Streptococcal Toxic Shock Syndrome (STSS) Complication of invasive GAS disease characterized by shock & MOF → occurs as a result of capillary leak & tissue damage due to release of inflammatory cytokines induced by streptococcal toxins Complicates invasive GAS in 30% of cases; 50% in nec fasc Diagnostic Criteria: • Isolation of GAS from sterile body site (i.e., blood) • Early onset hypotension • Multi-organ involvement (2+): kidneys, liver, lung/ARDS, coagulopathy, erythematous macular rash, soft tissue necrosis STSS Treatment Strategy: • Empiric therapy in suspected STSS: Clinda + vanco + pip-tazo or carbapanem • Tailored therapy once dx established: Clinda + Penicillin G - Linezolid if isolate clinda R • Adjunctive: IVIG 1g/kg on day 1, 0.5g/kg on day 2 + 3 BIDMC Infectious Diseases Fellowship @BIDMC_IDFellows #Streptococcal #Toxic #Shock #Syndrome #STSS #treatment #management #diagnosis