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A newly published article in the American Journal of Kidney Diseases, titled “Explaining International Trends in Mortality on Hemodialysis Through Changes in Hemodialysis Practices in the Dialysis Outcomes and Practice Patterns Study (DOPPS),” reveals significant findings on the factors contributing to improved patient survival rates among hemodialysis patients worldwide. The study, led by Arbor Research Collaborative for Health research scientist, Keith P. McCullough, PhD, highlights the critical role that evolving facility dialysis practices have played in reducing mortality rates across different continental regions.
The observational prospective cohort study analyzed data from 500 hemodialysis facilities participating in DOPPS between 1999 and 2015. It focused on adult patients undergoing hemodialysis in the United States, Japan, and four European countries: Germany, Italy, Spain, and the United Kingdom.
“These findings underscore the critical importance of evolving common facility dialysis practices in improving patient survival worldwide. Our study demonstrates that targeted advancements, such as enhanced phosphorus management and the increased use of arteriovenous (AV) fistulae, have significantly contributed to the remarkable improvements in survival rates among hemodialysis patients, says Dr. Keith P. McCullough, lead author. “This progress reflects the dedication of healthcare professionals across the globe to continually refine and optimize care practices, offering a promising path forward for even greater patient outcomes in the future.”
Key Findings:
- Europe: A 13% improvement in case-mix adjusted survival per decade was observed, with 77% of this improvement attributable to facility practices, particularly enhancements in Kt/V and phosphorus management.
- Japan: The study found a 12% improvement in survival per decade, with 73% of this attributed to practices such as better Kt/V management and controlling interdialytic weight gain.
- United States: A remarkable 47% improvement in survival per decade was observed, with 56% of this attributed to practices including the increased use of AV fistulae and improved phosphorus control.
These results highlight the substantial impact that targeted improvements in hemodialysis facility practices have had on patient outcomes over the past two decades. The study employed mediation analyses, adjusting for case mix, to identify the specific practices contributing to survival improvements in each region.
Notable improvements in adjusted hemodialysis patient survival in Europe, Japan, and the United States from 1999 to 2015 can be largely explained by advancements in specific facility practices. The study emphasizes the potential for further improvements in patient survival through continued evolution and implementation of these practices.
The authors note that unmeasured changes in patient characteristics over time could confound some of the observed associations, though the study provides robust evidence of the benefits of specific facility practices.
This research underscores the importance of ongoing efforts to optimize dialysis practices globally and provides a roadmap for future improvements in patient care and outcomes.
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