chest trauma. Majid Pourfahraji. Anatomy. trauma. Trauma , or injury, is defined as cellular disruption caused by an exchange with environmental energy that is beyond the body\'s resilience .
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The initial management of seriously injured patients consists of performing the primary survey (the "ABCs"—Airway with cervicalspine protection, Breathing, and Circulation); the goals of the primary survey are to identify and treat conditions that constitute an immediate threat to life.
The normally negativeintrapleural pressure becomes positive, which depresses the ipsilateralhemidiaphragm and shifts the mediastinal structures into the contralateralchest
the contralateral lung is compressed and the heartrotates about the superior and inferior vena cava; this decreases venous return and ultimately cardiac output, which results in cardiovascular collapse