Evidence map›Paper›PMID 29333512›Full record

ArticleInvestigative and clinical urology2018

Fourier transform infrared spectroscopy for analysis of kidney stones.

Aysha Habib Khan, Sheharbano Imran, Jamsheer Talati, Lena Jafri

Abstract readComparative Study
In one paragraph

Article in Investigative and clinical urology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Observational
  7. Review
  8. Article
  9. Article
  10. CarboxymethylatedBiomolecules · 2023
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  11. Article
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  16. Review
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  18. Exploring the Therapeutic Mechanism ofFrontiers in pharmacology · 2018
    Article
  19. Article
  20. Correlations between stones composition, dietary and comorbidities context of the lithiasic patient.Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie
    Article
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

4 authors.

Aysha Habib KhanDepartment of Pathology and Laboratory Medicine, Aga Khan University, Karachi, Pakistan.
Sheharbano ImranDepartment of Pathology and Laboratory Medicine, Aga Khan University, Karachi, Pakistan.
Jamsheer TalatiDepartment of Surgery, Aga Khan University, Karachi, Pakistan.
Lena JafriDepartment of Pathology and Laboratory Medicine, Aga Khan University, Karachi, Pakistan.ORCID https://orcid.org/0000-0001-6807-5429

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo compare the results of a chemical method of kidney stone analysis with the results of Fourier transform infrared (FT-IR) spectroscopy. MATERIALS AND

methodsKidney stones collected between June and October 2015 were simultaneously analyzed by chemical and FT-IR methods.

resultsKidney stones (n=449) were collected from patients from 1 to 81 years old. Most stones were from adults, with only 11.5% from children (aged 3-16 years) and 1.5% from children aged <2 years. The male to female ratio was 4.6. In adults, the calcium oxalate stone type, calcium oxalate monohydrate (COM, n=224), was the most common crystal, followed by uric acid and calcium oxalate dihydrate (COD, n=83). In children, the most frequently occurring type was predominantly COD (n=21), followed by COM (n=11), ammonium urate (n=10), carbonate apatite (n=6), uric acid (n=4), and cystine (n=1). Core composition in 22 stones showed ammonium urate (n=2), COM (n=2), and carbonate apatite (n=1) in five stones, while uric acid crystals were detected (n=13) by FT-IR. While chemical analysis identified 3 stones as uric acid and the rest as calcium oxalate only. Agreement between the two methods was moderate, with a kappa statistic of 0.57 (95% confidence interval, 0.5-0.64). Disagreement was noted in the analysis of 77 stones.

conclusionsFT-IR analysis of kidney stones can overcome many limitations associated with chemical analysis.

Indexed as

AdolescentAdultAgedAged, 80 and overCalcium OxalateChildChild, PreschoolColorimetryCross-Sectional StudiesHumansInfantKidney CalculiMiddle AgedReproducibility of ResultsSpecimen HandlingSpectroscopy, Fourier Transform InfraredCalcium OxalateUric AcidAnalytical techniquesSpectroscopy, near-infraredUrinary calculi

Identifiers

PMID29333512
PMCPMC5754580

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