TY - CHAP M1 - Book, Section TI - Empyema A1 - Doherty, Gerard M. Y1 - 2010 N1 - T2 - Quick Answers Surgery AB - • Pyothorax: Pus within pleural cavity, usually thick, creamy, malodorous• Etiology includes: -In setting of pneumonia, lung abscess, bronchiectasis, it is referred to as parapneumonic (60%)-Postsurgical (20%)-Post-traumatic (10%)-Less common causes include esophageal rupture and other chest wall or mediastinal infections• 3 temporal phases:1. Acute exudative-Sterile low viscosity pleural fluid-Low WBC count and lactic dehydrogenase (LDH)-Normal glucose-Normal pH2. Transitional (fibrinopurulent)-Increase in turbidity, WBC, and LDH-Low glucose and pH-Fibrin deposited thereby fixing the lung3. Chronic organizing-Occurs 7-28 days after disease onset-Exudates thickens, causing further fixation of lung-pH < 7.0-Glucose < 40 mg/dL SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/10/08 UR - accesssurgery.mhmedical.com/content.aspx?aid=58109737 ER -