Stokes-Adams attacks due to acute nonspecific myocarditis.

Ten patients, all below 30 years of age (8 females and 2 males) developed Stokes-Adams attacks from complete heart block due to acute nonspecific myocarditis. Coexisting thyrotoxicosis was present in two patients and cardiogenic shock was seen in four. Temporary transvenous pacing was instituted in all but one patient. Except for two patients who developed permanent complete heart block, normal A-V conduction returned in between 1 to 12 hours after ventricular pacing in seven patients and after 12 hours of isoprenaline therapy in the final patient. The ECG returned to normal in six patients and all 10 patients survived their acute illness.