Easy-to-use equations for the estimation of urine relative saturation in the assessment of risk of recurrence in urinary stones formers.
It is a fact that recurrence of urinary stones is a common medical problem. One of the key factors used in determining the risk of urinary stone-formation is the urine relative saturation in the major constituents of lithiasis. Nomograms were developed in the 1970's to estimate the relative saturation of urine. We present here easy-to-use mathematical equations derived from these nomograms. These equations can be integrated directly in the LIS of any laboratories, and can be used as a tool in the treatment and prevention of recurrent stone-formation.
Division of Clinical Biochemistry, CIUSSS de l'Est-de-l'Île-de-Montréal, Maisonneuve-Rosemont Hospital, Montréal, QC, Canada. Electronic address: genevieve.plante@umontreal.ca.
Geneviève
G
Plante
Division of Nephrology, CIUSSS de l'Est-de-l'Île-de-Montréal, Maisonneuve-Rosemont Hospital, Montréal, QC, Canada.
Denis
D
Ouimet
Division of Clinical Biochemistry, CIUSSS de l'Est-de-l'Île-de-Montréal, Maisonneuve-Rosemont Hospital, Montréal, QC, Canada. Electronic address: rrobitaille.hmr@ssss.gouv.qc.ca.
Robert
R
Robitaille
D000465:Algorithms; D000641:Ammonia / Q000652:urine; D002118:Calcium / Q000652:urine; D002129:Calcium Oxalate / Q000032:analysis; D002130:Calcium Phosphates / Q000032:analysis; D003545:Cysteine / Q000652:urine; D003553:Cystine / Q000032:analysis; D006786:Hospitals, Urban; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007669:Kidney Calculi / Q000737:chemistry*; D008274:Magnesium / Q000652:urine; D008954:Models, Biological; D019815:Oxalic Acid / Q000652:urine; D010710:Phosphates / Q000652:urine; D011792:Quebec / Q000453:epidemiology; D012008:Recurrence; D012074:Remission Induction; D012307:Risk Factors; D000069877:Struvite / Q000032:analysis; D014527:Uric Acid / Q000032:analysis; D014545:Urinary Calculi / Q000453:epidemiology / Q000628:therapy / Q000652:urine*
D002130:Calcium Phosphates; D010710:Phosphates; C022045:octacalcium phosphate; D002129:Calcium Oxalate; D014527:Uric Acid; D003553:Cystine; D000641:Ammonia; D019815:Oxalic Acid; D000069877:Struvite; D008274:Magnesium; D003545:Cysteine; D002118:Calcium