THIS case of tachycardia in a child 6 years of age is presented because of the history of persistent tachycardia in the mother and because of the variable responses to the many therapeutic procedures used. Irritable heart and disturbance in heart action are not unusual in children, but they do not persist. Tachycardia may follow acute infections or emotional disturbances, particularly in hypersensitive children. Persistent tachycardia, such as occurred in this case, is rare. There are not many cases reported in the literature. Russell and Ellison in 1927 reported a case of prolonged tachycardia associated with congenital heart disease in an infant 15 months of age.1 Review of the history of this case suggests a probable Stokes-Adams syndrome beginning at 4 months of age. Quinidine sulfate reduced the pulse rate from 300 per minute to 100 and kept the rate down for fourteen days, after which the child was
PETERMAN MG. PROLONGED TACHYCARDIA. Am J Dis Child. 1946;71(1):53–66. doi:10.1001/archpedi.1946.02020240060006
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