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Related Concept Videos

Hemodialysis III: Nursing Management01:25

Hemodialysis III: Nursing Management

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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...
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Hemodialysis I: Introduction01:25

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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...
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Hemodialysis II: Procedure and Complications

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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,...
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Continuous Renal Replacement Therapy01:30

Continuous Renal Replacement Therapy

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Continuous Renal Replacement Therapy, also known as CRRT, is a procedural treatment for acute kidney injury (AKI) that gradually removes uremic toxins and fluids while maintaining acid-base balance and stabilizing electrolytes. It is particularly useful for hemodynamically unstable patients. Unlike intermittent hemodialysis, which is faster, CRRT provides a gentler approach over 24 hours, closely mimicking the function of natural kidneys. However, CRRT is not ideal for patients with...
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Peritoneal Dialysis III: Nursing Management01:25

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Peritoneal dialysis, or PD, utilizes the peritoneal membrane as a filter to eliminate excess fluid and waste products. Effective nursing management is essential for ensuring patient safety, preventing complications, and promoting optimal function of the peritoneal dialysis process.Assessment and MonitoringNurses must thoroughly assess the patient before, during, and after each dialysis session. Regular monitoring includes vital signs, daily weight, fluid intake and output, and laboratory values...
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Renal Failure: Dose Adjustments

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In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
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Related Experiment Video

Updated: Sep 17, 2025

A Murine Model of Hemodialysis Access-Related Hand Dysfunction
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Using Phantomless QCT for evaluating BMD evolution in maintenance hemodialysis patients.

Yuwen Shen1, Qing Hua2, Xinyu Pan1

  • 1Department of Medical Imaging, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School of Nanjing Medical University, No.242, GuangJi Road, Suzhou, 215008, Jiangsu, China.

Scientific Reports
|July 1, 2025
PubMed
Summary

Bone mineral density (BMD) in patients undergoing maintenance hemodialysis (MHD) initially decreases but may recover over time. Phantom-less quantitative computed tomography (PL-QCT) effectively tracks these bone density changes.

Keywords:
Bone mineral densityEvolutionHemodialysis durationMaintenance hemodialysisPhantom-less quantitative computed tomography

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Area of Science:

  • Nephrology
  • Radiology
  • Bone Metabolism

Background:

  • Maintenance hemodialysis (MHD) is associated with significant bone mineral density (BMD) loss.
  • Monitoring BMD changes is crucial for managing complications in MHD patients.

Purpose of the Study:

  • To investigate the longitudinal evolution of BMD in the thoracolumbar vertebra, total hip, and femoral neck in patients undergoing MHD.
  • To evaluate the efficacy of phantom-less quantitative computed tomography (PL-QCT) in assessing BMD changes over time.

Main Methods:

  • Prospective and retrospective cohorts of MHD patients were analyzed using PL-QCT.
  • BMD measurements were taken at baseline and at multiple time points up to 5 years of dialysis duration.
  • Patients were grouped based on hemodialysis duration to analyze BMD trends.

Main Results:

  • Thoracolumbar vertebral BMD decreased within the first 36 months of MHD, then gradually increased, significantly exceeding pre-dialysis levels after 60 months.
  • Total hip and femoral neck BMD also decreased within 36 months, showing a slower recovery trend, reaching baseline levels after 72 months.
  • PL-QCT demonstrated its utility in tracking these dynamic BMD changes.

Conclusions:

  • BMD in MHD patients exhibits a biphasic pattern: initial decline followed by a potential recovery, particularly in the thoracolumbar spine.
  • Recommended monitoring strategies involve QCT for thoracolumbar vertebrae and hip within the first 3 years, and thoracolumbar vertebrae for longer-term (5+ years) follow-up.
  • PL-QCT is a valuable tool for comprehensive BMD assessment in MHD patients.