Laurene Powell Jobs. Laurene Powell Jobs (born November 6, 1963) is an American businesswoman, executive and the founder of Emerson Collective, which advocates for policies concerning education and immigration reform, social justice and environmental conservation.
Mycobacterium tuberculosis. S aureus is the most common cause of bacterial pericarditis in children, causing approximately 40-80% of cases. Within the first 3 months after cardiac surgery, S aureus is the most common cause of purulent pericarditis.
Sometimes the cause can't be determined (idiopathic pericarditis). Causes of pericardial effusion can include: 1  Inflammation of the pericardium following heart surgery or a heart attack.  Autoimmune disorders, such as rheumatoid arthritis or lupus.