Page 95 - JSOM Fall 2022
P. 95

made  this  a  poor  option.  First,  the  SLM  was  still  receiving
                                                                 urgent casualties and it was thought to be quicker to do a sur­
                                                                 gical airway then to attempt direct laryngoscopy with the on­
                                                                 going oral bleeding. Second, a helicopter medical evacuation
                                                                 was available in 15 minutes. The helicopter did not have the
                                                                 capability of ventilator support nor monitoring for a sedated
                                              FIGURE 1  Obstructed   patient. It was the opinion of the surgical team that the patient
                                              airway conditions,   would be able to maintain his own airway if the bleeding was
                                              due to an active
                                              hemorrhagic wound   stopped and the potential airway injury was bypassed. Indeed,
                                              in the left mandibular   the SLM team performed an emergency cricothyrotomy pro­
                                              angle with a facial   cedure to ensure surgical definitive airway management before
                                              metal foreign body.   facial bleeding control. Due to concerns about oversedation,
                                              Patient’s photograph.  which would have precluded his evacuation and required on­
                                                                 going monitoring during a mass casualty incident, the SLM
                                                                 team elected to use light procedural anesthesia. The patient re­
                                                                 ceived by intravenous injection 2mg of midazolam and 80mg
                                                                 of ketamine. No local anesthesia was performed according to
                                                                 French military guidelines. The otolaryngologist conducted a
                                                                 bedside surgical technique employing a “scalpel­bougie­tube”
                                                                 method, in about 3 minutes, with no immediate complication.
                                                                                                                4
              This was further compounded by a right lateral zone III   An endotracheal tube was cut to a smaller length and carefully
              wound, a comminuted fracture of the anterior mandible, frac­  secured in place before medical evacuation.
              tured teeth, and active bleeding in the mouth (Figure 2). He
              was dyspneic on presentation with an open right chest wound   Bleeding control was ensured by a cervical compressive pack­
              but did not appear to have tension pneumothorax physiology   ing with QuikClot Combat Gauze (https://quikclot.com/) and
              (Figure 2). The Glasgow Coma Scale score was 13 (eye 4, ver­  a facial dressing to close the mandibular symphysis fracture
              bal 4, motor 5). He was confused, agitated and diaphoretic.   (Figure 3). As he desaturated before the cricothyrotomy, a
              His heart rate was 140 beats per minute with a systolic blood   needle thoracostomy was performed and found to be negative
              pressure of 120mmHg, in Class 3 shock. Oxygen saturation   for tension pneumothorax. After the cricothyrotomy, oxygen
              was 91%. The casualty was previously equipped at the front­  saturation was 96% and an extended­focused assessment with
              line with a peripheral venous line and an oxygen mask, hardly   sonography for trauma (E­FAST) was performed and showed
              accepted by the patient. The otolaryngologist and nurse anes­  no hemopneumothorax. A three­sided occlusive chest bandage
              thetist managed the casualty at his arrival to the SLM, while   was placed on the thoracic wound (Figure 3). The medical
              other members of the team were dealing with other simultane­  evacuation team reported no complications en route and the
              ous casualties. In an effort to maintain a patent airway, they   patient was alive 2 days later.
              removed the foreign body, suctioned the mouth, and attempted
              hemorrhage control. With the inability to compress the facial
              injuries to stop hemorrhage, concern for upper airway and   FIGURE 3  Damage
              possibly tracheal injury, and worsening mental status, the de­  control management
              cision was made to perform an emergent surgical airway.  with emergency
                                                                 cricothyrotomy,
                                                                 needle thoracostomy,
              While it may have been physically possible to do an endotra­  three-sided occlusive
              cheal intubation, there were several operational factors that   chest bandage,
                                                                 and cervicofacial
                                                                 compressive packing.
                                                                 Patient’s photograph.


                                                                 Discussion
                                                                 This case report illustrates the complexity and rapidity of
                                                                 tactical decision making in an operational environment and
              FIGURE 2                                           highlights the operation indications for emergent cricothyrot­
              Hemorrhagic
              cervical wound                                     omy in patients with severe cervicofacial injury. In this case,
              and nonblowing,                                    the main reason for the emergent airway was to avoid further
              nonhemorrhagic chest                               management of a patient who required sedation and mechan­
              wound.                                             ical ventilation in the context of a mass casualty event and
              Patient’s photograph.                              poor medical resources/capabilities during evacuation. During
                                                                 the Afghanistan and Iraq conflicts (2001–2011), traumatic
                                                                 airway obstruction was responsible for 8% of fatalities caused
                                                                 by penetrating injury to the face and neck anatomy; it was the
                                                                                                     1,2
                                                                 second leading cause of preventable mortality.  These find­
                                                                 ings are similar, but slightly greater than that previously re­
                                                                                                      5
                                                                 ported for airway obstruction mortality (1–2%).  Historically,
                                                                 airway obstruction is the third leading cause of potentially
                                                                       Operational Consideration for Airway Management   |  91
   90   91   92   93   94   95   96   97   98   99   100