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Elevated urinary cytokine levels in patients undergoing ileal neobladder replacement compared with sigmoid neobladder replacement

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Abstract

Objectives

The objective of this study was to examine the urinary cytokine levels for assessment of inflammatory conditions in patients with orthotopic neobladder.

Materials and methods

Urinary levels of IL-1β, IL-6, and IL-8 were measured in 20 and 22 patients who underwent orthotopic neobladder replacement using ileum and sigmoid colon, respectively, and all cytokine levels greater than␣5 pg/ml were defined as elevated. The outcomes were compared with respect to several parameters.

Results

The proportions of patients positive for urinary culture, pyuria, and bacteriuria in the ileal neobladder group were higher than those in the sigmoid neobladder group, but these differences were not significant. Urinary levels of IL-1β, IL-6, and IL-8 in the ileal neobladder group were significantly greater than those in the sigmoid neobladder group. Furthermore, the incidences of elevated urinary levels of IL-1β, IL-6, and IL-8 in both groups were not affected by age, postoperative period, residual urine volume or pyuria; however, the incidences of elevated urinary IL-6 levels significantly differed between patients with and without bacteriuria in the ileal neobladder group, while there was a significant difference in the incidences of elevated urinary IL-8 levels between patients with and without bacteriuria in the sigmoid neobladder group.

Conclusions

These findings suggest that chronic inflammation was more frequently observed in patients with ileal neobladder than in those with sigmoid neobladder, and that IL-6 and IL-8 were involved in persistent bacteriuria in patients with ileal and sigmoid neobladder, respectively.

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Authors and Affiliations

  1. Division of Urology, Kobe University Graduate School of medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan

    Yuzo Nakano, Hideaki Miyake, Atsushi Takenaka, Isao Hara & Masato Fujisawa

  2. Department of Urology, Hyogo Medical Center for Adults, Akashi, Japan

    Taka-aki Inoue

Authors
  1. Yuzo Nakano
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  2. Hideaki Miyake
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  3. Taka-aki Inoue
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  4. Atsushi Takenaka
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  5. Isao Hara
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  6. Masato Fujisawa
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Corresponding author

Correspondence to Hideaki Miyake.

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Nakano, Y., Miyake, H., Inoue, Ta. et al. Elevated urinary cytokine levels in patients undergoing ileal neobladder replacement compared with sigmoid neobladder replacement. Int Urol Nephrol 39, 467–472 (2007). https://doi.org/10.1007/s11255-006-9071-z

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  • DOI: https://doi.org/10.1007/s11255-006-9071-z

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