What is the prognosis of enteroviral diseases?

Updated: Mar 17, 2021
  • Author: Robert A Schwartz, MD, MPH; Chief Editor: Michael Stuart Bronze, MD  more...
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Polio: Paralytic polio leads to permanent weakness in the affected limb. Permanent weakness occurs in approximately two thirds of patients. Postpolio syndrome is slowly progressive. In the epidemic era, poliomyelitis carried an overall mortality rate of 5%-10%.

Aseptic meningitis: Fever and signs of meningeal irritation usually resolve within 1-2 weeks in infants; some adults are ill for 2-3 weeks. Long-term prognosis is excellent.

Pleurodynia: Patients with epidemic pleurodynia completely recover.

Myopericarditis: The prognosis is good, and mortality rates in acute infection are low. Severe cases can result in dilated or restrictive cardiomyopathy, persistent electrocardiographic abnormalities, or congestive heart failure. Twenty percent of patients may have recurrent myopericarditis and develop chronic dilated cardiomyopathy. Infants are at a higher risk of developing long-term sequelae.

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