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Comparison between steroid pulse therapy alone and in combination with tonsillectomy for IgA nephropathy

  • Nephrology - Original Paper
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Abstract

Purpose

To the best of our knowledge, no study has compared intermittent steroid pulse therapy, according to Pozzi’s regimen, with versus without tonsillectomy.

Methods

In this retrospective cohort analysis, we compared clinical findings, histological findings according to the Oxford classification, and complete remission rates (RR), defined in terms of urinary protein excretion (U-Prot <0.3 g/g creatinine) and urinary red blood cell count (U-RBC <5/high-power field), after 1 year of treatment in patients with IgA nephropathy (IgAN), who received tonsillectomy with steroid pulse therapy (TSP group, n = 26) or steroid pulse therapy alone (SP group, n = 15).

Results

The baseline clinical and histological characteristics did not differ between the two groups. The RR for U-Prot analyzed by the Kaplan–Meier method did not differ between the groups (76.9 vs. 53.3 %). However, the RR for U-RBC was significantly higher in the TSP than in the SP group (88.4 vs. 33.3 %, log-rank test; P = 0.0008). The RRs for U-Prot and U-RBC were significantly higher in the TSP group than in the SP group (69.2 vs. 13.3 %, log-rank test; P = 0.0019). Cox’s regression analysis showed that combination therapy was associated with higher RR (odds ratio, 12.5; 95 % confidence interval, 2.91–86.7; P = 0.0002).

Conclusions

Tonsillectomy combined with steroid pulse therapy achieved higher RR after 1 year of treatment, compared with steroid pulse monotherapy in patients with IgAN. The long-term effects on renal survival should be analyzed in further studies.

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Authors and Affiliations

  1. Department of Medicine, Kidney Center, Tokyo Women’s Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan

    Ayami Ochi, Takahito Moriyama, Takashi Takei, Keiko Uchida & Kosaku Nitta

Authors
  1. Ayami Ochi
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  2. Takahito Moriyama
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  3. Takashi Takei
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  4. Keiko Uchida
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  5. Kosaku Nitta
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Corresponding author

Correspondence to Takahito Moriyama.

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Ochi, A., Moriyama, T., Takei, T. et al. Comparison between steroid pulse therapy alone and in combination with tonsillectomy for IgA nephropathy. Int Urol Nephrol 45, 469–476 (2013). https://doi.org/10.1007/s11255-012-0251-8

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  • DOI: https://doi.org/10.1007/s11255-012-0251-8

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