Refractory SVT during pregnancy may persist despite therapy but can spontaneously resolve after delivery with a successful pregnancy outcome.
May support expectant management of refractory SVT near term; leaves open need for prospective data on peripartum strategies.
A patient is reported with persistent paroxysmal supraventricular tachycardia during pregnancy. Despite vigorous drug therapy and an attempted cardioversion, the arrhythmia persisted for several months up to term. During this time there was an episode of suspected pulmonary embolism. There was, however, a successful outcome to the pregnancy with spontaneous reversion of the cardiac arrhythmia following delivery.
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Robards et al. (1973) studied this question.
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