Clinical kidney journal · 2025
Individualizing Kt by sex and body surface area: implications for survival in hemodialysis patients.
СтатьяНазвание и аннотация: Перевод в очереди
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Sánchez-Tocino María Luz, López-González Antonio, Iglesias-González María Lorena, Villoria-González Silvia, Audije-Gil Julia, Fernández-Martín Jose Luis, Hernán David, Manso Paula, Dapena Fabiola, Arenas-Jiménez María Dolores
Аннотация
BACKGROUND: The administration of an adequate dialysis dose is a critical aspect for ensuring the effectiveness of hemodialysis (HD) treatment and improving survival. Kt is a key indicator to evaluate the dose, with two targets: based on sex (Kt-Sx) and body surface area (Kt-BSA).
METHODS: This retrospective study (2022-23) was conducted across 15 HD centers analyzed 1829 prevalent patients and 317 842 HD sessions.
RESULTS: It was found that 65.9% met both Kt targets, 21.2% met only Kt-Sx and 12.9% met neither. Failure to meet both of the targets was associated with being male, older age, shorter time on HD, higher comorbidity, low body mass index, use of a catheter, shorter sessions, conventional HD, low flow rates and small membranes. Meeting at least the Kt-Sx target was associated with a 41.6% reduction in 24-month mortality risk, and an even more favorable association was observed when both targets were met, reducing the risk by 61.7%.
CONCLUSIONS: These findings highlight the importance of personalizing dialysis considering both sex and BSA, particularly in overweight or obese patients, to improve survival.
METHODS: This retrospective study (2022-23) was conducted across 15 HD centers analyzed 1829 prevalent patients and 317 842 HD sessions.
RESULTS: It was found that 65.9% met both Kt targets, 21.2% met only Kt-Sx and 12.9% met neither. Failure to meet both of the targets was associated with being male, older age, shorter time on HD, higher comorbidity, low body mass index, use of a catheter, shorter sessions, conventional HD, low flow rates and small membranes. Meeting at least the Kt-Sx target was associated with a 41.6% reduction in 24-month mortality risk, and an even more favorable association was observed when both targets were met, reducing the risk by 61.7%.
CONCLUSIONS: These findings highlight the importance of personalizing dialysis considering both sex and BSA, particularly in overweight or obese patients, to improve survival.