ArticleWorld journal of urology2026
Visual assessment of Randall's plaque using traxer grading and its correlations with demographic characteristics, metabolic parameters and stone analysis.
Article in World journal of urology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo evaluate the presence of Randall's plaque and its severity in patients with nephrolithiasis and to correlate it with demographic characteristics, metabolic parameters and stone analysis.
methodsConsecutive patients undergoing retrograde intrarenal surgery (RIRS) who met study criteria were prospectively enrolled. Demographic characteristics and twenty-four-hour urinalysis were collected. Renal papillae were evaluated for presence of Randall's plaque and its severity graded according to Traxer grading. A fragment of stone was retrieved and analyzed using Fourier Transform Infrared (FTIR) spectroscopy. Correlations of demographic characteristics, metabolic parameters and stone analysis with severity of Randall's plaque were evaluated. A p-value of less than 0.05 was considered as statistically significant.
resultsA total of 108 patients were included in final analysis. Metabolic abnormality was seen in 68.5% of patients with most common abnormality being hypocitraturia (61.1%). Intraoperatively, a total of 839 papillae were observed with mean of 7.77 papillae per patient. Randall's plaque was identified in 66.1% of evaluable papillae and 88.9% of patients had at least one papilla affected by Randall's plaque. Most common severity of plaque was Grade 1 seen in 50.9% of papillae. Majority of stones were calcium oxalate (94.4%). Higher Traxer grade was found to be associated with younger age of patients, elevated urine oxalate and uric acid levels and calcium oxalate stones.
conclusionMetabolic abnormalities and Randall's plaque were common findings among patients with nephrolithiasis. Elevated urinary oxalate and uric acid levels and younger age of patients were found to be associated with increased severity of Randall's plaque.
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