Abstract
Background: The aim of the study was to investigate the interconversion of the stone chemical composition of two recurrent stone episodes in stone formers.
Methods: The data of 1098 stones analyses from 549 patients with a history of two renal stone episodes were selected and reviewed. The stone composition between the two recurrent episodes of stones was compared.
Results: The percent occurrences of stones caused by infection, known as infection stones, in new episodes of stones significantly increased by 7% and uric acid stones increased by 3.8% while the calcium oxalate stones decreased by 13.1% (each p<0.05). The mean recurrent interval of new episodes of stones was 34.2 months. Infection stones had a significant shorter interval time compared to calcium oxalate stones (p<0.001). On a patient-by-patient investigation, 32.9% of patients underwent conversions of stone compositions, with 31.9% and 34.1% in men and female, respectively (p=0.590). The mutual conversion of infection stones to calcium oxalate stones was most common. The 61.1% of patients with uric acid recurrent stones were composed of calcium oxalate in the previous episode of stones, and 5% and 51.7% of patients with infection stones developed stones of uric acid or calcium oxalate in the new episode, respectively.
Conclusions: Alterations of stone components during follow-up were found in as high as 32.9% of patients with no gender difference. The impetus of these shifts is not readily apparent. Accurate and repeated stone analyses throughout the course of recurrent stone disease are highly warranted, which may be useful to prevent recurrence of composition-specific stones.
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©2014 by Walter de Gruyter Berlin/Boston
Articles in the same Issue
- Frontmatter
- Editorial
- Diagnosis of diabetes mellitus: reiterated responsibilities for the clinical laboratory
- Review
- The association between plasminogen activator inhibitor type 1 (PAI-1) levels, PAI-1 4G/5G polymorphism, and myocardial infarction: a Mendelian randomization meta-analysis
- Opinion Papers
- Harmonization of quality indicators in laboratory medicine. A preliminary consensus
- Cardiac biomarkers and risk assessment in patients undergoing major non-cardiac surgery: time to revise the guidelines?
- General Clinical Chemistry and Laboratory Medicine
- A statistical basis for harmonization of thyroid stimulating hormone immunoassays using a robust factor analysis model
- Sigma metrics used to assess analytical quality of clinical chemistry assays: importance of the allowable total error (TEa) target
- Combined light chain immunofixation to detect monoclonal gammopathy: a comparison to standard electrophoresis in serum and urine
- Automated indirect immunofluorescence microscopy enables the implementation of a quantitative internal quality control system for anti-nuclear antibody (ANA) analysis
- Peripheral blood lymphocytes from patients with bipolar disorder demonstrate apoptosis and differential regulation of advanced glycation end products and S100B
- Coefficient of energy balance, a new parameter for basic investigation of the cerebrospinal fluid
- Interconversion of stone composition profiles from two recurrent stone episodes in stone formers
- Reference Values
- Complete blood count reference intervals and age- and sex-related trends of North China Han population
- Cancer Diagnostics
- The quantification of HER2 and MYC gene fragments in cell-free plasma as putative biomarkers for gastric cancer diagnosis
- Cardiovascular Diseases
- Novel sensitive cardiac troponin I immunoassay free from troponin I-specific autoantibody interference
- Interleukin-6 receptor Asp358Ala gene polymorphism is associated with plasma C-reactive protein levels and severity of aortic valve stenosis
- Diabetes
- Stability of glucose in plasma with different anticoagulants
- Plasma glucose measurement in diabetes: impact and implications of variations in sample collection procedures with a focus on the first hour after sample collection
- Changing from glucose to HbA1c for diabetes diagnosis: predictive values of one test and importance of analytical bias and imprecision
- System accuracy evaluation of systems for point-of-care testing of blood glucose: a comparison of a patient-use system with six professional-use systems
- Letter to the Editors
- Reply to the article entitled “Identification of an 18 bp deletion in the TWIST1 gene by CO-amplification at lower denaturation temperature-PCR (COLD-PCR) for non-invasive prenatal diagnosis of craniosynostosis: first case report” by Galbiati et al., Clin Chem Lab Med 2014;52(4):505–9
- Further considerations concerning non-invasive prenatal diagnosis of craniosynostosis based on the identification of an 18 bp deletion in the TWIST1 gene by COLD-PCR
- Sensible use of laboratory testing requires active laboratory involvement
- Digoxin overdose – an accurate method for determining free digoxin concentrations on general chemistry analysers post DigiFab treatment
- Method-specific differences in β-isomerised carboxy-terminal cross-linking telopeptide of type I collagen and procollagen type I amino-terminal propeptide using two fully automated immunoassays
- Evaluation of mutation profiling by matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry in fine needle aspirations from papillary thyroid cancer
- Evaluation of Calfast® immunochromatographic quantitative assay for the measurement of calprotectin in faeces
- Measurement error in estimated average glucose: a novel approach
- Feasibility of an EQAS for HbA1c in Italy using fresh blood samples
- Congress Abstracts
- 5th Annual International Symposium on Kallikreins and Kallikrein-Related Peptidases
Articles in the same Issue
- Frontmatter
- Editorial
- Diagnosis of diabetes mellitus: reiterated responsibilities for the clinical laboratory
- Review
- The association between plasminogen activator inhibitor type 1 (PAI-1) levels, PAI-1 4G/5G polymorphism, and myocardial infarction: a Mendelian randomization meta-analysis
- Opinion Papers
- Harmonization of quality indicators in laboratory medicine. A preliminary consensus
- Cardiac biomarkers and risk assessment in patients undergoing major non-cardiac surgery: time to revise the guidelines?
