Page 70 - JSOM Spring 2024
P. 70

FIGURE 1  Use of tourniquets at the stages of tactic medical care.  The long-term use of the tourniquet on the limbs usually hin-
                                                             dered the evacuation of the wounded owing to heavy enemy
                                                             fire, which ignored the norms of international humanitarian
                                                             laws. Evacuation of the wounded was also difficult during sig-
                                                             nificant separation of the assault groups from the main forces.
                                                             No cases of delayed care or treatment were recorded at the
                                                             military hospitals.

                                                             The casualties associated with limb tourniquets included 57
                                                             fatalities: 17 (0.7%) due to massive blood loss and 27 (1.1%)
                                                             associated with infectious-septic complications or the pres-
                                                             ence of a background comorbidity. An additional 13 patients
                                                             (0.5%) died from multiple-organ failure.

                                                             Limb amputations were performed in 92 (3.7%) of the 2,437
                                                             wounded  who  survived.  In  all  cases,  amputations  were  per-
                                                             formed to treat multi-fragment explosive injuries without
                                                             the possibility of reconstructive intervention. The duration of
          During active hostilities, the medical units of the Southern Op-  tourniquet use in these cases ranged from 210 to 380 minutes.
          erational Command received 2,496 patients with limb injuries   Seventy-eight amputations were performed in cases involving
          that required the application of tourniquets. Injuries involving   tourniquet use of more than 6 hours. Amputations of patients
          lower extremities were most often observed, in 2,107 cases or   having tourniquets in place for longer than 6 hours were at-
          84.4% of all patients, while upper extremity lesions were seen   tributed to extensive tissue necrosis distal to the tourniquet.
          in 389 cases (15.6%). A single tourniquet was applied in 1,538
          cases (61.6%), two tourniquets in 533 cases (21.4%), and   Among limbs without amputations, 938 cases of neuropathy
          three tourniquets in 425 cases (17.0%). From 2014 to 2021,   were detected, 679 of which resolved within the 24-month
          Esmarch’s tourniquet was most commonly used. However, in   post-injury observation period. Primary limb injury was the
          2022, it was mostly replaced by CAT and similar systems, such   cause of unresolved neuropathy in147 cases.
          as Sich and Dnipro. Various tourniquets were frequently ap-
          plied to the limb segments of wounded combatants and civil-  Limb amputations were performed in 92 cases (3.7%), usually
          ians, as shown in Table 1.                         involving multi-fragment explosive injuries, when the possi-
                                                             bility of reconstructive intervention was excluded. Massive
          The duration of the tourniquet on the limb ranged from 50 to   blood loss was the primary cause of death in 68 (2.7%) of the
          380 minutes (mean duration 205.9 [standard error; SE 8.1]   wounded soldiers. Infectious-septic complications or comor-
          min), resulting in prolonged tissue ischemia in a significant   bid diseases resulted in the deaths of another 33 (1.3%).
          number of cases (Figure 2).

          FIGURE 2  Distribution of clinical cases treated with tourniquets for   Discussion
          limbs based on the duration of intervention.
                                                             Prolonged tourniquet use increases the risk of irreversible soft
                                                             tissue damage. In particular, skeletal muscles cannot tolerate
                                                             ischemia for longer than 6 hours without complete loss of vi-
                                                             ability. However, cases of functional preservation of limb have
                                                             been reported even when the tourniquet was applied for more
                                                             than 15 hours.  In the literature, there are various approaches
                                                                        10
                                                             to naming changes in the soft tissues of the extremities after
                                                             the prolonged use of a tourniquet. We propose the term tour-
                                                             niquet  syndrome  for  compartment  syndrome  resulting  from
                                                             prolonged tourniquet application. This will avoid confusion
                                                             when comparing different clinical cases.

                                                             We present our own clinical case of post-ischemic edema fol-
                                                             lowing tourniquet use for more than 6 hours. Following fasci-
                                                             otomy, severe muscle swelling was observed, and the wound


          TABLE 1  Frequency of Tourniquet Application
                                                                          Windlass rod
                         No. of applied tourniquets  Esmarch’s tourniquet  tightening systems  Improvised systems
           Location       1        2       3      2014–2021   2022    2014–2021    2022    2014–2021   2022
           Upper arm      298     55       —         128       66        14        149        —         —
           Forearm        29       7       —         11         6         3         12        —         —
           Thigh          833     394     392        231       123       152       1468       23        12
           Calf           395     86       7         51        28        56         59        3         1

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