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to be a lifesaving advance in the context of the highly lethal   military adopted more than 25 major innovations in care in
              combat care environs of World War I forward care facilities.  little more than a decade.” 5
              To place the methodology of transfusion during World War   As US and NATO troops withdraw from Afghanistan, the
              I into context, it is of note that Robertson advocated the sy-  continued exposure to care of the critically injured combat
              ringe-cannula method as opposed to the two other method-  casualty will be significantly diminished. The military medi-
              ologies available during this period. One of the first methods   cal community must continue to advance knowledge and seek
              of blood transfusion was originally pioneered by Dr George   opportunities to sustain critical lessons learned during the past
              Crile (Cleveland, Ohio). In 1906, Crile adopted Alexis Carrel’s   two decades. The past 20 years have consisted of “the highest
                                                                                                        5
              technique of vessel anastomosis for transfusion by construct-  rate of casualty survival in the history of warfare.” It is of the
              ing a temporary surgical vascular anastomosis between the   utmost importance that the medical advances discovered—or
              radial artery of the donor and the antecubital or basilic vein   in some cases, rediscovered (as presented in this review)—are
                          8
              of the recipient.  This technique proved to be time consuming   refined, formalized, and applied across all aspects of training
              and technically challenging. The second technique was still in   and preparation. Military medical treatment facilities such
              evolution during this period and consisted of using glass con-  as the Level I trauma center at Brooke Army Medical Center
              tainers (sometimes lined with paraffin) with the addition of   must be sustained and expanded to continue an intensive ex-
              sodium citrate solution to inhibit coagulation.    posure to injured trauma patients. The military civilian part-
                                                                 nerships must be sustained not only as training platforms but
              Compatibility Testing Was Possible,                as also centers of excellence for inquiry and investigation. Side
              Although Not Uniformly Used During World War I     by side, military members must transition to the peace-time
                                                           3
              Robertson discussed using “preliminary haemolysis tests”  if   setting of the urban training while constantly honing their mil-
              time permitted to determine if there was to be a hemolytic reac-  itary lessons learned in a contemporaneous CONUS setting.
              tion to the donor’s blood. The description of the classic blood
              groups (A, B, O) was first published in 1900 by Landsteiner,
                                                             1
              but its significance in relation to incompatibility reactions was   Lest We Forget
              not fully established. Robertson and his medical colleagues   US military forces have entered every major conflict during
              did not routinely complete typing or cross-matching in their   the past century with practice guidelines citing the use of crys-
              reported series. In this, and subsequent publications, Robert-  talloids as the primary resuscitation fluid for the injured. We
              son discusses the potential significance of this issue and even   leave this conflict with a recognition of the lifesaving benefits
              acknowledges that one patient may have died of a hemolytic   of whole blood transfusion beginning at the point of injury
              reaction. It is important to review this original publication and   and extending through the military continuum of care. The
              commentary in the context of the medical conditions of the   study by Shackleford et al.  is perhaps the most recent of nu-
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              time. The patients cared for by Robertson and forward field   merous confirmations of Robertson’s century-old observation
              hospitals were in dire conditions, often in advanced states of   that “whole blood is the most appropriate fluid for the com-
              hemorrhagic shock at the time of their presentation. Clearing   bat casualty.”  Whole blood transfusion appears to be securely
                                                                           3
              the battlefield of casualties required hours (at best) and some-  in place across the clinical practice guidelines of our military
              times days. Movement of casualties from clearing stations to   medical system from the field to definitive care. Nonetheless,
              surgical facilities occurred over a period of days and some-  now is not the time for complacency but rather the time to
              times weeks, rather than the “golden hour” construct of re-  secure these lessons written in blood. It is encouraging to note
              cent conflicts. Patients routinely presented to Robertson’s and   that there are now multiple areas across the civilian trauma
              other forward surgical facilities with profound hypotension,   community where whole blood is becoming an accepted prac-
              imperceptible  blood  pressure,  absent  peripheral  pulses,  and   tice, to include the prehospital arena. A notable example of
              concomitant dehydration. In this setting, the additional delay   this is the city of San Antonio, Texas, where whole blood is
              of testing blood before transfusion appeared to be outweighed   available on both ground and rotary wing prehospital sys-
              by the dramatic and lifesaving results of the successful whole   tems in the region as well as the Level I trauma centers at the
              blood transfusion. To view through a historic lens, these pa-  University of Texas Health Science Center and Brooke Army
              tients were often moribund at presentation and an interven-  Medical Center.
              tion such as whole blood transfusion was nothing short of
              miraculous. (The authors both note that their first experiences   Additional inquiry and research regarding best practices for
              with the transfusion of warm, fresh whole blood in theater   whole blood and massive transfusions must continue and be
              struck a similar impression with respect to its positive impact   refined. Storage methodology and solutions have changed lit-
              on the severely injured casualty.)                 tle during the past century since the original description of
                                                                 sodium citrate solution. Further investigation of whole blood
                                                                 storage solutions  and the changes that occur within whole
              Where Do We Go From Here?
                                                                 blood while stored (“storage lesions”) is warranted. This re-
              Since antiquity, it has been recognized that periods of armed   search offers the opportunity to develop a better understanding
              conflict dramatically advance the care of the injured patient;   of the limitations of whole blood storage while further refining
              the Global War on Terror has been no exception. This concept   our knowledge of the potential adverse effects of prolonged
              was captured in the comments of Dean (Dr) Art Kellerman   storage (particularly in the solute of the stored whole blood).
              in  Out of the Crucible: How the US Military Transformed
              Combat Casualty Care in Iraq and Afghanistan: “The pace   The increased prevalence of whole blood in the prehospital
              at which this transformation occurred is as astonishing as its   environment also supports further investigation into the role
              scope. It has long been said it takes an average of 17 years for   of ionized calcium levels in patients presenting in hemorrhagic
              a new discovery to be adopted into medical practice. The US   shock. The addition of calcium as a fourth arm to the “lethal

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