maximum rate of positive change in left ventricular blood pressure maximum rate of positive change in left ventricular blood pressure to left ventricular end-diastolic volume ratio 2018-11-27T15:38:49Z A calculated measurement in which the maximum rate of positive change in left ventricular blood pressure is divided by the left ventricular end-diastolic volume, and the result presented as a ratio, fraction, quotient or percentage. sjwang