Overview
Enterovirus heart infections encompass a range of cardiac complications arising from enterovirus infections, including myocarditis and pericarditis. These conditions can be challenging to diagnose due to overlapping symptoms with other respiratory and gastrointestinal illnesses 12.Diagnosis
Clinical Presentation: Often includes fever, respiratory symptoms, and gastrointestinal issues, but cardiac involvement may present with arrhythmias or signs of heart failure 12.
Laboratory Tests: Enterovirus PCR from cerebrospinal fluid (CSF) and upper respiratory tract specimens can aid in diagnosis, though sensitivity varies by age and severity 2.
Viremia Detection: Blood processing methods, particularly mononuclear leukocytes, can enhance detection of enteroviremia in hospitalized patients 4.
Differential Diagnosis: Distinguishing from herpangina, hand-foot-and-mouth disease, and other respiratory infections requires careful clinical evaluation and diagnostic testing due to diagnostic uncertainty 1.Management
Supportive Care: Focus on managing symptoms, including fluid balance, cardiac support, and monitoring for arrhythmias 2.
Antiviral Therapy: No specific antiviral treatment universally recommended; management is primarily supportive 2.
Immunoglobulin Therapy: Considered in severe cases, particularly for neurological complications, though evidence is limited 2.Special Populations
Pediatrics: Young children, especially those under 4 years old, are at higher risk for severe complications and may require closer monitoring 25.
Comorbidities: Patients with pre-existing cardiac conditions are at increased risk for severe cardiac involvement 2.Key Recommendations
Utilize PCR testing from multiple sources (CSF, upper respiratory tract) to improve diagnostic accuracy in suspected enterovirus infections (Evidence: Moderate) 2.
Consider blood processing methods focusing on mononuclear leukocytes to enhance detection of viremia in hospitalized patients (Evidence: Moderate) 4.
Implement supportive care measures tailored to clinical presentation, including cardiac monitoring in pediatric patients and those with underlying heart conditions (Evidence: Expert opinion) 2.References
1 Yang TO, Huang WT, Chen MH, Chen PC. Diagnostic uncertainty of herpangina and hand-foot-and-mouth disease and its impact on national enterovirus syndromic monitoring. Epidemiology and infection 2016. link
2 Pérez-Vélez CM, Anderson MS, Robinson CC, McFarland EJ, Nix WA, Pallansch MA et al.. Outbreak of neurologic enterovirus type 71 disease: a diagnostic challenge. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2007. link
3 Yousef GE, Brown IN, Mowbray JF. Derivation and biochemical characterization of an enterovirus group-specific monoclonal antibody. Intervirology 1987. link
4 Prather SL, Dagan R, Jenista JA, Menegus MA. The isolation of enteroviruses from blood: a comparison of four processing methods. Journal of medical virology 1984. link
5 D'Alessio D, Minor TE, Allen CI, Tsiatis AA, Nelson DB. A study of the proportions of swimmers among well controls and children with enterovirus-like illness shedding or not shedding an enterovirus. American journal of epidemiology 1981. link