Fig. 1
From: A randomized pilot study on the effect of niacin on pulmonary arterial pressure
Mean and maximum change in RVSP in mm Hg in all study groups. Mean change in estimated right ventricular systolic pressure (RVSP) in mm Hg for placebo, niacin 100 mg, and niacin 500 mg measured 1 hour after medication administration. Data displayed are for the changes observed in average RVSP (blue), and in maximum RVSP (green) observed in up to ten consecutive Doppler measurements