Pediatric Inflammatory Multisystem Syndrome Temporally Associated with SARS-CoV-2: a New Challenge amid the Pandemic.

Initially, SARS-CoV-2 infection had been reported as a relatively mild case in children than in adults. Nevertheless, recent evidence found that a subset of children then developed a significant systemic inflammatory response that resembles atypical/typical Kawasaki's disease (KD) and toxic shock syndrome. This novel clinical syndrome later identified as pediatric inflammatory multisystem syndrome temporally associated with SARS-CoV-2 (PIMS-TS). In contrast with KD, PIMS-TS appears to occur in children at an older age with a predominance of gastrointestinal symptoms, hemodynamic instability, and myocardial dysfunction. However, the exact pathomechanism remains to be understood. Nevertheless, the post-viral immunological reaction is postulated to be the underlying mechanistic underpinnings. The multifaceted nature of the PIMS-TS' course underlines the need for early recognition and multispecialty care and management.