This lecture provides a basic overview of HIV, including the history in the US and the life cycle of HIV. Dr. Burns helps to understand the importance of Antiretroviral Therapy (ART) and AIDS defining illnesses. From a critical care, perspective this lecture looks at the presentation, diagnostic criteria and treatments of common opportunistic infections associated with critical care.

Dr. Karim El-Kersh reviews the definition and WHO classification of pulmonary hypertension delving into the pathophysiology and diagnostic approach to pulmonary arterial hypertension (PAH). The treatment and prognosis of pulmonary hypertension is also reviewed with mention of some complex cases.