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Background <p>Protein-energy wasting (PEW), a unique weight loss linked to nutritional and metabolic abnormalities, is common in patients undergoing hemodialysis (HD) and associated with adverse outcomes. This study investigated whether extended-hours HD combined with a liberalized diet could overcome PEW and improve survival.</p> Methods <p>The body mass index (BMI) and survival outcomes in patients undergoing extended-hours HD were evaluated for up to 8&#xa0;years using data from the LIBeralized diet Extended-houRs hemodialysis Therapy (LIBERTY) cohort. Extended-hours HD was defined as weekly dialysis length ≥ 18&#xa0;h.</p> Results <p>The LIBERTY cohort included 402 patients who initiated extended-hours HD. An increase in the length and frequency of HD sessions was observed over time, with approximately 70% and 20% of patients undergoing extended-hours HD for &gt; 21&#xa0;h/week and &gt; 3 sessions/week at 5&#xa0;years, respectively. The BMI and percentage creatinine generation rate were maintained over time, with no substantial increase in the phosphorus and potassium levels. The estimated BMI initially increased, and thereafter plateaued over time in patients with a baseline BMI &lt; 25&#xa0;kg/m<sup>2</sup>, whereas it decreased gradually in patients with a baseline BMI ≥ 25&#xa0;kg/m<sup>2</sup> after several years from baseline. Ninety-one patients died, and 108 discontinued extended-hours HD during the median follow-up period of 6.2&#xa0;years (interquartile range, 3.5–8.0), yielding a 5-year survival rate of 85%.</p> Conclusions <p>Extended-hours HD with a liberalized diet may help achieve favorable survival outcomes and maintain nutritional status. Thus, it is a promising treatment option for managing PEW in patients undergoing HD.</p>

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Longitudinal impact of extended-hours hemodialysis with a liberalized diet on nutritional status and survival outcomes: findings from the LIBERTY cohort

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年1月28日

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  • Takahiro Imaizumi,
  • Masaki Okazaki,
  • Manabu Hishida,
  • Shimon Kurasawa,
  • Nobuhiro Nishibori,
  • Yoshihiro Nakamura,
  • Shigefumi Ishikawa,
  • Katsuhiko Suzuki,
  • Yuki Takeda,
  • Yuhei Otobe,
  • Toru Kondo,
  • Fumika Kaneda,
  • Hiroshi Kaneda,
  • Shoichi Maruyama

摘要

Background

Protein-energy wasting (PEW), a unique weight loss linked to nutritional and metabolic abnormalities, is common in patients undergoing hemodialysis (HD) and associated with adverse outcomes. This study investigated whether extended-hours HD combined with a liberalized diet could overcome PEW and improve survival.

Methods

The body mass index (BMI) and survival outcomes in patients undergoing extended-hours HD were evaluated for up to 8 years using data from the LIBeralized diet Extended-houRs hemodialysis Therapy (LIBERTY) cohort. Extended-hours HD was defined as weekly dialysis length ≥ 18 h.

Results

The LIBERTY cohort included 402 patients who initiated extended-hours HD. An increase in the length and frequency of HD sessions was observed over time, with approximately 70% and 20% of patients undergoing extended-hours HD for > 21 h/week and > 3 sessions/week at 5 years, respectively. The BMI and percentage creatinine generation rate were maintained over time, with no substantial increase in the phosphorus and potassium levels. The estimated BMI initially increased, and thereafter plateaued over time in patients with a baseline BMI < 25 kg/m2, whereas it decreased gradually in patients with a baseline BMI ≥ 25 kg/m2 after several years from baseline. Ninety-one patients died, and 108 discontinued extended-hours HD during the median follow-up period of 6.2 years (interquartile range, 3.5–8.0), yielding a 5-year survival rate of 85%.

Conclusions

Extended-hours HD with a liberalized diet may help achieve favorable survival outcomes and maintain nutritional status. Thus, it is a promising treatment option for managing PEW in patients undergoing HD.