Changes in renal papillary density after hydration therapy in calcium stone formers.
BMC Urol
; 18(1): 101, 2018 Nov 12.
Article
en En
| MEDLINE
| ID: mdl-30419887
BACKGROUND: Previous studies have shown that, compared with non-stone formers, stone formers have a higher papillary density measured with computer tomography (CT) scan. The effect of increased hydration on such papillary density in idiopathic calcium stone formers is not known. METHODS: Patients with recurrent calcium oxalate stones undergoing endourological procedures for renal stones at our Institution from June 2013 to June 2014 were considered eligible for enrolment. Enrolled patients underwent a baseline unenhanced CT scan before the urological procedure; after endoscopic removal of their stones, the patients were instructed to drink at least 2 L/day of a hypotonic, oligomineral water low in sodium and minerals (fixed residue at 180 °C < 200 mg/L) for at least 12 months. Finally, the patients underwent a follow-up unenhanced CT scan during hydration regimen. RESULTS: Twenty-five patients were prospectively enrolled and underwent baseline and follow-up CT scans. At baseline, mean papillary density was 43.2 ± 6.6 Hounsfield Units (HU) (43.2 ± 6.7 for the left kidney and 42.8 ± 7.1 HU for the right kidney). At follow-up and after at least 12 months of hydration regimen, mean papillary density was significantly reduced at 35.4 ± 4.2 HU (35.8 ± 5.0 for the left kidney and 35.1 ± 4.2 HU for the right kidney); the mean difference between baseline and follow-up was - 7.8 HU (95% confidence interval - 10.6 to - 5.1 HU, p < 0.001). CONCLUSIONS: Increased fluid intake in patients with recurrent calcium oxalate stones was associated with a significant reduction in renal papillary density. TRIAL REGISTRATION: NCT03343743 , 15/11/2017 (Retrospectively registered).
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Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Oxalato de Calcio
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Cálculos Renales
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Fluidoterapia
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Médula Renal
Tipo de estudio:
Etiology_studies
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Incidence_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Idioma:
En
Revista:
BMC Urol
Asunto de la revista:
UROLOGIA
Año:
2018
Tipo del documento:
Article