Table 5.

Investigations

Investigation	Result	GSW (n=58)	SW (n=452)
CT angiography		53 (91.4%)	335 (74.1%)
	Positive for a vascular injury	12 (22.6%)	57 (17.3%)
Catheter directed angiography		1 (1.7%)	15 (3.3%)
	Positive for a vascular injury	1 (100%)	8 (53.3%)
Water soluble contrast swallow		25 (42.1%)	187 (41.4%)
	Positive for a digestive tract injury	4 (16.0%)	25 (13.4%)
Endoscopy		0 (0%)	14 (3.1%) (5 bronchoscopy, 1 laryngoscopy, 8 upper endoscopy)
	Positive for a digestive tract / airway injury	0 (0%)	10 (71.4%)
Duplex Doppler imaging		1 (1.7%)	2 (0.4%)
	Positive for a vascular injury	1 (1.7%) (false positive)	0 (0%)

GSW = gunshot wound; SW = stab wound; CT = computed tomography