单词 | spontaneous pneumothorax |
释义 | spontaneous pneumothoraxspontaneous pneumothorax[spän′tā·nē·əs ‚nü·mō′thȯr‚aks]spontaneous pneumothoraxspon·ta·ne·ous pneu·mo·thor·ax[MIM*173600]spontaneous pneumothoraxEmergency medicine A condition affecting ± 17,000/yr–US, which may be idiopathic or 2º to underlying pulmonary disease–eg, COPD, most commonly occurring in previously healthy tall, thin ♂, age 20-40, 2º to rupture of subpleural blebs At-risk Smokers, family Hx of SP, asthma, emphysema, pneumothorax, rapid ascent to high altitude, histiocytosis.Clinical Abrupt chest pain, with SOB proportionate to the size of the pneumothorax; tension pneumothorax, while rare, may compromise the circulation by a ball-valve mechanism Treatment Suction followed by water seal drainage Prognosis 30% recur on the same side, a tendency that may be ↓ by intrapleural tetracycline; 10% occur de novo on the opposite side spon·ta·ne·ous pneu·mo·thor·ax(spon-tā'nē-ŭs nū'mō-thōr'aks)spontaneous pneumothoraxSudden and unexpected incursion of air into the space between the two layers of the PLEURA so that the underlying lung collapses. The usual cause is rupture of a congenital bleb on the inner pleural layer so that air passes from the lung. In most cases the leak seals itself and the lung soon re-expands.Spontaneous pneumothorax |
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