The role of pulmonary pressure/cardiac index to identify pulmonary hemodynamic responders to acute oxygen breathing pulmonary hypertension COPD patients.

Objectives: We sought to analyze exercise-derived mean pulmonary artery pressure (Mpap) - cardiac index (CI) - relationship to expand the concepts regarding its nature and to better identify pulmonary hemodynamic responders to acute oxygen breathing (AOB - 99.5%) in pulmonary hypertension (PH) - COPD patients.

Methods: mPAP/CI and extrapolated pressure (Pext) to zero flow were obtained breathing room air (BRA) and under AOB - 99.

Pulmonary embolism as a cause of death in patients with heart disease: an autopsy study.

Study Objective: To establish the prevalence of pulmonary embolism (PE) in autopsy material at a tertiary cardiac referral center and its importance as a cause of death in patients with heart disease (HD).

Design: Case series.

Setting: National Heart Institute, Mexico City.