Impact of the adherence to medical treatment on the main urinary metabolic disorders in patients with kidney stones

Asian J Urol. 2021 Jul;8(3):275-279. doi: 10.1016/j.ajur.2020.07.002. Epub 2020 Aug 6.

Abstract

Objective: To assess the effect of the adherence to medical treatment on urinary parameters in the 24-h metabolic study of patients with kidney stones.

Methods: A retrospective, longitudinal, descriptive, and observational study was carried out by reviewing the hospital electronic medical record from 2014 to 2018. The adherence to drug treatment was measured 6 months after its initiation, and the numerical values of the metabolic studies were compared. Wilcoxon tests were performed to compare the difference before and after treatment.

Results: Ninety patients were evaluated, with 73.3% of adherence. The 180-day overall adherence rate was 61.2% in patients treated with a single drug and 85.4% in patients treated with multiple drugs. There is a statistically significant increase in citrate levels in patients with good adherence in comparison with non-adherent patients (p=0.031 vs. p=0.528).

Conclusions: Medical treatment and dietary measures in patients with kidney stones have an initial impact at 6 months on the values of the main urinary metabolic alterations that predispose to calculi formation; the most significant is seen in those patients with adherence to medical treatment for hypocitraturia.

Keywords: Citrate; Kidney stones; Lithiasis; Medical treatment; Metabolic disorders; Oxalate; Renal stones.