Related Experiment Video
Updated: Jan 2, 2026
09:41
Hemocompatibility Testing of Blood-Contacting Implants in a Flow Loop Model Mimicking Human Blood Flow
Published on: March 5, 2020
10.0K
Biocompatibility of Hemodialysis
Małgorzata Gomółka1, Longin Niemczyk2, Katarzyna Szamotulska3
1Department of Internal Medicine, Nephrology and Dialysis, Military Institute of Medicine, Warsaw, Poland.
Advances in Experimental Medicine and Biology
|December 14, 2019
Summary
Hemodialysis procedures are biocompatible, with minimal changes in inflammatory markers. While C-reactive protein (CRP) increased, it does not indicate clinical harm or serve as a reliable biocompatibility measure.
Area of Science:
- Biomaterials Science
- Nephrology
- Clinical Chemistry
Background:
- Hemodialysis involves blood contact with artificial membranes, raising biocompatibility concerns.
- Assessing biocompatibility requires understanding the impact on blood components and inflammatory markers.
Purpose of the Study:
- To investigate the biocompatibility of low-flux (lfHD), high-flux (hfHD), and hemodiafiltration (HDF) by measuring blood markers.
- To compare changes in collagenase, cathepsin B, neutrophil myeloperoxidase (MPO), and C-reactive protein (CRP) after dialysis.
Main Methods:
- Blood samples were analyzed before and after single dialysis sessions and an 8-week therapy course.
- Nineteen patients with chronic nephropathy underwent lfHD, hfHD, or HDF.
- Levels of collagenase, cathepsin B, MPO, and CRP were quantified.
Main Results:
- Collagenase increased significantly after single sessions across all dialysis types.
- Cathepsin B decreased significantly only after hfHD.
- CRP increased after single hfHD and HDF sessions; this effect persisted after 8 weeks only for HDF.
- Neutrophil MPO remained below detection limits, indicating no activation.
Conclusions:
- All tested hemodialysis methods appear biocompatible, unlikely causing clinical harm.
- Proteolytic enzymes and MPO are not suitable estimators of hemodialysis biocompatibility due to minor and inconsistent changes.
- Elevated CRP suggests a general pro-inflammatory response but is not a reliable indicator of biocompatibility.
Related Concept Videos
01:25Hemodialysis I: Introduction
1.1K
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...
1.1K
01:24Hemodialysis II: Procedure and Complications
503
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,...
503
01:25Hemodialysis III: Nursing Management
632
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...
632
01:30Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis
308
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...
308
01:27Dialysis
1.1K
Renal failure occurs when the kidneys lose their ability to filter waste products from the blood effectively. It can be classified into two types: acute renal failure (ARF) and chronic renal failure (CRF).
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
1.1K
01:15Dialysis
1.5K
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...
1.5K