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Efficacy of statin on vascular access patency in diabetic hemodialysis patients
Satoru Sanada1, Yasunori Miyasaka1, Atsuhiro Kanno1
1Division of Nephrology, Japan Community Health Care Organization Sendai Hospital, Miyagi - Japan.
Insights
Statin treatment may improve vascular access patency in diabetic hemodialysis patients with native arteriovenous fistulas. This study found statin users had better vascular access outcomes compared to non-users.
Area of Science:
- Nephrology
- Cardiovascular Medicine
- Pharmacology
Background:
- Preventing hemodialysis vascular access dysfunction remains a challenge, with prior drug studies yielding inconsistent results.
- This research specifically investigates diabetic patients undergoing hemodialysis with native arteriovenous fistulas.
Purpose of the Study:
- To evaluate the impact of statin treatment on vascular access patency in diabetic hemodialysis patients.
- To determine if statins can reduce vascular access dysfunction in this population.
Main Methods:
- A retrospective cohort study included 268 diabetic nephropathy patients starting hemodialysis between 2011-2013.
- Patients were followed for two years, with vascular access dysfunction as the primary outcome.
- Kaplan-Meier analysis and Cox proportional hazard models were used to assess statin's effect, adjusting for covariates.
Main Results:
- The two-year vascular access patency rate was higher in statin users (55.0%) compared to non-users (36.1%).
- Statin users demonstrated a significantly longer vascular access survival period (log-rank test, p = 0.004).
- Multivariable analysis confirmed statin treatment was significantly associated with better vascular access outcomes (adjusted hazard ratio = 0.63, p = 0.007).
Conclusions:
- Statin treatment is associated with improved vascular access dysfunction in diabetic patients on hemodialysis.
- These findings suggest statins may be a beneficial intervention for maintaining vascular access in this patient group.
Introduction:
An effective approach to prevent hemodialysis vascular access dysfunction is still unclear despite previous studies, which have shown conflicting results of several drugs on vascular access outcomes. In this study, we focused on diabetic hemodialysis patients with native arteriovenous fistula and evaluated the impact of statin treatment on vascular access patency.
Methods:
A retrospective cohort study of 268 consecutive patients who newly started hemodialysis due to diabetic nephropathy between January 2011 and December 2013 at Japan Community Health Care Organization Sendai Hospital was performed and the patients were followed for two years. The primary outcome was vascular access dysfunction. Effect of statin treatment was examined using Kaplan Meier analysis and Cox proportional hazard, after adjusting for covariates.
Results:
The mean follow-up period was 426.7 days, and 117 (52.2%) patients developed vascular access dysfunction. The two-year patency rate was 55.0% among statin users and 36.1% in non-users. Vascular access survival period was significantly longer among statin users (log-rank test, p = 0.004). In multivariable analysis, statin treatment is significantly associated with better vascular access outcomes, in which the hazard ratio was 0.71 (95% CI, 0.52 to 0.97; p = 0.028) in the unadjusted model and 0.63 (95% CI, 0.45 to 0.88; p = 0.007) after adjustment for covariates.
Conclusions:
Statin treatment could be associated with improved vascular access dysfunction among diabetic hemodialysis patients.
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