Pleural effusion

Pleural effusion is normal chest 3~15ml liquid breathing movement to lubricate, But the pleural cavity fluid volume is not constant. Even normal daily also 500 ~ 1000ml of liquid formation and resorption. Pleural cavity of capillary liquid from the vein-absorption of the remaining liquid recovery by the lymphatic system to the blood, filtration and absorption in the dynamic balance, as if local or systemic disease disrupted this balance, Pleural causing the liquid form or excessive absorption bardkinesia, will generate pleural effusion. Pleural effusion types (1) TRANSUDATE : congestive heart failure, liver disease, hypoproteinemia and pulmonary embolism caused; (2) changing TRANSUDATE : Because lung reversed, diaphragmatic hernia, liver incarceration, congestive heart failure or exfoliated tumor lymphatic flow obstruction caused. Change TRANSUDATE neutrophils, mesothelial cells and red blood cells than fluid leakage, increasing the proportion of protein; (3) effusions : the corruption and non-corruption nature effusions two. Sexual corruption effusions due to trauma or perforation, bacteria, fungi, viruses; Worms, entered the chest caused; non-sexual corruption effusions see cats infectious peritonitis, pancreatitis uremia, and the nascent reverse lung tumor; (4) tumor effusion : cat found in thymus lymphosarcoma pleural mesothelioma young dogs, older animals metastatic carcinoma and adenocarcinoma. Angiosarcoma, heart swollen tumor, caused by non-sexual corruption effusions; (5) chylous effusion : also called chylothorax. In view of congenital anomalies thoracic duct, and tumor thoracic duct embolization. Cat cardiomyopathy or chronic pleural effusion, the cells were broken, can lead to false chylothorax; (6) pleural blood : be found in trauma, dicoumarol poisoning. Clinical manifestations : age, medical history, symptoms and signs in the diagnosis of both reference value. Tuberculous pleurisy more common in young people, often fever; Middle-aged and older patients with lung cancer should alert caused by pleural metastasis. Inflammatory effusion for more exudative, accompanied chest pain and fever. Heart failure caused by pleural effusion of fluid leakage. Liver abscesses with pleural effusion right to respond pleurisy, but also for empyema. Effusion less than 0,3L when symptoms was not significant. If more than 0,5L patients essay to explore this trend chest. Voiced partial spontaneous delivery, respiratory noise reduction. After an increase in the volume of fluid, pleural two separate, no longer breathing with the friction, chest pain begins to ease, but the breathing difficulties have also been intensified; effusion large mediastinal organs pressure, heart palpitations and breathing difficulties more pronounced.