Interchangeability between 24-hour collection and single spot urines for vanillylmandelic and homovanillic acid levels in the diagnosis of neuroblastoma

Autor: Cangemi, G, Barco, S, Reggiardo, G, Viscardi, E, DI CATALDO, Andrea, Garaventa, A, Melioli, G, Conte, M.
Rok vydání: 2013
Předmět:
Zdroj: Pediatric bloodcancer. 60(12)
ISSN: 1545-5017
Popis: The determination of the two urinary catecholamine metabolites homovanillic acid (HVA) and vanillylmandelic acid (VMA) is of crucial importance for the diagnosis and follow-up of neuroblastoma (NB). The standard practice for their measurement requires the use of 24-hour collections that are time consuming and difficult to obtain. In this article, we directly demonstrate that 24-hour collections and single spot urines are interchangeable for the determination of HVA and VMA expressed as ratio on creatinine concentration. This study can be useful for a faster management of NB at onset.
Databáze: OpenAIRE