Laxative Use and Change in Estimated Glomerular Filtration Rate in Patients With Advanced Chronic Kidney Disease.
Laxative Use and Change in Estimated Glomerular Filtration Rate in Patients With Advanced Chronic Kidney Disease.
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DOI：
10.1053/j.jrn.2020.08.005
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发表时间：
2021-07
期刊：
影响因子：
--
通讯作者：
Kovesdy CP
中科院分区：
文献类型：
--
作者：
Sumida K;Dashputre AA;Potukuchi PK;Thomas F;Obi Y;Molnar MZ;Gatwood JD;Streja E;Kalantar-Zadeh K;Kovesdy CP
Constipation is highly prevalent in advanced chronic kidney disease (CKD), due in part to dietary (e.g., fiber) restrictions, and is often managed by laxatives; however, the effect of laxative use on kidney function in advanced CKD remains unclear. We aimed to examine the association of laxative use with longitudinal change in estimated glomerular filtration rate (eGFR) in patients with advanced CKD. In a retrospective cohort of 43,622 US veterans transitioning to end-stage renal disease (ESRD) from 2007–2015, we estimated changes in eGFR (slope) by linear mixed-effects models using ≥2 available outpatient eGFR measurements during the 2-year period before transition to ESRD. The association of laxative use with change in eGFR was examined by testing the interaction of time-varying laxative use with time for eGFR slope in the mixed-effects models with adjustment for fixed and time-varying confounders. Laxatives were prescribed in 49.8% of patients during the last 2-year pre-ESRD period. In the crude model, time-varying laxative use was modestly associated with more progressive eGFR decline compared with non-use of laxatives (median [IQI], −7.1 [−11.9, −4.3] vs. −6.8 [−11.6, −4.0] mL/min/1.73 m2/year, P<0.001). After multivariable adjustment, a faster eGFR decline associated with laxative use (vs. non-use of laxatives) remained statistically significant, although the between-group difference in eGFR slope was minimal (median [IQI], −8.8 [−12.9, −5.9] vs. −8.6 [−12.6, −5.6] mL/min/1.73 m2/year, P<0.001). The significant association was no longer evident across different types of laxatives (i.e., stool softeners, stimulants, or hyperosmotics). There was a clinically negligible association of laxative use with change in eGFR during the last 2-year pre-ESRD period, suggesting the renal safety profile of laxatives in advanced CKD patients.
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