Dysrhythymia from an intrapericardial air gun pellet: a case report.

: We report a case of penetrating intrapericardial injury caused by an air gun pellet in which the onset of dysrhythmia suggested that the pericardium had been breached. Electrocardiographic changes appeared to be more useful in diagnosing pericardial penetration than transthoracic echocardiogram in this case.