Bartter-like Syndrome Induced By Tacrolimus in a Renal Transplanted Boy : A Case Report
Copyright© Bentham Science Publishers; For any queries, please email at epubbenthamscience.net..
BACKGROUND: Losing-salt tubulopathies, such as Bartter syndrome, are rare and usually inherited due to mutations of tubular reabsorption channels of the nephrons. Despite its scarcity, some cases of acquired losing-salt tubulopathies have been described. In this case report, we discuss the main aspects of Bartter syndrome and present a rare pediatric case of probable tacrolimusinduced Bartter-like syndrome in a renal transplanted boy.
CASE PRESENTATION: A ten-year-old male patient with end-stage renal disease due to endo and extra capillary glomerulonephritis was submitted to renal transplantation from a deceased donor. The post-operatory evolution was satisfactory with normalization of serum creatinine levels, mild hypertension, and the absence of metabolic disorders. The immunosuppression protocol included tacrolimus (0.3 mg/kg/day), mycophenolate (455 mg/m2/day) and prednisone (0.5 mg/kg/day). Two months later, the patient was hospitalized due to vomiting, dehydration, intense hypokalemia (1.3 mEq/L), hyponatremia (125 mEq/L), and hypochloremia (84 mmol/L). During hospitalization, he evolved with polydipsia (3000 mL/day) and polyuria (120-160 mL/m2/h) associated with major elevation of urinary potassium excretion, hypercalciuria, mild metabolic alkalosis, hyperfiltration, and proteinuria. The tacrolimus dose was reduced under the suspicion of tubular dysfunction, leading to a better metabolic profile. However, the patient developed a Banff IIb graft rejection, which required pulse therapy and elevation of tacrolimus and mycophenolate doses. Recovery of renal function parameters occurred, but the metabolic disorders worsened following tacrolimus dose elevation. The patient required chronic potassium, chloride, and sodium replacement.
CONCLUSION: After administering immunosuppressive medications, physicians should be aware of the possibility of Bartter-like or other losing-salt tubulopathies syndromes that can affect metabolic homeostasis. The suspicion must always be considered in the case of a transplanted patient who presents dehydration and hydroelectrolytic disorders right after the commencement of nephrotoxic immunosuppressive drugs, including tacrolimus and cyclosporine.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:18 |
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| Enthalten in: |
Current drug safety - 18(2023), 3 vom: 21., Seite 398-403 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Dias, Raphael Figuiredo [VerfasserIn] |
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| Links: |
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| Themen: |
Bartter-like Syndrome |
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| Anmerkungen: |
Date Completed 01.06.2023 Date Revised 01.06.2023 published: Print Citation Status MEDLINE |
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| doi: |
10.2174/1574886317666220518085725 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Copyright© Bentham Science Publishers; For any queries, please email at epubbenthamscience.net. | ||
| 520 | |a BACKGROUND: Losing-salt tubulopathies, such as Bartter syndrome, are rare and usually inherited due to mutations of tubular reabsorption channels of the nephrons. Despite its scarcity, some cases of acquired losing-salt tubulopathies have been described. In this case report, we discuss the main aspects of Bartter syndrome and present a rare pediatric case of probable tacrolimusinduced Bartter-like syndrome in a renal transplanted boy | ||
| 520 | |a CASE PRESENTATION: A ten-year-old male patient with end-stage renal disease due to endo and extra capillary glomerulonephritis was submitted to renal transplantation from a deceased donor. The post-operatory evolution was satisfactory with normalization of serum creatinine levels, mild hypertension, and the absence of metabolic disorders. The immunosuppression protocol included tacrolimus (0.3 mg/kg/day), mycophenolate (455 mg/m2/day) and prednisone (0.5 mg/kg/day). Two months later, the patient was hospitalized due to vomiting, dehydration, intense hypokalemia (1.3 mEq/L), hyponatremia (125 mEq/L), and hypochloremia (84 mmol/L). During hospitalization, he evolved with polydipsia (3000 mL/day) and polyuria (120-160 mL/m2/h) associated with major elevation of urinary potassium excretion, hypercalciuria, mild metabolic alkalosis, hyperfiltration, and proteinuria. The tacrolimus dose was reduced under the suspicion of tubular dysfunction, leading to a better metabolic profile. However, the patient developed a Banff IIb graft rejection, which required pulse therapy and elevation of tacrolimus and mycophenolate doses. Recovery of renal function parameters occurred, but the metabolic disorders worsened following tacrolimus dose elevation. The patient required chronic potassium, chloride, and sodium replacement | ||
| 520 | |a CONCLUSION: After administering immunosuppressive medications, physicians should be aware of the possibility of Bartter-like or other losing-salt tubulopathies syndromes that can affect metabolic homeostasis. The suspicion must always be considered in the case of a transplanted patient who presents dehydration and hydroelectrolytic disorders right after the commencement of nephrotoxic immunosuppressive drugs, including tacrolimus and cyclosporine | ||
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