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Related Concept Videos

Hemodialysis I: Introduction01:25

Hemodialysis I: Introduction

Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
Hemodialysis II: Procedure and Complications01:24

Hemodialysis II: Procedure and Complications

DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
Hemodialysis III: Nursing Management01:25

Hemodialysis III: Nursing Management

The nursing management of a patient undergoing hemodialysis includes several critical steps, starting with a thorough assessment before the procedure.Before the Hemodialysis ProcedureFirst, record the patient's vital signs—blood pressure, heart rate, respiratory rate, and temperature—to establish a baseline. This baseline is essential for detecting conditions such as hypotension that could impact the patient's response to dialysis. Document the patient's pre-dialysis weight, as this measurement...
Dialysis01:15

Dialysis

Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
Extracorporeal Removal of Drugs: Hemoperfusion and Hemofiltration01:25

Extracorporeal Removal of Drugs: Hemoperfusion and Hemofiltration

Hemoperfusion and hemofiltration are critical techniques in medical treatments to eliminate accumulated drugs, metabolites, and electrolytes from the bloodstream. These methods are particularly vital in cases of accidental poisoning and drug overdose.Hemoperfusion involves passing blood through an adsorbent material to remove unwanted substances. The main adsorbents used in hemoperfusion include activated charcoal and Amberlite resins. Activated charcoal can adsorb both polar and nonpolar...
Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis01:30

Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis

Patients with end-stage renal disease (ESRD) or those experiencing drug overdose often require extracorporeal methods to eliminate accumulated drugs and metabolites. Hemoperfusion, hemofiltration, and dialysis are the primary techniques to rapidly remove harmful substances without disrupting the patient's fluid and electrolyte balance. For those with compromised renal function, dosage adjustments of concurrent medications may be necessary during extracorporeal drug removal.Dialysis is a process...

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Related Experiment Video

Updated: Jul 12, 2026

An Open-Source Normothermic Perfusion System Designed for Research Scientists
11:23

An Open-Source Normothermic Perfusion System Designed for Research Scientists

Published on: July 18, 2025

Optimizing the Priming Process for Hemoadsorption Combined with Hemodialysis (HAHD): A Two-Stage In Vitro and

Lingling Liu, Yanqing Jie, Xiaojing Tang

    Blood Purification
    |July 10, 2026
    PubMed
    Summary

    A new tandem priming method for Hemoadsorption Combined with Hemodialysis (HAHD) is faster and uses fewer resources than traditional methods. This efficient protocol is safe and maintains clinical efficacy for patients.

    Related Experiment Videos

    Last Updated: Jul 12, 2026

    An Open-Source Normothermic Perfusion System Designed for Research Scientists
    11:23

    An Open-Source Normothermic Perfusion System Designed for Research Scientists

    Published on: July 18, 2025

    Area of Science:

    • Nephrology
    • Biomedical Engineering
    • Medical Devices

    Background:

    • Conventional priming for Hemoadsorption Combined with Hemodialysis (HAHD) is complex, time-consuming, and resource-intensive.
    • Developing a standardized, efficient, and safe tandem priming protocol is crucial for improving HAHD procedures.

    Purpose of the Study:

    • To develop and validate a standardized, efficient, and safe tandem priming protocol for HAHD.
    • To systematically evaluate the operational efficiency, circuit cleanliness, clinical efficacy, and safety of the novel tandem priming method.

    Main Methods:

    • A two-stage in vitro screening and clinical validation design was used with the HA130 hemoadsorption cartridge.
    • Four novel tandem priming methods were compared against traditional separate-priming in vitro.
    • A single-center, single-blind randomized controlled trial involving 53 maintenance hemodialysis patients validated the optimized tandem protocol.

    Main Results:

    • In vitro, all tandem priming methods were significantly faster (26.05-34.89 min vs. 55.40 min) and used fewer resources than the traditional method.
    • The optimized tandem protocol (50 mL/min slow-prime with 2000 mL fast-flush) showed a low and comparable incidence of circuit clotting (3.45% vs. 4.17%) in the clinical trial.
    • Therapeutic efficacy, measured by solute reduction (urea, creatinine, β2-microglobulin), was comparable between the tandem and traditional priming groups.

    Conclusions:

    • The novel tandem priming protocol offers a highly efficient, resource-sparing, and safe alternative to traditional HAHD priming methods.
    • This protocol maintains therapeutic efficacy and circuit patency, providing a standardized solution for clinical practice.
    • The optimized tandem priming method represents a valuable advancement in HAHD procedures.