Guest editor Terence K. Trow has assembled an expert team of authors on the topic of Pulmonary Arterial Hypertension. Articles include: Epidemiology of Pulmonary Arterial Hypertension, Pathology of Pulmonary Hypertension, Genetics of Pulmonary Arterial Hypertension, Diagnosis of Pulmonary Arterial Hypertension, Pulmonary Hypertension Owing to Left Heart Disease, Pulmonary Hypertension due to Lung Disease and/or Hypoxia, Pulmonary Arterial Hypertension Associated with Congenital Heart Disease, World Health Organization Group 5 Pulmonary Hypertension, and more!

Venous Thromboembolism, a critical area for all pulmonary medicine specialists, is completely reviewed and updated in this issue, which starts with an epidemiological overview and then provides an in-depth look at the following topics: use of clinical probability algorithms (Geneva Score, Wells Criteria, and others), imaging techniques, deep vein thrombosis prophylaxis, chronic thromboembolic pulmonary hypertension, inherted hypercoaguable states, venous thromboembolism and pregnancy, interventional therapies (such as fragmentation, IVC filters, and surgical embolectomy), massive pumonary embolism and the role of thrombolysis, and upper extremity DVT.