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The Annals of Thoracic Surgery, Vol 50, 257-261, Copyright © 1990 by The Society of Thoracic Surgeons
AS Estrera, LJ Pass and MR Platt
Systemic arterial air embolism is frequently unrecognized as a cause of
death among patients with isolated penetrating lung injury. Between 1975
and 1983 at Parkland Memorial Hospital, the complication of systemic
arterial air embolism developed in 9 patients with penetrating lung injury
(six gunshots and three stabbings). Eight patients were either in profound
shock or experienced cardiac arrest and all were intubated and on
positive-pressure ventilation, frequently on a manual resuscitator bag
before or at the time of diagnosis. The diagnosis was made by direct
visualization of air in the coronary vessels in all 9 patients, and in 3
air was also aspirated from the left ventricular apex and aortic root. In
addition, 5 patients had clinically significant hemoptysis. At operation,
only an isolated injury to the lung was found in 7 of the 9 patients.
Arterial air embolism is a highly lethal complication; 6 of our patients
died, a mortality rate of 66%. Thus, it clearly behooves us to be more
alert to the possible occurrence of this complication among all victims of
penetrating chest trauma. We must accept that systemic arterial air
embolism is an established complication of penetrating lung injury and must
recognize that it occurs much more frequently than has been previously
reported. Prompt diagnosis coupled with aggressive efforts at
cardiopulmonary resuscitation is crucial for successful management of
patients with air embolism.
ARTICLES
Systemic arterial air embolism in penetrating lung injury
Division of Thoracic and Cardiovascular Surgery, University of Texas Southwestern Medical Center, Parkland Memorial Hospital, Dallas.
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