Key result
Doppler ultrasound reveals shortened deceleration times and abnormal venous flow reversals in restrictive myocardial processes.
Why the study?
Cardiac catheterization has been traditionally used to verify restrictive/constrictive hemodynamics, prompting evaluation of whether restrictive physiology could be demonstrated noninvasively using Doppler echocardiography.
Comparison
Patients with restrictive myocardial process vs normal control subjects
Design
Case-control study
Authors
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May support Doppler assessment of restrictive physiology; leaves open validation before clinical adoption.
Case-Control (n=54)
Appleton et al. (1988) conducted a case-control in Restrictive myocardial process (n=54). Pulsed wave Doppler ultrasound vs. Normal subjects was evaluated on Flow velocity recordings across the mitral and tricuspid valves. Pulsed wave Doppler ultrasound showed shortened deceleration times and abnormal central venous flow velocity reversals in patients with restrictive myocardial processes compared to normal subjects.
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