Pulmonary artery pulsatility index and adverse outcomes in patients with chronic obstructive pulmonary disease.
INTRODUCTION Pulmonary hypertension (pH) is a recognized complication of chronic obstructive pulmonary disease (COPD), in which right ventricular (RV) dysfunction is associated with worse outcomes. The prognostic value of the pulmonary artery pulsatility index (PAPi), a load-dependent surrogate of RV performance, remai...