Page 14 - Journal of Special Operations Medicine - Summer 2014
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transferred to the care of the Afghan physicians, who   when tensioning the belt, then the TCD stays in place
          performed urgent surgical intervention. He ultimately   and this pitfall is avoided).
          required 10U of transfused blood and recovered  suf-
          ficiently to be transferred to another Afghan hospital   Regarding the return of distal pulses during the  MEDEVAC
          for further treatment and rehabilitation 5 days after the   flight, collateral arterial flow around the common femo-
          injury.                                            ral pressure point may occur by way of other arteries
                                                             to the lower extremity, and such collateral flow may al-
                                                             low the pulse to become palpable distally. Swan et al.
                                                                                                            12

          Discussion
                                                             described this phenomenon in normal human subjects
          This case is the first reported use to our knowledge of   with pressure point compression, but in the present case
          the SJT being used for life-threatening junctional hem-  hemorrhage control was maintained by such compres-
          orrhage in the prehospital setting. As use of the various   sion while collateral flow was observed.The casualty ex-

          available junctional tourniquets increases, it is essen-  perienced no complication from either the hemorrhage
          tial that the initial experiences with these devices be   control or the collateral flow.
          reported to increase awareness of their availability and
          capacity to treat these complex casualties. This practi-  Another advantage particularly relevant to this casualty
          cal, “real world” experience regarding the advantages   is the SJT’s ability to act as a pelvic splint. Although
          and disadvantages of these devices in turn may lead to   this casualty did not have obvious pelvic instability by
          improved training beyond what can be accomplished in   manual assessment to suggest a pelvic fracture, there
          a simulated setting for emergency healthcare personnel   was no exit wound present. It is possible that the bullet
          who may be required to use a junctional tourniquet on   struck the femur and entered the pelvis causing further
          a casualty in either the military or civilian setting 13–15    vascular damage and hemorrhage. If intrapelvic hemor-
          (Table 2).                                         rhage occurred, the SJT’s pelvic splint effect may have
                                                             diminished further blood loss. In addition to the blood
          One of the primary advantages of the SJT in the pres-  loss from the initial injury, the possibility of intrapelvic
          ent case was the relative ease in learning how to use the   hemorrhage may have accounted for the casualty’s per-
          device. The medics who successfully used the SJT had   sistent mild hypoxia and mild clinical decompensation
          only received the device approximately 1 month prior   near the end of the MEDEVAC flight.
          to using it on this casualty. After simply reading the “In-
          structions For Use” included with the tourniquet, they   The present case reported is similar to that of Corpo-
          were able to master its application and subsequently   ral “Jamie” Smith except that with the passage of 20
          performed periodic drills to reduce the time required to   years, dedicated junctional hemorrhage control research
          secure the device. During these drills, they refined their   has moved the trauma field beyond past ineffective mea-
          ability to keep the inflatable Target Compression Device   sures toward the current device-based interventions that
          (TCD) properly positioned over the common femoral   may lead to saved lives on the battlefield. Future direc-
          artery where the femoral pulse is palpated. They noted   tions for further work include increasing awareness of
          that sometimes the TCD shifted in position as the tourni-  the capacity to control prehospital junctional bleeding;
          quet belt handles were pulled asymmetrically to tighten   awareness may be improved by better logistics, refined
          the belt (if the pulls are symmetrically counterbalanced   training, and more research and development.



          Table 2  Advantages and disadvantages of interventions learned in initial laboratory use*
           Intervention                          Advantages                          Disadvantages
           Digital compression      Fast, easiest to target, one-handed  Smallest muscles tire fastest
           Manual compression       Heels of hands work quickly          If two hands are used, no hand is free
           Knee compression         Powerful, sustained, no hands        Clumsy, can obscure wound
           Kettlebell               Fast, rounded edges, frees one hand  Heavy, tilts, one hand to steady
           CRoC                     First available, best known device   Disc can fall, has the most steps
           SJT                      Fast, may use binder on pelvis       Newest, least known device
           JETT                     Harness may splint a pelvis fracture  Disc can fall, two straps, two discs
           AAT                      Targets pressure point broadly       May block vena cava
          Note: *Adapted from Kragh et al.  with permission.
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