Vascular injuries following blunt polytrauma

Area of Science:

• Trauma Surgery
• Vascular Surgery
• Emergency Medicine

Background:

• Motor vehicle collisions are the primary cause of blunt vascular trauma.
• Limited data exists on the incidence and outcomes of blunt vascular injuries in polytrauma patients.
• This study aims to define the spectrum of blunt vascular injuries in multiple trauma cases.

Purpose of the Study:

• To describe the incidence, characteristics, and outcomes of blunt vascular injuries in patients with multiple trauma.
• To analyze the management strategies and treatment outcomes for blunt vascular trauma in a polytrauma setting.
• To identify factors contributing to morbidity and mortality in this patient population.

Main Methods:

• A 6-year prospective database review (April 2007-March 2013) at a Level I Trauma Unit.
• Inclusion criteria: patients with blunt vascular trauma and multiple injuries.
• Data collected: demographics, injury details, Injury Severity Score (ISS), New Injury Severity Score (NISS), management, and outcomes. Computed tomography (CT) angiography was the primary imaging modality for stable patients.

Main Results:

• 61 out of 1,033 polytrauma patients (5.9%) sustained 67 blunt vascular injuries, predominantly from motor vehicle collisions (92%).
• The median Injury Severity Score (ISS) was 34. Injuries were distributed across extremities (21), thorax (20), abdomen/pelvis (19), and head/neck (7).
• Endovascular repair was used in 12 patients. The overall amputation rate was 48%, with 17 deaths (28.3%), 11 directly linked to vascular injury, often from abdominal vena cava damage.

Conclusions:

• Blunt vascular injury in polytrauma is infrequent but associated with high morbidity and mortality.
• Delayed referral for peripheral vascular injuries leads to increased amputation rates due to prolonged ischemia.
• Central vascular injuries, especially vena cava injuries, are a major cause of direct mortality in polytrauma patients.