Tuesday, March 11, 2008
Closed pneumothorax
Overview wound entered immediately after wound closure, pleural cavity is still isolated from the outside world, pleural cavity pressure is less than atmospheric pressure. that is, at negative pressure. Under the pleural cavity volume and lung spiritless plot subsidence can be divided into a small extent, the volume and massive pneumothorax. Pneumothorax refers to a small number of atelectasis in the following 30%, patients can no significant respiratory and circulatory dysfunction. Dose gas chest wilt stuck in 30% ~ 50%, while large air chest shrink 50%, may treatment, short breath, and so on the performance of hypoxemia. Visibility investigation body contralateral to the tracheal deviation, lateral chest injury was spontaneous delivery drum sound, breath sounds significantly decreased or disappeared, a few wounded, there may be the subcutaneous emphysema often with the rib fracture site. X-ray diagnosis of closed pneumothorax is an important means But especially small pneumothorax is not allowed up the seriousness of post - anterior radiograph were easily missed. Thoracentesis could contribute to the diagnosis and treatment. Treatment of small closed pneumothorax may absorption, without special treatment, but to observe its development and changes. , Pneumothorax can first large pleural puncture, if not always pumped, exhaust ventilation and soon reached before the plot which, the other side also pneumothorax, hemothorax merger, the firms need general anesthesia or required mechanical ventilation, etc., should be placed thoracic drainage. The original lung function were poor and the elderly, and other parts of the merger seriously injured, For example, severe brain injuries and severe shock patients, closed pneumothorax on the treatment should take a positive attitude. Treatment alert for the development of tension pneumothorax. Single sex closed pneumothorax is not life-threatening.
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