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Continuous Arterial Pressure Monitoring in Conscious Rodents Using Implantable Telemetry and Comparison with the
Tingting Jiang1, Yanyan Cheng2, Lei Xiao3
1Advanced Institute for Medical Sciences, Dalian Medical University; School of Basic Medical Sciences, Xi'an Jiaotong University.
Journal of Visualized Experiments : Jove
|December 1, 2025
Summary
Implantable radio telemetry offers accurate, continuous arterial blood pressure monitoring in rodents, outperforming traditional tail-cuff methods for research. This technique is crucial for precise hypertension studies.
Area of Science:
- Physiology
- Surgical Techniques
Background:
- Radio telemetry provides reliable, continuous arterial blood pressure (BP) monitoring in conscious rodents.
- Minimizes operator-related artifacts compared to non-invasive methods.
- Implantable transmitters with pressure-sensing catheters are used.
Purpose of the Study:
- Detail a protocol for BP monitoring using radio telemetry in rodents.
- Compare telemetry BP measurements with tail-cuff measurements.
- Provide guidance on implantation, anesthesia, and data analysis.
Main Methods:
- Surgical implantation of telemetry devices via carotid artery or abdominal aorta in rodents.
- Anesthesia and postoperative care protocols.
- Acquisition and analysis of hemodynamic parameters (systolic, diastolic, mean arterial pressure, heart rate).
Main Results:
- Implantable telemetry offers more accurate and consistent BP measurements than tail-cuff methods.
- Carotid artery approach allows accurate central pressure measurement.
- Abdominal aorta approach is suitable for chronic studies.
Conclusions:
- Radio telemetry is a superior method for precise, long-term arterial blood pressure monitoring in rodent hypertension studies.
- The protocol facilitates reliable hemodynamic data acquisition.
- This technique minimizes artifacts and enhances measurement accuracy.
