Utility Of Changes In Heart Rate And Blood Pressure During Six Minute Walk Test As Predictors Of Outcomes In Pulmonary Arterial Hypertension

While six minute walk distance (6MWD) remains the most utilized clinical endpoint in pulmonary arterial hypertension (PAH), no studies have attempted to use other relevant data captured during the test. The aim of our study is to determine if evaluation of the parameters of right ventricular function (such as heart-rate response (HRRes)=peak heart rate (HRp) − baseline heart rate (HRb), heart-rate recovery (HRRec)=HRp − heart rate at recovery (HRr), and systolic blood pressure response (SBPRes)=peak BP − baseline BP) alone and combination with 6MWD may be more accurate in predicting outcomes.