Treating SIRVA Early With Corticosteroid Injections: A Case Series.

Shoulder injury related to vaccine administration (SIRVA) is defined as "shoulder pain with limited range of motion within 48 hours after vaccine receipt in individuals with no prior history of pain, inflammation, or dysfunction of the affected shoulder before vaccine administration." Corticosteroid injections (CSIs) have been proposed as a reasonable treatment modality for SIRVA, although evidence regarding efficacy is scanty. In this case series, we present two patients diagnosed with SIRVA who received CSI within 5 days of symptom onset and saw symptom resolution within 1 month.