| regurgitant | Regurgitating; flowing backward. (05 Mar 2000) |
|---|---|
| regurgitant fraction | The amount of blood regurgitated into a cardiac chamber divided by the stroke output; normally, no blood regurgitates; in patients with severe valvular lesions such as mitral or aortic insufficiency, regurgitation can approach 80%; this fraction affords a quantitative measure of the severity of the valvular lesion. (05 Mar 2000) |
| regurgitant murmur | A murmur due to leakage or backward flow at one of the valvular orifices of the heart. (05 Mar 2000) |