Avoiding Systemic Heparinization During Hemodialysis: How the Dialysis Setup Might Help
Research article published in Seminars in nephrology (2024)
Abstract
Heparin is the most widely used anticoagulant for maintaining patency of the extracorporeal blood circuit during intermittent hemodialysis. Inadvertently, this leads to systemic heparinization of the patient. Repeated intermittent heparinization during hemodialysis has been associated with increased bleeding risks and metabolic and immunologic effects. Alternative strategies for minimizing systemic anticoagulation encompass dilution methods, regional citrate anticoagulation, priming of the extracorporeal circuit, and modifications to dialyzer membranes and dialysate composition. The effectiveness of these alternatives in maintaining patency of the extracorporeal circuit varies substantially. Although most studies have focused on particular changes in the hemodialysis setup, several combined interventions for adapting the hemodialysis setup are now being studied. This narrative review aims to present an overview of the current landscape of hemodialysis setup strategies aimed at limiting or avoiding systemic anticoagulation during treatment. Additionally, this review intends to shed light on the underlying pathophysiological mechanisms that contribute to variations observed in reported outcomes.
Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.
Resumen
Peer-reviewed research on safety and infection-control considerations relevant to leech therapy and anticoagulation. Indexed in PubMed and verified against the NCBI record.
Por qué esto importa para la hirudoterapia
Esta revisión narrativa examina estrategias para mantener la permeabilidad del circuito de hemodiálisis extracorpórea mientras se limita la exposición sistémica a heparin —incluyendo métodos de dilución, anticoagulación regional con citrato, cebado del circuito y modificaciones de la membrana del dializador y del dializado—, señalando que la heparinización repetida conlleva riesgos hemorrágicos, metabólicos e inmunológicos y que la efectividad de las alternativas varía. Para ASH, se trata de un contexto general de seguridad de la anticoagulación; el tema clínico recurrente de minimizar la anticoagulación sistémica es conceptualmente adyacente a la razón por la que la aplicación local de sanguijuelas a veces se prefiere sobre los agentes sistémicos, pero la revisión trata sobre ingeniería de diálisis, no sobre sanguijuelas. Advertencia: al ser una revisión narrativa del manejo del circuito de hemodiálisis sin contenido sobre sanguijuelas medicinales, solo informa el razonamiento de fondo sobre la anticoagulación local frente a la sistémica y no proporciona evidencia directa de hirudoterapia.
Citación
Avoiding Systemic Heparinization During Hemodialysis: How the Dialysis Setup Might Help.
Janssens et al. · Seminars in nephrology, 2024
Contexto clínico relacionado
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Añadido a la biblioteca ASH: May 28, 2026 · Última actualización del sitio: June 18, 2026