Cardiovascular impact of emerging and Re-emerging Viruses: Pathophysiological mechanisms, diagnosis, and management with a pediatric focus.

Emerging and re-emerging viruses are currently known as a major public health issue. These viruses can cause various human complications such as cardiovascular diseases (CVDs), both in adults and pediatric populations. Although various CVDs have been previously reported for emerging and re-emerging viruses, the mechanisms underlying these complications remain relatively unknown. Children and infants, while commonly developing less severe symptoms, may experience notable cardiovascular manifestations during infections caused by emerging and re-emerging viral infections, which can result in both acute and long-term complications. The present review aims to discuss various cardiovascular complications linked to emerging and re-emerging viral pathogens (including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), dengue virus (DENV), Zika virus (ZIKV), and chikungunya virus (CHIKV)) such as arrhythmias, myocarditis, vascular disorders, and thromboembolic conditions, particularly among the pediatric population. This review also addresses the potential mechanisms by which SARS-CoV-2, DENV, ZIKV, and CHIKV may impact the cardiovascular system and their clinical implications. Moreover, it discusses the diagnostic challenges for viral-caused cardiovascular disorders in children, owing to their common subtle or atypical manifestations. Finally, it addresses the present therapeutic specifically used for pediatric cases.