[The characteristics of myocarditis in diphtheria in adults based on data from the 1993-1994 epidemic].
In 45% of 212 cases of diphtheria toxica in adults heart complications were observed. The earliest ECG signs are sinus bradycardia, AV dissociation, AV escape rhythms, prolongation of QT interval, high U wave (U > T, T + U wave). In the cases where differential diagnosis of myocarditis and other heart diseases in adults is difficult, the attention must be focused on the sickle-like depression ("sagging") of ST-interval that is a typical sign in diphtheric myocarditis. The most severe forms of diphtheric myocarditis are complicated by AV and intraventricular conduction disturbances and malignant ventricular arrhythmias.
Reĭderman
M I
MI
Astaf'eva
N V
NV
Bobrinskaia
I G
IG
Vorob'ev
A S
AS
D000328:Adult; D003937:Diagnosis, Differential; D004165:Diphtheria / Q000150:complications / Q000175:diagnosis* / Q000401:mortality; D004196:Disease Outbreaks; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009205:Myocarditis / Q000175:diagnosis* / Q000209:etiology / Q000401:mortality; D011379:Prognosis; D012426:Russia / Q000453:epidemiology