Page 52 - JSOM Summer 2020
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Antivenom Algorithm:
                                                     AFRICOM AOR                             NOTE:
                                                                                      Yellow background indicates that
                                                                                     a product meets both criteria below:
                                                   Follow list of steps outlined in CPG:  1) broad-spectrum regional coverage
                                                   Universal Approach to Snakebite     2) freeze-dried / field-stable
                                                 Assessment, Diagnosis, and Treatment

                                                        Patient with S/Sx of   NO
                                                          envenomation?
                                                                                 Monitor for 24 hours and
                                                             YES                  discharge according to
                  NO ANTIVENOM for venom in eyes.                                     Step #17
              Antivenom used for bites, not for ocular exposure.  Venom ophthalmia?
                                               YES
                Irrigate extensively and treat like a chemical  (spitting cobras)
              exposure. See Venom Ophthalmia section in CPG.
                                                             NO


                                     Sub-Saharan Africa    Region?                 North Africa



                                        Syndrome?                                  Syndrome?




                           NEUROTOXIC   HEMOTOXIC  CYTOTOXIC          NEUROTOXIC   HEMOTOXIC  CYTOTOXIC






                1st line = POLYSERP-P           POLYSERP-P        POLYSERP-M             1st line = POLYSERP-M
                COMPLETE REGIONAL         YES                                  YES       COMPLETE REGIONAL
              COVERAGE ALL SYNDROMES             available?         available?         COVERAGE ALL SYNDROMES
              Initial dose = 6 vials IV/IO push,                                       Initial dose = 6 vials IV/IO push,
               additional 2 vials as needed                                             additional 2 vials as needed
                                                                      NO
                                                    NO

                                     Syndrome?                                         Syndrome?




                        NEUROTOXIC  HEMOTOXIC   CYTOTOXIC                 NEUROTOXIC  HEMOTOXIC   CYTOTOXIC






                                                                      2nd line = NAVPC-P   2nd line = NAVPC-P
                2nd line = SAIMR-P              2nd line = SAIMR-P

                Initial dose = 10 vials,        Initial dose = 10 vials,   Initial dose = 10 vials,  Initial dose = 5 vials, additional 5
                                                                     additional 5 vials as needed  vials as needed
              additional 5 vials as needed    additional 5 vials as needed
                                     Boomslang
                                      bite? (rare)               Treatment failure?                 Treatment failure
                                  YES        NO
                                                                                3rd line = POLYSERP-P
                       2nd line = SAIMR-B                                  Covers some North African species but is
                    COVERS BOOMSLANG ONLY                                    designed for sub-Saharan Region
                                           Contact snakebite
                       Initial dose = 2 vials,   expert for consult              Initial dose = 6 vials,
                     additional 1 vial as needed                               additional 2 vials as needed



          50  |  JSOM   Volume 20, Edition 2 / Summer 2020
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