Junichi Hoshino1,2, Takayuki Fujii3, Joichi Usui4, Takeshi Fujii5, Kenichi Ohashi6, Kenmei Takaichi7, Satoshi Suzuki3, Yoshifumi Ubara8, Kunihiro Yamagata4. 1. Nephrology Center, Toranomon Hospital, Tokyo, Japan. jhoshino-ind@umin.ac.jp. 2. Nephrology Center, Toranomon Hospital Kajigaya, Kajigaya 1-3-1, Takatsu-ku, Kawasaki, Kanagawa, 213-8587, Japan. jhoshino-ind@umin.ac.jp. 3. Department of Nephrology, Seirei Sakura Citizen Hospital, Chiba, Japan. 4. Department of Nephrology, University of Tsukuba, Ibaraki, Japan. 5. Department of Pathology, Toranomon Hospital, Tokyo, Japan. 6. Department of Pathology, Yokohama City University School of Medicine, Kanagawa, Japan. 7. Nephrology Center, Toranomon Hospital, Tokyo, Japan. 8. Nephrology Center, Toranomon Hospital Kajigaya, Kajigaya 1-3-1, Takatsu-ku, Kawasaki, Kanagawa, 213-8587, Japan.
Abstract
BACKGROUND: In addition to renin-angiotensin system inhibition (RAS), corticosteroids are recommended for patients who have immunoglobulin A nephropathy (IgAN) with ≧1 g/day proteinuria. Tonsillectomy plus corticosteroid pulse therapy (TSP) had been reported as more effective in producing clinical remission of IgAN than just oral-corticosteroid (OS) or steroid-pulse (SP) therapy-but that remained unconfirmed. Accordingly, this study compared the effects of TSP, corticosteroid therapies, and RAS on a multicenter, large-scale, long-term cohort. METHODS: 1127 biopsy-proven IgAN patients with chronic kidney disease (CKD), G1-3, treated in our hospitals March 1981-December 2013 with TSP (n = 209), SP (n = 103), OS (n = 300), or RAS, alone (n = 515), were followed until end-stage renal disease (ESRD) or death, renal survival compared by treatment and proteinuria level. Hazard ratios (HRs) of ESRD were analyzed after adjusting for sex, age, BMI, eGFR, albumin, proteinuria, hematuria, blood pressure, medications, and renal-biopsy year, with propensity-score-matched analyses performed. RESULTS: With TSP as referent, the overall HRs of SP, OS, and RAS were, respectively, 1.33 (0.44-4.04), 3.56 (1.45-8.71), and 3.64 (1.48-8.96); with proteinuria ≧1.0 g/gCre, respective HRs were 2.99 (0.71-12.54), 5.04 (1.44-17.67), and 7.23 (1.98-26.40); with proteinuria <1.0 g/gCre, 0.42 (0.04-4.89), 3.24 (0.79-13.30), and 2.05 (0.52-8.05); and for patients with CKD G3, 0.37 (0.10-1.41), 2.14 (0.77-5.94), and 2.03 (0.72-5.72). Similar results were observed in models including pathological grading and/or propensity-score matching. CONCLUSION: TSP may decrease the risk of ESRD in IgAN patients better than other therapies in CKD G1-2, with proteinuria ≧1.0 g/gCre, while outcome was similar to SP in CKD G3, or with proteinuria <1.0 g/gCre.
BACKGROUND: In addition to renin-angiotensin system inhibition (RAS), corticosteroids are recommended for patients who have immunoglobulin A nephropathy (IgAN) with ≧1 g/day proteinuria. Tonsillectomy plus corticosteroid pulse therapy (TSP) had been reported as more effective in producing clinical remission of IgAN than just oral-corticosteroid (OS) or steroid-pulse (SP) therapy-but that remained unconfirmed. Accordingly, this study compared the effects of TSP, corticosteroid therapies, and RAS on a multicenter, large-scale, long-term cohort. METHODS: 1127 biopsy-proven IgANpatients with chronic kidney disease (CKD), G1-3, treated in our hospitals March 1981-December 2013 with TSP (n = 209), SP (n = 103), OS (n = 300), or RAS, alone (n = 515), were followed until end-stage renal disease (ESRD) or death, renal survival compared by treatment and proteinuria level. Hazard ratios (HRs) of ESRD were analyzed after adjusting for sex, age, BMI, eGFR, albumin, proteinuria, hematuria, blood pressure, medications, and renal-biopsy year, with propensity-score-matched analyses performed. RESULTS: With TSP as referent, the overall HRs of SP, OS, and RAS were, respectively, 1.33 (0.44-4.04), 3.56 (1.45-8.71), and 3.64 (1.48-8.96); with proteinuria ≧1.0 g/gCre, respective HRs were 2.99 (0.71-12.54), 5.04 (1.44-17.67), and 7.23 (1.98-26.40); with proteinuria <1.0 g/gCre, 0.42 (0.04-4.89), 3.24 (0.79-13.30), and 2.05 (0.52-8.05); and for patients with CKD G3, 0.37 (0.10-1.41), 2.14 (0.77-5.94), and 2.03 (0.72-5.72). Similar results were observed in models including pathological grading and/or propensity-score matching. CONCLUSION: TSP may decrease the risk of ESRD in IgANpatients better than other therapies in CKD G1-2, with proteinuria ≧1.0 g/gCre, while outcome was similar to SP in CKD G3, or with proteinuria <1.0 g/gCre.
Authors: Laurence Beck; Andrew S Bomback; Michael J Choi; Larry B Holzman; Carol Langford; Laura H Mariani; Michael J Somers; Howard Trachtman; Meryl Waldman Journal: Am J Kidney Dis Date: 2013-07-18 Impact factor: 8.860