Urinary stone diagnosis. Morphologic and composition analysis.

Abstract:

:Analysis of urinary stones is an essential step in establishing the diagnosis and treatment of the stone patient. In fact, the need for an exhaustive study of the stones increases as the relationships between the type of stone and the etiological factors that predispose to this disease become evident. The enumeration (qualitative or quantitative) of the major components that make up the kidney stone (calcium oxalate monohydrate, calcium oxalate dihydrate, uric acid, calcium phosphates, cystine), which is obtained by the most commonly used analytical method, infrared spectroscopy (IR), is no longer enough to guide the urologist on the etiology of the disease. Only a detailed structural analysis and macro and micro components can provide key information on the etiology of the stone, and therefore, on the possible causes that have led to its formation. This study should conclude with a report that is provided to the Urologist. Obtaining this report involves a detailed study, sample by sample, which involves the systematic handling of stereoscopic microscopy, IR spectroscopy and scanning electron microscopy (SEM) with energy dispersive X-raymicroanalysis (EDAX). :El análisis de los cálculos urinarios es un paso esencial para establecer el diagnóstico y tratamiento del paciente litiásico. De hecho, la necesidad de un estudio exhaustivo de los cálculos aumenta a medida que se evidencian las relaciones entre la tipologíadel cálculo y los factores etiológicos que predisponen a esta enfermedad. La relación de los componentes mayoritario sque componen el cálculo renal (oxalato cálcico monohidrato, oxalato cálcico dihidrato, ácido úrico, fosfatos cálcicos, cistina), que se obtiene por el método analítico generalmente más utilizado, la espectroscopía infrarroja (IR), ya no es suficiente para orientar al urólogo sobre la etiología de la enfermedad. Únicamente un detallado análisis estructural y de macro y micro componentes permite aportar información clave sobre el origen del cálculo, y por tanto, de las posibles causas que han inducido a su formación. Este estudio debe concluir con un informe que se suministra al Urólogo. La obtención de este informe supone un estudio en detalle, muestra a muestra, que implica el manejo sistemático de microscopía estereoscópica, espectroscopía IR y microscopía electrónica de barrido (SEM) con microanálisis por energía dispersiva de rayos X (EDAX).

journal_name

Arch Esp Urol

authors

Grases F,Costa-Bauza A

subject

Has Abstract

pub_date

2021-01-01 00:00:00

pages

35-48

issue

1

eissn

0004-0614

issn

1576-8260

pii

2021-74-1-301af1399f6fe7065a83d93ad31d990e622f5b34

journal_volume

74

pub_type

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