Synopsis: Patients with chronic thromboembolic pulmonary hypertension have similar vasodilator responsiveness as patients with pulmonary arterial hypertension, possibly indicating similar pathophysiologic derangements.
Source: Ulrich S, Fischler M, Speich R, et al. Chronic thromboembolic and pulmonary arterial hypertension share acute vasoreactivity properties. Chest. 2006;130:841-846.