Pulmonary arterial hypertension (PAH) remains one of the most challenging entities in cardiovascular and pulmonary medicine. It is rare, progressive, and, if left untreated, relentlessly fatal. Yet over the past three decades, the therapeutic landscape has transformed from therapeutic nihilism to structured, pathway-targeted, and increasingly aggressive pharmacotherapy. Contemporary registry data from Japan provide a particularly […]

Introduction: A Common Condition Hidden in Plain Sight Erectile dysfunction (ED) is not a rare or marginal condition. It is a highly prevalent, age-associated, vasculogenic and psychosocial disorder that affects quality of life as profoundly as many chronic systemic diseases. The definition is straightforward—persistent inability to achieve or maintain an erection sufficient for satisfactory sexual […]