- General Clinical Chemistry and Laboratory Medicine
- A statistical basis for harmonization of thyroid stimulating hormone immunoassays using a robust factor analysis model
- Sigma metrics used to assess analytical quality of clinical chemistry assays: importance of the allowable total error (TEa) target
- Combined light chain immunofixation to detect monoclonal gammopathy: a comparison to standard electrophoresis in serum and urine
- Automated indirect immunofluorescence microscopy enables the implementation of a quantitative internal quality control system for anti-nuclear antibody (ANA) analysis
- Peripheral blood lymphocytes from patients with bipolar disorder demonstrate apoptosis and differential regulation of advanced glycation end products and S100B
- Coefficient of energy balance, a new parameter for basic investigation of the cerebrospinal fluid
- Interconversion of stone composition profiles from two recurrent stone episodes in stone formers
- Reference Values
- Complete blood count reference intervals and age- and sex-related trends of North China Han population
- Cancer Diagnostics
- The quantification of HER2 and MYC gene fragments in cell-free plasma as putative biomarkers for gastric cancer diagnosis
- Cardiovascular Diseases
- Novel sensitive cardiac troponin I immunoassay free from troponin I-specific autoantibody interference
- Interleukin-6 receptor Asp358Ala gene polymorphism is associated with plasma C-reactive protein levels and severity of aortic valve stenosis
- Diabetes
- Stability of glucose in plasma with different anticoagulants
- Plasma glucose measurement in diabetes: impact and implications of variations in sample collection procedures with a focus on the first hour after sample collection
- Changing from glucose to HbA1c for diabetes diagnosis: predictive values of one test and importance of analytical bias and imprecision
- System accuracy evaluation of systems for point-of-care testing of blood glucose: a comparison of a patient-use system with six professional-use systems
- Letter to the Editors
- Reply to the article entitled “Identification of an 18 bp deletion in the TWIST1 gene by CO-amplification at lower denaturation temperature-PCR (COLD-PCR) for non-invasive prenatal diagnosis of craniosynostosis: first case report” by Galbiati et al., Clin Chem Lab Med 2014;52(4):505–9
- Further considerations concerning non-invasive prenatal diagnosis of craniosynostosis based on the identification of an 18 bp deletion in the TWIST1 gene by COLD-PCR
- Sensible use of laboratory testing requires active laboratory involvement
- Digoxin overdose – an accurate method for determining free digoxin concentrations on general chemistry analysers post DigiFab treatment
- Method-specific differences in β-isomerised carboxy-terminal cross-linking telopeptide of type I collagen and procollagen type I amino-terminal propeptide using two fully automated immunoassays
- Evaluation of mutation profiling by matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry in fine needle aspirations from papillary thyroid cancer
- Evaluation of Calfast® immunochromatographic quantitative assay for the measurement of calprotectin in faeces
- Measurement error in estimated average glucose: a novel approach
- Feasibility of an EQAS for HbA1c in Italy using fresh blood samples
- Congress Abstracts
- 5th Annual International Symposium on Kallikreins and Kallikrein-Related Peptidases