Blunt and Penetrating Airway Trauma

Airway injury, be that penetrating or blunt, is a high-stakes high-stress management challenge for any airway manager and their team. Penetrating and blunt airway injury vary in injury patterns requiring prepracticed skills and protocols coordinating care between specialties. Variables including patient cooperation, coexisting injuries, cardiorespiratory stability, care location (remote vs tertiary care center), and anticipated course of airway injury (eg, oxygenating well and comfortable vs increasing subcutaneous emphysema) all play a role in determining airway if and when airway management is required. Direct airway trauma is relatively infrequent, but its presence should be accompanied by in-person or virtual otolaryngology support.

Mind the gap: life-threatening retropharyngeal haematoma resulting in acute airway obstruction following blunt trauma by closing train carriage doors

Delayed life-threatening airway obstruction due to venous injury following blunt, non-penetrative trauma to the neck.

A rare case of rapid force, blunt trauma by closing train carriage doors, leading to injury to the left internal jugular vein, subsequent retropharyngeal haematoma and airway obstruction. There was a significant delay of a few hours between injury and acute deterioration. Initial dual phase CT (unenhanced and arterial) studies identified the large retropharyngeal haematoma but the assessment of the source was inconclusive likely due to the venous injury becoming compressed by the swelling/haematoma at the time of investigation. Subsequent triple phase (unenhanced, arterial and venous) studies were performed identifying a flap in the left internal jugular vein as the likely site of vascular injury. A venous origin of haemorrhage supported the patients delayed onset of symptoms following the injury.

We suggest with blunt force trauma to the neck, in the context of suspicion of haematoma and airway compromise, the radiologist should consider protocolling a triple phase (unenhanced, arterial and venous) angiographic study.

Penetrating Internal and Common Carotid Artery Injuries Shunts versus no shunts during repair effect on neurological outcomes

BACKGROUND

Penetrating Carotid artery injuries are rarely encountered even in busy in urban Trauma Centers. Repair is preferred over ligation for Internal (IC) and Common Carotid (CC) arteries. To date, the use of temporary shunts correlated to neurological outcomes has not been reported.

OBJECTIVES ARE TO SPECIFICALLY ADDRESS THE QUESTION

In patients with penetrating IC or CC injury requiring repair, does use of temporary shunts decrease mortality and/or improve neurologic outcomes? We hypothesized that the use of temporary shunts during revascularization might produce improvements in both areas.

METHODS

A literature search was performed through Medline Complete-PubMed, Cochrane, Ovid, and Embase for the period of 1900-2019. PRISMA guidelines were utilized. Thirty-two articles met inclusion criteria, ranging from 1960-2018. These were analyzed to determine whether surgical repair was performed with or without the use of temporary shunts. External Carotid artery injuries were excluded. Pre- and postoperative neurological outcomes and overall outcomes were analyzed. Non-parametric data were analyzed with Fisher's Exact or Chi-square tests as applicable. Statistical significance was set to a p-value < 0.05.

RESULTS

There were a total of 973 patients with penetrating IC and CC injuries; 136 (14%) patients underwent ligation and were excluded. Our study population consisted of 837 patients; 126 (15.1%) with shunts (WS), 711 (84.9%) without shunts (WOS). Mortality stratified to patients repaired WS versus WOS was 5.6% versus 11.1% (p=0.058). Neurological improvement was noted to be similar for patients undergoing repair WS - 14.2% versus WOS - 13.7% (p=0.8). Worsening neurological status for patients shunted WS - 3.4%, versus WOS - 9.0% (p=0.038). Data were analyzed for outcome variables including neurological deficits with or without mortality. Patients shunted had an improved and/or unchanged neurological outcome compared to patients not shunted during repair - 91.3% versus 80.9% (p=0.0047).

CONCLUSIONS

Patients sustaining penetrating Internal and Common Carotid injuries repaired with temporary shunts have a slightly lower mortality rate and similar or unchanged neurological outcomes versus those repaired without shunts. Based on this evidence, we recommend thoughtful interoperative consideration for the use of temporary shunts for patients requiring complex repairs of these injuries.

Diagnosis, management and treatment of neck trauma

Trauma injuries to the neck account for 5-10% of all trauma injuries and carry a high rate of morbidity and mortality, as several vital structures can be damaged. Currently, there are several treatment approaches based on initial management by zones, initial management not based on zones and conservative management of selected patients. The objective of this systematic review is to describe the management of neck trauma.

Penetrating neck trauma with common carotid artery injury caused by a percussive drill: A case report

RATIONALE

Penetrating neck traumas are dangerous and have a high mortality rate, particularly in patients with common carotid artery injuries. Advances in diagnostic imaging technology have shifted management of penetrating neck injuries from mandatory exploration to selective management. The question is now regarding optimal selection of auxiliary examinations to assess "stability" rapidly and guide clinics in managing such patients.

PATIENT CONCERNS

A 56-year-old man suffered neck trauma with the right common carotid artery caused by a percussive drill. The carotid artery could not be clearly displayed in computed tomography (CT) angiography imaging.

DIAGNOSES

Penetrating neck trauma due to percussive drill bit with common carotid artery injury.

INTERVENTIONS

X-ray and bedside duplex ultrasound with color Doppler flow imaging were used to assess the state of trauma and the foreign body was removed under general anesthesia.

OUTCOMES

The patient was discharged at postoperative day 10 with no complication. The patient had no sequelae from this injury at 6-month follow up.

LESSONS

X-ray provides a comprehensive assessment of damage, and can efficiently detect foreign bodies in the skull and cervical vertebrae. Duplex ultrasound to be a viable method to exclude macrovascular injury in unstable patients who are not eligible for computed tomography angiography (CTA) or catheter angiography imaging. Widely available duplex ultrasound and x-ray should be considered in emergency situations.

Successful endovascular repair of exsanguinating penetrating carotid artery injury in two pediatric patients

Immediate operative exploration has been considered mandatory for all penetrating injuries to Zone II of the neck and in any patient who is unstable, regardless of the location of the injury. We report two cases of penetrating carotid artery injuries in children successfully managed with endovascularly placed covered stents. These cases demonstrate that endovascular carotid artery repair can be considered in children, including in patients with Zone II injuries and in initially unstable patients.