Peripheral and Central Blood Pressure Monitoring in Critically Ill Patients
Author Information
Author(s): Mignini Mariano Alejandro, Piacentini Enrique, Dubin Arnaldo
Primary Institution: Clínica Bazterrica, Buenos Aires, Argentina
Hypothesis
Peripheral and central mean arterial blood pressures are interchangeable in critically ill patients.
Conclusion
Measurement of mean arterial blood pressure in radial or femoral arteries is clinically interchangeable.
Supporting Evidence
- Central mean arterial pressure was 3 ± 4 mmHg higher than peripheral mean arterial pressure for the whole population.
- No differences in bias ± precision were found between the high and low-dose groups.
- The study included 55 critically ill patients with a variety of conditions.
Takeaway
Doctors can use either the radial or femoral artery to measure blood pressure in very sick patients, and both methods give similar results.
Methodology
This is a prospective, observational study comparing simultaneous measurements of arterial blood pressure in peripheral and central arteries.
Potential Biases
Potential bias due to different catheter sizes used for peripheral and central measurements.
Limitations
The study excluded post-cardiac surgery patients and those with catheter malfunction, which may limit generalizability.
Participant Demographics
55 critically ill patients, with a mix of medical and surgical conditions.
Statistical Information
Confidence Interval
95% limits of agreement of 16 mmHg
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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