Nephrology (Carlton, Vic.) · 2013
Tonsillectomy ameliorates histological damage of recurrent immunoglobulin A nephropathy after kidney transplantation.
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Hotta Kiyohiko, Fukasawa Yuichiro, Akimoto Mayuko, Tanabe Tatsu, Sasaki Hajime, Fukuzawa Nobuyuki, Seki Toshimori, Togashi Masaki, Harada Hiroshi
Аннотация
AIM: Recurrence of immunoglobulin A (IgA) nephropathy (IgAN) after renal transplantation is important as a cause of graft failure under improving rejection control. However, no specific therapy for recurrent IgAN is currently available. In this study, we evaluated the histological efficacy of tonsillectomy for allograft IgAN.
METHODS: Fifteen kidney recipients (male 9, female 6, mean age 40.9 ± 9.3 years), who received a diagnosis of IgA nephropathy by allograft biopsy, were enrolled in this study. Tonsillectomy was performed 44.1 ± 27.1 months after the kidney transplantation. All patients underwent a repeat graft biopsy at 23.8 ± 15.8 months after tonsillectomy.
RESULTS: Six patients had microhematuria before tonsillectomy. At 12 months after treatment, the microhematuria disappeared in five of these patients and one patient had mild hematuria. Three patients had severe proteinuria (more than 1.0 g/gCr) before tonsillectomy and improved after treatment. On histological analysis, four patients had acute lesions including cellular or fibrocellular crescents. The acute lesions disappeared after these treatments in all patients. Eleven patients had chronic lesions including global sclerosis, segmental sclerosis and fibrous crescents. The chronic lesion was ameliorated in six patients, unchanged in three and deteriorated in two patients.
CONCLUSIONS: Tonsillectomy improves not only clinical findings but also ameliorates histological damage caused by recurrent IgAN after kidney transplantation. Tonsillectomy is a novel and effective treatment for recurrent IgAN.
METHODS: Fifteen kidney recipients (male 9, female 6, mean age 40.9 ± 9.3 years), who received a diagnosis of IgA nephropathy by allograft biopsy, were enrolled in this study. Tonsillectomy was performed 44.1 ± 27.1 months after the kidney transplantation. All patients underwent a repeat graft biopsy at 23.8 ± 15.8 months after tonsillectomy.
RESULTS: Six patients had microhematuria before tonsillectomy. At 12 months after treatment, the microhematuria disappeared in five of these patients and one patient had mild hematuria. Three patients had severe proteinuria (more than 1.0 g/gCr) before tonsillectomy and improved after treatment. On histological analysis, four patients had acute lesions including cellular or fibrocellular crescents. The acute lesions disappeared after these treatments in all patients. Eleven patients had chronic lesions including global sclerosis, segmental sclerosis and fibrous crescents. The chronic lesion was ameliorated in six patients, unchanged in three and deteriorated in two patients.
CONCLUSIONS: Tonsillectomy improves not only clinical findings but also ameliorates histological damage caused by recurrent IgAN after kidney transplantation. Tonsillectomy is a novel and effective treatment for recurrent IgAN.