• J Kiev and M D Kerstein.
• Department of Surgery, St. Barnabas Medical Center, Livingston, New Jersey.
• Surg Gynecol Obstet. 1992 Sep 1;175(3):249-53.

AbstractThe current study examined whether a three hour roentgenogram of the chest was as reliable as the six hour roentgenogram of the chest in detecting delayed complications (that is, pneumothorax and hemothorax) of penetrating and nonpenetrating trauma to the chest. The 285 patients in the study were placed into three groups: those stabbed in either the chest or back; those sustaining multiple fractures of the ribs, and those with gunshot wounds to the chest or back. All the patients selected for study by three and six hour films of the chest were asymptomatic on admission and no pneumothorax or hemothorax was seen on initial anteroposterior and lateral roentgenograms of the chest. None of the patients included in the study required immediate operation. Twelve patients (4 percent) had delayed pneumothoraces on the three hour roentgenogram of the chest. Nine of these 12 (75 percent) required thoracostomy tube drainage, while the remaining three patients were managed with needle aspiration. No additional patients had complications on the six hour roentgenogram of the chest. Computed tomographic (CT) scan discovered five additional patients (2 percent) with pneumothoraces not visualized by the three or six hour films. Seventeen patients (6 percent) had delayed pneumothoraces despite negative admission roentgenograms of the chest and lack of symptoms. Twelve of the 17 (71 percent) were discovered on three hour roentgenogram of the chest, while an additional five of 17 (29 percent) were only seen by CT scan. Three hour roentgenograms of the chest are as reliable as six hour roentgenograms of the chest in visualizing the development of delayed complications of penetrating and nonpenetrating thoracic trauma. The CT scan is more effective than the roentgenogram of the chest in visualizing small pneumothoraces, but its use as a screening tool for detection of delayed complications of trauma to the chest pneumothoraces is probably cost-prohibitive.

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