What this means
This trial plans to test whether using ultrasound to remove tiny air bubbles from a dialysis circuit helps the filter last longer. No results have been posted yet, so we do not know the answer.
Plain-English summary written by an AI model from the registry listing.
- Status
- Opening soon
- Who can join
- Ages 18 and over
- Where
- Not listed
The science
- Registered title
- Ultrasound-Guided Microbubble Removal and Filter Lifespan During CRRT: A Pilot Crossover Study
- Trial ID
- NCT07005531 ↗
- Phase
- Not applicable
- Study type
- interventional
- Conditions
- Acute Kidney Injury, Continuous Renal Replacement Therapy (CRRT), Filter Clotting, Microbubbles, Ultrasound-Guided Microbubble Removal
- What is tested
- Ultrasound-Guided Microbubble Clearance During Circuit Priming
- Sponsor
- First Affiliated Hospital of Wannan Medical College
- Ages
- 18 Years to no maximum
- Dates
- First posted Jun 5, 2025 · updated Jun 5, 2025
Registry summary
What is this study about? This study is designed to evaluate whether ultrasound-guided removal of microbubbles during circuit priming in Continuous Renal Replacement Therapy (CRRT) can extend the filter lifespan for critically ill patients who require CRRT. The investigators aim to determine if this technique improves the duration of effective filter use and reduces complications related to filter clotting.
Who can join? Adults (18 years or older) admitted to the Intensive Care Unit (ICU) and diagnosed with acute kidney injury (AKI) or chronic kidney failure (CKD) who require CRRT and are expected to undergo at least two sessions of CRRT treatment.
Participants or their legal representatives must provide signed informed consent.
Who cannot join? Patients with severe coagulation disorders, platelet count \<30×10\^9/L, contraindications to anticoagulation, significant changes in clinical scores or blood tests between CRRT sessions, or any other condition deemed unsuitable by the investigator.
What will happen during the study?
Two Treatment Methods:
Conventional Priming (Control): The CRRT circuit will be primed following the standard visual bubble inspection protocol.
Ultrasound-Guided Priming (Intervention): The circuit will be primed using real-time ultrasound to detect and remove microbubbles from key locations.
Each participant will receive both interventions in random order, separated by a washout period of at least 24 hours.
Safe and Routine Monitoring:
Ultrasound scans will be performed on the filter and circuit to guide microbubble removal.
Standardized CRRT treatment protocols, including filter type and anticoagulation regimen, will be used for all sessions.
Other Data Collection:
Patient information (e.g., age, sex, medical history, APACHE II score) CRRT treatment details (e.g., filter lifespan, filter clotting incidence, coagulation parameters) Monitoring of adverse events and clinical outcomes (including 28-day survival and treatment costs) What are the benefits and risks? Benefits: This study may provide evidence for a simple, non-invasive method to reduce filter clotting, improve CRRT efficiency, and enhance patient outcomes.
Risks: Ultrasound monitoring is non-invasive and does not add risk beyond standard care. All procedures are standard clinical practice.
Your Rights and Safety Voluntary Participation: Participation is voluntary; withdrawal is allowed at any time without affecting clinical care.
Ethical Approval: The study protocol is reviewed and approved by the hospital's ethics committee.
Confidentiality: All personal information and test results will be kept confidential.