Why the study?
Does quinidine prevent recurrence of arrhythmia in a patient with pseudo second degree atrioventricular block from blocked His premature beats?
Does quinidine prevent recurrence of arrhythmia in a patient with pseudo second degree atrioventricular block from blocked His premature beats?
Quinidine successfully treated pseudo second degree AV block caused by blocked His premature beats.
Quinidine may suppress His extrasystoles in pseudo-AV block; leaves open generalizability beyond this single case.
Pseudo second degree atrioventricular block resulting from blocked His premature beats was successfully treated with quinidine. The diagnosis was proved by His bundle electrogam which showed both blocked and conducted His premature beats. The blocked His prematures produced second degree atrioventricular block by making the atrioventricular junction refractory. Quinidine abolished both conducted and blocked His extrasystoles. There has been no recurrence of arrhythmia during a one-year follow-up.
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Dhurandhar et al. (1976) studied this question.
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