS 2004, 18(8):1089-1099

36. D’Agati V. Pathologic Classification of Focal Segmental Glomerulosclerosis. Seminars in Nephrology 2003, 23(2):117-134

37. World Health Organization. WHO Case Definitions of HIV for Surveillance and Revised Clinical Staging and Immunological Classification of HIV-Related Disease in Adults and Children 2007

47

38. Atta M, Gallant J, HazifurRahman M, Nagajothi N, Racusen L, Scheel P, Fine D. Antiretroviral therapy in the treatment of HIV-associated nephropathy. Nephrol Dial Transplant 2006, 21:2809-2813

39. Wei A, Burns G, Williams B, Mohammed N, Visintainer P, Sivak S. Long-term renal survival in HIV-associated nephropathy with angiotensin-converting enzyme inhibition. Kidney Int 2003, 64:1462-71

40. Kimmel P, Mishkin G, Umana W. Captopril and renal survival in patients with human immunodeficiency virus nephropathy. Am J Kidney Dis. 1996, 28(2):202-8

41. Szczech LA, Edwards LJ, Sanders LL, van der Horst C, Bartlett J, Heald A, Svetkey L. Protease inhibitors are associated with a slowed progression of HIV-related renal diseases.

ClinNephrol2002, 57:336–41

42. Smith M, Austen J, Carey J, Emancipator S, Herbener T, Gripshover B, Mbanefo C, Phinney M, Rahman M, Salata R, Weigel K, Kalayjian R. Prednisone improves renal function and proteinuria in human immunodeficiency virus-associated nephropathy. Am J Med 1996, 101(1):41-8

43. Bige N, Lanternier F, Viard J, Kamgang P, Daugas E, Elie C, Jidar K, Walker-Combrouze F, Peraldi M, Isnard-Bagnis C, Servais A, Lortholary O, Noe¨ L, Bolle´e G. Presentation of HIV-associated nephropathy and outcome in HAART-treated patients. Nephrol Dial Transplant.

2011, 0:1–8

48

44. Post F, Campbell L, Hamzah L, Collins L, Jones R, Siwani R, Johnson L, Fisher M, Holt SG, Bhagani S, Frankel AH, Wilkins E, Ainsworth JG, Larbalestier N, Macallan DC, Banerjee D, Baily G, Thuraisingham RJ, Donohoe P, Hendry B, Hilton RM, Edwards SG, Hangartner R, Howie AJ, Connolly JO, Easterbrook PJ. Predictors of Renal Outcome in HIV-Associated Nephropathy. Clin Infect Dis 2008; 46:1282–1289

45. Abbott K, Trespalacios F, Agodoa L, Ahuja T. HIVAN and medication use in chronic dialysis patients in the United States: analysis of the USRDS DMMS Wave 2 study. BMC Nephrol 2003, 1;4:5

46. Cohen S, Kimmel P. Immune Complex Renal Disease and Human Immunodeficiency Virus Infection. Seminars in Nephrology 2008, 28(6): 535-544

47. Katz A et al. IgA nephritis in HIV-positive patients: a new HIV-associated nephropathy? ClinNephrol 1992, 38:61–68

48. Tsai H. Advances in the Pathogenesis, Diagnosis, and Treatment of Thrombotic Thrombocytopenic Purpura. JASN 2003, 14(4):1072-1081

49. Rao, T. Human immunodeficiency virus infection and renal failure. Infect Dis Clin North Am 2001, 15:833–850

49

50. Novitzky N, Thomson J, Abrahams L, du Toit C, McDonald A. Thrombotic

Thrombocytopenic purpura in patients with retroviral infection is highly responsive to plasma infusion therapy. Br J Haematol.2005, 128(3):373-379

51. Winston J, Deray G, Hawkins T, Szczech L, Wyatt C, Young B. Kidney disease in patients with HIV infection and AIDS. Clin Infect Dis 2008 47:1449-1457

52. WHO Global tuberculosis report 2012. [Assessed 26/08/2013].

http://www.who.int/tb/publications/global_report/en/

53. Wools-Kaloustian K, Gupta S, Muloma E, Owino-Ong’or W, Aubrey R, Shen J, Kipruto K, Zwickl B, Goldman M. Renal disease in an antiretroviral-naïve HIV-infected outpatient population in Western Kenya. Nephrol Dial Transplant 2007, 22:2208–2212

54. Jehle A, Khanna N, Sigle, J, Glatz-Krieger K, Bettegey M, Steiger J, Dickenmann M, Hirsch H.

Acute renal failure on immune reconstitution in an HIV-positive patient with military tuberculosis. Clin Infect Dis 2004 38:32-35

50

55. Peters P, Moore D, Mermin J, Brooks J, Downing R, Were W, Kigozi A, Buchacz K, Weidle P.

Antiretroviral therapy improves renal function among HIV-infected Ugandans. Kidney Int 2008, 74:925–929

56. Izzedine H, Deray G. The nephrologist in the HAART era. AIDS 2007, 21:409–421

57. Cooper R, Wiebe N, Smith N, Keiser P, Naicker S, Tonelli M. Systematic Review and Meta-analysis: Renal Safety of Tenofovir Disoproxil Fumarate in HIV-Infected Patients. Clin Infect Dis 2010, 51:496-505

58. Brennan A, Evans D, Maskew M, Naicker S, Ive P, Sanne I, Maotoe T, Fox M. Relationship between renal dysfunction, nephrotoxicity and death among HIV adults on tenofovir. AIDS 2011, 25(13):1603-1609

59. Gupta S, Parker R, Robbins G, Dube M. The effects of highly active antiretroviral therapy on albuminuria in HIV-infected persons: results from a randomized trial. Nephrol Dial

Transplant. 2005, 20:2237–42

51

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