Why the study?
Continuous monitoring of arterial pressure is important in severely obese patients at risk for cardiovascular complications, but performance of innovative continuous noninvasive monitoring technologies needed comparison with invasive arterial pressure measurements during laparoscopic bariatric surgery.
Does continuous noninvasive arterial pressure monitoring using the vascular unloading technique provide accurate measurements compared to invasive radial arterial catheters in severely obese patients during bariatric surgery?
Population
35 severely obese patients (median body mass index, 47 kg/m2) during laparoscopic bariatric surgery
Comparison
Vascular unloading technique (Clearsight system) vs invasive arterial pressure measurements (radial arterial catheter)
Design
Comparative method evaluation study
Follow-up
45 minutes
Authors
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May not support replacing invasive arterial monitoring with Clearsight in obese patients; leaves open accuracy questions for clinical adoption.
Does continuous noninvasive arterial pressure monitoring using the vascular unloading technique provide accurate measurements compared to invasive radial arterial catheters in severely obese patients during bariatric surgery?
The noninvasive vascular unloading technique provides good accuracy for mean and diastolic arterial pressure, but only moderate accuracy for systolic pressure, compared to invasive monitoring in severely obese patients.
Rogge et al. (2019) studied this question.
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