Related Experiment Video
Updated: Dec 11, 2025
11:30
A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro
Published on: June 2, 2022
2.2K
Optimized calcium supplementation approach in post-dilution CVVHDF using regional citrate anticoagulation
Xiao Bi1, Qi Zhang1, Feng Zhuang1
1Division of Nephrology & Critical Care Nephrology Unit, Shanghai Ninth People's Hospital, Shanghai JiaoTong University, School of Medicine, Shanghai, China.
The International Journal of Artificial Organs
|August 27, 2020
Summary
This study presents an optimized calcium supplementation method for regional citrate anticoagulation during continuous renal replacement therapy. The findings help estimate calcium removal in extracorporeal circuits, improving patient safety.
Area of Science:
- Nephrology
- Intensive Care Medicine
- Biomedical Engineering
Background:
- Regional citrate anticoagulation (RCA) is a preferred method for continuous renal replacement therapy (CRRT).
- Accurate calcium supplementation is critical for RCA safety.
- Optimizing calcium management in post-dilution CVVHDF is essential.
Purpose of the Study:
- To develop an optimized calcium supplementation strategy for RCA in post-dilution CVVHDF.
- To establish a mathematical model for precise calcium management during CRRT with RCA.
Main Methods:
- Twenty-seven patients undergoing post-dilution CVVHDF with RCA were studied.
- Ionized calcium levels were continuously monitored and maintained within a target range.
- Linear regression analysis was used to model non-protein bound calcium clearance and calcium ratios.
Main Results:
- Significant positive correlations were observed between non-protein bound calcium clearance and dialysate flow rates (r=0.647, p<0.001) and ultrafiltration/substitution fluid rates (r=0.525, p=0.005).
- The pre-filter ratio of non-protein bound to total calcium remained constant at approximately 0.83.
- A simplified equation was derived to estimate extracorporeal calcium removal based on clearance and calcium ratio.
Conclusions:
- An optimized calcium supplementation approach for RCA in post-dilution CVVHDF was successfully developed.
- This approach facilitates the estimation of extracorporeal calcium removal.
- The findings support safe and effective RCA by guiding calcium dosage adjustments.
Related Concept Videos
01:29Venous Thrombosis III: Interprofessional Care
177
Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
177
01:30Anticoagulant Drugs: Low-Molecular-Weight Heparins
1.4K
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
1.4K
01:30Continuous Renal Replacement Therapy
477
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...
477
01:25Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
257
Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
257
01:26Extracorporeal Removal of Drugs: Continuous Renal Replacement Therapy
87
Continuous Renal Replacement Therapy (CRRT) is an essential intervention for patients experiencing severe kidney dysfunction. This therapy offers a continuous mechanism for removing fluids and toxins from the bloodstream, leveraging the patient’s blood pressure to facilitate filtration through a specialized filter. This method contrasts with intermittent dialysis, providing a gentler and more consistent removal of waste products and excess fluid, which is particularly beneficial in...
87
01:18Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants
1.8K
Oral anticoagulants are vital tools in preventing and treating blood clotting disorders. This diverse class of medications can be categorized as vitamin K antagonists, exemplified by warfarin, and direct thrombin inhibitors (DTIs), such as dabigatran, as well as factor Xa inhibitors, including rivaroxaban.
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
1.8K