TY - CHAP M1 - Book, Section TI - Pulmonary Thromboembolism A1 - Doherty, Gerard M. PY - 2010 T2 - Quick Answers Surgery AB - • Deep venous thrombosis (DVT) most common source of pulmonary embolism (PE)• Uncommon causes of embolism include: -Air (complications from central lines)-Fat (long bone fractures, respiratory insufficiency, coagulopathy, encephalopathy, petechiae)-Amniotic (during active labor)-Tumor emboli from RA or inferior vena cava (IVC)• < 10% of PE cause pulmonary infarction• Size and frequency of PE determines disease and outcome• PE obstructing large pulmonary artery: RV failure• PE causes release of vasoactive amines causing severe pulmonary vasoconstriction, increased dead space and hypoxia from right-to-left shunt• Reflex bronchial vasoconstriction common SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/11/07 UR - accesssurgery.mhmedical.com/content.aspx?aid=1004107133 ER -