Vosk A, Houston C S
Heart Lung. 1977 Sep-Oct;6(5):799-805.
Two cases of mediastinal emphysema occurring in healthy individuals climbing to the summit of Mount Rainier (4,393 m.) are described. In both, the condition was probably attributable to a voluntary, forced pressure breathing technique--a modified Valsalva maneuver. The various circumstances in which mediastinal emphysema may occur are discussed, along with its possible serious complication of cardiorespiratory compromise. The means of diagnosis are presented, emphasizing that cases in which the important finding of subcutaneous emphysema is absent may be those in which the danger is greatest. Therapeutic measures that occasionally may be necessary are outlined, though the condition is usually a benign one that subsides without specific treatment.
本文描述了两例健康人在攀登雷尼尔山（海拔4393米）山顶时发生纵隔气肿的病例。在这两例中，病情可能归因于一种自主的、强迫性压力呼吸技术——一种改良的瓦尔萨尔瓦动作。文中讨论了纵隔气肿可能发生的各种情况，以及其可能出现的严重心肺功能损害并发症。介绍了诊断方法，强调在无皮下气肿这一重要表现的病例中，可能存在最大的危险。文中概述了偶尔可能需要采取的治疗措施，尽管这种情况通常是良性的，无需特殊治疗即可消退。
