Respiratory Fluctuation of Peak Systolic Velocities in the Carotid Doppler Waveforms of Patients With Obstructive Airway Disease: Evidence of Pulsus Paradoxus With Experimental Validation.
Mark A KliewerWilliam B DykeChristopher W BirchAnjuli R BagleyPublished in: Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine (2020)
The PSV variation is greater in patients with increased airway resistance. Similar changes are evident in volunteers breathing into resistors. These findings likely reflect pulsus paradoxus.